AN5170K Datasheet, PDF (1/1 Pages) Panasonic Semiconductor – VIF/SIF signal processor IC for TV and VCR

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