|
|
PDF LA9220M Data sheet ( Hoja de datos )
| Número de pieza | LA9220M | |
| Descripción | Monolithic Linear IC | |
| Fabricantes | Sanyo | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LA9220M (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
Ordering number:ENN5188
Monolithic Linear IC
LA9220M
Analog Signal Processor Circuit (ASP)
for CD Players
Overview
The LA9220M 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, a CD-DSP such as the LC78681KE, and a small
number of additional components.
Functions
I/V amplifier, RF amplifier (with AGC), SLC, APC, VCOC
amplifier, VCO (supports double-speed playback), FE, TE
(with VCA and auto-balance function), tracking servo am-
plifier (with offset cancellation function), spindle servo
amplifier (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.
Features
The following automatic adjustment functions are built in.
• Focus offset auto cancel.
• Tracking offset auto cancel.
• EF balance auto adjustment.
• RF level AGC function.
• Tracking servo gain RF level following function.
Package Dimensions
unit:mm
3159-QIP64E
[LA9220M]
17.2
14.0 1.6
1.0 0.8
48
0.35 1.0
33
49 32
0.15
64
1
17
16
0.1
2.7
15.6 0.8
SANYO : QIP64E
Specifications
Maximum Ratings at Ta = 25˚C, Pins 22, 45=GND
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
Vsup max
Pd max
Topr
Tstg
Pin 56, 64
Conditions
Ratings
7
350
–25 to +75
–40 to +125
Unit
V
mW
˚C
˚C
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
30801TN (KT)/92595HA(II) No.5188–1/20
1 page  
LA9220M
Continued from preceding page.
Pin No.
54
55
56
57
58
59
60
61
62
63
64
Symbol
DRF
LF
VCC2
REF1
VR
LF2
PH1
BH1
LDD
LDS
VCC1
Contents
RF level detection output (Detect RF).
VCO free-running adjustment pin.
Servo system and digital system VCC pin.
Bypass capacitor connection pin for reference voltage.
Reference voltage output pin.
Disc detect detection time constant setting pin.
RF signal peak hold capacitor connection pin.
RF signal bottom hold capacitor connection pin.
APC circuit output pin.
APC circuit input pin.
RF system VCC pin.
Block Diagram
No.5188–5/20
5 Page 
LA9220M
Notes Concerning Microprocessor Program Creation (Supplementary)
1. Commands.
After sending the FOCUS START command and the E/F BALANCE START command, send 11111110 (FEH) in
order to clear the internal registers of the IC.
MSB LSB
Reason : Although the above commands are executed at point ¡ in the timing chart below, the same commands will
be executed again at point ™ if there is subsequent input to CE as shown below.
Timing chart
2. When sending the TRACK-OFFSET ADJUST START command or the FOCUS-OFFSET ADJUST START
command after either the VCC ON (POWER ON RESET), RESET command or a corresponding OFFSET ADJUST
OFF command, waiting time is necessary as listed below, (Only when a 4.2MHz clock is input.)
TRACK-OFFSET ADJUST START : 4ms or more
FOCUS-OFFSET ADJUST START : 30ms or more
3. E/F balance adjustment
E/F balance adjustments should be made in a bit region of the disc , not a mirrored region.
(This is because the E/F balance adjustment entails about 100 to 200 track kicks.)
Pattern Design Notes
To prevent signal jump-in from CV+ (pin 40) to RFSM (pin 41), a shielding line is necessary in between.
No.5188–11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet LA9220M.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LA9220M | Monolithic Linear IC | Sanyo |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |