March 2002
FMS9874A
Product Brief
100 Lead MQFP
140MHz 3x8-Bit RGB
Graphics Digitizer
Cost-effective RGB Digitizer
Features
I
I
I
I
I
I
140 Ms/s conversion rate
RGB clamps
Adjustable Gain and Offset
Internal Reference Voltage
I
2
C/SMBus compatible Serial Port
100-pin package
General Description
As a fully integrated graphics interface, the FMS9874A can digitize
RGB video signals at resolutions up to 1280x1024 at 85Hz refresh
rate. Supported PC video formats include: VGA, SVGA, XGA,
SXGA (60 – 85Hz refresh) and UXGA (60Hz refresh).
The A/D converter sampling clock can be derived from either an
external source or from the internal PLL which tracks incoming
horizontal sync. Setup and control is via registers accessible through
an SMBus/I
2
C compatible serial port.
Input amplitude range is 550-900mV with either DC or AC
coupling. AC coupled inputs can be clamped to programmable mid-
point/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 internal PLL or an
external clock source. Digital data output levels are 2.5-3.3 volt
CMOS compliant.
Power is derived from a single +3.3 Volt power supply. Package is
a low cost 100-lead MQFP. Performance specifications are
guaranteed from 0°C to 70°C.
Applications
I
Flat Panel Displays
I
Plasma Panel Displays
I
Projectors
Key Specifications
Advertised Specifications
YP
B
P
R
Conversion Rate
No. of Registers
Sync Processing
Note 1:
Available with FMS9875.
FMS9874A
X
1
140
15
X
AD9883A
√
140
24
√
THS8083
√
95
48
X
Units
Ms/s
Ordering Information
Part No.
FMS9874AKGC100
FMS9874AKGC100X
FMS9874AKGC140
FMS9874AKGC140X
Package
100-lead MQFP
100-lead MQFP
100-lead MQFP
100-lead MQFP
Container
Tray
Tape and Reel
Tray
Tape and Reel
Pack Qty
84
500
84
500
Eval Board
Yes
Yes
Yes
Yes
Rev. 1.0.3
FMS9874A
Electrical Characteristics
PARAMETERS
Frequency Domain
CONDITIONS
1
Response
3
PC
CD
CD
140
400
10 - 140
Ms/s
MHz
MHz
TYP
V
DDX
= +3.3 V
UNITS
Absolute Maximum Ratings
Min.
V
DDA
, V
DDP
, V
DDO
Digital Inputs
Digital Outputs
T
A
-0.5
-0.3
-20
0
Max.
4.0 V
3.6V
20
70
Unit
V
V
mA
°C
A/D Conversion Rate
A/D Input Bandwidth
PLL range
Time Domain Response
3
PLL Jitter
A/D Clock Out to
Data Out Skew
Distortion and Noise Response
A/D SNR
DC Performance
Integral Linearity Error, E
LI
Differential Linearity
Error, E
LD
Input full-scale matching
Power
Input Characteristics
Analog input range
Input Offset
Disable Characteristics
Power Down Current, I
PD
Output Characteristics
Output current, data
Output current, clocks
Note 1:
0-70°C, unless otherwise stated.
Typical Circuit Configuration
25°C, C
C
2
±
1
% rms
(pixel period)
ns
VSIN
FMS987X
HSIN
PLL
HSOUT
GY
25°C, C
dB
BP
RP
A/D
Scaler
Flat
Panel
PC
PC
C
C
±
2
±
1
2.5
800
LSB max.
LSB max.
%
mW
Microcontroller
29326
CD
PC
700
±
75
mV
mV max.
C
5
mA
CD
CD
±
4
±
8
mA max.
mA max.
Test Rank Definitions
Rank
P
D
C
Production tested at 25°C.
Guaranteed by Design over full temperature range.
Guaranteed by Characterization and design over full temperature range.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN
APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into the body, or (b) support or sustain life, and whose failure to
perform, when properly used in accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a significant injury to the user.
2. A critical component is any component of a life support device or system whose
failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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