參數(shù)資料
型號(hào)： ADAU1461WBCPZ-R7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 35/88頁(yè)
文件大?。?/td> 0K
描述： IC SIGMADSP 24BIT 96KHZ PLL 32
標(biāo)準(zhǔn)包裝： 1,500
系列： SigmaDSP®
類型： 音頻處理器
應(yīng)用： 車(chē)載音頻
安裝類型： 表面貼裝
封裝/外殼： 32-VFQFN 裸露焊盤(pán)，CSP
供應(yīng)商設(shè)備封裝： 32-LFCSP-VQ
包裝： 帶卷 (TR)
ADAU1461
Rev. 0 | Page 40 of 88
SERIAL DATA INPUT/OUTPUT PORTS
The flexible serial data input and output ports of the ADAU1461
can be set to accept or transmit data in 2-channel format or in
a 4-channel or 8-channel TDM stream to interface to external
ADCs or DACs. Data is processed in twos complement, MSB
first format. The left channel data field always precedes the right
channel data field in 2-channel streams. In TDM mode, Slot 0
to Slot 3 are in the first half of the audio frame, and Slot 4 to
Slot 7 are in the second half of the frame. The serial modes and
the position of the data in the frame are set in Register R15 to
Register R18 (serial port and converter control registers,
Address 0x4015 to Address 0x4018).
If the PLL of the ADAU1461 is not used, the serial data clocks
must be synchronous with the ADAU1461 master clock input.
The LRCLK and BCLK pins are used to clock both the serial
input and output ports. The ADAU1461 can be set as the master
or the slave in a system. Because there is only one set of serial
data clocks, the input and output ports must always be both
master or both slave.
Register R15 and Register R16 (serial port control registers,
Address 0x4015 and Address 0x4016) allow control of clock
polarity and data input modes. The valid data formats are I2S,
left-justified, right-justified (24-/20-/18-/16-bit), and TDM. In
all modes except for the right-justified modes, the serial port
inputs an arbitrary number of bits up to a limit of 24. Extra bits
do not cause an error, but they are truncated internally.
The serial port can operate with an arbitrary number of BCLK
transitions in each LRCLK frame. The LRCLK in TDM mode
can be input to the ADAU1461 either as a 50% duty cycle clock
or as a bit-wide pulse.
When the LRCLK is set as a pulse, a 47 pF capacitor should be
connected between the LRCLK pin and ground (see Figure 57).
This capacitor is necessary in both master and slave modes to
properly align the LRCLK signal to the serial data stream.
LRCLK
ADAU1461
BCLK
08
914
-07
1
47pF
Figure 57. LRCLK Capacitor Alignment, TDM Pulse Mode
In TDM 8 mode, the ADAU1461 can be a master for fS up to
48 kHz. Table 23 lists the modes in which the serial output port
can function.
Table 23. Serial Output Port Master/Slave Mode Capabilities
fS
2-Channel Modes (I2S, Left-
Justified, Right-Justified)
8-Channel TDM
48 kHz
Master and slave
96 kHz
Master and slave
Slave
Table 24 describes the proper configurations for standard audio
data formats.
Table 24. Data Format Configurations
Format
LRCLK Polarity (LRPOL)
LRCLK Mode
(LRMOD)
BCLK Polarity
(BPOL)
BCLK Cycles/Audio
Frame (BPF[2:0])
Data Delay from LRCLK
Edge (LRDEL[1:0])
I2S
(see Figure 58)
Frame begins on falling edge
50% duty cycle
Data changes
on falling edge
32 to 64
Delayed from LRCLK edge
by 1 BCLK
Left-Justified (see
Frame begins on rising edge
50% duty cycle
Data changes
on falling edge
32 to 64
Aligned with LRCLK edge
Right-Justified
(see Figure 60)
Frame begins on rising edge
50% duty cycle
Data changes
on falling edge
32 to 64
Delayed from LRCLK edge
by 8 or 16 BCLKs
TDM with Clock
(see Figure 61)
Frame begins on falling edge
50% duty cycle
Data changes
on falling edge
64 to 256
Delayed from start of word
clock by 1 BCLK
TDM with Pulse
(see Figure 62)
Frame begins on rising edge
Pulse
Data changes
on falling edge
64 to 256
Delayed from start of word
clock by 1 BCLK
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ADAU1461WBCPZ-RL 功能描述:IC SIGMADSP 24BIT 96KHZ PLL 32 RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:SigmaDSP® 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
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ADAU1462WBCPZ150RL 功能描述:32BIT SIGMADSP AUDIO 16K/48K 制造商:analog devices inc. 系列:* 包裝:帶卷（TR） 零件狀態(tài):在售 安裝類型:表面貼裝 封裝/外殼:72-VFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:72-LFCSP（10x10） 標(biāo)準(zhǔn)包裝:2,000
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ADAU1462WBCPZ300RL 功能描述:32BIT SIGMADSP AUDIO 16K/48K 制造商:analog devices inc. 系列:* 包裝:帶卷（TR） 零件狀態(tài):在售 安裝類型:表面貼裝 封裝/外殼:72-VFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:72-LFCSP（10x10） 標(biāo)準(zhǔn)包裝:2,000
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