U4479B TEMIC [TEMIC Semiconductors], U4479B Datasheet - Page 2

• Manufacturer Part Number: U4479B
• Description: DVB-Cable IF Converter and Full Multi-Standard Video-/Sound IF Processing
• Manufacturer: TEMIC [TEMIC Semiconductors]

Block Diagram
U4479B
2 (11)
(DVB)
Ref
Tuner
SIF
IF 1
IF 2
V
S
10
14
12
11
28
24
5
6
9
7
1
2
Tuner
AGC
Band
Gap
Preliminary Information
3
25
AFC
AFC
AGC
neg./pos.
SIF
Figure 1. Block diagram
AGC:
QAM
4
FPLL
Loop
filter
19
23
8
VCO
21
22
Control
TELEFUNKEN Semiconductors
95 9816
20
18
13
17
16
15
27
26
2nd IF (DVB)
Rev. A2, 14-Jan-98
CVBS
PLL
I
Standard
switch
select
Frequ.
Input
or
2
AM
FM
C