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參數資料
| 型號： | UA9392 |
| 廠商： | 友順科技股份有限公司 |
| 英文描述： | 4-CHANNEL BTL DRIVE FOR CD PLAYERS |
| 中文描述： | 4通道橋接驅動CD播放機 |
| 文件頁數： | 6/11頁 |
| 文件大?。?/td> | 141K |
| 代理商： | UA9392 |
UTC UA9392 LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
6
QW-R109-010,A
Output Vref
0V
OUT F(R)
OUT R(F)
Fig. 3
The level shift circuit converts the pre-stage amplifier output (centered on the bias level and impressed on pins
23 and 25) to positive and negative amplitudes centered on V
REF.
The level shift circuit
'
s output is BTL-output from
the buffer amplifier.
Because of the high input impedance, the IC is designed to accommodate filter comprising attached resistors
and capacitors.
(Example) For secondary filters
Servo output
100K
190K
2.5V
Fig. 4
OPERATION NOTES
(1) The UTC UA9392 has an internal thermal shutdown circuit. Output current is muted when the chip temperature
exceeds 180
℃
(typically).
(2) The output current can also be muted by lower the mute pin (pin 15) voltage below 0.5V.
(3) All four driver output channels are muted during thermal shutdown, muting and a drop in bias pin voltage. No
other components are muted.
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