max5290beudt Maxim Integrated Products, Inc., max5290beudt Datasheet - Page 19

• Manufacturer Part Number: max5290beudt
• Description: Buffered, Fast-settling, Dual, 12-/10-/8-bit, Voltage-output Dacs
• Manufacturer: Maxim Integrated Products, Inc.

Tables 2a, 2b, and 2c provide all of the serial-interface
programming commands for the MAX5290–MAX5295.
Table 2a shows the basic DAC programming com-
mands, Table 2b gives the advanced-feature program-
ming commands, and Table 2c provides the 24-bit
read commands. Figures 3 and 4 illustrate the serial-
interface diagrams for read and write operations.
Figure 3. MICROWIRE and SPI (CPOL = 0, CPHA = 0 or CPOL = 1, CPHA = 1) DAC Writes
Figure 4. DSP and SPI (CPOL = 0, CPHA = 1 or CPOL = 1, CPHA = 0) DAC Writes
Serial-Interface Programming Commands
SCLK
SCLK
SCLK
SCLK
MICROWIRE OR SPI (CPOL = 0, CPHA = 0) 8-BIT CONTROL DATA OR 12-BIT DAC DATA WRITE:
SPI (CPOL = 1, CPHA = 1) 8-BIT CONTROL DATA OR 12-BIT DAC DATA WRITE:
DIN
DIN
DSP OR SPI (CPOL = 0, CPHA = 1) 8-BIT CONTROL DATA OR 12-BIT DAC DATA WRITE:
DSP OR SPI (CPOL = 1, CPHA = 0) 8-BIT CONTROL DATA OR 12-BIT DAC DATA WRITE:
DIN
DIN
CS
CS
CS
CS
Buffered, Fast-Settling, Dual, 12-/10-/8-Bit,
TCLK, SCLK, OR CLKX
MICROWIRE
______________________________________________________________________________________
C3
C3
DSP
C3
C3
TFS OR FSX
DT OR DX
C2
C2
C2
C2
V
V
SO
I/O
SK
DD
SS
C1
C1
C1
C1
V
DD
C0
C0
C0
C0
CS MUST REMAIN LOW BETWEEN BYTES ON A 16-BIT WRITE OPERATION
CS MUST REMAIN LOW BETWEEN BYTES ON A 16-BIT WRITE OPERATION
CS MUST REMAIN LOW BETWEEN BYTES ON A 16-BIT WRITE OPERATION
CS MUST REMAIN LOW BETWEEN BYTES ON A 16-BIT WRITE OPERATION
DV
DSP
SCLK
DIN
CS
DGND
DSP
SCLK
DIN
CS
D11
D11
D11
D11
DD
MAX5290–
MAX5290–
MAX5295
MAX5295
D10
D10
D10
D10
D9
D9
D9
D9
D8
D8
D8
D8
The MAX5290–MAX5295 contain a 16-bit shift register
that is followed by a 12-bit input register and a 12-bit
DAC register for each channel (see the Functional
Diagrams). Tables 3, 4, and 5 highlight a few of the com-
mands for the loading of the input and DAC registers.
See Table 2a for all DAC programming commands.
D7
D7
D7
D7
Voltage-Output DACs
D6
D6
D6
D6
SPI OR QSPI
SPI OR QSPI
D5
D5
D5
D5
Loading Input and DAC Registers
SS OR I/O
SS OR I/O
D4
D4
MOSI
MOSI
D4
D4
SCK
V
SCK
V
DD
SS
COMMAND TAKES EFFECT HERE
COMMAND TAKES EFFECT HERE
COMMAND TAKES EFFECT HERE
COMMAND TAKES EFFECT HERE
ONLY IF SCLK COUNT = N
ONLY IF SCLK COUNT = N
ONLY IF SCLK COUNT = N
ONLY IF SCLK COUNT = N
D3
D3
V
D3
D3
DD
D2
D2
D2
D2
DV
DSP
SCLK
DIN
CS
DGND
DSP
SCLK
DIN
CS
DD
D1
D1
D1
D1
MAX5290–
MAX5290–
MAX5295
MAX5295
✕
✕
✕
✕
16
16
16
16
D0
D0
D0
D0
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