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參數(shù)資料
| 型號(hào)： | MAX5548ETE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Dual, 8-Bit, Programmable, 30mA High-Output-Current DAC |
| 中文描述： | SERIAL INPUT LOADING, 30 us SETTLING TIME, 8-BIT DAC, QCC16 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, EXPOSED PAD, MO-220WEED-2, QFN-16 |
| 文件頁(yè)數(shù)： | 12/15頁(yè) |
| 文件大?。?/td> | 296K |
| 代理商： | MAX5548ETE |
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M
Applications Information
Daisy Chaining (SPI/
I2C
= V
DD
)
In standard SPI-/QSPI-/MICROWIRE-compatible
systems, a microcontroller (μC) communicates with its
slave devices through a 3- or 4-wire serial interface.
The typical interface includes a chip-select signal (
CS
),
a serial clock (SCLK), a data input signal (DIN), and
sometimes a data signal output (DOUT). In this system,
the μC allots an independent slave-select signal (
SS_
)
to each slave device so that they can be addressed
individually. Only the slaves with their
CS
inputs assert-
ed low acknowledge and respond to the activity on the
serial clock and data lines. This is simple to implement
when there are very few slave devices in the system.
An alternative method is daisy chaining. Daisy chain-
ing, in serial-interface applications, is the method of
propagating commands through devices connected in
series (see Figure 8).
Daisy chain devices by connecting the DOUT of one
device to the DIN of the next. Connect the SCLK of all
devices to a common clock and connect the
CS
of all
devices to a common slave-select line. Data shifts out of
DOUT 16.5 clock cycles after it is shifted into DIN on the
falling edge of SCLK. In this configuration, the μC only
needs three signals (
SS
, SCK, and MOSI) to control all of
the slaves in the network. The SPI-/QSPI-/MICROWIRE-
compatible serial interface normally works at up to
10MHz, but must be slowed to 5MHz if daisy chaining.
DOUT is high impedance when
CS
is high.
Dual, 8-Bit, Programmable, 30mA
High-Output-Current DAC
12
______________________________________________________________________________________
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D5
D4
D3
D2
D1
D0
S1
S0
C3
C2
SCLK
DIN
CS
C5
C4
C1
C0
D7
D6
Figure 7. SPI-Interface Format
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
t
CSW
t
CS1
t
CSD
t
CSH
LSB
t
DO1
t
CL
t
CP
t
CH
t
DH
t
DS
MSB
MSB
t
CSS
t
CSO
CS
SCLK
DIN
DOUT
t
CSE
Figure 6. SPI-Interface Timing Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5548ETE#G16 | 功能描述:數(shù)模轉(zhuǎn)換器- 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(shí)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 |
| MAX5548ETE#TG16 | 功能描述:數(shù)模轉(zhuǎn)換器- 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(shí)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 |
| MAX5548ETE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 2Ch 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(shí)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 |
| MAX5548ETE+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 2Ch 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(shí)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 |
| MAX5548ETE-G16 | 制造商:Maxim Integrated Products 功能描述:DUAL, 8-BIT, 30MA HIGH-OUTPUT-CURRENT DAC - Rail/Tube |
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