TS4962M Datasheet, PDF (9/32 Pages) STMicroelectronics – 3W Filter - free Class D Audio Power Amplifier

TS4962M
Electrical Characteristics
Table 9. V_CC = +2.4V, GND = 0V, V_IC = 2.5V, T_amb = 25°C (unless otherwise specified)
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
I_CC
I_STBY
Supply Current
Standby Current ⁽¹⁾
No input signal, no load
No input signal, V_STBY = GND
1.7
mA
10
nA
V_OO Output Offset Voltage No input signal, R_L = 8Ω
3
mV
P_out Output Power
G=6dB
THD = 1% Max, F = 1kHz, R_L = 4Ω
THD = 10% Max, F = 1kHz, R_L = 4Ω
THD = 1% Max, F = 1kHz, R_L = 8Ω
THD = 10% Max, F = 1kHz, R_L = 8Ω
0.48
0.65
W
0.3
0.38
THD + N
Total Harmonic
Distortion + Noise
P_out = 200mW_RMS, G = 6dB, 20Hz < F< 20kHz
R_L = 8Ω + 15µH, BW < 30kHz
1
%
Efficiency Efficiency
P_out = 0.38W_RMS, R_L = 4Ω + ≥ 15µH
P_out = 0.25W_RMS, R_L = 8Ω+ ≥ 15µH
77
86
%
CMRR
Common Mode
Rejection Ratio
Gain Gain Value
F = 217Hz, R_L = 8Ω, G = 6dB,
∆V_icm = 200mV_pp
R_in in kΩ
54
-2---7---3----k---^Ω---
Rin
3----0---0----k---Ω_---
R_in
-3---2---7----k---^Ω---
R_in
dB
V/V
R_STBY
Internal Resistance
from Standby to GND
273 300 327 kΩ
F_PWM
Pulse Width Modulator
Base Frequency
250
kHz
SNR Signal to Noise Ratio A Weighting, P_out = 1.2W, R_L = 8Ω
t_WU Wake-upTime
t_STBY Standby Time
F = 20Hz to 20kHz, G = 6dB
Unweighted R_L = 4Ω
A weighted R_L = 4Ω
Unweighted R_L = 8Ω
A weighted R_L = 8Ω
Unweighted R_L = 4Ω + 15µH
A weighted R_L = 4Ω + 15µH
V_N Output Voltage Noise _{Unweighted RL = 4Ω + 30µH}
A weighted R_L = 4Ω + 30µH
Unweighted R_L = 8Ω + 30µH
A weighted R_L = 8Ω + 30µH
Unweighted R_L = 4Ω + Filter
A weighted R_L = 4Ω + Filter
Unweighted R_L = 4Ω + Filter
A weighted R_L = 4Ω + Filter
1. Standby mode is active when V_STBY is tied to GND.
80
dB
5
ms
5
ms
85
60
86
62
76
56
82
µV_RMS
60
67
53
78
57
74
54
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