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參數(shù)資料
| 型號(hào)： | MAX9851EVCMODU |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 編解碼器 |
| 英文描述： | MAX9851評(píng)估板/評(píng)估系統(tǒng) |
| 中文描述： | PCM CODEC |
| 文件頁數(shù)： | 60/73頁 |
| 文件大?。?/td> | 1357K |
| 代理商： | MAX9851EVCMODU |
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MAX9851/MAX9853
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
______________________________________________________________________________________
63
Read Data Format
Send the slave address with the R/W bit set to 1 to initi-
ate a read operation. The MAX9851/MAX9853 acknowl-
edge receipt of its slave address by pulling SDA low
during the ninth SCL clock pulse. A START command
followed by a read command resets the address pointer
to register 0x00. The first byte transmitted from the
MAX9851/MAX9853 will be the contents of register 0x00.
Transmitted data is valid on the rising edge of the mas-
ter-generated serial clock (SCL). The address pointer
autoincrements after each read data byte. This autoin-
crement feature allows all registers to be read sequen-
tially within one continuous frame. A STOP condition can
be issued after any number of read data bytes. If a STOP
condition is issued followed by another read operation,
the first data byte to be read will be from register 0x00
and subsequent reads will autoincrement the address
pointer until the next STOP condition. The address point-
er can be preset to a specific register before a read
command is issued. The master presets the address
pointer by first sending the MAX9851/MAX9853’s slave
address with the R/W bit set to 0 followed by the register
address. A REPEATED START condition is then sent fol-
lowed by the slave address with the R/W bit set to 1. The
MAX9851/MAX9853 transmit the contents of the speci-
fied register. The address pointer auto-increments after
transmitting the first byte. Attempting to read from regis-
ter addresses higher than 0x1F results in repeated reads
of 0x1F. Note that 0x1C to 0x1F are reserved registers.
The master acknowledges receipt of each read byte dur-
ing 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 acknowl-
edge from the master and then a STOP condition. Figure
15 illustrates the frame format for reading one byte from
the MAX9851/MAX9853. Figure 16 illustrates the frame
format for reading multiple bytes from the MAX9851/
MAX9853.
ACKNOWLEDGE FROM MAX9851/
MAX9853
1 BYTE
AUTO-INCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9851/
MAX9853
NOT ACKNOWLEDGE FROM MASTER
A
P
A
0
ACKNOWLEDGE FROM MAX9851/
MAX9853
R/W
SA
R/W
REPEATED START
Sr
1
SLAVE ADDRESS
REGISTER ADDRESS
SLAVE ADDRESS
DATA BYTE
Figure 15. Reading One Indexed Byte of Data from the MAX9851/MAX9853
ACKNOWLEDGE FROM MAX9851/
MAX9853
1 BYTE
AUTO-INCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9851/
MAX9853
A
AP
0
ACKNOWLEDGE FROM MAX9851/
MAX9853
R/W
SA
R/W
REPEATED START
Sr
1
SLAVE ADDRESS
REGISTER ADDRESS
SLAVE ADDRESS
DATA BYTE
Figure 16. Reading n-Bytes of Indexed Data from the MAX9851/MAX9853
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9851EVKIT | 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit/Evaluation System for the MAX9851 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 |
| MAX9853ETM+ | 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp 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 |
| MAX9853ETM+T | 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp 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 |
| MAX9853EVCMODU | 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit/Evaluation System for the MAX9853 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 |
| MAX9853EVKIT | 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit/Evaluation System for the MAX9853 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 |
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