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PDF FMS6410CS Data sheet ( Hoja de datos )
| Número de pieza | FMS6410CS | |
| Descripción | Dual Channel Video Drivers with Integrated Filters and Composite Video Summer | |
| Fabricantes | Fairchild Semiconductor | |
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FMS6410
Dual Channel Video Drivers with Integrated Filters
and Composite Video Summer
Video Features
• Dual integrated video low pass reconstruction filters on
outputs
• Composite Video Summer
• Integrated output drivers provide low impedance outputs
and deliver 2VP-P (6dB gain) video into 150Ω.
• 7.1MHz 4th order video filters
• 7.1MHz Y and C filters, with CV out
• 42dB stopband attenuation at 27MHz on Y, C, and CV
• Better than 1dB flatness to 4.5 MHz on Y, C, and CV
• No external frequency select components or clocks
• 9ns group delay flatness on Y, C, and CV output
• AC coupled inputs and outputs
• 0.4% differential gain with 0.4° differential phase
• Integrated DC Restore / Clamp circuitry with low tilt
Applications
• CCTV
• Cable and Satellite Set top boxes
• DVD players
• Televisions
• Personal Video Recorders (PVRs)
• Video On Demand (VOD)
• Distribution Amplifiers
Functional Block Diagram
General Description
The FMS6410 Dual Channel Video Filter – Driver Chip with
CV Summer offers comprehensive video filtering for set top
box or DVD applications. This part consists of two 4th order
Butterworth 7.1MHz low pass filters for video signals. The
filters are optimized for low overshoot and flat group delay.
The device also contains a summing circuit to generate
filtered composite video. Integrated video drivers are
included to facilitate a direct drive to the outside world.
In a typical application, the Y and C input signals from
DACs are AC coupled into the filter. Both channels have DC
restore circuitry to clamp the DC input levels during video
sync. The Y and C channels use a separate feedback clamp.
The clamp pulse is derived from the Y channel.
The outputs are AC coupled. The Y, C and, CV outputs are
buffered to drive 2VP-P into a 150Ω load (1VP-P into a
doubly terminated 75Ω coax load) with up to 35pF of load
capacitance at the output pin. The Y, C, and CV channels
have a gain of approximately 2 (6dB) with 1VP-P input
levels. There is an option for the video output to be DC
coupled which limits the drive output to one output on each
channel.
1 YIN
SYNC STRIP, REF,
AND TIMING
6dB
YOUT 8
gM
2
NC (Reserved)
1V
3
GND_VIDEO
FMS6410
4 CIN
gM
1V
6dB
7
VCC_VIDEO
CVOUT 6
COUT 5
REV. 0.0.2 9/3/02
1 page  
PRODUCT SPECIFICATION
Typical Performance Graphs
1
0
-1
-2
-3
-4
0.01
0.1 1
FREQUENCY (MHz)
10
Figure 3. Passband Flatness for Y, C, and CV
outputs (Normalized). Passband is ripple-free.
90
70
50
30
10
1 2 3 4 5 6 7 8 9 10 11
FREQUENCY (MHz)
Figure 5. tPD Propagation Delay for Y, C,
and CV Outputs
FMS6410
20
0
-20
-40
-60
-80
0.01
0.1 1 10
FREQUENCY (MHz)
100
Figure 4. Passband/Stopband Rejection Ratios
for Y, C, and CV outputs. (Normalized)
Figure 6. DC Restore Performance of Luma Output.
Luma ramp test pattern is shown to have minimal tilt
during vertical sync.
REV. 0.0.2 9/3/02
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet FMS6410CS.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| FMS6410CS | Dual Channel Video Drivers with Integrated Filters and Composite Video Summer | Fairchild Semiconductor |
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