Television integrated i.f. amplifier circuits

Claim 2

In a television receiver including a source of television IF signals, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means having a band-pass characteristic and responsive to the low-level IF signal output of said preliminary IF amplifier means for selectively coupling low level IF signals from said preliminary IF amplifier means output terminal to a coupling means output terminal; final IF amplifier means having an input terminal coupled to said coupling means output terminal for developing a high-level IF signal output at an output terminal thereof; a video detector; an untuned coupling means for applying high-level IF signals from said final IF amplifier means output terminal to said video detector; said preliminary IF amplifier means, said final IF amplifier means, said video detector and said untuned coupling means all being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 3

a first, off-chip, tuned coupling network having a band-pass characteristic;

Claim 4

a first, off-chip, tuned coupling network having a band-pass characteristic;

Claim 5

In a television receiver including a source of television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; a video detector; first untuned coupling means for applying said high-level IF signal output oF said final IF amplifier means to said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound detector; second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector; and said preliminary, final and auxiliary IF amplifier means, said video and intercarrier sound detectors and said first and second untuned coupling means being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 6

In a television receiver including a source of television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; a video detector; first untuned coupling means for applying said high-level IF signal output oF said final IF amplifier means to said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound detector; second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector; and said preliminary, final and auxiliary IF amplifier means, said video and intercarrier sound detectors and said first and second untuned coupling means being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 7

a first, off-chip, tuned coupling network having a band-pass characteristic;

Claim 8

a first, off-chip, tuned coupling network having a band-pass characteristic;

Claim 9

means for interposing said first tuned coupling network between said tuner apparatus and said first chip terminal;

Claim 10

means for interposing said first tuned coupling network between said tuner apparatus and said first chip terminal;

Claim 11

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; a video detector; first untuned coupling means for applying said high-level IF signal output of said final IF amplifier means to said video detector; a color image reproducer responsive to the output of said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound detector; and second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector.

Claim 12

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; a video detector; first untuned coupling means for applying said high-level IF signal output of said final IF amplifier means to said video detector; a color image reproducer responsive to the output of said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound detector; and second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector.

Claim 13

means for interposing said first tuned coupling network between said tuner apparatus and said first chip terminal;

Claim 14

means for interposing said first tuned coupling network between said tuner apparatus and said first chip terminal;

Claim 15

a second, off-chip, tuned coupling network having a band-pass characteristic;

Claim 16

a second, off-chip, tuned coupling network having a band-pass characteristic;

Claim 17

Apparatus in accordance with claim 3 wherein said final and auxiliary IF amplifier means, said video and intercarrier sound detectors and said first and second untuned coupling means being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 18

a second, off-chip, tuned coupling network having a band-pass characteristic;

Claim 19

a second, off-chip, tuned coupling network having a band-pass characteristic;

Claim 20

means for interposing said second tuned coupling network between said second and fifth chip terminals;

Claim 21

means for interposing said second tuned coupling network between said second and fifth chip terminals;

Claim 22

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; a video detector; first untuned coupling means for applying said high-level IF signal output of said final IF amplifier means to said video detector; a color image reproducer responsive to the output of said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound deteCtor; and second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector; said preliminary, final and auxiliary IF amplifier means, said video and intercarrier sound detectors and said first and second untuned coupling means being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 23

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; a video detector; first untuned coupling means for applying said high-level IF signal output of said final IF amplifier means to said video detector; a color image reproducer responsive to the output of said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound deteCtor; and second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector; said preliminary, final and auxiliary IF amplifier means, said video and intercarrier sound detectors and said first and second untuned coupling means being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 24

means for interposing said second tuned coupling network between said second and fourth chip terminals; and

Claim 25

means for interposing said second tuned coupling network between said second and fourth chip terminals; and

