SSM2375 Datasheet, PDF (4/13 Pages) Analog Devices – Filterless High Efficiency Mono 3 W Class-D Audio Amplifier

SSM2375
Preliminary Technical Data
SPECIFICATIONS
VDD = 5.0 V, TA = 25^oC, RL = 8 Ω +33 μH, EDGE = GND, unless otherwise noted.
Table 1.
Parameter
DEVICE CHARACTERISTICS
Output Power
Efficiency
Total Harmonic Distortion + Noise
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
Average Switching Frequency
Differential Output Offset Voltage
POWER SUPPLY
Supply Voltage Range
Power Supply Rejection Ratio
Supply Current
Shutdown Current
GAIN CONTROL
Closed-Loop Gain
Input Impedance
SHUTDOWN CONTROL
Input Voltage High
Input Voltage Low
Turn-On Time
Turn-Off Time
Output Impedance
Symbol
POUT
η
THD + N
VCM
CMRRGSM
fSW
VOOS
VDD
PSRR
PSRRGSM
ISY
ISD
Av
ZIN
VIH
VIL
tWU
tSD
ZOUT
Conditions
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 2.5V
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
RL = 3 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
RL = 3 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
RL = 3 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 2.5V
RL = 3 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
RL = 3 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
RL = 3 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
POUT = 1.4 W, 8 Ω, VDD = 5.0 V
POUT = 1 W into 8 Ω, f = 1 kHz, VDD = 5.0 V
POUT = 0.5 W into 8 Ω, f = 1 kHz, VDD = 3.6 V
VCM = 2.5 V ± 100 mV at 217 Hz, output referred
G = 6 dB
Guaranteed from PSRR test
VDD = 2.5 V to 5.0 V, dc input floating/ground
VRIPPLE = 100 mV at 217 Hz, inputs ac GND, CIN = 0.1 μF
VRIPPLE = 100 mV at 1 kHz, inputs ac GND, CIN = 0.1 μF
VIN = 0 V, no load, VDD = 5.0 V
VIN = 0 V, no load, VDD = 3.6 V
VIN = 0 V, no load, VDD = 2.5 V
VIN = 0 V, load = 8 Ω + 33 μH, VDD = 5.0 V
VIN = 0 V, load = 8 Ω + 33 μH, VDD = 3.6 V
VIN = 0 V, load = 8 Ω + 33 μH, VDD = 2.5 V
SD = GND
SD = VDD, Fixed Input Impedance (0-12dB)
SD rising edge from GND to VDD
SD falling edge from VDD to GND
SD = GND
Min Typ
1.42
0.72
0.33
1.77
0.91
0.42
2.52
1.28
0.56
3.17¹
1.6
0.72
3.2¹
1.52
0.68
3.7¹
1.9
0.85
93
0.01
0.01
1.0
55
250
0.1
2.5
78
80
80
3.0
2.7
2.5
3.1
2.8
2.6
20
0
80
1.35
12.5
5
>100
Max Unit
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
%
%
%
VDD − 1 V
dB
kHz
5.0
mV
5.5
V
dB
dB
dB
mA
mA
mA
mA
mA
mA
nA
12
dB
kΩ
V
0.35 V
ms
μs
kΩ
Rev. PrC | Page 4 of 13