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參數(shù)資料
| 型號： | DAC8531EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DAC8531 Evaluation Module(DAC8531評估板) |
| 中文描述： | DAC8531評估模塊（DAC8531評估板） |
| 文件頁數(shù)： | 11/42頁 |
| 文件大小： | 788K |
| 代理商： | DAC8531EVM |
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EVM Basic Functions
1-3
EVM Overview
If this EVM is used to connect to a DSP evaluation board through the common
connectors, J6 and J7, the DSP evaluation board supplies the power for the
EVM through J6 and J7. The jumper W9 is provided to allow the 3.3-V and
5.5-V supply to be selected individually by the user.
Caution
If using an external power supply via J2, remove jumper W9 to avoid
potential damage to the DSP circuitry. On the other hand, if a DSP
evaluation board is connected through the common connectors, J6 and
J7, the external power supply via J2 must be disconnected.
1.2.2
Reference Voltage
A 5-V precision reference voltage is provided through U15 or U16, whichever
one is installed onboard, via jumper W14 by shorting pins 1 and 2. An adjust-
able 100-k
potentiometer, R29, is installed in series with a 20-k
resistor,
R30, to allow the user to adjust the reference voltage to its desired settings.
TP11 and TP12 are provided as well, to allow the user to connect an external
reference source not to exceed 5 V dc.
Caution
When applying an external voltage reference through TP11, make sure
that it does not exceed 5 V maximum. Otherwise, this will damage the
U11 device, DUT.
1.3
EVM Basic Functions
The DAC8531EVM is an evaluation platform for the serial input, rail-to-rail out-
put, 12-bit and 16-bit digital-to-analog converters listed in Table 1
–
1. A built-in
test circuit is provided to easily check the EVM board functionality at a 20-MHz
serial clock rate. The dc self-test mode is performed by correctly setting the
appropriate jumpers and simply turning the SW1 switch to the on position.
Evaluating the DAC device in a more detailed manner can be accomplished
with the use of any microprocessor capable of interfacing with standard SPI,
QSPI, and Microwire, or DSP interfaces. A versatile three-wire serial interface
is implemented to support all the standard interfaces mentioned earlier and
can operate at clock rates up to 30 MHz.
The 20-pin headers, J8, J9, and J10 are provided, as a means to channel all
the necessary signals needed to interface a microprocessor/micro-
controller or some of TI
’
s older DSP starter kit to the DAC8531 EVM. These
headers can also be used for customizing the user
’
s processor interface or
hooking up with pattern generators. For most of TI
’
s DSP starter kits (DSKs)
that support the common connector interface, the headers J6 and J7 mounted
on the bottom side of the EVM board, are used to mate with the DSK
’
s 80-pin
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| DAC8531IDRB | 制造商:Texas Instruments 功能描述: |
| DAC8531IDRBR | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Lo-Pwr R-to-R Out 16-Bit Serial Input 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 |
| DAC8531IDRBRG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Lo-Pwr R-to-R Out 16-Bit Serial Input 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 |
| DAC8531IDRBT | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Lo-Pwr R-to-R Out 16-Bit Serial Input 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 |
| DAC8531IDRBTG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Lo-Pwr R-to-R Out 16-Bit Serial Input 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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