www.fairchildsemi.com
FMS6407
Triple Video Drivers with Selectable
HD/Progressive/SD/Bypass Filters
Features
Description
• Three video anti-aliasing or reconstruction filters
• 2:1 Mux inputs for YPbPr / RGB or YPbPr / YC-CV inputs
• Supports D1, D2, D3 and D4 video D-connector
(EIAJ CP-4120)
The FMS6407 offers comprehensive filtering for TV, set top
box or DVD applications. This part consists of a triple 6th
order filter with selectable 30MHz, 15MHz, or 8MHz cutoff
frequencies. The filters may also be bypassed so that the
bandwidth is limited only by the output amplifiers.
• Selectable 8MHz/15MHz/30MHz 6th order filters plus
bypass for SD (480i), Progressive (480p) and HD
(1080i/ 720p)
• AC-coupled inputs include DC restore /bias circuitry
• All outputs can drive AC or DC coupled 75Ω loads and
provide either 0dB or 6dB of gain
A 2 to 1 multiplexer is provided on each filter channel.
The triple filters are intended for YPbPr, RGB and YC-CV
signals. The DC clamp levels are set according to the input
mux selection and the CV_SEL control input. YPbPr sync
tips are clamped to 250mV, 1.125V and 1.125V respectively
while RGB sync tips are all clamped to 250mV. CV mode
clamps Y and CV to 250mV while C is clamped to 1.l25V.
Sync clamp timing can be derived from theY or Green input
channel or from the external SYNC_IN pin.
• 0.26% differential gain, 0.11° differential phase
• Lead-free packaging
Applications
• Progressive scan
• Cable set top boxes
• Satellite set top boxes
• DVD players
All channels nominally accept AC coupled 1Vpp signals.
Selectable 0dB or 6dB gain allows the outputs to drive 1Vpp
or 2Vpp signals into AC or DC coupled terminated loads
with a 1Vpp input. Input signals cannot exceed 1.5Vpp and
outputs cannot exceed 2.5Vpp.
• HDTV
• Personal Video Recorders (PVR)
• Video On Demand (VOD)
The FMS6407 draws 525mW from a single 5.0V supply.
Functional Block Diagram
SYNC_IN
Sync Strip
Y
IN
Y
/ G
/ Y
OUT OUT
OUT
G
/ Y
8MHz, 15MHz, 30MHz, Bypass
gM
IN
IN
EXT_SYNC
250mV
Pb
IN
Pb
OUT
/ B
/ C
OUT OUT
B
/ C
8MHz, 15MHz, 30MHz, Bypass
gM
IN
IN
CV_SEL
Clamp
Control
1.125V
250mV
Selectable
0dB or 6dB
output gain
Pr
IN
Pr
/ R
/ CV
OUT OUT
OUT
R
/ CV
8MHz, 15MHz, 30MHz, Bypass
IN
IN
1.125V
250mV
RGB
gM
F
SEL0
0dB
F
SEL1
REV. 1I July 2005