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TS2007_11 Datasheet, PDF (11/29 Pages) STMicroelectronics – 3 W filter-free Class D audio power amplifer with 6-12 dB fixed gain select
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TS2007
Electrical characteristics
Table 9. VCC = +2.4 V, GND = 0 V, Vic=1.2 V, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter
Min. Typ. Max. Unit
ICC
ICC-STBY
Voo
Po
THD + N
Efficiency
PSRR
CMRR
Gain
Zin
FPWM
SNR
tWU
tSTBY
VN
Supply current
No input signal, no load
Standby current (1)
No input signal, VSTBY = GND
Output offset voltage
Floating inputs, RL = 8 Ω
Output power
THD+N = 1% Max, f = 1 kHz, RL = 4 Ω
THD+N = 1% Max, f = 1 kHz, RL = 8 Ω
THD = 10% Max, f = 1 kHz, RL = 4 Ω
THD = 10% Max, f = 1 kHz, RL = 8 Ω
Total harmonic distortion + noise
Po = 200 mWRMS, G = 6 dB, f = 1 kHz, RL = 8 Ω
Efficiency
Po = 0.38 WRMS, RL = 4 Ω (with LC output filter)
Po = 0.25 WRMS, RL = 8 Ω (with LC output filter)
Power supply rejection ratio with inputs grounded, Cin = 1 µF (2)
f = 217 Hz, RL = 8 Ω, Gain=6 dB,Vripple = 200 mVpp
f = 217 Hz, RL = 8 Ω, Gain=12 dB, Vripple = 200 mVpp
Common mode rejection ratio 20 Hz < f < 20 kHz
Gain value
GS = 0 V
GS = VCC
Single input impedance (3)
Pulse width modulator base frequency
Signal-to-noise ratio (A-weighting)
Po=0.4 W, RL=4 Ω (with LC output filter)
Wake-up time
Standby time
Output voltage noise f = 20 Hz to 20 kHz, RL = 4 Ω
Unweighted (filterless, G=6 dB)
A-weighted (filterless, G=6 dB)
Unweighted (with LC output filter, G=6 dB)
A-weighted (with LC output filter, G=6 dB)
Unweighted (filterless, G=12 dB)
A-weighted (filterless, G=12 dB)
Unweighted (with LC output filter, G=12 dB)
A-weighted (with LC output filter, G=12 dB)
1.7 2.4
mA
10 1000 nA
25
mV
0.48
0.3
W
0.6
0.36
0.1
%
82
%
90
63
dB
60
60
dB
11.5 12 12.5 dB
5.5
6
6.5
68 75 82
kΩ
190 280 370 kHz
88
dB
5
10
ms
5
ms
70
50
66
49
μVRMS
91
65
84
64
1. Standby mode is active when VSTBY is tied to GND.
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the superimposed sinus signal to VCC @ f = 217 Hz.
3. Independent of Gain configuration (6 or 12 dB) and between IN+ or IN- and GND.
Doc ID 13123 Rev 4
11/29
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