SSM2306
Rev. 0 | Page 3 of 16
SPECIFICATIONS
VDD = 5.0 V; TA = 25oC; RL = 4 Ω, 8 Ω; gain = 6 dB, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
DEVICE CHARACTERISTICS
Output Power
PO
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
1.8
W
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
1.4
W
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
0.9
W
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
0.615
W
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
0.35
W
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
0.275
W
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
2.4
W
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
1.53
W
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
1.1
W
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
0.77
W
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
0.45
W
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 2.5 V
0.35
W
Efficiency
η
POUT = 2 W, 4 Ω, VDD = 5.0 V
75
%
POUT = 1.4 W, 8 Ω, VDD = 5.0 V
85
%
Total Harmonic Distortion + Noise
THD + N
PO = 2 W into 4 Ω each channel, f = 1 kHz, VDD = 5.0 V
0.4
%
PO = 1 W into 8 Ω each channel, f = 1 kHz, VDD = 5.0 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, G = 18 dB, input
referred
70
dB
Channel Separation
XTALK
PO = 100 mW , f = 1 kHz
78
dB
Average Switching Frequency
fSW
420
kHz
Differential Output Offset Voltage
VOOS
2.0
mV
POWER SUPPLY
Supply Voltage Range
VDD
Guaranteed from PSRR test
2.5
5.0
V
Power Supply Rejection Ratio
PSRR
VDD = 2.5 V to 5.0 V
70
85
dB
PSRRGSM
VRIPPLE = 100 mV rms at 217 Hz, inputs ac GND,
CIN = 0.1 μF, input referred
75
dB
Supply Current
ISY
VIN = 0 V, no load, VDD = 5.0 V
6.5
mA
VIN = 0 V, no load, VDD = 3.6 V
5.7
mA
VIN = 0 V, no load, VDD = 2.5 V
5.1
mA
Shutdown Current
ISD
SD = GND
20
nA
GAIN
Closed-Loop Gain
Av
REXT = 0
18
dB
Differential Input Impedance
ZIN
SD = VDD
43
kΩ
SHUTDOWN CONTROL
Input Voltage High
VIH
ISY ≥ 1 mA
1.2
V
Input Voltage Low
VIL
ISY ≤ 300 nA
0.5
V
Turn-On Time
tWU
SD rising edge from GND to VDD
30
ms
Turn-Off Time
tSD
SD falling edge from VDD to GND
5
μs
Output Impedance
OUT
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, RL = 4 Ω, A weighting
44
μV
Signal-to-Noise Ratio
SNR
POUT = 2.0 W, RL = 4 Ω
96
dB