参数资料
型号: MAX9856ETL+
厂商: Maxim Integrated Products
文件页数: 13/46页
文件大小: 0K
描述: IC CODEC AUDIO LP 40TQFN-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 音频编解码器
数据接口: 串行
分辨率(位): 18 b
ADC / DAC 数量: 2 / 2
三角积分调变:
S/N 比,标准 ADC / DAC (db): 77 / 91
动态范围,标准 ADC / DAC (db): 85 / 91
电压 - 电源,模拟: 1.71 V ~ 3.6 V
电压 - 电源,数字: 1.71 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(5x5)
包装: 管件
产品目录页面: 1392 (CN2011-ZH PDF)
MAX9856
Low-Power Audio CODEC with
DirectDrive Headphone Amplifiers
20
______________________________________________________________________________________
Status Registers
Status registers 0x00 and 0x01 are read-only registers
that report the status of various device functions. The
status register bits are cleared upon a read operation of
the status register and are set the next time the event
occurs. Table 2 lists the status registers bit location and
description.
REG
B7
B6
B5
B4
B3
B2
B1
B0
0x00
CLD
SLD
ULK
JKMIC
HPOCL
HPOCR
JDET
GPI
0x01
LSNS
JKSNS
HSDETL
HSDETR
JSDET
Table 2. Status Registers Bit Location
BIT
FUNCTION
CLD
Clip Detect Flag. Indicates that a signal has become clipped in the ADC.
SLD
Slew-Level Detect Flag. When volume or gain changes are made, the slewing circuitry smoothly steps through all
intermediate settings. When SLD is set high, all slewing has completed and the volume or gain is at its final value.
ULK
Digital PLL Unlock Flag. Indicates that the digital audio PLL for the DAC or ADC has become unlocked and digital
signal data is not reliable.
JKMIC
Jack Microphone Flag. Indicates JACKSNS has been pulled up to the MICBIAS voltage. The microphone bias
must be enabled for this bit to function properly.
HPOCL/
HPOCR
Headphone Output Left/Right Current Overload Flags. Indicate that the headphone output amplifiers have
exceeded the rated current.
JDET
Headset Configuration Change Flag. Indicates a change in JKMIC, LSNS, or JKSNS.
GPI
GPI State. Indicates the state of LRCLK_A when configured as a general-purpose input.
LSNS
Headphone Sense. LSNS is set when the internal pullup current forces the voltage at HPL to exceed AVDD - 0.4V.
This indicates headphone jack insertion or removal has occurred. HPMODE must be set to 00 and JDETEN set to
1 for this bit to function.
JKSNS
Jack Sense. JKSNS is set when the internal pullup current forces the voltage on JACKSNS to exceed AVDD - 0.4V.
This indicates jack insertion or removal has occurred. JDETEN must be set for this bit to function.
Load Impedance Sense. Indicates the approximate load connected to HPR, HPL, or JACKSNS. These bits are
updated once each time the appropriate EN bits are set high and cause an undefeatable hardware interrupt.
BITS
HEADPHONE OR JACKSNS LOAD
00
200
Ω < load < open
01
50
Ω < load < 200Ω
10
0 < load < 50
Ω
HSDETL,
HSDETR,
JSDET
11
Idle state
Status Register Bit Description
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MAX9856ETL/V+ 功能描述:接口—CODEC Low-Power Audio Codec With Directdrive. Headphone Amplifiers 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
MAX9856ETL/V+T 功能描述:接口—CODEC Low-Power Audio Codec With Directdrive. Headphone Amplifiers 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
MAX9856ETL+ 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp 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
MAX9856ETL+T 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp 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
MAX9856EVKIT+ 功能描述:音频 IC 开发工具 Evaluation Kit for the MAX9856 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