FMS6417A Datasheet, PDF (1/14 Pages) Fairchild Semiconductor – Selectable RGB (YUV) HD/SD Video Filter Driver with Y, C, Composite, and Modulator Outputs

March 2005
FMS6417A
Selectable RGB (YUV) HD/SD Video Filter Driver
with Y, C, Composite, and Modulator Outputs
Features
■ YUV/RGB filters
■ 2:1 Mux inputs for multiple RGB/YUV inputs
■ Selectable 8MHz or 30MHz 6th order filters for RGB (YUV)
applications
■ 8MHz 6th order Y, C filters with composite summer
■ Modulator output with FCC group delay predistortion
■ AC or DC coupled input, AC coupled output
■ All outputs can drive AC coupled 75Ω loads and
provide 6dB of gain
■ Dual multiplexed inputs
■ 1% differential gain with 1° differential phase
■ 36dB/octave roll-off on all channels
■ Pin compatible upgrade to the award winning FMS6417
Applications
■ Cable set top boxes
■ Satellite set top boxes
■ DVD players
■ HDTV
■ Personal Video Recorders (PVR)
■ Video On Demand (VOD)
■ Media Centers
Description
The FMS6417A offers comprehensive filtering for set top box or
DVD applications. This part consists of a triple 6th order filter
with selectable 30MHz or 8MHz frequencies and a dual filter for
filtering Y,C with a composite summer and a modulator channel
with sound-notch and FCC group delay compensation. The
modulator provides sound-notching and FCC group delay com-
pensation for NTSC.
2-to-1 multiplexers are provided on the triple filters as well as
provisions for auxiliary inputs to the composite channel. The triple
filters are intended for either YUV or RGB signals. All channels
accept AC or DC coupled ground-referenced 1V signals. The filters
output 2V_pp signals into AC coupled terminated loads. The low-
pass filters are powered by 3.3V and the modulator and outputs
by 5.0V.
Functional Block Diagram
INMUX (A/B) Filter Select (HD/SD)
R_INA (V_INA)
R_INB (V_INB)
G_INA (Y_INA)
G_INB (Y_INB)
B_INA (U_INA)
B_INB (U_INB)
Y_IN
AUX_IN
C_IN
0.5V
(Internal
Reference)
CVMUX (Y_IN/C_IN; AUX_IN)
R_OUT (V_OUT)
6dB
G_OUT (Y_OUT)
6dB
B_OUT (U_OUT)
6dB
6dB
6dB
6dB
6dB
Y_OUT
CV_OUT
C_OUT
MOD_OUT
FMS6417A Rev. 2A
1
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©2005 Fairchild Semiconductor Corporation