SSM2356CBZ-RL Datasheet, PDF (3/16 Pages) Analog Devices – 2 x 2W Filterless Class-D Stereo Audio Amplifier

Data Sheet
SSM2356
SPECIFICATIONS
VDD = 5.0 V, TA = 25^oC, RL = 8 Ω +33 μH, EDGE = GND, Gain = 6 dB, unless otherwise noted.
Table 1.
Parameter
Symbol Conditions
Min Typ Max Unit
DEVICE CHARACTERISTICS
Output Power/Channel
PO
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
1.42
W
RL = 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
0.75
W
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
1.8
W
RL = 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
0.94
W
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
2.0
W
RL = 4 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
1.3
W
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 5.0 V
2.5¹
W
RL = 4 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, VDD = 3.6 V
1.7
W
Efficiency
η
PO = 1.4 W, 8 Ω, VDD = 5.0 V, EDGE = GND
(normal, low EMI mode)
92
%
PO = 1.4 W, 8 Ω, VDD = 5.0 V, EDGE = VDD
(ultralow EMI mode)
90
%
Total Harmonic Distortion + Noise THD + N PO = 1 W into 8 Ω, f = 1 kHz, VDD = 5.0 V
0.004
%
Input Common-Mode Voltage Range VCM
PO = 0.5 W into 8 Ω, f = 1 kHz, VDD = 3.6 V
0.004
%
1.0
VDD − 1 V
Common-Mode Rejection Ratio
CMRRGSM VCM = 2.5 V ± 100 mV at 217 Hz, output referred
55
dB
Channel Separation
XTALK
PO = 100 mW, f = 1 kHz
78
dB
Average Switching Frequency
fSW
300
kHz
Differential Output Offset Voltage VOOS
Gain = 6 dB
2.0
mV
POWER SUPPLY
Supply Voltage Range
VDD
Guaranteed from PSRR test
2.5
5.5
V
Power Supply Rejection Ratio
PSRR
(DC)
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 (stereo)
ISY
VIN = 0 V, no load, VDD = 5.0 V
5.75
mA
VIN = 0 V, no load, VDD = 3.6 V
VIN = 0 V, no load, VDD = 2.5 V
4.9
mA
4.7
mA
VIN = 0 V, load = 8 Ω + 33 µH, VDD = 5.0 V
5.5
mA
VIN = 0 V, load = 8 Ω + 33 µH, VDD = 3.6 V
5.1
mA
VIN = 0 V, load = 8 Ω + 33 µH, VDD = 2.5 V
4.5
mA
Shutdown Current
ISD
SDNR = SDNL= GND
20
nA
GAIN CONTROL
Closed-Loop Gain
Gain
GAIN = VDD
18
dB
Gain
GAIN = GND
6
dB
Input Impedance
ZIN
SDNR = SDNL = VDD; GAIN = GND or VDD
80
kΩ
SHUTDOWN CONTROL
Input Voltage High
VIH
1.35
V
Input Voltage Low
VIL
0.35
V
Turn-On Time
tWU
SDNR/SDNL rising edge from GND to VDD
7
ms
Turn-Off Time
tSD
SDNR/SDNL falling edge from VDD to GND
5
µs
Output Impedance
ZOUT
SDNR/SDNL = GND
>100
kΩ
NOISE PERFORMANCE
Output Voltage Noise
en
VDD = 3.6 V, f = 20 Hz to 20 kHz, inputs are ac grounded,
29
Gain = 6 dB, A-weighted
µVrms
Signal-to-Noise Ratio
SNR
PO = 1.4 W, RL = 8 Ω
100
dB
1 _{Note that, although the SSM2356 has good audio quality above 2 W per channel, continuous output power beyond 2 W per channel must be avoided due to device}
packaging limitations.
Rev. A | Page 3 of 16