SSM2305
Rev. A | Page 3 of
16
SPECIFICATIONS
VDD = 5.0 V, TA = 25oC, RL = 8 Ω + 33 μH, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
DEVICE CHARACTERISTICS
Output Power
PO
RL = 8 Ω, THD = 1%, f = 1 kHz, BW = 20 kHz
1.34
W
RL = 8 Ω, THD = 1%, f = 1 kHz, BW = 20 kHz, VDD = 3.6 V
0.68
W
RL = 8 Ω, THD = 10%, f = 1 kHz, BW = 20 kHz
1.67
W
RL = 8 Ω, THD = 10%, f = 1 kHz, BW = 20 kHz, VDD = 3.6 V
0.85
W
RL = 4 Ω, THD = 1%, f = 1 kHz, BW = 20 kHz
2.22
W
RL = 4 Ω, THD = 1%, f = 1 kHz, BW = 20 kHz, V= 3.6 V
1.1
W
RL = 4 Ω, THD = 10%, f = 1 kHz, BW = 20 kHz
2.8
W
RL = 4 Ω, THD = 10%, f = 1 kHz, BW = 20 kHz, VDD = 3.6 V
1.3
W
Efficiency
η
PO = 1.3 W, 8 Ω
89
%
Total Harmonic Distortion + Noise
THD + N
PO = 1 W into 8 Ω, f = 1 kHz
0.02
%
PO = 0.5 W into 8 Ω, f = 1 kHz, VDD = 3.6 V
0.02
%
Input Common-Mode Voltage Range
VCM
1.0
VDD 1
V
Common-Mode Rejection Ratio
CMRRGSM
VCM = 2.5 V ± 100 mV at 217 Hz, output referred
55
dB
Average Switching Frequency
fSW
280
kHz
Differential Output Offset Voltage
VOOS
G = 18 dB
2.0
mV
POWER SUPPLY
Supply Voltage Range
VDD
Guaranteed from PSRR test
2.5
5.5
V
Power Supply Rejection Ratio
PSRR
VDD = 2.5 V to 5.0 V, dc input floating
70
85
dB
PSRRGSM
VRIPPLE = 100 mV at 217 Hz, inputs ac GND, CIN = 0.1 μF
60
dB
Supply Current
ISY
VIN = 0 V, no load
3.2
mA
VIN = 0 V,
3.3
mA
VIN = 0 V, no load, VDD = 3.6 V
2.8
mA
VIN = 0 V, VDD = 3.6 V
2.9
mA
VIN = 0 V, no load, VDD = 2.5 V
2.4
mA
VIN = 0 V, VDD = 2.5 V
2.4
mA
Shutdown Current
ISD
SD = GND
20
30
nA
GAIN CONTROL
Closed-Loop Gain
Av
18
dB
Differential Input Impedance
ZIN
SD = VDD
37
kΩ
SHUTDOWN CONTROL
Input Voltage High
VIH
ISY ≥ 1 mA
1.2
V
Input Voltage Low
VIL
ISY ≤ 300 nA
0.5
V
Wake-Up Time
tWU
SD rising edge from GND to VDD
30
ms
Shutdown Time
tSD
SD falling edge from VDD to GND
5
μs
Output Impedance
ZOUT
SD = GND
>100
kΩ
NOISE PERFORMANCE
Output Voltage Noise
en
VDD = 3.6 V, f = 20 Hz to 20 kHz, inputs are ac grounded,
AV = 18 dB, A-weighted
40
μV
Signal-to-Noise Ratio
SNR
PO = 1.4 W, RL = 8 Ω
98
dB