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| TS4962_10 Datasheet, PDF (13/44 Pages) STMicroelectronics – 2.8 W filter-free mono class D audio power amplifier | |||
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TS4962
Electrical characteristics
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
ICC
ISTBY
Voo
Pout
Supply current
No input signal, no load
Standby current (2)
No input signal, VSTBY = GND
Output offset voltage
No input signal, RL = 8 Ω
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
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 Ω + 15 µH, BW < 30 kHz
Efficiency
Efficiency Pout = 0.7 WRMS, RL = 4 Ω +⥠15 µH
Pout = 0.45 WRMS, RL = 8 Ω+⥠15 µH
Power supply rejection ratio with inputs grounded (3)
PSRR
f = 217 Hz, RL = 8 Ω, G = 6 dB, Vripple = 200 mVpp
Common mode rejection ratio
CMRR
f = 217 Hz, RL = 8 Ω, G = 6 dB, ÎVic = 200 mVpp
Gain Gain value (Rin in kΩ)
RSTBY
FPWM
SNR
tWU
tSTBY
Internal resistance from standby to GND
Pulse width modulator base frequency
Signal to noise ratio (A-weighting)
Pout = 0.4 W, RL = 8 Ω
Wake-up time
Standby time
Min. Typ. Max.
1.9 2.7
10 1000
3
25
0.7
1
0.5
0.6
2
0.1
78
88
60
54
-2---7---3----k---Ω---
Rin
3----0---0----k---Ω---
Rin
3----2---7----k---Ω---
Rin
273 300 327
200 280 360
82
5
10
5
10
Unit
mA
nA
mV
W
%
%
dB
dB
V/V
kΩ
kHz
dB
ms
ms
Doc ID 10968 Rev 8
13/44
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