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TS4962M 数据表(PDF) 4 Page - STMicroelectronics

部件名 TS4962M
功能描述  3W Filter - free Class D Audio Power Amplifier
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4962M 数据表(HTML) 4 Page - STMicroelectronics

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Electrical Characteristics
TS4962M
4/32
3
Electrical Characteristics
Table 4.
VCC = +5V, GND = 0V, VIC =2.5V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
ICC
Supply Current
No input signal, no load
2.3
3.3
mA
ISTBY
Standby Current (1)
1.
Standby mode is active when VSTBY is tied to GND.
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
2.3
3
1.4
1.75
W
THD + N
Total Harmonic
Distortion + Noise
Pout = 900mWRMS, G = 6dB, 20Hz < F < 20kHz
RL =8Ω + 15µH, BW < 30kHz
Pout =1WRMS, G = 6dB, F = 1kHz,
RL =8Ω + 15µH, BW < 30kHz
1
0.4
%
Efficiency Efficiency
Pout =2WRMS, RL =4Ω + ≥ 15µH
Pout =1.2WRMS, RL =8Ω+ ≥ 15µH
78
88
%
PSRR
Power Supply
Rejection Ratio with
Inputs Grounded (2)
2.
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the superimposed sinusoidal signal to VCC @ F = 217Hz.
F = 217Hz, RL =8Ω, G=6dB,
Vripple = 200mVpp
63
dB
CMRR
Common Mode
Rejection Ratio
F = 217Hz, RL =8Ω, G=6dB,
∆Vicm =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
180
250
320
kHz
SNR
Signal to Noise Ratio
A Weighting, Pout = 1.2W, RL =8Ω
85
dB
tWU
Wake-up Time
5
10
ms
tSTBY
Standby Time
5
10
ms
VN
Output Voltage Noise
F = 20Hz to 20kHz, G = 6dB
Unweighted RL =4Ω
A weighted RL =4Ω
85
60
µVRMS
Unweighted RL =8Ω
A weighted RL =8Ω
86
62
Unweighted RL =4Ω + 15µH
A weighted RL =4Ω + 15µH
83
60
Unweighted RL =4Ω + 30µH
A weighted RL =4Ω + 30µH
88
64
Unweighted RL =8Ω + 30µH
A weighted RL =8Ω + 30µH
78
57
Unweighted RL =4Ω + Filter
A weighted RL =4Ω + Filter
87
65
Unweighted RL =4Ω + Filter
A weighted RL =4Ω + Filter
82
59
273k
Ω
R
in
------------------
300k
Ω
R
in
------------------
327k
Ω
R
in
------------------



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