Claim 26

In a television receiver including a source of television IF signals, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means having a band-pass characteristic and responsive to the low-level IF signal output of said preliminary IF amplifier means for selectively coupling low-level IF signals from said preliminary IF amplifier means output terminal to a coupling means output terminal; final IF amplifier means having an input terminal coupled to said coupling means output terminal for developing a high-level IF signal output at an output terminal thereof; video-detecting means for recovering video signals from television IF signals applied thereto; an untuned coupling means for applying high-level IF signals from said final IF amplifier means output terminal to said video detecting means; means for controlling the development of an automatic gain control potential reflecting undesired variations in the level of video signals applied thereto; means for coupling video signals from said video detecting means to said automatic gain control potential development controlling means; and means for rendering said preliminary IF amplifier means additionally responsive to said developed automatic gain control potential so that the gain of said preliminary IF amplifier means varies in a manner tending to compensate for said undesired level variations; said gain-variable preliminary IF amplifier means, said final IF amplifier means, said untuned coupling means, said video-detecting means, said video signal-coupling means, and said automatic gain control potential development controlling means all being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 27

In a television receiver including a source of television IF signals, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means having a band-pass characteristic and responsive to the low-level IF signal output of said preliminary IF amplifier means for selectively coupling low-level IF signals from said preliminary IF amplifier means output terminal to a coupling means output terminal; final IF amplifier means having an input terminal coupled to said coupling means output terminal for developing a high-level IF signal output at an output terminal thereof; video-detecting means for recovering video signals from television IF signals applied thereto; an untuned coupling means for applying high-level IF signals from said final IF amplifier means output terminal to said video detecting means; means for controlling the development of an automatic gain control potential reflecting undesired variations in the level of video signals applied thereto; means for coupling video signals from said video detecting means to said automatic gain control potential development controlling means; and means for rendering said preliminary IF amplifier means additionally responsive to said developed automatic gain control potential so that the gain of said preliminary IF amplifier means varies in a manner tending to compensate for said undesired level variations; said gain-variable preliminary IF amplifier means, said final IF amplifier means, said untuned coupling means, said video-detecting means, said video signal-coupling means, and said automatic gain control potential development controlling means all being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 28

video signal utilization means coupled to said third chip termInal.

Claim 29

video signal utilization means coupled to said third chip termInal.

Claim 30

a third, off-chip, tuned coupling network having a band-pass characteristic and incorporating a trap for said accompanying sound carrier;

Claim 31

a third, off-chip, tuned coupling network having a band-pass characteristic and incorporating a trap for said accompanying sound carrier;

Claim 32

means for interposing said third tuned coupling network between said fifth and fourth chip terminals;

Claim 33

means for interposing said third tuned coupling network between said fifth and fourth chip terminals;

Claim 34

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof; and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; video-detecting means for recovering video signals from color television IF signals applied thereto; first untuned coupling means for applying said high-level IF signal output of said final IF amplifier means to said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound detector; second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector; means for controlling the development of an automatic gain control potential reflecting undesirEd variations in the level of video signals applied thereto; means for coupling said recovered video signals from said video detecting means to said automatic gain control potential development controlling means; and means for rendering the gain of said preliminary IF amplifier means variable in response to said developed automatic gain control potential; said gain-variable preliminary IF amplifier means, said final and auxiliary IF amplifier means, said video detecting means, said intercarrier sound detector, said first and second untuned coupling means, said video signal-coupling means and said automatic gain control potential development controlling means, being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 35

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof; and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a high-level IF signal output; video-detecting means for recovering video signals from color television IF signals applied thereto; first untuned coupling means for applying said high-level IF signal output of said final IF amplifier means to said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a high-level IF signal output; an intercarrier sound detector; second untuned coupling means for applying said high-level IF signal output of said auxiliary IF amplifier means to said intercarrier sound detector; means for controlling the development of an automatic gain control potential reflecting undesirEd variations in the level of video signals applied thereto; means for coupling said recovered video signals from said video detecting means to said automatic gain control potential development controlling means; and means for rendering the gain of said preliminary IF amplifier means variable in response to said developed automatic gain control potential; said gain-variable preliminary IF amplifier means, said final and auxiliary IF amplifier means, said video detecting means, said intercarrier sound detector, said first and second untuned coupling means, said video signal-coupling means and said automatic gain control potential development controlling means, being realized in integrated form on a common, monolithic integrated circuit chip.

