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參數(shù)資料
| 型號： | TA2131FNG |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.008 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | 0.300 INCH, 0.65 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 19/19頁 |
| 文件大?。?/td> | 411K |
| 代理商： | TA2131FNG |
TA2131FNG
2006-04-19
9
3.
Beep
Beep sound signals from microcomputer can be received by the beep input terminal (19-pin).
The PWA and PWB of the power amplifier during power mute are turned OFF, and the beep signal input
from BEEP-IN (19-pin) is output from the BEEP-OUT terminal (10/11-pin) as fixed current, after passing
through the converter and current amplification stage. Connecting this terminal to the headphone load
outputs the beep sound.
If the beep sound is not input, fix the BEEP-IN (19-pin) terminal to GND level.
VCC
PW SW
(18-pin)
MT SW
(17-pin)
BEEP IN
(15-pin)
OFF
ON
OFF
100 ms
200 ms
20
15
24
23
IBEEP
ID
60
10
0
20
40
30
100
300
1 k
3 k
10 k
30 k
100 k
VCC1 = 2.8 V
VCC2 = 1.2 V
Rg = 620
RL = 16
Vo = 22dBV
WIDE BAND
Output C
= 220 F
C
= 0.47 F
C
= 2.2 F
C
= 1 F
Vref short
f
(Hz)
CT
(d
B
)
Figure 6
Low-Pass Compensation Condenser and Crosstalk
CT – f
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