LA9242M Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – Analog Signal Processor ASP for CD Players

Ordering number:ENN7097
Monolithic Linear IC
LA9242M
Analog Signal Processor (ASP)
for CD Players
Overview
The LA9242M is an analog signal processing and servo
control bipolar IC designed for use in compact disc players
; a compact disc player can be configured by combining
this IC with a CD-DSP such as the LC78922E and
LC78620E, with a small number of additional components
required. In addition, this IC allows CD-RW disk playback
due to the on-chip gain switching function.
Package Dimensions
unit:mm
3159A-QFP64E
[LA9242M]
17.2
14.0
48
33
49
32
Functions
I/V amplifier, RF amplifier (with AGC), SLC, APC, FE,
TE (with VCA and auto-balance function), focus servo am-
plifier (with offset cancellation function), spindle servo am-
plifier (with gain switching function), sled servo ampli-
fier (with off function), focus detection (DRF, FZD), track
detection (HFL, TES), defect detection, and shock detec-
tion.
64
17
1
16
0.8
0.35
0.15
(1.0)
SANYO : QFP64E
Features
• The following automatic adjustment functions are built
in.
• Focus offset auto cancel : FE (pin 20)
• Tracking offset auto cancel : TE (pin 7).
• EF balance auto adjustment.
• RF level AGC function.
• Tracking servo gain RF level following function.
• Focus search smoothing setting pin : FSC (pin 46)
• EF balance adjustment variable range setting pin : (pin
47)
• Focus search mode switching pin : (pin 55)
• Play disc (Normal, CD-RW) mode switching pin : (pin
38)
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
41902AS (KT) No.7097–1/20