MAX5104 データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX5104 Datasheet PDF : 12 Pages
| |||
Low-Power, Dual, Voltage-Output, 12-Bit DAC
with Serial Interface
Table 1. Serial-Interface Programming Commands
16-BIT SERIAL WORD
A0 C1 C0
D11.......................D0
(MSB)
(LSB)
S0
FUNCTION
001
12-bit DAC data
0
Load input register A; DAC registers are unchanged.
101
12-bit DAC data
0
Load input register B; DAC registers are unchanged.
010
12-bit DAC data
0
Load input register A; all DAC registers are updated.
110
12-bit DAC data
0
Load input register B; all DAC registers are updated.
011
12-bit DAC data
0
Load all DAC registers from the shift register
(start up both DACs with new data).
100
111
XXXXXXXXXXXX
XXXXXXXXXXXX
0
Update both DAC registers from their respective input registers
(start up both DACs with data previously stored in the input registers).
0
Shut down both DACs (provided PDL = 1).
000
000
0 0 1 X XXXXXXXX
1 0 1 X XXXXXXXX
0
Update DAC register A from input register A
(start up DAC A with data previously stored in input register A).
0
Update DAC register B from input register B
(start up DAC B with data previously stored in input register B).
000
1 1 0 X XXXXXXXX
0
Power Down DAC A (provided PDL = 1).
000
1 1 1 X XXXXXXXX
0
Power Down DAC B (provided PDL = 1).
000
0 1 0 X XXXXXXXX
0
UPO goes low (default).
000
0 1 1 X XXXXXXXX
0
UPO goes high.
000
1 0 0 1 XXXXXXXX
0
Mode 1, DOUT clocked out on SCLK’s rising edge.
000
1 0 0 0 XXXXXXXX
0
Mode 0, DOUT clocked out on SCLK’s falling edge (default).
000
0 0 0 X XXXXXXXX
0
No operation (NOP).
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.
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.
Serial Interface
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.
SCLK
MAX5104 DIN
CS
SK
MICROWIRE
SO
PORT
I/O
Figure 2. Connections for MICROWIRE
_______________________________________________________________________________________ 7
Share Link: 