參數(shù)資料
型號(hào)： TLV2544EVM
廠商： Texas Instruments, Inc.
英文描述： 12-BIT ADC EVALUATION MODULE(12位ADC評(píng)估板)
中文描述： 12位ADC評(píng)估板（12位ADC的評(píng)估板）
文件頁(yè)數(shù)： 30/36頁(yè)
文件大?。?/td> 775K
代理商： TLV2544EVM
3-8
Circuit Description
3.2.7
Jumper Arrangement
The EVM evaluation can begin with the following shorting plug arrangement.
Device
Jumper Configuration
TLV1544
TLV1504
TLC1514
TLC1518
TLV1508
W1 pins 2–3 shorted
W2 pins 2–3 shorted
W3 pins 1–2 shorted
W5 pins 1–2 shorted (during loopback testing W5 pins 2–3 shorted)
W6 shorted (when using the DSP timer)
W7 pins 3–4 shorted (W7 pins 5–6 shorted for real-time DSP
captured data to the DAC)
W8 pins 1–2 shorted
W9 pins 1–2 shorted
W11 open
JP1 open
TLV2544
TLV2548
TLC2554
TLC2558
W1 pins 2–3 shorted
W2 pins 2–3 shorted
W3 pins 1–2 shorted
W5 pins 1–2 shorted (during loopback testing W5 pins 2–3 shorted)
W6 shorted (when using the DSP timer)
W7 pins 3–4 shorted (W7 pins 5–6 shorted for real-time DSP
captured data to the DAC)
W8 pins 1–2 shorted
W9 pins 2–3 shorted
W11 open
JP1 open
3.2.8
Breadboard Area
The breadboard area on the EVM board is an arrangement which is most con-
venient for a discrete component filter stage/adding functions to the EVM. The
voltages AVDD and DVDD, and GND are conveniently provided at the periph-
ery of the breadboard area.
3.2.9
TLC5618A, 12-Bit Serial DAC
A 12-bit serial DAC is provided on the EVM for evaluating the output from the
ADC. The serial digital input value applied to the converter, is converted
into an analog value. The reference voltage for the DAC is set to
(REF
)–(REF–)
2
since the DAC output has a X2 op amp. Monitoring the out-
put from the DAC at J13 gives a very sensitive measure of the analog input
applied to the ADC.
3.2.10 LOOPBACK Testing
LOOPBACK testing is a convenient way for checking how well the ADC is per-
forming, without having to store the ADC output in memory. Additional circuitry
is provided on the EVM for doing just that. The ADC output data is formatted,
using D-type flip flops, to directly drive the TLC5618A, 12-bit serial DAC. With
jumper W5 pins 2–3 shorted, the ADC output applied to the DAC is converted
to an analog replica of the ADC input. The DAC output is monitored at OUTB
(J14). Setting up the ADC for conversion is simple – see Section 1.7.
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TLV2544ID 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12bit 200KSPS SAR RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV2544IDG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 200 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV2544IDR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 200 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV2544IDRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 200 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV2544IPW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12bit 200KSPS SAR RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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