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参数资料
| 型号： | TS4984IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| 封装： | 4 X 4 MM, 0.50 MM PITCH, LEAD FREE, TQFN-16 |
| 文件页数： | 25/29页 |
| 文件大小： | 901K |
| 代理商： | TS4984IQT |
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Electrical characteristics
TS4984
5/29
Table 5: Electrical characteristics for VCC = +3.3V, GND = 0V, Tamb = 25°C (unless otherwise
specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply Current
No input signal, no load
6.6
12
mA
ISTANDBY
Standby Current 1
No input signal, Vstdby = GND, RL = 8
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
110
mV
Pout
Output Power
THD = 1% Max, F = 1kHz, RL = 8
300
450
mW
THD + N
Total Harmonic Distortion + Noise
Po = 400mWrms, Av = 2, 20Hz
≤ F ≤ 20kHz, RL = 8
0.1
%
PSRR
Power Supply Rejection Ratio2
RL = 8
, Av = 2, Vripple = 200mVpp, Input Grounded
F = 217Hz
F = 1kHz
55
61
63
dB
Crosstalk
Channel Separation, RL = 8
F = 1kHz
F = 20Hz to 20kHz
-94
-68
dB
TWU
Wake-Up Time (Cb = 1F)
110
140
ms
TSTDB
Standby Time (Cb = 1F)
10
s
VSTDBH
Standby Voltage Level High
1.2
V
VSTDBL
Standby Voltage Level Low
0.4
V
ΦM
Phase Margin at Unity Gain
RL = 8, CL = 500pF
65
Degrees
GM
Gain Margin
RL = 8, CL = 500pF
15
dB
GBP
Gain Bandwidth Product
RL = 8
1.5
MHz
1)
Standby mode is activated when Vstdby is tied to Gnd
2)
All PSRR data limits are guaranteed by production sampling tests
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon Vcc.
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