参数资料
型号: SSM2804CBZ-R7
厂商: Analog Devices Inc
文件页数: 3/36页
文件大小: 0K
描述: IC AMP AUDIO 1.4W SPKR 30WLSCP
标准包装: 1,500
类型: D 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 3.6W x 2 @ 4 欧姆; 40mW x 2 @ 16 欧姆
电源电压: 2.5 V ~ 3.6 V
特点: 消除爆音,I²C,短路和热保护,关机,音量控制
安装类型: 表面贴装
供应商设备封装: 30-WLCSP(2.96x2.46)
封装/外壳: 30-WFBGA,WLBGA
包装: 带卷 (TR)
SSM2804
Rev. 0 | Page 11 of 36
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.5
3.0
3.5
4.0
4.5
5.0
OU
TP
U
T
P
O
W
E
R
(
W
)
SUPPLY VOLTAGE (V)
f = 1kHz
RL = 8 + 33H
THD + N = 10%
THD + N = 0.1%
THD + N = 1%
09
96
0-
0
16
Figure 16. Output Power vs. Supply Voltage, Class-D Amplifier, RL = 8 Ω
400
0
02
S
UP
P
L
Y
CURR
E
NT
(m
A)
OUTPUT POWER (W)
50
100
150
200
250
300
350
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
.0
PVDD = 2.7V
PVDD = 3.6V
PVDD = 4.2V
PVDD = 5V
RL = 8 + 33H
09
96
0-
0
18
Figure 17. Supply Current vs. Output Power into 8 Ω, Class-D Amplifier
100
90
80
70
60
50
40
30
20
10
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
EF
F
IC
IEN
C
Y
(%
)
OUTPUT POWER (W)
RL = 8 + 33H
09
96
0-
0
20
PVDD = 2.7V
PVDD = 3.6V
PVDD = 4.2V
PVDD = 5V
Figure 18. Efficiency vs. Output Power into 8 Ω, Class-D Amplifier
3.5
2.0
2.5
3.0
1.5
1.0
0.5
0
2.5
3.0
3.5
4.0
4.5
5.0
OU
TP
U
T
P
O
W
E
R
(
W
)
SUPPLY VOLTAGE (V)
f = 1kHz
RL = 4 + 15H
THD + N = 10%
THD + N = 0.1%
THD + N = 1%
09
96
0-
0
17
Figure 19. Output Power vs. Supply Voltage, Class-D Amplifier, RL = 4 Ω
800
0
03
S
UP
P
LY
CUR
RE
NT
(
m
A)
OUTPUT POWER (W)
100
200
300
400
500
600
700
0.5
1.0
1.5
2.0
2.5
3.0
.5
RL = 4 + 15H
09
96
0-
0
1
9
PVDD = 5V
PVDD = 4.2V
PVDD = 3.6V
PVDD = 2.7V
Figure 20. Supply Current vs. Output Power into 4 Ω, Class-D Amplifier
100
90
80
70
60
50
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
EF
F
IC
IEN
C
Y
(%
)
OUTPUT POWER (W)
RL = 4 + 15H
09
96
0-
0
21
PVDD = 2.7V
PVDD = 3.6V
PVDD = 4.2V
PVDD = 5V
Figure 21. Efficiency vs. Output Power into 4 Ω, Class-D Amplifier
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