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| TS4962_10 Datasheet, PDF (9/44 Pages) STMicroelectronics – 2.8 W filter-free mono class D audio power amplifier | |||
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TS4962
Electrical characteristics
Table 7.
Symbol
Electrical characteristics at VCC = +4.2 V with GND = 0 V, Vicm = 2.1 V and
Tamb = 25°C (unless otherwise specified)(1)
Parameter
Min. Typ. Max. Unit
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
2.1
3
mA
10 1000 nA
3
25
mV
1.5
1.95
W
0.9
1.1
Total harmonic distortion + noise
Pout = 600 mWRMS, G = 6 dB, 20 Hz < f < 20 kHz
THD + N RL = 8 Ω + 15 µH, BW < 30 kHz
2
%
Pout = 700 mWRMS, G = 6 dB, f = 1 kHz
RL = 8 Ω + 15 µH, BW < 30 kHz
0.35
Efficiency
Efficiency
Pout = 1.45 WRMS, RL = 4 Ω +⥠15 µH
Pout = 0.9 WRMS, RL = 8 Ω+⥠15 µH
78
%
88
Power supply rejection ratio with inputs grounded (3)
PSRR
dB
f = 217 Hz, RL = 8 Ω, G = 6 dB, Vripple = 200 mVpp
63
Common mode rejection ratio
CMRR
57
dB
f = 217 Hz, RL = 8 Ω, G = 6 dB, ÎVic = 200 mVpp
Gain Gain value (Rin in kΩ)
2----7---3----k---Ω---
Rin
-3---0---0----k---Ω---
Rin
-3---2---7----k---Ω---
Rin
V/V
RSTBY
FPWM
SNR
tWU
tSTBY
Internal resistance from standby to GND
Pulse width modulator base frequency
Signal to noise ratio (A-weighting)
Pout = 0.8 W, RL = 8 Ω
Wake-up time
Standby time
273 300 327
kΩ
200 280 360 kHz
85
dB
5
10
ms
5
10
ms
Doc ID 10968 Rev 8
9/44
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