TS4962M_07 Datasheet, PDF (5/41 Pages) STMicroelectronics – 3W filter-free class D audio power amplifier

TS4962M
3
Electrical characteristics
Electrical characteristics
Table 4.
Symbol
V_CC = +5V, GND = 0V, V_IC = 2.5V, t_amb = 25°C (unless otherwise specified)
Parameter
Conditions
Min. Typ. Max.
I_CC
I_STBY
V_OO
Supply current
Standby current ⁽¹⁾
Output offset voltage
P_out Output power
THD + N
Total harmonic
distortion + noise
Efficiency Efficiency
PSRR
Power supply
rejection ratio with
inputs grounded ⁽²⁾
No input signal, no load
No input signal, V_STBY = GND
No input signal, R_L = 8Ω
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
P_out = 900mW_RMS, G = 6dB, 20Hz < F < 20kHz
R_L = 8Ω + 15µH, BW < 30kHz
P_out = 1W_RMS, G = 6dB, F = 1kHz,
R_L = 8Ω + 15µH, BW < 30kHz
P_out = 2W_RMS, R_L = 4Ω +≥ 15µH
P_out =1.2W_RMS, R_L = 8Ω+≥ 15µH
F = 217Hz, R_L = 8Ω, G=6dB,
V_ripple = 200mV_pp
2.3 3.3
10 1000
3
25
2.3
3
1.4
1.75
1
0.4
78
88
63
CMRR
Common mode
rejection ratio
Gain Gain value
F = 217Hz, R_L = 8Ω, G = 6dB,
ΔV_icm = 200mV_pp
R_in in kΩ
57
-2---7---3----k----^Ω--
Rin
3----0---0----k---Ω_---
R_in
-3---2---7----k---^Ω---
R_in
R_STBY
Internal resistance
from Standby to GND
273 300 327
F_PWM
Pulse width modulator
base frequency
180 250 320
SNR
t_WU
t_STBY
Signal to noise ratio
Wake-up time
Standby time
A-weighting, P_out = 1.2W, R_L = 8Ω
85
5
10
5
10
Unit
mA
nA
mV
W
%
%
dB
dB
V/V
kΩ
kHz
dB
ms
ms
5/41