參數(shù)資料
型號(hào): AD9259ABCPZRL7-50
廠商: Analog Devices Inc
文件頁數(shù): 31/52頁
文件大?。?/td> 0K
描述: IC ADC 14BIT SRL 50MSPS 48LFCSP
標(biāo)準(zhǔn)包裝: 750
位數(shù): 14
采樣率(每秒): 50M
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 4
功率耗散(最大): 409mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 48-LFCSP-VQ(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 8 個(gè)單端,單極;4 個(gè)差分,單極
Data Sheet
AD9259
Rev. E | Page 37 of 52
ALTERNATIVE ANALOG INPUT DRIVE
CONFIGURATION
The following is a brief description of the alternative analog input
drive configuration using the AD8332 dual VGA. If this drive
option is in use, some components may need to be populated, in
which case all the necessary components are listed in Table 17. For
more details on the AD8332 dual VGA, including how it works
and its optional pin settings, consult the AD8332 data sheet.
To configure the analog input to drive the VGA instead of the
default transformer option, the following components need to
be removed and/or changed.
Remove R102, R115, R128, R141, R161, R162, R163, R164,
T101, T102, T103, and T104 in the default analog input path.
Populate R101, R114, R127, and R140 with 0 resistors in
the analog input path.
Populate R105, R113, R118, R124, R131, R137, R151, and
R160 with 0 resistors in the analog input path to connect
Populate R152, R153, R154, R155, R156, R157, R158, R159,
C103, C105, C110, C112, C117, C119, C124, and C126
with 10 k resistors to provide an input common-mode
level to the ADC analog inputs.
Remove R305, R306, R313, R314, R405, R406, R412, and
R424 to configure the AD8332.
In this configuration, L301 to L308 and L401 to L408 are
populated with 0 resistors to allow signal connection and
use of a filter if additional requirements are necessary.
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