FMS6407_05 Datasheet, PDF (1/17 Pages) Fairchild Semiconductor – Triple Video Drivers with Selectable HD/Progressive/SD/Bypass Filters

FMS6407
Triple Video Drivers with Selectable
HD/Progressive/SD/Bypass Filters
www.fairchildsemi.com
Features
• 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)
• 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
• 0.26% differential gain, 0.11° differential phase
• Lead-free packaging
Applications
• Progressive scan
• Cable set top boxes
• Satellite set top boxes
• DVD players
• HDTV
• Personal Video Recorders (PVR)
• Video On Demand (VOD)
Functional Block Diagram
Description
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.
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 the Y or Green input
channel or from the external SYNC_IN pin.
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.
The FMS6407 draws 525mW from a single 5.0V supply.
SYNC_IN
YIN
GIN / YIN
EXT_SYNC
PbIN
BIN / CIN
CV_SEL
PrIN
RIN / CVIN
RGB
FSEL0
FSEL1
Sync Strip
8MHz, 15MHz, 30MHz, Bypass
gM
250mV
Clamp
Control
1.125V
250mV
1.125V
250mV
8MHz, 15MHz, 30MHz, Bypass
gM
8MHz, 15MHz, 30MHz, Bypass
gM
YOUT / GOUT / YOUT
PbOUT / BOUT/ COUT
Selectable
0dB or 6dB
output gain
PrOUT / ROUT/ CVOUT
0dB
REV. 1I July 2005