MAX5104CEE MAXIM [Maxim Integrated Products], MAX5104CEE Datasheet - Page 7

• Manufacturer Part Number: MAX5104CEE
• Description: Low-Power, Dual, Voltage-Output, 12-Bit DAC with Serial Interface
• Manufacturer: MAXIM [Maxim Integrated Products]

allowing the MAX5104 to recall the output state prior to
entering power-down when returning to normal mode.
Exit power-down by recalling the previous condition or
by updating the DAC with new information. When
returning to normal operation (exiting power-down),
wait 20µs for output stabilization.
The MAX5104’s 3-wire serial interface is compatible
with both MICROWIRE (Figure 2) and SPI/QSPI (Figure 3)
serial-interface standards. The 16-bit serial input word
consists of 1 address bit, 2 control bits, 12 bits of data
(MSB to LSB), and 1 sub-bit as shown in Figure 4. The
address and control bits determine the MAX5104’s
response, as outlined in Table 1.
Table 1. Serial-Interface Programming Commands
X = Don’t care
Note: D11, D10, D9, and D8 become control bits when A0, C1, and C0 = 0. S0 is a sub-bit, always zero.
A0
0
1
0
1
0
1
1
0
0
0
0
0
0
0
0
0
Low-Power, Dual, Voltage-Output, 12-Bit DAC
C1
0
0
1
1
1
0
1
0
0
0
0
0
0
0
0
0
C0
1
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
16-BIT SERIAL WORD
_______________________________________________________________________________________
D11.......................D0
(MSB)
0 0 1 X XXXXXXXX
1 0 1 X XXXXXXXX
1 1 0 X XXXXXXXX
1 1 1 X XXXXXXXX
0 1 0 X XXXXXXXX
0 1 1 X XXXXXXXX
1 0 0 1 XXXXXXXX
1 0 0 0 XXXXXXXX
0 0 0 X XXXXXXXX
XXXXXXXXXXXX
XXXXXXXXXXXX
12-bit DAC data
12-bit DAC data
12-bit DAC data
12-bit DAC data
12-bit DAC data
Serial Interface
(LSB)
S0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Load input register A; DAC registers are unchanged.
Load input register B; DAC registers are unchanged.
Load input register A; all DAC registers are updated.
Load input register B; all DAC registers are updated.
Load all DAC registers from the shift register
(start up both DACs with new data).
Update both DAC registers from their respective input registers
(start up both DACs with data previously stored in the input registers).
Shut down both DACs (provided PDL = 1).
Update DAC register A from input register A
(start up DAC A with data previously stored in input register A).
Update DAC register B from input register B
(start up DAC B with data previously stored in input register B).
Power Down DAC A (provided PDL = 1).
Power Down DAC B (provided PDL = 1).
UPO goes low (default).
UPO goes high.
Mode 1, DOUT clocked out on SCLK’s rising edge.
Mode 0, DOUT clocked out on SCLK’s falling edge (default).
No operation (NOP).
Figure 2. Connections for MICROWIRE
with Serial Interface
MAX5104
SCLK
DIN
CS
FUNCTION
SK
SO
I/O
MICROWIRE
PORT
7