FMS6417 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – Selectable RGB (YUV) HD/SD Video Filter Driver with Y, C, Composite, and Modulator Outputs

Antialias Reconstruction Filter
www.fairchildsemi.com
FMS6417
Selectable RGB (YUV) HD/SD Video Filter Driver
with Y, C, Composite, and Modulator Outputs
Features
• Three channel video reconstruction filter
• YUV/RGB filters
• 2:1 Mux inputs for multiple RGB/YUV inputs
• Selectable 8MHz to 30MHz 6th order filters
for RGB (YUV) applications
• 8MHz 6th order Y, C filters with composite summer
• Modulator output with group delay predistortion
• 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
Applications
• Cable Set top boxes
• Satellite Set top boxes
• DVD players
• HDTV
• Personal Video Recorders (PVR)
• Video On Demand (VOD)
Functional Block Diagram
Description
The FMS6417 offers comprehensive filtering for set top box
or DVD applications. This part consists of a triple 6th order
filter with selectable 30MHz to 8MHz frequencies and a dual
filter for filtering Y,C with a composite summer and a modu-
lator channel with notch and group delay compensation. The
modulator provides notching and group delay compensation
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 DC coupled ground-referenced 1V_pp 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.
R_INA (V_INA)
R_INB (V_INB)
INMUX (A/B) Filter Select (HD/SD)
R_OUT (V_OUT)
6dB
G_INA (Y_INA)
G_INB (Y_INB)
G_OUT (Y_OUT)
6dB
B_INA (U_INA)
B_INB (U_INB)
B_OUT (U_OUT)
6dB
Y_IN
AUX_IN
C_IN
0.5V
(Internal
Reference)
CVMUX (Y_IN/C_IN; AUX_IN)
6dB
6dB
6dB
6dB
Y_OUT
CV_OUT
C_OUT
MOD_OUT
REV. 2a December 2003