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TS4984 Datasheet, PDF (6/29 Pages) STMicroelectronics – 2 x 1W Stereo audio power amplifier with active low standby mode
TS4984
Electrical characteristics
Table 6: Electrical characteristics for VCC = +2.6V, GND = 0V, Tamb = 25°C (unless otherwise
specified)
Symbol
Parameter
Min. Typ. Max. Unit
ICC
Supply Current
No input signal, no load
ISTANDBY
Standby Current 1
No input signal, Vstdby = GND, RL = 8Ω
Voo
Output Offset Voltage
No input signal, RL = 8Ω
Pout
Output Power
THD = 1% Max, F = 1kHz, RL = 8Ω
THD + N
Total Harmonic Distortion + Noise
Po = 200mWrms, Av = 2, 20Hz ≤ F ≤ 20kHz, RL = 8Ω
PSRR
Power Supply Rejection Ratio2
RL = 8Ω, Av = 2, Vripple = 200mVpp, Input Grounded
F = 217Hz
F = 1kHz
Channel Separation, RL = 8Ω
Crosstalk F = 1kHz
F = 20Hz to 20kHz
TWU Wake-Up Time (Cb = 1µF)
TSTDB Standby Time (Cb = 1µF)
VSTDBH Standby Voltage Level High
VSTDBL Standby Voltage Level Low
ΦM
Phase Margin at Unity Gain
RL = 8Ω, CL = 500pF
Gain Margin
GM
RL = 8Ω, CL = 500pF
GBP
Gain Bandwidth Product
RL = 8Ω
6.2
12
mA
10 1000
nA
1
10
mV
200 250
mW
0.1
%
55
60
dB
55
62
-95
dB
-68
125 150
ms
10
µs
1.2
V
0.4
V
65
Degrees
15
dB
1.5
MHz
1) Standby mode is activated when Vstdby is tied to Gnd
2) All PSRR data limits are guaranteed by production sampling tests
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon Vcc.
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