UTC PC1366 LINEAR INTEGRATED CIRCUIT
B/W TV VIF PROCESSING CIRCUIT
DESCRIPTION
UTC PC1366 is designed for B/W TV VIF processing
purpose. It includes VIF amplifier錛寁ideo low level detector RF
AGC, IF AGC and noise reduction circuit.
FEATURES
*High input sensitivity Typ.30dB碌.
*Key and peak controllable AGC.
*Operating voltage down to 7V.
*Wide video bandwidth suitable for modulation IF of 4.5,
5.5,6.0,6.5 MHZ.
*Differential input implied with easy used with SAW
*Low external part count.
DIP-14H
BLOCK DIAGRAM
Rf?AGC
voltage
regulator
AGC
Key
time
control
pulse input
constant
4
2
RF?AGC
to tuner
6
IF power
Vcc
7
5
12
RF
AGC
IF
AGC
Noise
reduction
Video
output
3 Video
output
IF amplifier
Low level
detector
8
9
10
Cap
11
1
14
13
GND
saw filter
Video IF
input
Detector
coil
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R111-003,A