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參數(shù)資料
| 型號(hào)： | FMS9875KGC100 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP100 |
| 封裝： | MQFP-100 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大小： | 517K |
| 代理商： | FMS9875KGC100 |
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www.fairchildsemi.com
REV. 1.2.15 1/14/02
Features
108/140 Ms/s conversion rate
RGB and YPBPR clamps
444 and 422 output timing
Adjustable Gain and offset
Internal Reference Voltage
I2C/SMBus compatible Serial Port
100-pin package
Applications
YPBPR Digitizers
Projectors
TV sets
Description
As a fully integrated graphics interface, the FMS9875 can
digitize RGB or YPBPR video signals at resolutions up to
1280 x 1024 with 75 Hz refresh rate. Compatible video
formats include NTSC-601, PAL-601, SMPTE 293M,
SMPTE 296M and SMPTE 274M.
The ADC sampling clock can be derived from either an
external source or from incoming horizontal sync using the
internal PLL. Setup and control is via registers accessible
through an SMBus/I2C compatible serial port.
Input amplitude range is 500–1000mV with either DC or AC
coupling. AC coupled inputs can be clamped to program-
mable midpoint/bottom levels or to external reference levels
using either internal or externally generated clamp timing.
Common to the three channels are clamp pulses, a bandgap
reference voltage and clocks derived from the HSYNC PLL
or an external clock source. Digital data output levels are
2.5–3.3V CMOS compliant.
Power is derived from a single +3.3 Volt power supply. Package
is a low cost 100-lead MQFP. Performance specications are
guaranteed over 0°C to 70°C.
Product Number
Speed
FMS9875KAC100
108 Ms/s
FMS9875KAC140
140 Ms/s
Block Diagram
Bottom
Clamp
A/D
Gain &
Offset
Bottom/
Midpoint
Clamp
Bottom/
Midpoint
Clamp
Gain &
Offset
Gain &
Offset
444/422
DGY7-0
DBP7-0
DRP7-0
GYIN
GYREF
BPIN
BPREF
RPIN
RPREF
SYNC
Stripper
Timing
Generator
ACSIN
DCSOUT
DCK
HSOUT
VREFIN
VREFOUT
Reference
ICLAMP
SCK
A0
A1
Control
SDA
SCL
PWRDN
PLL
HSIN
COAST
XCK
LPF
PXCK
HS
INVSCK
CLAMP
FMS9875
GBR YPBPR Graphics Digitizer
Triple 8-Bit, 108/140 MHz A/D Converter with Clamps and PLL
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FMS9875KGC100X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| FMS9875KGC140 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| FMS9875KGC140X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| FMS9875KWC | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FMS9884A | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3x8-Bit, 108/140/175 Ms/s Triple Video A/D Converter with Clamps |
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