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