參數(shù)資料
型號: AD9944KCPZ
廠商: Analog Devices Inc
文件頁數(shù): 7/20頁
文件大?。?/td> 0K
描述: IC CCD SIGNAL PROCESSOR 32-LFCSP
標(biāo)準(zhǔn)包裝: 1
類型: CCD 信號處理器,12 位
輸入類型: 邏輯
輸出類型: 邏輯
接口: 3 線串口
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 托盤
Data Sheet
AD9943/AD9944
A/D CONVERTER
The ADC uses a 2 V input range. Better noise performance
results from using a larger ADC full-scale range. The ADC uses
a pipelined architecture with a 2 V full-scale input for low noise
performance.
VARIABLE GAIN AMPLIFIER
The VGA stage provides a gain range of 6 dB to 40 dB,
programmable with 10-bit resolution through the serial digital
interface. The minimum gain of 6 dB is needed to match a 1 V
input signal with the ADC full-scale range of 2 V. A plot of the
VGA gain curve is shown in Figure 13.
( )
(
)
dB
3
.
5
dB
035
.
0
dB
+
×
=
Code
VGA
Gain
VGA
Figure 13. VGA Gain Curve
VGA GAIN REGISTER MODE
42
12
383
127
VGA
GAIN
(dB)
0
30
255
36
34
18
6
511
639
767
895
1023
02905-B-014
Rev. C | Page 15 of 20
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