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| 型号： | MAX9867ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 43/55页 |
| 文件大小： | 0K |
| 描述： | IC STEREO AUD CODEC LP 32TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 立体声音频 |
| 数据接口： | I²C，串行 |
| 分辨率（位）： | 18 b |
| ADC / DAC 数量： | 2 / 2 |
| 三角积分调变： | 是 |
| 动态范围，标准 ADC / DAC (db)： | 85 / 90 |
| 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： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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MAX9867
Ultra-Low Power Stereo Audio Codec
48
______________________________________________________________________________________
The slave address with the R/W bit set to 0 indicates
that the master intends to write data to the MAX9867.
The MAX9867 acknowledges receipt of the address
byte during the master-generated 9th SCL pulse.
The second byte transmitted from the master config-
ures the MAX9867’s internal register address pointer.
The pointer tells the MAX9867 where to write the next
byte of data. An acknowledge pulse is sent by the
MAX9867 upon receipt of the address pointer data.
The third byte sent to the MAX9867 contains the data
that is written to the chosen register. An acknowledge
pulse from the MAX9867 signals receipt of the data byte.
The address pointer autoincrements to the next register
address after each received data byte. This autoincre-
ment feature allows a master to write to sequential regis-
ters within one continuous frame. Figure 13 illustrates
how to write to multiple registers with one frame. The
master signals the end of transmission by issuing a
STOP condition. Register addresses greater than 0x17
are reserved. Do not write to these addresses.
Read Data Format
Send the slave address with the R/W bit set to 1 to initi-
ate a read operation. The MAX9867 acknowledges
receipt of its slave address by pulling SDA low during
the 9th SCL clock pulse. A START command followed
by a read command resets the address pointer to reg-
ister 0x00.
The first byte transmitted from the MAX9867 is the con-
tent of register 0x00. Transmitted data is valid on the
rising edge of SCL. The address pointer autoincre-
ments after each read data byte. This autoincrement
feature allows all registers to be read sequentially within
one continuous frame. A STOP condition can be issued
after any number of read data bytes. If a STOP condi-
tion is issued followed by another read operation, the
first data byte to be read is from register 0x00.
The address pointer can be preset to a specific register
before a read command is issued. The master presets
the address pointer by first sending the MAX9867’s
slave address with the R/W bit set to 0 followed by the
register address. A REPEATED START condition is then
sent followed by the slave address with the R/W bit set
to 1. The MAX9867 then transmits the contents of the
specified register. The address pointer autoincrements
after transmitting the first byte.
The master acknowledges receipt of each read byte
during the acknowledge clock pulse. The master must
acknowledge all correctly received bytes except the
last byte. The final byte must be followed by a not
acknowledge from the master and then a STOP condi-
tion. Figure 14 illustrates the frame format for reading 1
byte from the MAX9867. Figure 15 illustrates the frame
format for reading multiple bytes from the MAX9867.
1 BYTE
AUTOINCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9867
B1 B0
B3 B2
B5 B4
B7 B6
A
0
ACKNOWLEDGE FROM MAX9867
R/W
S
A
1 BYTE
ACKNOWLEDGE FROM MAX9867
B1 B0
B3 B2
B5 B4
B7 B6
P
A
SLAVE ADDRESS
REGISTER ADDRESS
DATA BYTE 1
DATA BYTE n
Figure 13. Writing n Bytes of Data to the MAX9867
ACKNOWLEDGE FROM MAX9867
1 BYTE
AUTOINCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9867
NOT ACKNOWLEDGE FROM MASTER
A
P
A
0
ACKNOWLEDGE FROM MAX9867
R/W
S
R/W
REPEATED START
Sr
1
SLAVE ADDRESS
REGISTER ADDRESS
SLAVE ADDRESS
DATA BYTE
Figure 14. Reading 1 Byte of Data from the MAX9867
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9867EVKIT+ | 功能描述:音频 IC 开发工具 MAX9867 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 |
| 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 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 |
| MAX986ESA | 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX986ESA+ | 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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