1551

NTE1551
Integrated Circuit
TV Video IF Amp
Features:
D High density one chip integration of vide IF amplifier, video detector, video preamplifier, AGC
and AFC circuits. With this IC, compact set designing is possible.
D High performance by built−in phase compensation type synchronous detector circuit.
D As AFC using double balanced phase comparator, the influence to video detection is little.
D Forward RF AGC and reverse RF AGC output pins are attached
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.8V
Circuit Voltage. V3−Fin, V5−Fin, V6−Fin, V7−Fin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V11−Fin to 0V
Circuit Current, I12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 to −10mA
Circuit Current, I4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to −10mA
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW
Operating Temperature Range, Topt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C
Note *. “+” and “−” are flow−in and flow−out currents to/from the circuit.
Electrical Characteristics: (TA = +25°C, unless otherwise specified)
Parameter
Min
Typ Max
Unit
1.7
2.0
2.3
Vp−p
−
46
−
dBµ
VI
−
110
−
dBµ
Differential Gain
DG
0
4
−
%
Differential Phase
DP
0
5
5
degrees
Detector Output (Video)
Input Sensitivity
Input Voltage (Max.)
Symbol
VO
S(IN)
Test Conditions
Mod. = 87.5%
VO = −3dB
Frequency Characteristics
fc
VO = −3dB
6.5
9
15
MHz
Output Voltage (SIF)
VO
P/S = 20dB
120
160
200
mVrms
Input Resistance, Pin 1
Ri
f = 58.75MHz
0.7
1.0
1.3
kΩ
Input Capacitance, Pin 1
Ci
Voltage Gain (RF AGC)
GV(F)
RL = 3.9kΩ
24
30
36
dB
GV(R)
RL = 10kΩ
27
33
39
dB
V6
VCC = 12V
5.0
6.5
7.1
V
RL = 68kΩ/82kΩ, Rs = 18kΩ
0.5
1.5
2.5
V
AFC Center Voltage
AFC Defeat−SW Operating Voltage
V(AFC)
Phase Detector Sensitivity
µ
RL = 68kΩ/82kΩ
60
100
130
mV/kHz
Circuit Current
I11
VCC = 12V
39
56
71
mA
Pin Connection Diagram
Tab
IF Input
1
16 IF Input
IF Feedback
2
15 IF Feedback
RF AGC Delay
3
14 IF AGC
AGC (Fwd)
4
13 IF AGC
AGC (Rev)
5
12 Video Amp Output
AFC Output
6
11 VCC
AGC Detector Network
7
10 AFC Detector
Carrier Amp
8
9
Network
Carrier Amp
1.102 (28.0) Max
17
8
1
.256 (6.5)
9
16
.300
(7.62)
.866 (22.0) Max
.200
(5.08)
.200 (5.08)
.100 (2.54)
.122 (3.0)