參數(shù)資料
型號: MAX9850ETI+TG47
廠商: Maxim Integrated Products
文件頁數(shù): 17/36頁
文件大?。?/td> 0K
描述: IC AMP AUDIO HDPHN STER 28WQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
系列: DirectDrive®
類型: AB 類
輸出類型: 耳機,2-通道(立體聲)
在某負載時最大輸出功率 x 通道數(shù)量: 95mW x 2 @ 16 歐姆
電源電壓: 1.8 V ~ 3.6 V
特點: DAC,消除爆音,數(shù)字輸入,I²C,I²S,線路級輸入和輸出,靜音,關(guān)機,音量控制
安裝類型: 表面貼裝
供應商設(shè)備封裝: 28-TQFN-EP(5x5)
封裝/外殼: 28-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9850
Volume Register (0x2)
Mute Enable (MUTE)
1 = Mute headphone outputs.
0 = Unmute headphone outputs.
Set MUTE = 1 to mute the headphone outputs (HPR,
HPL). The headphone output is muted on the first zero
crossing of the audio signal if zero-crossing detect is
enabled.
Slew-Rate Control Enable (SLEW)
1 = Enable slew-rate control.
0 = Disable slew-rate control.
The slew-rate control allows the headphone amplifiers to
smoothly slew between volume settings after a volume
change is made. Volume changes occur immediately
when the slew-rate control is disabled.
Volume Control (VOL(5:0))
VOL(5:0) controls the headphone amplifier volume
attenuation. Code 0x00 is full volume while 0x28 to 0x3F
is full attenuation. VMN sets to 1 when code 0x3F is pro-
grammed and the minimum volume is reached. Table
13 lists the volume attenuation settings for each code.
Stereo Audio DAC with DirectDrive
Headphone Amplifier
24
______________________________________________________________________________________
Table 13. Volume Control Settings
Table 12. Volume (0x2) Read/Write, Bit
Descriptions
B7
B6
B5
B4
B3
B2
B1
B0
MUTE
SLEW
VOL(5:0)
VOL(5:0)
SETTING (dB)
0x00
+6.0
0x01
+5.5
0x02
+5.0
0x03
+4.5
0x04
+4.0
0x05
+3.5
0x06
+3.0
0x07
+2.5
0x08
+1.5
0x09
+0.5
0x0A
-0.5
0x0B
-1.5
0x0C
-3.5
0x0D
-5.5
VOL(5:0)
SETTING (dB)
0x0E
-7.5
0x0F
-9.5
0x10
-11.5
0x11
-13.5
0x12
-15.5
0x13
-17.5
0x14
-19.5
0x15
-21.5
0x16
-23.5
0x17
-25.5
0x18
-27.5
0x19
-29.5
0x1A
-31.5
0x1B
-33.5
VOL(5:0)
SETTING (dB)
0x1C
-35.5
0x1D
-37.5
0x1E
-39.5
0x1F
-41.5
0x20
-45.5
0x21
-49.5
0x22
-53.5
0x23
-57.5
0x24
-61.5
0x25
-65.5
0x26
-69.5
0x27
-73.5
0x28-0x3F
Mute
——
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