參數(shù)資料
型號(hào): MAX9867ETJ+
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 29/55頁(yè)
文件大?。?/td> 0K
描述: IC STEREO AUD CODEC LP 32TQFN-EP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 60
類型: 立體聲音頻
數(shù)據(jù)接口: I²C,串行
分辨率(位): 18 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變:
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) ADC / DAC (db): 85 / 90
電壓 - 電源,模擬: 1.65 V ~ 1.95 V
電壓 - 電源,數(shù)字: 1.65 V ~ 1.95 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-TQFN-EP(5x5)
包裝: 托盤
MAX9867
Ultra-Low Power Stereo Audio Codec
______________________________________________________________________________________
35
Digital Gain Control
The MAX9867 includes digital gain adjustment for the
playback and record paths. Independent gain adjust-
ment is provided for the two record channels. Sidetone
gain adjustment is also provided to set the sidetone
level relative to the playback level. Table 9 is the digital
gain registers.
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER
ADDRESS
Sidetone
DSTS
0
DVST
0x0B
DAC Level
0
DACM
DACG
DACA
0x0C
ADC Level
AVL
AVR
0x0D
BITS
FUNCTION
DSTS
Digital Sidetone Source Mixer
00 = No sidetone is selected.
01 = Left ADC
10 = Right ADC
11 = Left + right ADC
Digital Sidetone Level Control
All gain settings are relative to the ADC input voltage.
Differential Headphone Output Mode
SETTING
GAIN (dB)
SETTING
GAIN (dB)
SETTING
GAIN (dB)
0x00
Off
0x0B
-20
0x16
-42
0x01
0
0x0C
-22
0x17
-44
0x02
-2
0x0D
-24
0x18
-46
0x03
-4
0x0E
-26
0x19
-48
0x04
-6
0x0F
-28
0x1A
-50
0x05
-8
0x10
-30
0x1B
-52
0x06
-10
0x11
-32
0x1C
-54
0x07
-12
0x12
-34
0x1D
-56
0x08
-14
0x13
-36
0x1E
-58
0x09
-16
0x14
-38
0x1F
-60
0x0A
-18
0x15
-40
Capacitorless and Single-Ended Headphone Output Mode
SETTING
GAIN (dB)
SETTING
GAIN (dB)
SETTING
GAIN (dB)
0x00
Off
0x0B
-25
0x16
-47
0x01
-5
0x0C
-27
0x17
-49
0x02
-7
0x0D
-29
0x18
-51
0x03
-9
0x0E
-31
0x19
-53
0x04
-11
0x0F
-33
0x1A
-55
0x05
-13
0x10
-35
0x1B
-57
0x06
-15
0x11
-37
0x1C
-59
0x07
-17
0x12
-39
0x1D
-61
0x08
-19
0x13
-41
0x1E
-63
0x09
-21
0x14
-43
0x1F
-65
DVST
0x0A
-23
0x15
-45
DACM
DAC Mute Enable
0 = No mute
1 = Mute
Table 9. Digital Gain Registers
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