参数资料
型号: MAX9880AETM+
厂商: Maxim Integrated Products
文件页数: 43/70页
文件大小: 0K
描述: IC CODEC AUDIO STEREO 48TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
类型: 立体声音频
数据接口: I²C,I²S,串行,SPI?
ADC / DAC 数量: 2 / 2
三角积分调变:
动态范围,标准 ADC / DAC (db): 82 / 96
电压 - 电源,模拟: 1.65 V ~ 1.95 V
电压 - 电源,数字: 1.65 V ~ 1.95 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(6x6)
包装: 管件
MAX9880A
Low-Power, High-Performance
Dual I2S Stereo Audio Codec
48
______________________________________________________________________________________
Offset Calibration Procedure
Perform before the first DC measurement is taken after
applying power to the MAX9880A.
1) Enable the AUX input (AUXEN = 1).
2) Enable the offset calibration (AUXCAL = 1).
3) Wait the appropriate time (see Table 17).
4) Complete calibration (AUXCAL = 0).
Gain Calibration Procedure
Perform the first time a DC measurement is taken after
applying power to the MAX9880A or if the temperature
changes significantly.
1) Enable the AUX input (AUXEN = 1).
2) Start gain calibration (AUXGAIN = 1).
3) Wait the appropriate time (see Table 17).
4) Freeze the measurement results (AUXCAP = 1).
5) Read AUX and store the value in memory to correct
all future measurements (k = AUX[15:0], k is typical-
ly 19,500).
6) Complete calibration (AUXGAIN = AUXCAP = 0).
DC Measurement Procedure
Perform after offset and gain calibration are complete.
1) Enable the AUX input (AUXEN = 1).
2) Wait the appropriate time (see Table 17).
3) Freeze the measurement results (AUXCAP = 1).
4) Read AUX and correct with the gain calibration value
5) Complete measurement (AUXCAP = 0).
Complete DC Measurement Example
fMCLK = 13MHz, slave mode, BCLK, and LRCLK are
not externally supplied.
1) Configure the digital audio interface for fs = 48kHz
(PSCLK = 01, FREQ1 = 0x0, PLL = 0, NI = 0x5ABE,
MAS = 0).
2) Disable jack sense (JDETEN = 0).
3) Enable the left and right ADC; take the MAX9880A
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 is complete.
V
AUX
k
AUX =
0 738
15 0
.
[: ]
.
LRCLK (kHz)
WAIT TIME (ms)
48
40
44.1
44
32
60
24
80
22.05
90
16
120
12
160
11.025
175
8
240
Table 17. AUX ADC Wait Times
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MAX9880AETM+ 功能描述:接口—CODEC Stereo Audio CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel
MAX9880AETM+T 功能描述:接口—CODEC Stereo Audio CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel
MAX9880AEVKIT# 功能描述:音频 IC 开发工具 MAX9880A Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V
MAX9880AEVKIT+ 功能描述:音频 IC 开发工具 MAX9880A Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V
MAX9880AEWM+T 功能描述:接口—CODEC Stereo Audio CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel