參數(shù)資料
型號(hào)： MAX186DCWP
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： REDEL 1P Series
中文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： SO-20
文件頁(yè)數(shù)： 23/24頁(yè)
文件大?。?/td> 245K
代理商： MAX186DCWP
M
Low-Power, 8-Channel,
S erial 12-Bit ADCs
______________________________________________________________________________________
23
TMS320C3x to MAX186 Interface
Figure 22 shows an application circuit to interface the
MAX186/MAX188 to the TMS320 in external clock
mode. The timing diagram for this interface circuit is
shown in Figure 23.
Use the following steps to initiate a conversion in the
MAX186/MAX188 and to read the results:
1) The TMS320 should be configured with CLKX (trans-
mit clock) as an active-high output clock and CLKR
(TMS320 receive clock) as an active-high input clock.
CLKX and CLKR of the TMS320 are tied together with
the SCLK input of the MAX186/MAX188.
2) The MAX186/MAX188
CS
is driven low by the XF_
I/O port of the TMS320 to enable data to be clocked
into DIN of the MAX186/MAX188.
3) An 8-bit word (1XXXXX11) should be written to the
MAX186/MAX188 to initiate a conversion and place
the device into external clock mode. Refer to Table
2 to select the proper XXXXX bit values for your spe-
cific application.
4) The SSTRB output of the MAX186/MAX188 is moni-
tored via the FSR input of the TMS320. A falling
edge on the SSTRB output indicates that the conver-
sion is in progress and data is ready to be received
from the MAX186/MAX188.
XF
CLKX
CLKR
DX
DR
FSR
CS
SCLK
DIN
DOUT
SSTRB
TMS320C3x
MAX186
MAX188
Figure 22. MAX186/MAX188 to TMS320 Serial Interface
CS
SCLK
SSTRB
DIN
Figure 21. QSPI Assembly-Code Timing
5) The TMS320 reads in one data bit on each of the
next 16 rising edges of SCLK. These data bits rep-
resent the 12-bit conversion result followed by four
trailing bits, which should be ignored.
6) Pull
CS
high to disable the MAX186/MAX188 until
the next conversion is initiated.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX186DCWP+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision 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
MAX186DCWP+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision 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
MAX186DCWP-T 功能描述:模數(shù)轉(zhuǎn)換器 - 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
MAX186DEAP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision 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
MAX186DEAP+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision 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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