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| 型号： | MAX9856ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/46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： | 是 |
| 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) |
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MAX9856
Low-Power Audio CODEC with
DirectDrive Headphone Amplifiers
______________________________________________________________________________________
21
Interrupt Enables
Hardware interrupts are reported on the open-drain
IRQ
pin. When an interrupt occurs,
IRQ remains low until the
interrupt is serviced by reading status register 0x00. If a
flag is set, it is reported as a hardware interrupt only if
the corresponding interrupt enable is set. Each bit
enables interrupts for the status flag in the respective bit
location in register 0x00. Table 3 lists the interrupt enable
bit locations and description.
REG
B7
B6
B5
B4
B3
B2
B1
B0
0x02
ICLD
ISLD
IULK
0
IHPOCL
IHPOCR
IJDET
IGPI
Table 3. Interrupt Enable Bit Locations
REG
B7
B6
B5
B4
B3
B2
B1
B0
0x03
0
PSCLK
MAS
BSEL
Table 4. Clock Control Register
BITS
FUNCTION
PSCLK
MCLK Prescaler. Set PSCLK to appropriately divide down MCLK to a usable frequency:
000—Disable clock input
001—10MHz
≤ MCLK ≤ 16MHz (PCLK = MCLK/1)
010—16MHz
≤ MCLK ≤ 20MHz (PCLK = MCLK/1)
011—20MHz
≤ MCLK ≤ 32MHz (PCLK = MCLK/2)
100—32MHz
≤ MCLK ≤ 40MHz (PCLK = MCLK/2)
101—40MHz
≤ MCLK ≤ 60MHz (PCLK = MCLK/4)
110—Reserved
111—Reserved
MAS
Master Mode. Selects between master and slave operation:
0 = Slave mode (BCLK, LRCLK_D, and LRCLK_A are inputs)
1 = Master mode (BCLK, LRCLK_D, and LRCLK_A are outputs)
BSEL
BCLK Select. Configures BCLK when operating in master mode. Set BSEL to be a sufficiently high frequency to
fully clock in all data bits for both the DAC and ADC, if operating at different sample rates:
000—Off
001—Off
010—BCLK = 48 x LRCLK_D (recommended if the DAC and ADC operate at the same rate)
011—BCLK = 48 x LRCLK_A
100—BCLK = PCLK/2 (recommended if the DAC and ADC are not operating at the same rate)
101—BCLK = PCLK/4
110—BCLK = PCLK/8
111—BCLK = PCLK/16
Clock Control Register Bit Description
Clock Control
The MAX9856 can work with a master clock supplied
from any system clock (MCLK) within the range of
10MHz to 60MHz range. A clock prescaler divides by
1, 2, or 4 to create an internal clock (PCLK) in the
10MHz to 20MHz range.
There are two clock-generation circuits that operate
independently for the ADC and DAC path, allowing the
ADC and DAC to be operated at different sample rates.
BCLK services the LRCLK signals for both the ADC and
DAC. When the ADC and DAC operate at different
LRCLK rates, BCLK should be set appropriately for the
higher sample rate. The number of clock cycles per
frame must be greater than or equal to the configured
bit depth.
The MAX9856 digital audio interface can operate in
either master or slave mode. In master mode, the
MAX9856 generates the BCLK and LRCLK signals,
which control the data flow on the digital audio inter-
face. In slave mode, the external master device gener-
ates the BCLK and LRCLK signals. See Table 4.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
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