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參數(shù)資料
| 型號： | MAX533BCPE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | 2.7V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers |
| 中文描述： | QUAD, SERIAL INPUT LOADING, 6 us SETTLING TIME, 8-BIT DAC, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大小： | 146K |
| 代理商： | MAX533BCPE |
M
2.7V, Low-Power, 8-Bit Quad DAC
with Rail-to-Rail Output Buffers
______________________________________________________________________________________
11
For this command, the data bits are “Don't Cares.” As
an example, three MAX533s are daisy chained (A, B,
and C), and devices A and C need to be updated. The
36-bit-wide command would consist of one 12-bit word
for device C, followed by an NOP instruction for device
B and a third 12-bit word with data for device A. At
CS
’s
rising edge, device B will not change state.
Set DOUT Phase—SCLK Rising (Mode 1)
Mode 1 resets the serial-output DOUT to transition at
SCLK’s rising edge. Once this command is issued,
DOUT’s phase is latched and will not change except on
power-up or if the specific command to set the phase
to falling edge is issued.
This command also loads all DAC registers with the con-
tents of their respective input registers, and is identical to
the “
LDAC
” command.
Set DOUT Phase—SCLK Falling (Mode 0, Default)
This command resets DOUT to transition at SCLK’s falling
edge. The same command also updates all DAC registers
with the contents of their respective input registers, identical
to the “
LDAC
” command.
LDAC Operation (Hardware)
LDAC
is typically used in 4-wire interfaces (Figure 7). This
command is level sensitive, and it allows asynchronous
hardware control of the DAC outputs. With
LDAC
low, the
DAC registers are transparent, and any time an input regis-
ter is updated, the DAC output immediately follows.
Clear DACs with
CLR
Strobing the
CLR
pin low causes an asynchronous
clear of input and DAC registers and sets all DAC out-
puts to zero. Similar to the
LDAC
pin,
CLR
can be
invoked at any time, typically when the device is not
selected (
CS
= H). When the DAC data is all zeros, this
function is equivalent to the “Update all DACs from Shift
Registers” command.
Serial Data Output
DOUT is the internal shift register’s output. DOUT can
be programmed to clock out data on SCLK’s falling
edge (mode 0) or rising edge (mode 1). In mode 0, out-
put data lags input data by 12.5 clock cycles, maintain-
ing compatibility with Microwire and SPI. In mode 1,
output data lags input data by 12 clock cycles. On
power-up, DOUT defaults to mode 0 timing. DOUT
never three-states; it always actively drives either high
or low and remains unchanged when
CS
is high.
1 0
1 1
x
x
x
x
x
x
x
x
D0
D1
D2
D3
D4
D5
D6
D7
C0
C1
A0
A1
(
LDAC
= x)
A1
1 0
A0
C1
1 0
C0
D7
x
D6
x
D5
x
D4
x
D3
x
D2
x
D1
x
D0
x
(
LDAC
= x)
SCLK
DIN
CS
SK
SO
I/0
MICROWIRE
PORT
MAX533
Figure 4. Connections for Microwire
DIN
SCLK
CS
MOSI
SCK
I/0
SPI/QSPI
PORT
MAX533
CPOL = 0, CPHA = 0
Figure 5. Connections for SPI/QSPI
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| MAX533BEEE+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 4Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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