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参数资料
| 型号： | SSM2301CPZ-R2 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | Filterless High Efficiency Mono 1.4 W Class-D Audio Amplifier |
| 中文描述： | 滤波高效单声道1.4 W功率，D类音频放大器 |
| 文件页数： | 3/19页 |
| 文件大小： | 334K |
| 代理商： | SSM2301CPZ-R2 |
Preliminary Technical Data
SSM2301
SPECIFICATIONS
V
DD
= 5.0 V, T
A
= 25
o
C, R
L
= 8 Ω, unless otherwise noted
Table 1.
Parameter
DEVICE CHARACTERISTICS
Output Power
Efficiency
Total Harmonic Distortion + Noise
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
Average Switching Frequency
Differential Output Offset Voltage
POWER SUPPLY
Supply Voltage Range
Power Supply Rejection Ratio
Symbol
P
O
η
THD + N
V
CM
CMRR
GSM
f
SW
V
OOS
V
DD
PSRR
PSRR
GSM
Conditions
R
L
= 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V
R
L
= 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V
R
L
= 8 Ω, THD = 1%, f = 1 kHz, 20 kHz BW, V
DD
= 2.5 V
R
L
= 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 5.0 V
R
L
= 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 3.6 V
R
L
= 8 Ω, THD = 10%, f = 1 kHz, 20 kHz BW, V
DD
= 2.5 V
P
OUT
=1.4 W, 8 Ω, V
DD
= 5.0 V
P
O
= 1 W into 8 Ω, f = 1 kHz, V
DD
= 5.0 V
P
O
= 0.5 W into 8 Ω, f = 1 kHz, V
DD
= 3.6 V
V
CM
= 2.5 V ± 100 mV at 217 Hz
G = 6 dB; G = 12 dB
Guaranteed from PSRR test
V
DD
= 2.5 V to 5.0 V, 50 Hz, input floating/ground
V
RIPPLE
= 100 mV at 217 Hz, inputs ac GND,
C
IN
= 0.01 μF, input referred
V
IN
= 0 V, no load, V
DD
= 5.0 V
V
IN
= 0 V, no load, V
DD
= 3.6 V
V
IN
= 0 V, no load, V
DD
= 2.5 V
SD = GND
GAIN pin = 0 V
GAIN pin = V
DD
SD = VDD,
SD = GND
I
SY
≥ 1 mA
I
SY
≤ 300 nA
SD rising edge from GND to V
DD
SD falling edge from V
DD
to GND
SD = GND
V
DD
= 2.5 V to 5.0 V, f = 20 Hz to 20 kHz, inputs are
ac grounded, sine wave, A
V
= 6 dB, A weighting
P
OUT
= 1.4 W, R
L
= 8 Ω
Min
1.0
2.5
70
Typ
1.4
0.615
0.275
1.53
0.77
0.35
85
0.1
0.04
55
1.8
2.0
85
63
Max
V
DD
1
5.0
Unit
W
W
W
W
W
W
%
%
%
V
dB
MHz
mV
V
dB
dB
Supply Current
Shutdown Current
GAIN CONTROL
Closed-Loop Gain
Differential Input Impedance
SHUTDOWN CONTROL
Input Voltage High
Input Voltage Low
Turn-On Time
Turn-Off Time
Output Impedance
NOISE PERFORMANCE
Output Voltage Noise
I
SY
I
SD
Av0
Av1
Z
IN
V
IH
V
IL
t
WU
t
SD
Z
OUT
e
n
5.5
4.5
4.0
20
6
12
150
210
1.2
0.5
30
5
>100
35
mA
mA
mA
nA
dB
dB
KΩ
KΩ
V
V
ms
μs
KΩ
μV
Signal-to-Noise Ratio
SNR
98
dB
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