NTE1779
Integrated Circuit
TV VIF Amp, Phase Lock Loop (PLL)
Description:
The NTE1779 is an integrated circuit in a 22–Lead DIP type package designed for color TV video IF
signal processing circuits.
Features:
D High Density One–Chip Integration of Video IF Amplifier, PLL Detector, Video Pre–Amplifier,
AGC and AFC Circuits
D PLL True Synchronous Detector Incorporates VCO
D Wide Pull–In Range by Time–Constant Auto–Changer of PLL Loop–Filter
D Selective Transformerless AFC Circuit
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Circuit Voltage
V1–8,16/V9–8,16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V
V2–8,16/V9–8,16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V
V3–8,16/V9–8,16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V
V11–8,16/V9–8,16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V
19–8,16/V9–8,16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V
Circuit Voltage
I10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10/0.5mA
V
I12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10/1mA
I17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –2/5mA
Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Electrical Characteristics: (VCC = 12V, TA = +25°C unless otherwise specified)
Parameter
IF Amplifier Detector
Video Detector Output
Symbol
Test Conditions
Min Typ Max
Unit
V
O
f = 58.75MHz, V = 80dBµ, m = 87.5%
1.8 2.05 2.3
2.1 2.6 3.1
V
V
i
P–P
f = 58.75MHz, V = 80dBµ, m = 110%
i
P–P
Input Sensitivity
S
V = –3dB
51
55
60
–
dBµ
dBµ
%
(IN)
O
Maximum Allowable Input
Differential Gain
V
I9max)
101 104
DG
f = 58.75MHz, V = 80dBµ, m = 87.5%
–
–
–
–
2
5
2
5
6
i
f = 58.75MHz, V = 80dBµ, m = 110%
13
5
%
i
Differential Phase
DP
f = 58.75MHz, V = 80dBµ, m = 87.5%
deg
deg
dBµ
i
f = 58.75MHz, V = 80dBµ, m = 110%
12
i
Output Voltage (SIF)
V
P/S = 20dB
98 101 104
O