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| TS4962_10 Datasheet, PDF (7/44 Pages) STMicroelectronics – 2.8 W filter-free mono class D audio power amplifier | |||
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TS4962
3
Electrical characteristics
Electrical characteristics
Table 6.
Electrical characteristics at VCC = +5 V,
with GND = 0 V, Vicm = 2.5 V, and Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min. Typ. Max.
ICC
ISTBY
Voo
Pout
Supply current
No input signal, no load
Standby current (1)
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
2.3 3.3
10 1000
3
25
2.2
2.8
1.4
1.7
THD + N
Total harmonic distortion + noise
Pout = 850 mWRMS, G = 6 dB, 20 Hz < f < 20 kHz
RL = 8 Ω + 15 µH, BW < 30 kHz
Pout = 1 WRMS, G = 6 dB, f = 1 kHz
RL = 8 Ω + 15 µH, BW < 30 kHz
Efficiency
Efficiency
Pout = 2 WRMS, RL = 4 Ω +⥠15 µH
Pout = 1.2 WRMS, RL = 8 Ω+⥠15 µH
Power supply rejection ratio with inputs grounded (2)
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)
2----7---3----k---Ω---
Rin
RSTBY Internal resistance from standby to GND
273
FPWM Pulse width modulator base frequency
200
SNR
Signal to noise ratio (A weighting),
Pout = 1.2 W, RL = 8 Ω
tWU Wake-up time
tSTBY Standby time
2
0.4
78
88
63
57
-3---0---0----k---Ω---
Rin
300
280
85
5
5
3----2---7----k---Ω---
Rin
327
360
10
10
Unit
mA
nA
mV
W
%
%
dB
dB
V/V
kΩ
kHz
dB
ms
ms
Doc ID 10968 Rev 8
7/44
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