TS488 Datasheet, PDF (7/32 Pages) STMicroelectronics – Pop-free 120mW stereo headphone amplifier

TS488-TS489
Electrical characteristics
Table 6.
Symbol
Electrical characteristics at V_CC = +2.5V
with GND = 0V, T_amb = 25°C (unless otherwise specified)
Parameter
Conditions
I_CC Supply current
I_STBY Standby current
P_out Output power
THD+N
Total harmonic distortion
+ noise
No input signal, no load
No input signal, V_STBY = GND for TS488,
R_L=32Ω
No input signal, V_STBY = V_CC for TS489,
R_L=32Ω
THD+N = 0.1% max, F = 1kHz, R_L = 32Ω
THD+N = 1% max, F = 1kHz, R_L = 32Ω
THD+N = 0.1% max, F = 1kHz, R_L = 16Ω
THD+N = 1% max, F = 1kHz, R_L = 16Ω
A_V=-1, R_L = 32Ω, P_out = 10mW,
20Hz ≤ F ≤ 20kHz
A_V=-1, R_L = 16Ω, P_out = 16mW,
20Hz ≤ F ≤ 20kHz
PSRR
V_O
SNR
Power supply rejection
ratio, inputs grounded ⁽¹⁾
Output swing
Signal-to-noise ratio
A_V=-1, R_L ≥ 16Ω, C_b=1µF, F = 1kHz,
V_ripple = 200mVpp
A_V=-1, R_L ≥ 16Ω, C_b=1µF, F = 217Hz,
V_ripple = 200mVpp
V_OL: R_L = 32Ω
V_OH: R_L = 32Ω
V_OL: R_L = 16Ω
V_OH: R_L = 16Ω
A weighted, A_V=-1, R_L = 32Ω,
THD+N < 0.4%, 20Hz ≤ F ≤ 20kHz
Crosstalk Channel separation
R_L = 32Ω, A_V=-1
F = 1kHz
F = 20Hz to 20kHz
C_i
GBP
SR
Input capacitance
Gain bandwidth product
Slew rate, unity gain
inverting
R_L = 32Ω
R_L = 16Ω
V_IO Input offset voltage
V_icm=V_CC/2
t_wu Wake-up time
1. Guaranteed by design and evaluation.
Min. Typ. Max. Unit
1.8 2.5 mA
10 1000
nA
10 1000
19
18 20
mW
31
27 32
0.3
%
0.3
68
dB
66
0.12 0.16
2.3 2.36
V
0.22 0.28
2.15 2.25
100
dB
-102
-84
1
1.1
dB
pF
MHz
0.6
V/μs
1 20 mV
100
ms
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