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參數(shù)資料
| 型號(hào)： | PCM3794 |
| 元件分類： | Codec |
| 英文描述： | 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier |
| 中文描述： | 16位，低功耗立體聲音頻編解碼器麥克風(fēng)偏置，耳機(jī)，揚(yáng)聲器放大器和數(shù)字 |
| 文件頁數(shù)： | 27/63頁 |
| 文件大小： | 915K |
| 代理商： | PCM3794 |
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Packet Protocol
9
SDA
SCL
St
Start
17
8
18
9
18
9
Sp
Stop
Slave Address
ACK
DATA
ACK
DATA
ACK
Condition
Condition
R/W
Write Operation
Transmitter
M
M
M
S
S
M
S
M
Data Type
St
Slave Address
R/W
ACK
ACK
DATA
ACK
Sp
R/W:
ACK: Acknowledgement of a Byte if 0
DATA: 8 Bits (Byte)
Read Operation if 1; Otherwise, Write Operation
T0049-03
M: Master Device
St: Start Condition
M
DATA
Read Operation
Transmitter
M
M
M
S
M
S
M
M
Data Type
St
Slave Address
R/W
ACK
ACK
DATA
NACK
Sp
S
DATA
S: Slave Device
Sp: Stop Condition
Transmitter
M
M
Data Type
Slave Address
Reg Address
Write Data
R0002-01
M: Master Device S: Slave Device
St: Start Condition W: Write ACK: Acknowledge Sp: Stop Condition
M
M
S
M
St
W
ACK
Sp
S
ACK
M
S
ACK
PCM3793
PCM3794
SLES193A–AUGUST 2006–REVISED SEPTEMBER 2006
The master device must control packet protocol, which consists of start condition, slave address with read/write
bit, data if write or acknowledgement if read, and stop condition. The PCM3793/94 supports only slave receiver
and slave transmitter.
Figure 32. Basic I
2
C Framework
WRITE OPERATION
A master can write any PCM3793/94 registers using single access. The master sends a PCM3793/94 slave
address with a write bit, a register address, and the data. When undefined registers are accessed, the
PCM3793/94 does not send an acknowledgement.
Figure 33
shows a diagram of the write operation.
Figure 33. Framework for Write Operation
READ OPERATION
A master can read the PCM3793/94 register. The value of the register address is stored in an indirect index
register in advance. The master sends a PCM3793/94 slave address with a read bit after storing the register
address. Then the PCM3793/94 transfers the data which the index register points to.
Figure 34
shows a diagram
of the write operation.
27
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| PCM3794RHBRG4 | 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier |
| PCM3794RHBT | 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM-3794 | 制造商:AAEON 制造商全稱:AAEON 功能描述:PCI-104 2-slot PCMCIA Module /Three IEEE-1394 Port Daughter Board |
| PCM3794A | 制造商:BB 制造商全稱:BB 功能描述:16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier |
| PCM-3794-A10 | 制造商:AAEON Technology Inc 功能描述:PCI-104 2-SLOT PCMCIA (HOT SWAP) - Bulk |
| PCM-3794-A10-01 | 制造商:AAEON Technology Inc 功能描述:PCI-104 2-SLOT PCMCIA (HOT SWAP) & PCM-3594 IEEE-1394 3-PORT - Bulk |
| PCM3794ARHB | 制造商:Texas Instruments 功能描述:AUD CODEC 2ADC / 2DAC 16BIT 32QFN EP - Tape and Reel |
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