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參數(shù)資料
| 型號： | THS1403EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | THS1403EVM(THS1403評估板) |
| 中文描述： | THS1403EVM（THS1403評估板） |
| 文件頁數(shù)： | 22/39頁 |
| 文件大?。?/td> | 523K |
| 代理商： | THS1403EVM |
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Circuit Function
3-5
Circuit Description
3.1.2
Clock Options
The EVM provides flexibility for the source of the ADC’s conversion clock. This
clock can come from an external source as previously described, from a
standard DIL14 HCMOS crystal oscillator module populating U6, or from a
U108-style surface-mount oscillator populating U10.
Note:
Ensure that the crystal oscillator module selected can operate at the +3.3-V
supply voltage.
Supplying the ADC clock using a timer output (OUT_TOUT J2 P45) is an op-
tion provided for applications that require synchronization of the ADC conver-
sion to the DSP on the motherboard. This is selected using a jumper link on
H6 (1–2).
A summary of the jumper link settings required for the various clock options
is shown in Table 3–3.
Table 3–3.Jumper Settings for Clock Options
Clock
Options
Onboard
Oscillator
External AC
Coupled Via J3
External DC
Coupled Via J3
DSP Timer Via
OUT_TOUT
H 3
1–2
–
2–3
–
H 5
2–3
1–2
2–3
–
H 6
2–3
2–3
2–3
1–2
3.1.3
References
The EVM relies on the THS14xx ADC using its on-chip reference.
3.1.4
Power
Power is supplied to the EVM via 4-mm banana sockets and the daughtercard
connectors. This provides flexibility and a trade-off between convenience and
performance as follows:
For best performance: Use a separate low-noise analog power supply
connected to J7 (+3.3 V) and J12 (GND). Use the digital supply from the
daughtercard connectors.
For good performance: Use the daughtercard connectors for both analog
and digital supplies. This is achieved by inserting a jumper link in H14 on
the EVM.
For stand-alone operation: Use a separate low-noise analog power supply
connected to J7 (+3.3 V) and J12 (GND) and a separate low-noise digital
power supply connected to J8 (+3.3 V) and J13 (GND).
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| THS1403IPFB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 1/3/8 MSPS DSP-Compatible ADC 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| THS1403IPFBG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 1/3/8 MSPS DSP-Compatible ADC 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| THS1403PFB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA |
| THS1403QPHP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 1/3/8 MSPS DSP-Compatible ADC 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| THS1403QPHPEP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Mil Enhanc 14B 1/3/8 MSPS DSP Comp ADC 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 輸入類型:Differential 信噪比:107 dB 接口類型: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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