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參數(shù)資料
| 型號： | TS4961TIQT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 46/49頁 |
| 文件大小： | 1351K |
| 代理商： | TS4961TIQT |
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Electrical characteristics
TS4961T
6/49
2
Electrical characteristics
2.1
Audio amplifier section
Table 7.
Electrical characteristics at VCC = +4.3 V with GND = 0 V, Vicm = 2.1 V and
Tamb = 25° C (unless otherwise specified)
(1)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply current
No input signal, no load
2.1
3
mA
ISTBY
Standby current (2)
No input signal, VSTBY = GND
10
1000
nA
Voo
Output offset voltage
No input signal, RL = 8Ω
325
mV
Pout
Output power, G=6dB
THD = 1% Max, f = 1kHz, RL = 4Ω
THD = 10% Max, f = 1kHz, RL = 4Ω
THD = 1% Max, f = 1kHz, RL = 8Ω
THD = 10% Max, f = 1kHz, RL = 8Ω
1.5
1.95
0.9
1.1
W
THD + N
Total harmonic distortion + noise
Pout = 600 mWRMS, G = 6dB, 20Hz < f < 20kHz
RL = 8Ω + 15H, BW < 30kHz
Pout = 700mWRMS, G = 6dB, f = 1kHz
RL = 8Ω + 15H, BW < 30kHz
2
0.35
%
Efficiency
Pout = 1.45 WRMS, RL = 4Ω +≥ 15H
Pout = 0.9 WRMS, RL = 8Ω+≥ 15H
78
88
%
PSRR
Power supply rejection ratio with inputs grounded (3)
f = 217Hz, RL = 8Ω, G=6dB, Vripple = 200mVpp
63
dB
CMRR
Common mode rejection ratio
f = 217Hz, RL = 8Ω, G = 6dB, ΔVic = 200mVpp
57
dB
Gain
Gain value (Rin in kΩ)V/V
RSTBY
Internal resistance from standby to GND
273
300
327
k
Ω
FPWM
Pulse width modulator base frequency
280
kHz
SNR
Signal to noise ratio (A-weighting)
Pout = 0.8W, RL = 8Ω
85
dB
tWU
Wake-up time
5
10
ms
tSTBY
Standby time
5
10
ms
273k
Ω
R
in
-----------------
300k
Ω
R
in
-----------------
327k
Ω
R
in
-----------------
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