UTC TA7611AP LINEAR INTEGRATED CIRCUIT
FM IF/AM TUNER SYSTEM
DESCRIPTION
The UTC TA7611AP is a monolithic integrated circuit,
designed for the VIF stage in color and B/W TV receiver. The
UTC TA7611AP is used for Forward AGC type.
FEATURES
*High gain wide brand IF amplifier
*Gain reduction with excellent stability
*Excellent DG/DP and S/N characteristics
*Negative video output signal
*Fast AGC action due to noise inverter and peak AGC
*Switch off the video part VTR SW
FUNCTIONS
*Three controlled IF amplifier stages
*Video demodulator controlled by picture carrier
*Black noise and white noise inverter
*Peak AGC
*DC amplifier for RF AGC output
*Quadrature detector for AFT
*DC amplifier for AFT
DIP-16
BLOCK DIAGRAM
NC
NC
NC
NC
Vcc
5
IF INPUT
6
7
10
11
15
16
IF 1
IF 2
IF 3
9
8
VIDEO AMP.
VIDEO
TANK
1
2
AGC2
12
RF AGC
OUTPUT
4
AGC3
AGC1
NOISE
INVERTER
VIDEO
13
OUTPUT
3
RF AGC
RELAY
14
IF AGC FILTER
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R111-004,A
UTC TA7611AP LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Supply Voltage
Open Loop Voltage
Video DC Output Current
Power Dissipation
Operating Temperature
Storage Temperature
SYMBOL
VCC
V4
I12
PD
TOPR
TSTG
VALUE
15
15
6
1.4
-20 ~ +65
-55 ~ +150
UNIT
V
V
MA
W
°C
°C
ELECTRICAL CHARACTERISTICS
(Ta=25°C, Vcc=12V, fo=45.75MHz, unless otherwise specified)
PARAMETER
Recommended Supply Voltage
Quiescent Circuit Current
Video DC Output
AFT DC Output Voltage
AFT Output Offset Voltage
RF AGC Residual Output
Voltage
RF AGC Leak Current
Video Sensitivity
AGC Range
Sync Tip Level Voltage (pin12)
Maximum IF Input Voltage
White Noise Threshold (pin12)
White Noise Clamp Level (pin12)
Black Noise Threshold (pin12)
Black Noise Clamp Level (pin12)
Video Frequency Response
Suppression of Carrier
Suppression of 2
nd
Carrier
920KHz Beat Level
Differential Gain
Differential Phase
Input Impedance
AFT Output Upper Voltage
AFT Output Lower Voltage
Maximum Available Current
AFT Sensitivity
SYMBOL
VCC
ICCQ
V12
V5-V6
V5-V6
V4(SAT)
I4(LEAK)
S
VI
VAGC
(IF)
VSYNC
VI
(MAX)
V
WTH
V
WCL
V
BTH
V
BCL
GV(IF)
CL
I2ND
I920
DG
DP
RIN
CIN
V5,V6(UP)
V5,V6(LOW)
I4(MAX)
S
AFT
TEST CONDITIONS
MIN. TYP. MAX.
10.8
42
5.2
12
51
5.5
6.8
0
13.2
63
5.8
8.3
1.5
0.5
1
100
60
2.3
100
5.8
3.7
1.4
2.9
200
64
2.5
120
6.2
4.1
1.6
3.3
5.5
50
50
38
7
3.5
10
5
6
5
12
2.8
6.6
4.5
1.8
3.7
2.7
300
UNIT
V
mA
V
V
V
V
µA
µVrms
dB
V
mVrms
V
V
V
V
MHz
dB
dB
dB
dB
Degree
K
pF
V
V
mA
KHz/V
SW1: on,SW2: on
SW1: on,SW2: on
SW4:1
VCC=12V,SW3:1,SW4:1
V12=0.8VP-P
f0=45.75MHZ,AM=30%
VCC=12V,f0=45.75MHZ
V14=11.5V→4.0V
5.3
-1.5
Input 45.75MHz, Sweep
Generator
SG1=100mVrms
SG2, SG3->OFF
SG1=100Mvrms
SG2, SG3->OFF
SG1=100mVrms
SG2=SG3=32mVrms
4.5
40
40
33
fo=45.75MHz, Between pin16~1
3.0
11.7
1.8
7
4. 5
2
11.9
2.3
16
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R111-004,A
UTC TA7611AP LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT 1
5.1kΩ
3.3kΩ
820k
Ω
1
0.01
µF
SW4
2
3.9kΩ
1.6kΩ
47
µF
Vcc=12V
A
0.01
µF
0.01
µF
SW1
+15V
0.01
µF
0.01
µF
16
0.01
µF
15
14
13
12
11
10
9
UTC TA7611AP
1
2
3
4
5
6
7
8
0.01
µF
0.01
µF
0.01
µF
0.01
µF
A
1.6kΩ
SW3
2
1
TEST CIRCUIT 2
VAGC
VIDEO
OUTPUT
Vcc=12V
1:1
0.22
µF
IF INPUT
0.01
µF
2
1
S1
1.6kΩ
47
µF
820kΩ
0.01
µF
1000pF
0.01
µF
16
15
14
13
12
11
10
9
3.9kΩ
75pF
UTC TA7611AP
1
2
3
4
5
6
7
8
1kΩ
5kΩ
1kΩ
1.6kΩ
SW2
1
2
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R111-004,A
UTC TA7611AP LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT 3
TEST CIRCUIT 4
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R111-004,A
UTC TA7611AP LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R111-004,A
