SSM2377
Rev. 0 | Page 3 of 16
SPECIFICATIONS
VDD = 5.0 V, TA = 25°C, RL = 8 Ω +33 μH, unless otherwise noted.
Table 1.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
DEVICE CHARACTERISTICS
Output Power
POUT
f = 1 kHz, 20 kHz BW
RL = 8 Ω, THD = 1%, VDD = 5.0 V
1.41
W
RL = 8 Ω, THD = 1%, VDD = 3.6 V
0.72
W
RL = 8 Ω, THD = 1%, VDD = 2.5 V
0.33
W
RL = 8 Ω, THD = 10%, VDD = 5.0 V
1.78
W
RL = 8 Ω, THD = 10%, VDD = 3.6 V
0.90
W
RL = 8 Ω, THD = 10%, VDD = 2.5 V
0.41
W
RL = 4 Ω, THD = 1%, VDD = 5.0 V
2.49
W
RL = 4 Ω, THD = 1%, VDD = 3.6 V
1.25
W
RL = 4 Ω, THD = 1%, VDD = 2.5 V
W
RL = 4 Ω, THD = 10%, VDD = 5.0 V
W
RL = 4 Ω, THD = 10%, VDD = 3.6 V
1.56
W
RL = 4 Ω, THD = 10%, VDD = 2.5 V
0.68
W
Efficiency
η
POUT = 1.4 W into 8 Ω, VDD = 5.0 V
92.4
%
Total Harmonic Distortion
Plus Noise
THD + N
POUT = 1 W into 8 Ω, f = 1 kHz, VDD = 5.0 V
0.007
%
POUT = 0.5 W into 8 Ω, f = 1 kHz, VDD = 3.6 V
0.009
%
Input Common-Mode Voltage
Range
VCM
1.0
VDD 1
V
Common-Mode Rejection
Ratio
CMRR
100 mV rms at 1 kHz
51
dB
Average Switching Frequency
fSW
256
kHz
Clock Frequency
fOSC
6.2
MHz
Differential Output Offset
Voltage
VOOS
Gain = 6 dB
0.4
5.0
mV
POWER SUPPLY
Supply Voltage Range
VDD
Guaranteed from PSRR test
2.5
5.5
V
Power Supply Rejection Ratio
Inputs are ac-grounded, CIN = 0.1 μF,
gain = 6 dB
PSRRGSM
VRIPPLE = 100 mV at 217 Hz
80
dB
PSRR
VRIPPLE = 100 mV at 1 kHz
80
dB
Supply Current
ISY
VIN = 0 V, no load, VDD = 5.0 V
2.5
mA
VIN = 0 V, no load, VDD = 3.6 V
2.0
mA
VIN = 0 V, no load, VDD = 2.5 V
1.9
mA
VIN = 0 V, RL = 8 Ω + 33 μH, VDD = 5.0 V
2.5
mA
VIN = 0 V, RL = 8 Ω + 33 μH, VDD = 3.6 V
2.0
mA
VIN = 0 V, RL = 8 Ω + 33 μH, VDD = 2.5 V
1.8
mA
Shutdown Current
ISD
SD = GND
100
nA
GAIN CONTROL
Closed-Loop Gain
Gain
GAIN = GND
12
dB
GAIN = VDD
6
dB
Input Impedance
ZIN
SD = VDD, gain = 6 dB or 12 dB
80
kΩ
SHUTDOWN CONTROL
Input Voltage High
VIH
1.35
V
Input Voltage Low
VIL
0.35
V
Turn-On Time
tWU
SD rising edge from GND to VDD
12.5
ms
Turn-Off Time
tSD
SD falling edge from VDD to GND
5
μs
Output Impedance
ZOUT
SD = GND
100
kΩ