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TS4962 数据表(PDF) 5 Page - STMicroelectronics

部件名 TS4962
功能描述  3W Filter-free Class D Audio Power Amplifier
PDF  22 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4962 数据表(HTML) 5 Page - STMicroelectronics

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Electrical Characteristics
TS4962
5/22
Table 4.
VCC = +4.2V, GND = 0V, VICM = 2.1V, 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
ISTANDBY
Standby Current 2
No input signal, VSTBY = GND
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8Ω
325
mV
Po
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
1.6
2
0.95
1.2
W
THD + N
Total Harmonic Distortion + Noise
Po = 600 mWRMS, G = 6dB, 20Hz < f < 20kHz,
RL = 8Ω + 15µH, BW < 30kHz
Po = 700mWRMS, G = 6dB, f = 1kHz,
RL = 8Ω + 15µH, BW < 30kHz
1
0.35
%
Efficiency
Efficiency
Po = 1.45 WRMS, RL = 4Ω + ≥ 15µH
Po = 0.9 WRMS, RL = 8Ω+ ≥ 15µH
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, ∆Vic = 200mVpp
57
dB
Gain
Gain value (Rin in kΩ)
V/V
RSTDBY
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), Po = 0.9W, RL = 8Ω
85
dB
TWU
Wake-up time
510ms
TSTB
Standby time
510ms
VN
Output Voltage Noise f = 20Hz to 20kHz, G = 6dB
Unweighted RL = 4Ω
A weighted RL = 4Ω
Unweighted RL = 8Ω
A weighted RL = 8Ω
Unweighted RL = 4Ω + 15µH
A weighted RL = 4Ω + 15µH
Unweighted RL = 4Ω + 30µH
A weighted RL = 4Ω + 30µH
Unweighted RL = 8Ω + 30µH
A weighted RL = 8Ω + 30µH
Unweighted RL = 4Ω + Filter
A weighted RL = 4Ω + Filter
Unweighted RL = 4Ω + Filter
A weighted RL = 4Ω + Filter
85
60
86
62
83
60
88
64
78
57
87
65
82
59
90
66
µVRMS
1)
All electrical values are guaranted with correlation measurements at 2.5V and 5V.
2)
Standby mode is actived when Vstdby is tied to GND.
3)
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz.
273k
Ω
R
in
------------------
300 k
Ω
R
in
------------------
327k
Ω
R
in
------------------



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