Claim 36

sound signal utilization means coupled to said sixth chip terminal;

Claim 37

sound signal utilization means coupled to said sixth chip terminal;

Claim 38

In a television receiver including tuner apparatus for selecting and converting received television signals to intermediate frequencies, the combination comprising: a preliminary IF amplifier having input and output terminals; a final IF amplifier having input and output terminals a video detector; a first tuned coupling network having a band-pass characteristic and interposed between said tuner apparatus and an input terminal of said preliminary IF amplifier; a second tuned coupling network having a band-pass characteristic and interposed between an output terminal of said preliminary IF amplifier and an input terminal of said final IF amplifier; and an untuned coupling network having a wide-band low-pass characteristic and interposed between an output terminal of said final IF amplifier and said video detector; said preliminary IF amplifier, said final IF amplifier, said video detector, and said untuned coupling network appearing in integrated form on a common, monolithic integrated circuit chip.

Claim 39

In a television receiver including tuner apparatus for selecting and converting received television signals to intermediate frequencies, the combination comprising: a preliminary IF amplifier having input and output terminals; a final IF amplifier having input and output terminals a video detector; a first tuned coupling network having a band-pass characteristic and interposed between said tuner apparatus and an input terminal of said preliminary IF amplifier; a second tuned coupling network having a band-pass characteristic and interposed between an output terminal of said preliminary IF amplifier and an input terminal of said final IF amplifier; and an untuned coupling network having a wide-band low-pass characteristic and interposed between an output terminal of said final IF amplifier and said video detector; said preliminary IF amplifier, said final IF amplifier, said video detector, and said untuned coupling network appearing in integrated form on a common, monolithic integrated circuit chip.

Claim 40

Apparatus in accordance with claim 8 also including: an automatic fine tuning circuit for modifying the operation of said tuner apparatus in response to an IF input signal; and means coupled to an output of said second tuned coupling network for deriving said IF input signal for said automatic fine tuning circuit from the IF signal output of said preliminary IF amplifier.

Claim 41

luminance signal utilization means coupled to said third chip terminal; and

Claim 42

luminance signal utilization means coupled to said third chip terminal; and

Claim 43

modulated color subcarrier utilization means coupled to said third chip terminal.

Claim 44

modulated color subcarrier utilization means coupled to said third chip terminal.

Claim 45

Apparatus in accordance with claim 9 wherein said IF input signal deriving means includes isolating means realized in integrated form on said common, monolithic integrated circuit chip.

Claim 46

In a television receiver including tuner apparatus for selecting and converting received television signals to intermediate frequencies, the combination comprising:

Claim 47

In a television receiver including tuner apparatus for selecting and converting received television signals to intermediate frequencies, the combination comprising:

Claim 48

In a color television receiver including tuner apparatus for selecting and converting to intermediate frequencies received color television signals including a modulated picture carrier and an accompanying modulated sound carrier, said picture carrier being modulated by a luminance signal and a modulated color subcarrier, the combination comprising:

Claim 49

In a color television receiver including tuner apparatus for selecting and converting to intermediate frequencies received color television signals including a modulated picture carrier and an accompanying modulated sound carrier, said picture carrier being modulated by a luminance signal and a modulated color subcarrier, the combination comprising:

Claim 50

Apparatus in accordance with claim 12 also including: automatic fine tuning means for modifying the operation of said tuning apparatus in response to an IF input signal; and means coupled to an output of said third tuned coupling network for deriving said IF input signal for said automatic fine tuning means from the IF signal output of said first amplifier section.

Claim 51

Apparatus in accordance with claim 13 wherein said IF input signal deriving means includes isolating means incorporated in said monolithic integrated circuit chip and coupled between said fourth chip terminal and a seventh of said array of chip terminals.

Claim 52

A monolithic integrated circuit chip for use with a source of television IF signals and an off-chip tuned coupling network, said chip having an array of chip terminals, constituted by a plurality of conductive areas disposed about its periphery, for facilitating connection to off-chip components, said chip comprising the combination of: a first voltage amplifier stage coupled between a first and a second of said array of chip terminals and disposed to develop at said second chip terminal an amplified version of signal voltages appearing at said first chip terminal; a deteCtor having an input electrode and an output electrode; means providing a direct current coupling between the output electrode of said detector and a third of said array of chip terminals; and second and third voltage amplifier stages, direct current coupled in cascade, providing a direct current coupling between a fourth of said array of chip terminals and the input electrode of said detector and disposed to deliver to said detector an amplified version of signal voltages appearing at said fourth chip terminal; whereby coupling of said source to said first chip terminal and interposition of said tuned coupling network between said second and fourth chip terminals permits use of said chip for performing the functions of IF amplification and video detection with stability enhanced by the absence of high level IF signals from the array of chip terminals.

