Panasonic AN5170K Datasheet
1
ICs for TV
■ Overview
The AN5170K is a VIF/SIF signal processor IC for
NTSC TVs and VCRs. The SIF part needs no coil and
requires no adjustment. The AFT part needs no coil, and
is adopted quasi-separate sound (QSS) method.
■ Features
•
The SIF part adopts PLL detection, needs no coil, and
requires no adjustment.
•
The AFT part uses APC voltage, eliminating the need
of a coil.
•
QSS technique is employed for better buzz characteristics and audio sensitivity.
•
EQ amplifier is used for video frequency-characteristics
correction.
•
Low power consumption (5.0V, 48mA)
•
The AFT output circuit has its own power supply, V
CC2
(from V
CC1
to 12.5V), to be compatible with various
types of tuners.
AN5170K
VIF/SIF signal processor IC for TV and VCR
6.2±0.3
4.7±0.25
3.05±0.25
1.1±0.25
1.778
0.5±0.1
0.9±0.25
7.62±0.25
3 ∼ 15˚
0.3
+
0.1
– 0.05
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
21.7±0.3
Unit : mm
24-Pin Shrunk DIL-Plastic Package (SDIP024-P-0300)
■ Block Diagram
SIF
INIFAGC
24 23 22
LIM
AMP
SAPC SVCO
12 4
SPLL SDEC AUDIO
AUD
AMP
QDET
OUTIFDET
RFAGC
3
RFAGC
OUT
OUT
V
21
RFAGC
DETINFEED
CC1
20 19 18 17 16 15 14
NI
DET
IFAGC
VIF
AMP
5 6 7 8 9 10 11 12
ADJ
VIFINVIF
BACK
LDET
IN
VIDEO
OUT
EQAMP
QDET
QIF
AMP
QIF
GND REG LDET AFT
IN
V
APC VCO VCO
CC2
VCO
CTRL
APC
QAGC
13
VCO
PST
REG
AFT
OUT
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