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PDF FMS6414CSX Data sheet ( Hoja de datos )
| Número de pieza | FMS6414CSX | |
| Descripción | Dual Channel Video Drivers with Integrated Filters | |
| Fabricantes | Fairchild Semiconductor | |
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FMS6414
Dual Channel Video Drivers with Integrated Filters
Video Features
• Dual Integrated Video Low Pass reconstruction filters on
outputs
• Integrated output drivers provide low impedance outputs
and deliver 2Vp-p (6dB gain) composite video into 150Ω.
• 7.1MHz 4th order video filters
• 0.4% differential gain with 0.4° differential phase
• Integrated DC Restore / Clamp Circuitry
Applications
• CCTV
• Cable and Satellite Set top boxes
• DVD players
• Televisions
• HDTV
• Personal Video Recorders (PVRs)
• Video On Demand (VOD)
General Description
The FMS6414 Dual Channel Video Filter – Driver Chip
offers comprehensive video filtering for set top box or DVD
applications. This part consists of two 4th order video Low
Pass Filters for video filtering. This device integrates video
drivers so that it can directly drive to the outside world.
The video signals are filtered at 7.1MHz and buffered to
drive 2Vp-p into AC coupled 150Ω loads with up to 35pF of
load capacitance at the output pin. The filters approximate a
4th-order Butterworth characteristic with an optimization
toward low overshoot and flat group delay. Likewise, they
are capable of driving a 75Ω load at 1Vp-p. There is an
option for the video output to be DC coupled which limits
the drive to 1 output.
Functional Block Diagram
1 YIN
SYNC STRIP,
REF, AND TIMING
x2
YOUT 8
gM
2
NC (Reserved)
1V
FMS6414
3
GND_VIDEO
7
VCC_VIDEO
6
NC (Reserved)
4 CIN
gM
1V
COUT 5
x2
REV. 1.0.1 6/27/02
1 page  
FMS6414
PRODUCT SPECIFICATION
Electrical Characteristics
1Vp-p signal at room temperature
Video Characteristics – Unless otherwise noted, typical output loading on video output is 150Ω.
Symbol
Parameter
Condition
VCC_VIDEO=+5.0V ±10%
Min Typ
AVYC
Low Frequency Gain
(YOUT, COUT)
at 400KHz
5.75 6.0
YSYNC YOUT Output Level (During Sync) Sync Present on YIN
0.75 1.0
CSYNC COUT Output Level (During Sync) Sync Present on YIN
1.6 2.0
tCLAMP Clamp Response Time
(Y Channel)
Settled to Within 10mV, 0.1µF cap
on YIN and CIN
5
f1dB
–1.0dB Bandwidth (Flatness)
(YOUT, COUT)
No Peaking Cap (Note 1)
4.0 4.5
fC –3dB Bandwidth (Flatness)
(YOUT, COUT)
6.7 7.1
fSB Stopband Rejection
(YOUT, COUT)
fIN = 27MHz to 100MHz worst case -37 -42
Vi
Input Signal Dynamic Range
AC Coupled
(All Channels)
1.3 1.4
ISC Output Short Circuit Current
(All Channels)
YOUT, COUT to GND (Note 2)
40
CL Output Shunt Capacitance
All Channels
35
dG Differential Gain
YOUT, COUT
0.4
dP Differential Phase
YOUT, COUT
0.4
THD
Output Distortion (All Channels)
YOUT/ COUT = 1.8VP-P at 3.58/
4.43MHz
0.8
XTALK Crosstalk
From CIN of 0.5VP-P at 3.58MHz to
YOUT
-55
From YIN Input of 0.4VP-P at
3.58MHz, to COUT
-58
PSRR PSRR (All Channels)
0.5VP-P (100kHz) at VCC
-40
SNR
Y, C Channel
NTC-7 weighting 4.2 MHz lowpass
-75
tpd Group Delay (Y, C)
100kHz
70
∆tpd
Group Delay Deviation from
Flatness (Y, C)
to 3.58MHz (NTSC)
to 4.43MHz (PAL)
9
7
tSKEW Skew between YOUT and COUT At 1MHz
0
Max Units
6.25 dB
1.25 V
2.4 V
ms
MHz
MHz
dB
VP-P
80 mA
pF
%
°
%
dB
dB
dB
dB
ns
ns
ns
ns
Notes:
1. Peaking capacitor increases output at 4.2MHz nominally by 0.7dB
2. Sustained short circuit protection limited to 10 seconds
REV. 1.0.1 6/27/02
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet FMS6414CSX.PDF ] | |
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