參數(shù)資料
型號(hào)： PCM3794
元件分類(lèi)： 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(yè)數(shù)： 25/63頁(yè)
文件大小： 915K
代理商： PCM3794
www.ti.com
THREE-WIRE INTERFACE (SPI, MODE (PIN 28) = LOW)
All write operations for the serial control port use 16-bit data words.
Figure 29
shows the control data word
format. The most significant bit must be 0. There are seven bits, labeled IDX[6:0], that set the register address
for the write operation. The least significant eight bits, D[7:0], contain the data to be written to the register
specified by IDX[6:0].
MSB
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
D7
D6
D5
D4
D3
D2
D1
D0
LSB
Register Index (or Address)
Register Data
R0001-01
MC
MS
MD
16 Bits
(1) Single Write Operation
MSB
LSB
MSB
(2) Continuous Write Operation
MSB
8 Bits x N Frames
MC
MS
MD
N Frames
T0012-03
LSB MSB
LSB MSB
LSB
MSB
LSB
Register Index
8 Bits
Register (N) Data
Register (N+1) Data
Register (N+2) Data
PCM3793
PCM3794
SLES193A–AUGUST 2006–REVISED SEPTEMBER 2006
Figure 30
shows the functional timing diagram for writing to the serial control port. To write the data into the
mode register, the data is clocked into an internal shift register on the rising edge of the MC clock. The serial
data should change on the falling edge of MC clock and should be LOW during write mode. The rising edge of
MS should be aligned with the falling edge of the last MC clock pulse in the 16-bit frame. MC can run
continuously between transactions while MS is in the LOW state.
Figure 29. Control Data Word Format for MD
Figure 30. Register Write Operation
25
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相關(guān)PDF資料
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PCM3794RHB 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(chēng):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(chēng):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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