SSM2315
Rev. A | Page 3 of 16
SPECIFICATIONS
V
DD
= 5.0 V, T
A
= 25
o
C, R
L
= 8 Ω + 33 μH, unless otherwise noted.
Table 1.
Parameter Symbol Conditions
1
Min Typ Max Unit
DEVICE CHARACTERISTICS
Output Power P
O
R
L
= 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V 1.48 W
R
L
= 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V 0.75 W
R
L
= 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V 1.84 W
R
L
= 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V 0.94 W
R
L
= 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V 2.72 W
R
L
= 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V 1.38 W
R
L
= 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V 3.40
2
W
R
L
= 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V 1.72 W
R
L
= 3 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V 3.43 W
R
L
= 3 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V 1.72 W
R
L
= 3 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V
4.28
2
W
R
L
= 3 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V 2.14 W
Efficiency η P
O
= 1.4 W, R
L
= 8 Ω + 33 μH, V
DD
= 5.0 V 93 %
Total Harmonic Distortion + Noise THD + N P
O
= 1 W, R
L
= 8 Ω + 33 μH, f = 1 kHz, V
DD
= 5.0 V 0.004 %
P
O
= 0.5 W, R
L
= 8 Ω + 33 μH, f = 1 kHz, V
DD
= 3.6 V 0.004 %
Input Common-Mode Voltage Range V
CM
1.0 V
DD
− 1.0 V
Common-Mode Rejection Ratio CMRR
GSM
V
CM
= 2.5 V ± 100 mV at 217 Hz, output referred 55 dB
Average Switching Frequency f
SW
280 kHz
Differential Output Offset Voltage V
OOS
Gain = 6 dB 2.0 mV
POWER SUPPLY
Supply Voltage Range V
DD
Guaranteed from PSRR test 2.5 5.5 V
Power Supply Rejection Ratio PSRR V
DD
= 2.5 V to 5.0 V, dc input floating 70 85 dB
PSRR
GSM
V
RIPPLE
= 100 mV at 217 Hz, inputs ac GND, C
IN
= 0.1 μF 60 dB
Supply Current I
SY
V
IN
= 0 V, no load, V
DD
= 5.0 V 3.2 mA
V
IN
= 0 V, no load, V
DD
= 3.6 V 2.8 mA
V
IN
= 0 V, no load, V
DD
= 2.5 V 2.4 mA
V
IN
= 0 V, load = 8 Ω+ 33 μH, V
DD
= 5.0 V
3.3 mA
V
IN
= 0 V, load = 8 Ω+ 33 μH, V
DD
= 3.6 V
2.9 mA
V
IN
= 0 V, load = 8 Ω+ 33 μH, V
DD
= 2.5 V
2.4 mA
Shutdown Current I
SD
SD
= GND
20 nA
GAIN CONTROL
Closed-Loop Gain Gain 6 dB
Differential Input Impedance Z
IN
SD
= V
DD
80 kΩ
SHUTDOWN CONTROL
Input Voltage High V
IH
I
SY
≥ 1 mA 1.2 V
Input Voltage Low V
IL
I
SY
≤ 300 nA 0.5 V
Turn-On Time t
WU
SD
rising edge from GND to V
DD
7 ms
Turn-Off Time t
SD
SD
falling edge from V
DD
to GND
5 μs
Output Impedance Z
OUT
SD
= GND
>100 kΩ
NOISE PERFORMANCE
Output Voltage Noise e
n
V
DD
= 3.6 V, f = 20 Hz to 20 kHz, inputs are ac-grounded,
gain = 6 dB, A-weighted
21 μV rms
Signal-to-Noise Ratio SNR P
O
= 1.4 W, R
L
= 8 Ω 103 dB
1
Note that although the SSM2315 has good audio quality above 3 W, continuous output power beyond 3 W must be avoided due to device packaging limitations.
2
This value represents measured performance; packaging limitations must not be exceeded.
