ICs for Compact Disc/ CD-ROM Player
s
Usage Notes
AN8488SB
1. Use the V
CC2
at V
CC2
≥
V
M2
. And use power supply always at on state. Otherwise it will cause malfunction.
2. On driver gain setting of driver block.
Voltage gain of power amplifier: 23 dB
10 kΩ
10 kΩ
11
Input
Input pin
500
Ω
5.5 kΩ
V
REF
3. On operation mode of mute:
PC
H
Driver output
4. On SS pin mode:
SS
H
Spindle block
Driver block
On
On
M
Off
On
L (Open)
Off
Off
Active
L (Open)
Mute
×
7
4
M Load
7
×
7
Power amp. Output pin
V
REF
5. On brake mode of spindle block:
BRK
H
EC
<
ECR
EC
>
ECR
Acceleration
Reverse rotation brake
L (Open)
Acceleration
Short brake
6. Take time to check the characteristics on use.
When changing an external circuit constant for use, consider not only static characteristics, but also transient charac-
teristics and external parts with respect to the characteristics difference among ICs so that you can get enough margin.
7. Avoid short-circuit between output pin and power supply, output pin and GND (line-to-supply and line-to-ground
fault) and output pins (load short-circuit). Otherwise the IC will be damaged and is likely to get fired.
8. Be cautious on a dip soldering. Prior study is required.
5
PANASONIC [ PANASONIC SEMICONDUCTOR ]
