A22H165 Datasheet, PDF (7/36 Pages) STMicroelectronics – High-performance class-G stereo headphone amplifier

A22H165
3
Electrical characteristics
Electrical characteristics
The values given in the following table are for the conditions V_CC = +3.6 V, AGND = 0 V,
GAIN = 0 dB, R_L= 32  + 15 , T_amb = 25° C, unless otherwise specified.
Symbol
Table 6. Electrical characteristics of the amplifier
Parameter
Min.
Typ.
Max. Unit
I_CC
Quiescent supply current, no input signal, both channels
enabled
1.2
1.5 mA
Supply current, with input modulation, both channels enabled,
HPVDD = 1.2 V, output power per channel, F = 1 kHz
Pout = 100 µW at 3 dB crest factor
Pout = 500 µW at 3 dB crest factor
I_s
Pout = 1 mW at 3 dB crest factor
Pout = 100 µW at 10 dB crest factor
Pout = 500 µW at 10 dB crest factor
Pout = 1 mW at 10 dB crest factor
I_STBY
V_in
V_oo
V_out
Standby current, no input signal, V_EN = 0 V, V_GAIN=0V
Input differential voltage range⁽¹⁾
Output offset voltage
No input signal
Maximum output voltage, in-phase signals
R_L = 16 THD+N = 1% max, f = 1 kHz
R_L = 47 THD+N = 1% max, f = 1 kHz
R_L = 10 k_s C_L = 1 nFTHD+N = 1% max,
f = 1 kHz
-500
0.6
1.0
1.0
2.3
3.5
3.7
5
mA
4.7
6.5
2.1
3.1
3.9
0.6
5
µA
1
V_rms
+500 µV
0.8
1.1
V_rms
1.3
THD+N
Total harmonic distortion + noise, G = 0 dB
V_out = 700 mVrms,F = 1 kHz
V_out = 700 mVrms, 20 Hz < F < 20 kHz
Power supply rejection ratio⁽¹⁾, V_ripple = 200 mV_pp, grounded
inputs
PSRR
F = 217 Hz, G = 0 dB, R_L 16 
90
F = 10 kHz, G = 0 dB, R_L 16 
CMRR
Common mode rejection ratio
F = 1 kHzG = 0 dB, V_ic = 200 mV_pp
F = 20 Hz to 20 kHzG = 0 dB, V_ic = 200 mV_pp
Channel separation
Crosstalk
R_L = 32 + 15 G = 0 dB, F = 1 kHz, P_o = 10 mW
60
SNR
Signal-to-noise ratio, A-weighted, V_out = 1 V_rms, THD+N < 1%,
F = 1 kHz⁽¹⁾
G = +0 dB
100
Output noise voltage, A-weighted ⁽¹⁾
ONoise
G = +0 dB
0.006 0.02 %
0.05
dB
100
70
65
dB
45
dB
100
dB
9 µVrms
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