參數(shù)資料
型號: AD1953YSTZ
廠商: Analog Devices Inc
文件頁數(shù): 19/36頁
文件大?。?/td> 0K
描述: IC DSP DAC AUDIO3CH/26BIT 48LQFP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 1
系列: SigmaDSP®
位數(shù): 26
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 3
電壓電源: 模擬和數(shù)字
功率耗散(最大): 540mW
工作溫度: -40°C ~ 105°C
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
輸出數(shù)目和類型: 6 電壓,單極
采樣率(每秒): 48k
REV. 0
AD1953
–26–
Table VIII. Parameter RAM Read/Write Format (Single Address)
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
00000, R/Wb, Adr[9:8]
Adr[7:0]
00, Param[21:16]
Param[15:8]
Param[7:0]
ADR
Byte 5 Byte 8
Byte 6 Byte 9
Byte 7 Byte 10
ADR + 1 ADR + 2
Table IX. Parameter RAM Block Read/Write Format (Burst Mode)
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
00000, R/Wb, Adr[9:8]
Adr[7:0]
00, Param[21:16]
Param[15:8]
Param[7:0]
Table X. Program RAM Read/Write Format (Single Address)
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
00000, R/Wb, Adr[9:8] Adr[7:0]
00000, Prog[34:32]
Prog[31:24]
Prog[23:16]
Prog[15:8]
Prog[7:0]
Table XI. Program RAM Block Read/Write Format (Burst Mode)
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
00000, R/Wb, Adr[9:8]Adr[7:0] 00000, Prog[34:32] Prog[31:24] Prog[23:16] Prog[15:8] Prog[7:0]
ADR
Byte 7
Byte 12
Byte 8
Byte 13
Byte 9
Byte 14
Byte 10 Byte 15
Byte 11 Byte 16
ADR + 1 ADR + 2
Table XII. SPI Control Register 1 Write Format
Byte 0
Byte 1
Byte 2
Byte 3
00000, R/Wb, Adr[9:8]
Adr[7:0]
00, Bit[13:8]
Bit[7:0]
Table XIII. SPI Control Register 1 Read Format
Byte 0
Byte 1
Byte 2
00000, R/Wb, Adr[9:8]
Adr[7:0]
000000, Bit[1:0]
Table XIV. SPI Control Register 2 Write Format
Byte 0
Byte 1
Byte 2
Byte 3
00000, R/Wb, Adr[9:8]
Adr[7:0]
000000, Bit[9:8]
Bit[7:0]
Table XV. SPI Volume Register Write Format
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
000000, Adr[9:8]
Adr[7:0]
00, Volume[21:16]
Volume[15:8]
Volume[7:0]
SPI READ/WRITE DATA FORMATS
The read/write formats of the SPI port are designed to be byte-
oriented. This allows for easy programming of common
microcontroller chips to fit into a byte-oriented format; 0s are
appended to the data fields to extend the data-word to the next
multiple of eight bits. For example, 22-bit words written to the
SPI parameter RAM are appended with two leading zeros to
reach 24 bits (three bytes), and 35-bit words written to the
program RAM are appended with five zeros to reach 40 bits
(five bytes). These zero-extended data fields are appended to
a 2-byte field consisting of a read/write bit and a 10-bit address.
The SPI port knows how many data bytes to expect based on
the address that is received in the first two bytes.
The total number of bytes for a single-location SPI write command
can vary from four bytes (for a control register write), to seven
bytes (for a program RAM write). Block writes may be used to
fill contiguous locations in program RAM or parameter RAM.
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