Rev. 1.00 where Code represents the binary contents of the 10- bit gain setting register. Channel Offset Adjustment The gross" />
參數(shù)資料
型號(hào): XRD9816BCV-F
廠商: Exar Corporation
文件頁(yè)數(shù): 9/53頁(yè)
文件大小: 0K
描述: IC 16BIT CCD/CIS SIG PROC 48TQFP
標(biāo)準(zhǔn)包裝: 250
位數(shù): 16
通道數(shù): 3
電壓 - 電源,模擬: 4.5 V ~ 5.5 V
電壓 - 電源,數(shù)字: 3 V ~ 5.5 V
封裝/外殼: 48-TQFP
供應(yīng)商設(shè)備封裝: 48-TQFP(7x7)
包裝: 托盤
XRD9814B/9816B
17
Rev. 1.00
where Code represents the binary contents of the 10-
bit gain setting register.
Channel Offset Adjustment
The gross offset correction for each channel is
progammable from -400mV to +200mV. It is adjusted
by toggling PB9 and PB8 of Offset Registers (Table 4).
Theory of Operation
Code
1024
9 0 + 1
.
PGA Gain =
PB7=1 equals -1
PB7=0 equals +1
Code = (PB6:PB0) of the 10-bit offset register.
Block Diagram of the Fine and Gross Offset Adjustment DAC
CDS
PGA
10-Bit
Differential
Input
XRD9814B/16B
ADC
14-Bit
3:1
MUX
8
-B
it
2
-B
it
P
ro
g
ra
m
a
b
le
S
e
ri
a
l
P
o
rt
8-Bit Offset DAC
Fine Adjust
2-Bit Offset
Variable Capacitive Divider
Gross Adjust
Offset Block
Vout
The fine offset correction for each channel is program-
mable from -300mV to +300mV.
Fine Channel Offset =
(
)
PB
Code
7
128
300mV
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