參數(shù)資料
型號(hào): MAX9875ERP+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 14/30頁(yè)
文件大小: 0K
描述: IC AUDIO SUBSYSTEM 20UCSP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
系列: DirectDrive®
類(lèi)型: D 類(lèi)
輸出類(lèi)型: 1-通道(單聲道),帶立體聲耳機(jī)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 825mW x 1 @ 4 歐姆; 53mW x 2 @ 16 歐姆
電源電壓: 2.7 V ~ 5.25 V
特點(diǎn): 消除爆音,差分輸入,I²C,靜音,短路和熱保護(hù),關(guān)機(jī),音量控制
安裝類(lèi)型: 表面貼裝
供應(yīng)商設(shè)備封裝: 20-UCSP
封裝/外殼: 20-WFBGA,CSPBGA
包裝: 帶卷 (TR)
MAX9875
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
______________________________________________________________________________________
21
Shutdown (S
SH
HD
DN
N)
1 = MAX9875 operational.
0 = MAX9875 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. All register settings are preserved while in
shutdown.
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
0
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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