參數(shù)資料
型號(hào)： MAX9867ETJ+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 36/55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： 是
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
______________________________________________________________________________________
41
Complete DC Measurement Example
MCLK = 13MHz, slave mode, BCLK and LRCLK not
externally supplied:
1) Configure the digital audio interface for fS = 48kHz
(PSCLK = 01, FREQ = 0x0, PLL = 0, NI = 0x5ABE,
MAS = 0).
2) Disable JACKSNS (JDETEN = 0).
3) Enable the left and right ADC; take the MAX9867 out
of shutdown (ADLEN = ADREN = SHDN = 1).
4) Calibrate the offset:
a. Enable the AUX input (AUXEN = 1).
b. Enable the offset calibration (AUXCAL = 1).
c. Wait 40ms.
d. Complete calibration (AUXCAL = 0).
5) Calibrate the gain:
a. Start gain calibration (AUXGAIN = 1).
b. Wait 40ms.
c. Freeze the measurement results (AUXCAP = 1).
d. Read AUX and store the value in memory to cor-
rect all future measurements (k = AUX[15:0]).
e. Complete calibration (AUXGAIN = AUXCAP =
AUXEN = 0).
6) Measure the voltage on JACKSNS/AUX:
a. Enable the AUX input (AUXEN = 1).
b. Wait 40ms.
c. Freeze the measurement results (AUXCAP = 1).
d. Read AUX and correct with the gain calibration
value.
e. Complete measurement (AUXCAP = 0).
7) DC measurement complete.
Table 14. ADC Input Register
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER
ADDRESS
ADC Input
MXINL
MXINR
AUXCAP
AUXGAIN
AUXCAL
AUXEN
0x14
BITS
FUNCTION
MXINL/MXINR
Left/Right ADC Audio Input Mixer
00 = No input is selected.
01 = Left/right analog microphone
10 = Left/right line input
11 = Left/right analog microphone + line input
Note: If the right-line input is disabled, then the left-line input is connected to both mixers. Enabling the
left and right digital microphones disables the left and right audio mixers, respectively. See DIGMICL/
DIGMICR in Table 15 for more details.
AUXCAP
Auxiliary Input Capture
0 = Update AUX with the voltage at JACKSNS/AUX.
1 = Hold AUX for reading.
AUXGAIN
Auxiliary Input Gain Calibration
0 = Normal operation
1 = The input buffer is disconnected from JACKSNS/AUX and connected to an internal voltage reference.
While in this mode, read the AUX register and store the value. Use the stored value as a gain
calibration factor, K, on subsequent readings.
AUXCAL
Auxiliary Input Offset Calibration
0 = Normal operation
1 = JACKSNS/AUX is disconnected from the input and the ADC automatically calibrates out any internal
offsets.
AUXEN
Auxiliary Input Enable
0 = Use JACKSNS/AUX for jack detection.
1 = Use JACKSNS/AUX for DC measurements.
Note: For AUXEN = 1, set MXINR = 00, ADLEN = 1, and ADREN = 1.
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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(píng)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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