PANASONIC AN5170K

ICs for TV
AN5170K
VIF/SIF signal processor IC for TV and VCR
■ Overview
• 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, VCC2
(from VCC1 to 12.5V), to be compatible with various
types of tuners.
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
1.778
21.7±0.3
■ Features
0.5±0.1
0.9±0.25
Unit : mm
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.
1.1±0.25
6.2±0.3
3.05±0.25
4.7±0.25
+ 0.1
0.3 – 0.05
7.62±0.25
3 ∼ 15˚
24-Pin Shrunk DIL-Plastic Package (SDIP024-P-0300)
■ Block Diagram
SIF
IN
IF
AGC
QDET
OUT
IF
DET
VCC1
DET
IN
FEED
BACK
VIDEO
OUT
VCC2
APC
VCO
VCO
24
23
22
21
20
19
18
17
16
15
14
13
NI
EQAMP
VCO
CTRL
LIM
AMP
VCO
LDET
APC
PST
DET
SAPC
IFAGC
SVCO
REG
QDET
AUD
AMP
1
1
2
SPLL
SDEC
3
4
QAGC
VIF
AMP
RFAGC
5
AUDIO RFAGC RFAGC
OUT
OUT
ADJ
QIF
AMP
AFT
6
7
8
9
10
11
12
VIF
IN
VIF
IN
GND
QIF
IN
REG
LDET
AFT
OUT