參數(shù)資料
型號: AD5700BCPZ-RL7
廠商: Analog Devices Inc
文件頁數(shù): 23/24頁
文件大?。?/td> 0K
描述: IC HART MODEM LP 24LFCSP
標準包裝: 1,500
系列: *
AD5700/AD5700-1
Data Sheet
Rev. F | Page 8 of 24
Pin No.
Mnemonic
Description
19
AGND
Analog Circuitry Ground Reference Connection.
20
XTAL2
Connection for External 3.6864 MHz Crystal. Do not connect to this pin if using the internal RC oscillator
(AD5700-1 only) or an external clock source.
21
XTAL1
Connection for External 3.6864 MHz Crystal or External Clock Source Input. Tie this pin to ground if using the
internal RC oscillator (AD5700-1 only).
22
DGND
Digital Circuitry Ground Reference Connection. For typical operation, it is recommended to connect this pin to
AGND.
23
REF_EN
Reference Enable. A high state enables the internal 1.5 V reference and buffer. A low state disables the internal
reference and input buffer, and a buffered external 2.5 V reference source must be applied at REF. If REF_EN is
tied low, VCC must be greater than 2.7 V.
24
FILTER_SEL
Band-Pass Filter Select. A high state enables the internal filter and the HART signal should be applied to the
HART_IN pin. A low state disables the internal filter and an external band-pass filter must then be connected at
the ADC_IP input pin. In this case, the HART signal should be applied to the ADC_IP pin.
EPAD
Exposed Pad. For typical operation, it is recommended to connect this pin to AGND.
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