参数资料
型号: MAX9877AERP+T
厂商: Maxim Integrated Products
文件页数: 15/31页
文件大小: 0K
描述: IC SUBSYSTEM MONO AUD 20MAXFILM
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: DirectDrive®
类型: D 类
输出类型: 1-通道(单声道),带立体声耳机
在某负载时最大输出功率 x 通道数量: 825mW x 1 @ 4 欧姆; 53mW x 2 @ 16 欧姆
电源电压: 2.7 V ~ 5.25 V
特点: 消除爆音,I²C,输入多路复用器,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: 20-UCSP
封装/外壳: 20-WFBGA,CSPBGA
包装: 带卷 (TR)
Shutdown (S
SH
HD
DN
N)
1 = MAX9877A operational.
0 = MAX9877A in low-power shutdown mode.
SHDN is an active-low shutdown bit that overrides all
settings and places the entire device in low-power shut-
down mode. The I2C interface is fully active in this shut-
down mode and bypass mode remains operational. All
register settings are preserved while in shutdown.
MAX9877AERP
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
22
______________________________________________________________________________________
Volume Control
The device has a separate volume control for left head-
phone, right headphone, and speaker amplifiers. The
total system gain is a combination of the input gain, the
volume control, and the output amplifier gain. Table 4
shows the volume settings for each volume control.
Table 4. Volume Control Settings
_VOL
CODE
B4
B3
B2
B1
B0
GAIN (dB)
0
MUTE
1
0
1
-75
2
0
1
0
-71
3
0
1
-67
4
0
1
0
-63
5
0
1
0
1
-59
6
0
1
0
-55
7
0
1
-51
8
0
1
0
-47
9
0
1
0
1
-44
10
0
1
0
1
0
-41
11
0
1
0
1
-38
12
0
1
0
-35
13
0
1
0
1
-32
14
0
1
0
-29
15
0
1
-26
_VOL
CODE
B4
B3
B2
B1
B0
GAIN (dB)
16
1
0
-23
17
1
0
1
-21
18
1
0
1
0
-19
19
1
0
1
-17
20
1
0
1
0
-15
21
1
0
1
0
1
-13
22
1
0
1
0
-11
23
1
0
1
-9
24
1
0
-7
25
1
0
1
-6
26
1
0
1
0
-5
27
1
0
1
-4
28
1
0
-3
29
1
0
1
-2
30
1
0
-1
31
1
0
Table 5. Output Mode Control
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
0x04
SHDN
BYPASS
OSC (Table 6 )
OUTMODE (Table 7)
Table 3. Speaker/Left Headphone/Right Headphone Volume Control
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
0x01
0
SVOL (Table 4)
0x02
0
HPLVOL (Table 4)
0x03
0
HPRVOL (Table 4)
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