參數(shù)資料
型號(hào): FMS9875KGC100
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類(lèi): ADC
英文描述: 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP100
封裝: MQFP-100
文件頁(yè)數(shù): 28/31頁(yè)
文件大小: 517K
代理商: FMS9875KGC100
PRODUCT SPECIFICATION
FMS9875
6
REV. 1.2.15 1/14/02
Register Denitions
PHASE7-0
0B
Sampling clock phase. PHASE4-0 stored in upper
register bits 7-3. PHASE sets the sampling clock phase in
11.25° increments. Default value is decimal 16.
80
PLLCTRL
0C
PLL Control.
24
CONFIG 2
0D
Configuration Register No. 2.
00
0E
Clamp Control Register.
00
0F
Reserved.
00
PLL Control Register (01)
Bit no.
Name
Type
Description
1-0
SUBDIV1-0
R/W
PLL Subdivide ratio. Selects the ratio of the divider following the PLL.
00: divide-by 1
01: divide-by 2
10: divide-by 4
11: reserved
2
PLLFAZ
R/W
PLL Sub-divider Phase. Selects the phase of the divide-by-2 output.
(Invalid for other outputs)
3
R/W
Reserved.
7-4
PLLN3-0
R/W
PLL divide ratio, LSBs. PLLN + 1 = total number of pixels per horizontal line.
Conguration Register 1 (0A)
Bit no.
Name
Type
Description
0
1
XCKSEL
R/W
External Clock Select. Select internal clock source.
0: Internal PLL
1: XCK input.
2
XCLAMPOL
R/W
External Clamp Polarity. Select clamp polarity.
0: Active L.
1: Active H.
3
XCLAMP
R/W
External Clamp Select. Select clamp source.
0: Internally generated by PLL referenced to HSIN.
1: External CLAMP input.
4
COASTPOL
R/W
Coast Polarity. Select COAST input polarity.
0: Active L.
1: Active H.
5
HSPOL
R/W
HSIN Polarity. Select horizontal sync input polarity. PLL is locked to selected
edge:
0: Falling edge.
1: Rising edge.
6—
R
1:
7—
R
1:
Name
Address
Function
Default (hex)
PHASE4–0
X X X
SUBDIV1–0
XXXX
PLLN3–0
X X X
X
XX
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