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TS4962 数据表(PDF) 13 Page - STMicroelectronics

部件名 TS4962
功能描述  2.8 W filter-free mono class D audio power amplifier
PDF  44 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) 13 Page - STMicroelectronics

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DocID10968 Rev 9
13/44
TS4962
Electrical characteristics
44
Table 9. Electrical characteristics at VCC = +3.0 V
with GND = 0 V, Vicm = 1.5 V, Tamb = 25°C (unless otherwise specified)
(1)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply current
No input signal, no load
1.9
2.7
mA
ISTBY
Standby current (2)
No input signal, VSTBY = GND
10
1000
nA
Voo
Output offset voltage
No input signal, RL = 8 Ω
3
25
mV
Pout
Output power, G = 6 dB
THD = 1% max, f = 1 kHz, RL = 4 Ω
THD = 10% max, f = 1 kHz, RL = 4 Ω
THD = 1% max, f = 1 kHz, RL = 8 Ω
THD = 10% max, f = 1 kHz, RL = 8 Ω
0.7
1
0.5
0.6
W
THD + N
Total harmonic distortion + noise
Pout = 300 mWRMS, G = 6 dB, 20 Hz < f < 20 kHz
RL = 8 Ω + 15 µH, BW < 30 kHz
Pout = 350 mWRMS, G = 6 dB, f = 1 kHz
RL = 8 W + 15 µH, BW < 30 kHz
2
0.1
%
Efficiency
Efficiency
Pout = 0.7 WRMS, RL = 4 Ω + ≥ 15 µH
Pout = 0.45 WRMS, RL = 8 Ω + ³ 15 µH
78
88
%
PSRR
Power supply rejection ratio with inputs grounded (3)
f = 217 Hz, RL = 8 Ω, G = 6 dB, Vripple = 200 mVpp
60
dB
CMRR
Common mode rejection ratio
f = 217 Hz, RL = 8 Ω, G = 6 dB, ∆Vic = 200 mVpp
54
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
200
280
360
kHz
SNR
Signal to noise ratio (A-weighting)
Pout = 0.4 W, RL = 8 Ω
82
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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