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參數(shù)資料
| 型號： | 935089700112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 8 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM9 |
| 封裝： | POWER, PLASTIC, SOT-110-1, SIP-9 |
| 文件頁數(shù)： | 16/17頁 |
| 文件大?。?/td> | 159K |
| 代理商： | 935089700112 |
July 1994
8
Philips Semiconductors
Product specication
2 x 6 W hi- audio power amplier
TDA1521A
APPLICATION INFORMATION
Input mute circuit
The input mute circuit operates only during switching on and off of the supply voltage. The circuit compares the 1
2 supply
voltage (at pin 3) with an internally fixed reference voltage (Vref), derived directly from the supply voltage. When the
voltage at pin 3 is lower than Vref the non-inverting inputs (pins 1 and 9) are disconnected from the amplifier. The voltage
at pin 3 is determined by an internal voltage divider and the external 100
F capacitor.
During switching on, a time delay is created between the reference voltage and the voltage at pin 3, during which the
input terminal is disconnected, (as illustrated in Fig.3).
Fig.3 Input mute circuit; time delay.
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| 9350DC-200-0GZZZA | 制造商:Siemens 功能描述: |
| 9350DC-200-0ZZZTA | 制造商:Siemens 功能描述: |
| 9350DC-200-0ZZZZA | 制造商:Siemens 功能描述: |
| 9350-DISPLAY | 制造商:Siemens 功能描述: |
| 9350SC-100-0GZZZA | 制造商:Siemens 功能描述: |
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