參數(shù)資料
型號： ADAU1401AWBSTZ
廠商： Analog Devices Inc
文件頁數(shù)： 21/52頁
文件大小： 0K
描述： IC AUDIO PROC 28/56BIT 48LQFP
標(biāo)準包裝： 1
系列： SigmaDSP®
類型： 音頻處理器
應(yīng)用： 監(jiān)控器，電視
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 托盤
ADAU1401A
Rev. A | Page 28 of 52
The writeback function writes data from the ADAU1401A
interface registers to the second page of the self-boot EEPROM,
EEPROM Address 0x20 to EEPROM Address 0x3F. Starting at
EEPROM Address 0x1A (so that the interface register data
begins at EEPROM Address 0x20), the EEPROM should be
programmed with six bytes—the message byte (0x01), two
length bytes, the chip address (0x00), and the 2-byte subaddress
for the interface registers (0x08, 0x00). There must be a
message to the DSP core control register to enable writing to
the interface registers prior to the interface register data in the
EEPROM. This should be stored in EEPROM Address 0x00.
No-op messages (0x03) can be used between messages to
ensure that these conditions are met.
The ADAU1401A writes to EEPROM Chip Address 0xA0. The
LSBs of the addresses of some EEPROMs are pin configurable; in
most cases, these pins should be tied low to set the address to 0xA0.
The maximum number of bytes that is written back from the
ADAU1401A is 35 (eight 4-byte interface registers plus three
bytes of EEPROM-addressing overhead). With SCL at 384 kHz,
the writeback operation takes approximately 73 μs to complete
after being triggered. Ensure that sufficient power is available to
the system to allow enough time for a writeback to complete,
especially if the WB signal is triggered from a decreasing power
supply voltage.
Table 20. EEPROM Message Types
Message ID
Message Type
Following Bytes
0x00
End
None
0x01
Write
Two bytes indicating the message length followed by an
appropriate number of data bytes
0x02
Delay
Two bytes for delay
0x03
No operation executed
None
0x04
Set multiple writebacks
None
0x05
Set WB to be falling-edge sensitive
None
0x06
End and wait for writeback
None
0x01
0x00
0x05
0x00
0x08
0x1C
0x00
0x40
WRITE
LENGTH
DEVICE
ADDRESS
CORE CONTROL REGISTER
ADDRESS
CORE CONTROL REGISTER
DATA
0x01
0x61
0x00
0x04
0x00
WRITE
LENGTH
DEVICE
ADDRESS
PROGRAM RAM ADDRESS
PROGRAM RAM DATA
0x00
0x01
0x00
0xE8
0x01
PROGRAM RAM DATA
0x00
0x01
0x00
0x08
0x00
PROGRAM RAM DATA (CONTINUES FOR 332 MORE BYTES)
0x00
INTERFACE REGISTER DATA
0x00
INTERFACE REGISTER DATA
0x00
INTERFACE REGISTER DATA
0x00
INTERFACE REGISTER DATA
0x03
NO-OP BYTES
0x03
NO-OP BYTES
0x03
0x01
0x00
0x23
0x00
0x08
0x00
LENGTH
DEVICE
ADDRESS
INTERFACE REGISTER
ADDRESS
WRITE
NO-OP BYTES
0
85
06
-0
39
Figure 28. EEPROM Data Example
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參數(shù)描述
ADAU1401AWBSTZ-RL 功能描述:IC AUDIO PROC 28/56BIT 48LQFP 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 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
ADAU1401YSTZ 功能描述:IC AUDIO PROC 28/56BIT 48LQFP 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 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
ADAU1401YSTZ-RL 功能描述:IC AUDIO PROC 28/56BIT 48LQFP 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 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
ADAU1421YSTZ 制造商:Analog Devices 功能描述:
ADAU1421YSTZ-REEL 制造商:Analog Devices 功能描述:
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