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FMS6419 Datasheet, PDF (6/10 Pages) Fairchild Semiconductor – Selectable RGB (YUV) HD/SD Video Filter Driver with Y, C, Composite Outputs | |||
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DATA SHEET
High Deï¬nition Typical Performance Characteristics
(TC = 25°C, Vi = 1Vpp; VCCA = 3.3V, VCCO = 5.0V, FSEL = 1, all inputs AC coupled with 0.1µF,
all outputs AC coupled with 220µF into 150â¦, referenced to 400kHz; unless otherwise noted)
FMS6419
Frequency Response RGB Channels
10
1
0
2
-10
Mkr Frequency Amplitude
-20 Ref 400kHz 6dB
1 26.57MHz -1dB BW
-30 2 31.5MHz -3dB BW
3 74.25MHz -33.53dB
fSBHD = Amplitude(ref) â Amplitude(3) = 39.53dB
-40
400kHz
20
40
60
Frequency (MHz)
3
80 90
Noise vs. Frequency RGB Channels
-45
-55
-65
-75
-85
-95
-105
-115
-125
-135
0
1.0
2.0
3.0
4.0
5.0
Frequency (MHz)
Group Delay vs. Freq. RGB Channels
8
6
1
4
2
0
-2
-4
-6
-8
-10 1 = 32MHz (4.98ns)
-12
400kHz 10 20 30 40 50
60
Frequency (MHz)
General Description
The FMS6419 offers comprehensive ï¬ltering for set top box
or DVD applications. This part consists of triple 6th order
ï¬lters with selectable 30MHz or 8MHz frequencies and a
dual ï¬lter for ï¬ltering Y, C with a composite summer. 2 to 1
multiplexers are provided on the triple ï¬lters as well as
provisions for auxiliary input to the composite channel. The
triple ï¬lters are intended for either YUV or RGB signals.
All channels accept DC coupled ground-referenced 1V
signals. The ï¬lters outputs 2Vpp signals into AC coupled
terminated loads. The low-pass ï¬lters are powered by 3.3V
and output buffers are powered by 5.0V.
The FMS6419 is a next generation ï¬lter solution from
Fairchild Semiconductor addressing the expanding ï¬ltering
needs for set top boxes, and DVD players. The product
provides selectable ï¬ltering from 30MHz to 8MHz on the
RGB channels. Thus, the FMS6419 addresses the require-
ment for a single set top box to be compatible with a variety
of resolution standards. Additionally, the product provides
additional ï¬lters for Y, C, and Composite Video (CV) out-
puts. Multiplexers on the RGB and CV channels provide
further ï¬exibility.
For DVD applications, the product provides ï¬ltering and
output drive ampliï¬cation for 6 channels of outputs. These
include R, G, B, Y, C, and CV outputs.
For Set top boxes, this product provides for 2 channels of
video to be ï¬ltered, as well as the ï¬exibility of selectable
high order ï¬ltering for multiple resolution standards.
Additional ï¬exibility is provided by the Y (Luma) and C
(Chroma) ï¬lters with a composite summer.
All channels provide 6dB gain, accept 1V ground referenced
inputs, and drive AC coupled loads. The ï¬lters for the R, G,
B, Y, C, and CV channels are powered from a 3.3V supply
and the outputs from 5V.
6
REV. 4C June 28, 2004
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