參數(shù)資料
型號： MAX9867ETJ+
廠商： Maxim Integrated Products
文件頁數(shù)： 32/55頁
文件大小： 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： 是
動態(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
38
______________________________________________________________________________________
Table 11. Playback Volume Registers (continued)
Microphone Inputs
Two differential microphone inputs and a low-noise micro-
phone bias for powering the microphones are provided
by the MAX9867. In typical applications, the left micro-
phone records a voice signal and the right microphone
records a background noise signal. In applications that
require only one microphone, use the left microphone
input and disable the right ADC. The microphone signals
are amplified by two stages of gain and then routed to
the ADCs. The first stage offers selectable 0dB, 20dB,
or 30dB settings. The second stage is a programmable
gain amplifier (PGA) adjustable from 0dB to 20dB in
1dB steps. Zero-crossing detection is included on the
PGA to minimize zipper noise while making gain
changes. See Figure 5 for a detailed diagram of the
microphone input structure. Table 12 is the microphone
input register.
Table 12. Microphone Input Registers
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER
ADDRESS
Left Microphone Gain
0
PALEN
PGAML
0x12
Right Microphone Gain
0
PAREN
PGAMR
0x13
BITS
FUNCTION
VOLLM/VOLRM
Left/Right Playback Mute
VOLLM and VOLRM mute both the DAC and line input audio signals.
0 = Audio playback is unmuted.
1 = Audio playback is muted
Note: VSEN has no effect on the mute function. When VOLLM or VOLRM is set, the output is muted
immediately (ZDEN = 1) or at the next zero-crossing (ZDEN = 0).
Left/Right Playback Volume
VOLL and VOLR control the playback volume for both the DAC and line input audio signals.
SETTING
GAIN (dB)
SETTING
GAIN (dB)
SETTING
GAIN (dB)
0x00
+6
0x0E
-5
0x1C
-42
0x01
+5.5
0x0F
-6
0x1D
-46
0x02
+5
0x10
-8
0x1E
-50
0x03
+4.5
0x11
-10
0x1F
-54
0x04
+4
0x12
-12
0x20
-58
0x05
+3.5
0x13
-14
0x21
-62
0x06
+3
0x14
-16
0x22
-66
0x07
+2
0x15
-18
0x23
-70
0x08
+1
0x16
-20
0x24
-74
0x09
0
0x17
-22
0x25
-78
0x0A
-1
0x18
-26
0x26
-82
0x0B
-2
0x19
-30
0x27
-84
0x0C
-3
0x1A
-34
0x0D
-4
0x1B
-38
0x28 to 0x3F
MUTE
VOLL/VOLR
Note: Gain settings apply when the headphone amplifier is configured in differential mode. In the single-
ended and capacitorless modes, the actual gain is 5dB lower for each setting.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9867ETJ+ 功能描述:接口—CODEC Stereo Audio CODEC for Portable Devices RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
MAX9867ETJ+T 功能描述:接口—CODEC Stereo Audio CODEC for Portable Devices RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
MAX9867EVKIT+ 功能描述:音頻 IC 開發(fā)工具 MAX9867 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
MAX9867EWV+ 制造商:Maxim Integrated Products 功能描述:LOW-POWER, STEREO AUDIO CODEC - Rail/Tube
MAX9867EWV+T 功能描述:接口—CODEC Stereo Audio CODEC for Portable Devices RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
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