TDA6050-5 Datasheet, PDF (1/10 Pages) Siemens Semiconductor Group – Video IF with FPLL, MAC State

Video IF with FPLL,
MAC State
Features
q Active multistandard video IF
with FPLL demodulator
q 12-MHz bandwidth
q MAC state
Type
TDA 6050-5
Ordering Code
Q67000-A5123
TDA 6050-5
Bipolar IC
P-DIP-20
Package
P-DIP-20
Circuit Description
The IF circuit consists of a four-stage capacitively coupled and symmetrically designed controlled
amplifier and a real synchronous demodulator with a FPLL-carrier regeneration. Two IF inputs can
be selected for applications with different SAWs. The main performance of the device is the very low
differential phase DP and gain DG combined with an excellent intermodulation ratio. The positive
video output is used to derive the IF and tuner control voltage. The AGC threshold is set by means
of a potentiometer. Dependent on the modulation polarity the video signal and the AGC are
switched over. MAC state can be selected by an additional signal.
Application
Multistandard TV/VTR and cable converters with mono or stereo applications.
Semiconductor Group
63
06.94