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TS4962 データシート(PDF) 9 Page - STMicroelectronics

部品番号 TS4962
部品情報  2.8 W filter-free mono class D audio power amplifier
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
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TS4962 データシート(HTML) 9 Page - STMicroelectronics

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TS4962
Electrical characteristics
Doc ID 10968 Rev 8
9/44
Table 7.
Electrical characteristics at VCC = +4.2 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 = 8 Ω
325
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
1.5
1.95
0.9
1.1
W
THD + N
Total harmonic distortion + noise
Pout = 600 mWRMS, G = 6 dB, 20 Hz < f < 20 kHz
RL = 8 Ω + 15 µH, BW < 30 kHz
Pout = 700 mWRMS, G = 6 dB, f = 1 kHz
RL = 8 Ω + 15 µH, BW < 30 kHz
2
0.35
%
Efficiency
Efficiency
Pout = 1.45 WRMS, RL = 4 Ω +≥ 15 µH
Pout = 0.9 WRMS, RL = 8 Ω+≥ 15 µH
78
88
%
PSRR
Power supply rejection ratio with inputs grounded (3)
f = 217 Hz, RL = 8 Ω, G= 6dB, Vripple = 200 mVpp
63
dB
CMRR
Common mode rejection ratio
f = 217 Hz, RL = 8 Ω, G = 6 dB, ΔVic = 200 mVpp
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
200
280
360
kHz
SNR
Signal to noise ratio (A-weighting)
Pout = 0.8 W, RL = 8 Ω
85
dB
tWU
Wake-up time
5
10
ms
tSTBY
Standby time
5
10
ms
273k
Ω
Rin
-----------------
300k
Ω
R
in
-----------------
327k
Ω
R
in
-----------------


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