Claim 53

A monolithic integrated circuit chip for use with a source of television IF signals and an off-chip tuned coupling network, said chip having an array of chip terminals, constituted by a plurality of conductive areas disposed about its periphery, for facilitating connection to off-chip components, said chip comprising the combination of: a first voltage amplifier stage coupled between a first and a second of said array of chip terminals and disposed to develop at said second chip terminal an amplified version of signal voltages appearing at said first chip terminal; a deteCtor having an input electrode and an output electrode; means providing a direct current coupling between the output electrode of said detector and a third of said array of chip terminals; and second and third voltage amplifier stages, direct current coupled in cascade, providing a direct current coupling between a fourth of said array of chip terminals and the input electrode of said detector and disposed to deliver to said detector an amplified version of signal voltages appearing at said fourth chip terminal; whereby coupling of said source to said first chip terminal and interposition of said tuned coupling network between said second and fourth chip terminals permits use of said chip for performing the functions of IF amplification and video detection with stability enhanced by the absence of high level IF signals from the array of chip terminals.

Claim 54

In a television receiver including a source of television IF signals, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means having a band-pass characteristic and responsive to the low-level IF signal output of said preliminary IF amplifier means for selectively coupling low-level IF signals from said preliminary IF amplifier means output terminal to a coupling means output terminal; final IF amplifier means having an input terminal coupled to said coupling means output terminal for developing a high-level IF signal output at an output terminal thereof; a video detector; said preliminary IF amplifier means, said final IF amplifier means and said video detector all being realized in integrated form on a common, monolithic integrated circuit chip; and an on-chip direct coupling between said final IF amplifier means output terminal and said video detector for delivering said high level IF signal output to said video detector.

Claim 55

In a television receiver including a source of television IF signals, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means having a band-pass characteristic and responsive to the low-level IF signal output of said preliminary IF amplifier means for selectively coupling low-level IF signals from said preliminary IF amplifier means output terminal to a coupling means output terminal; final IF amplifier means having an input terminal coupled to said coupling means output terminal for developing a high-level IF signal output at an output terminal thereof; a video detector; said preliminary IF amplifier means, said final IF amplifier means and said video detector all being realized in integrated form on a common, monolithic integrated circuit chip; and an on-chip direct coupling between said final IF amplifier means output terminal and said video detector for delivering said high level IF signal output to said video detector.

Claim 56

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a first high-level IF signal output; a video detector; a color image reproducer responsive to the output of said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a second high-level IF signal output; an intercarrier sound detector; said preliminary, final and auxiliary IF amplifier means, said video detector and said intercarrier sound detector all being realized in integrated form on a single, monolithic integrated circuit chip; an on-chip direct coupling between said final IF amplifier means and said video detector for delivering said first high-level IF signal output to said video detector; and an on-chip direct coupling between said auxiliary IF amplifier means and said intercarrier sound detector for delivering said second high-level IF signal output to said intercarrier sound detector.

Claim 57

In a color television receiver including a source of color television IF signals comprising modulated picture and sound carriers, the combination comprising: preliminary IF amplifier means responsive to signals from said source for developing a low-level IF signal output at an output terminal thereof; tuned coupling means, having a band-pass characteristic and responsive to the low-level IF signal output at said preliminary IF amplifier means output terminal, for developing (a) a first low-level IF signal output, having a first picture carrier to sound carrier ratio, at a first output terminal thereof, and (b) a second low-level IF signal output, having a second picture carrier to sound carrier ratio appreciably greater than said first ratio, at a second output terminal thereof; final IF amplifier means having an input terminal coupled to said second output terminal of said tuned coupling means for developing a first high-level IF signal output; a video detector; a color image reproducer responsive to the output of said video detector; auxiliary IF amplifier means having an input terminal coupled to said first output terminal of said tuned coupling means for developing a second high-level IF signal output; an intercarrier sound detector; said preliminary, final and auxiliary IF amplifier means, said video detector and said intercarrier sound detector all being realized in integrated form on a single, monolithic integrated circuit chip; an on-chip direct coupling between said final IF amplifier means and said video detector for delivering said first high-level IF signal output to said video detector; and an on-chip direct coupling between said auxiliary IF amplifier means and said intercarrier sound detector for delivering said second high-level IF signal output to said intercarrier sound detector.