AD1953YSTRL7 Analog Devices Inc, AD1953YSTRL7 Datasheet - Page 26

• Manufacturer Part Number: AD1953YSTRL7
• Description: IC DSP DAC AUDIO3CH/26BIT 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SigmaDSP®r

Specifications of AD1953YSTRL7

• Rohs Status: RoHS non-compliant
• Number Of Bits: 26
• Data Interface: Serial
• Number Of Converters: 3
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 540mW
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• For Use With: EVAL-AD1953EBZ - BOARD EVAL FOR AD1953 3CH 24BIT
• Settling Time: -

AD1953
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
Byte 0
00000, R/Wb, Adr[9:8]
Byte 0
00000, R/Wb, Adr[9:8] Adr[7:0]
Byte 0
00000, R/Wb, Adr[9:8]
Byte 0
00000, R/Wb, Adr[9:8]
Byte 0
00000, R/Wb, Adr[9:8]
Byte 0
000000, Adr[9:8]
Byte 0
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]
Byte 0
00000, R/Wb, Adr[9:8]
Byte 1
Byte 1
Table IX. Parameter RAM Block Read/Write Format (Burst Mode)
Byte 1
Adr[7:0]
Byte 1
Adr[7:0]
Byte 1
Adr[7:0]
Byte 1
Adr[7:0]
Table XI. Program RAM Block Read/Write Format (Burst Mode)
Table VIII. Parameter RAM Read/Write Format (Single Address)
Table X. Program RAM Read/Write Format (Single Address)
Byte 1
Adr[7:0]
Byte 2
00000, Prog[34:32]
Byte 2
Table XIV. SPI Control Register 2 Write Format
Table XIII. SPI Control Register 1 Read Format
Table XII. SPI Control Register 1 Write Format
Table XV. SPI Volume Register Write Format
Byte 2
00, Param[21:16]
Byte 2
00, Param[21:16]
Byte 2
00, Volume[21:16]
Byte 1
Adr[7:0]
Byte 3
Byte 3
Prog[31:24]
–26–
Byte 2
00, Bit[13:8]
Byte 2
000000, Bit[9:8]
(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.
ADR
Byte 4
Byte 3
Param[15:8]
Byte 4
Prog[23:16]
ADR
Byte 3
Param[15:8]
Byte 3
Volume[15:8]
Byte 5
Byte 4
Param[7:0]
Byte 5
Prog[15:8]
Byte 6
Byte 2
000000, Bit[1:0]
Byte 3
Byte 3
Bit[7:0]
Bit[7:0]
Byte 4
Param[7:0]
Byte 7 Byte 12
Byte 8 Byte 13
Byte 9 Byte 14
Byte 10 Byte 15
Byte 11 Byte 16
ADR + 1 ADR + 2
ADR + 1 ADR + 2
Byte 5 Byte 8
Byte 6 Byte 9
Byte 7 Byte 10
Byte 4
Volume[7:0]
Byte 6
Prog[7:0]
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