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参数资料
| 型号： | TA8201AK |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 17 W, 1 CHANNEL, AUDIO AMPLIFIER, PSFM7 |
| 封装： | HSIP-7 |
| 文件页数： | 2/9页 |
| 文件大小： | 719K |
| 代理商： | TA8201AK |
TA8201AK
2002-10-30
2
Block Diagram
Directions For Use And Application Method
1. Voltage gain adjustment
This IC has the amplifier construction as shown in Fig.1. The pre-amp. Amp 1 is provided to the primary stage,
and the input voltage is amplified by the flat amps, amp 3 and amp 4 of each channel through the phase amp.
Amp 2.
Since the input offset is prevented by pre-amp when VCC is set to on, this circuit can remarkable reduce the pop
noise.
The total closed loop gain GV of this IC can be obtained by expression below when the closed loop voltage gain of
amp 1 is GV1.
(dB)
R2
f
R
R2)
f
(R
R1
og
20
V1
G
+
=l
..... (1)
The closed loop voltage gain of power amp, amp 3 and amp 4 is fixed at GV3≒GV4 = 20dB.
Therefore, the total closed circuit voltage gain GV is obtained through BTL connection by the expression below.
GV = GV1+GV3+6 (dB) .............
(2)
＋
－
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| TA8204 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:LOW FREQUENCY POWER AMPLIFIER |
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