ML6427CSXNL Fairchild Semiconductor, ML6427CSXNL Datasheet

ML6427CSXNL

Manufacturer Part Number
ML6427CSXNL
Description
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of ML6427CSXNL

Lead Free Status / Rohs Status
Compliant
Features
• Cable drivers for Peritel (SCART), Enhanced Video
• 7.1MHz CV, RGB, and S-video, NTSC or PAL filters with
• Quad reconstruction filter or dual anti-aliasing filter
• 43dB stopband attenuation at 27MHz
• 1dB flatness up to 4.8MHz
• 12ns group delay flatness up to 10MHz
• 0.4% differential gain, 0.4º differential phase on all
• 0.4% total harmonic distortion on all channels
• Master-slave configuration allows up to 8 multiplexed,
Block Diagram
ML6427
75 Ω Quad Video Cable Drivers and Filters with
Switchable Inputs
Connector (EVC), and standard video connectors, 75 Ω
cable drivers for CV, S-video, and RGB
mux inputs and output channel mux
channels
filtered output signals
23
24
10
11
12
2
3
4
7
8
9
1
SYNCIN
SYNCIN
SYNCOUT
CV INF A/Y2*
CV INF B/Y3*
R IN A/Y4
R IN B/Y5
G IN A/Y6
G IN B/Y2
B IN A/C1
B IN B/C2
A/ B MUX
MUX
MUX
MUX
MUX
TIMER
SYNC
*CAN ALSO INPUT SYNC ON GREEN SIGNALS
REQUIRED
SYNC STRIP
TRANSCONDUCTANCE
TRANSCONDUCTANCE
TRANSCONDUCTANCE
TRANSCONDUCTANCE
UNFILTERED CHANNEL
TIMER
SYNC
ERROR AMP
ERROR AMP
ERROR AMP
ERROR AMP
V CCO RGB
17
TRANSCONDUCTANCE
+
+
+
+
0.5V
0.5V
0.5V
0.75V
V CCO CV
ERROR AMP
22
4th-ORDER
4th-ORDER
4th-ORDER
4th-ORDER
General Description
The ML6427 is a quad 4th-order Butterworth lowpass
reconstruction filter plus quad video amplifier optimized for
minimum overshoot and flat group delay. Each filter channel
has a two-input multiplexer that switches between two
groups of quad video signals. Applications driving SCART
and EVC cables are supported for composite, component,
and RGB video.
1V
ML6427 where they are DC restored. Outputs are AC
coupled and drive 2V
can provide DC coupled outputs for certain applications.
A fifth unfiltered channel is provided to support an additional
analog composite video input. A swapping multiplexer
between the two composite channels allows the distribution
amplifiers to output from either input.
Several ML6427s can be arranged in a master-slave configu-
ration where an external sync can be used for CV and RGB
outputs.
FILTER
FILTER
FILTER
FILTER
P-P
V CC
6
input signals from DACs are AC coupled into the
+
0.5V
SWAP CVU
P-P
14
SWAP
MUX
into a 150 Ω load. The ML6427
GNDO
13
www.fairchildsemi.com
19
SWAP CVF
×2
×2
×2
×2
×2
GND
5
REV. 1.0.0 8/28/03
CV OUT 1/Y OUT A
CV OUT /Y OUT B
G OUT /Y OUT D
R OUT /Y OUT C
B OUT /C OUT
21
20
18
16
15

Related parts for ML6427CSXNL

ML6427CSXNL Summary of contents

Page 1

ML6427 75 Ω Quad Video Cable Drivers and Filters with Switchable Inputs Features • Cable drivers for Peritel (SCART), Enhanced Video Connector (EVC), and standard video connectors, 75 Ω cable drivers for CV, S-video, and RGB • 7.1MHz CV, RGB, ...

Page 2

ML6427 Pin Configuration A/ B MUX CV INU /Y1 CV INF A/Y2 CV INF B/C2 Pin Description PIN NAME 1 A/ MUX ...

Page 3

PRODUCT SPECIFICATION Pin Description (continued) PIN NAME Analog BLUE video output or chroma output from either B OUT OUT Analog GREEN video output or luma output from either G OUT OUT 17 V ...

Page 4

ML6427 Symbol Parameter f 0.5dB Bandwidth 0.5dB (Flatness. All Filtered Channels) f –3dB Bandwidth C (Flatness. All Filtered Channels) 0.8f 0 Attenuation, All Filtered C C Channels f Stopband Rejection SB V Input Signal Dynamic Range i (All ...

Page 5

PRODUCT SPECIFICATION Functional Description The ML6427 is a quad monolithic continuous time analog video filter designed for reconstructing signals from four video D/A sources. The ML6427 is intended for use in AC coupled input and output applications. The filters approximate ...

Page 6

PRODUCT SPECIFICATION 1 0 –1 –2 –3 –4 0 0.1 FREQUENCY (MHz) Figure 1. Passband Flatness (Normalized) All outputs. Passband is ripple-free Figure 3. Group Delay, all Outputs Low frequency group delay is 62ns. At ...

Page 7

PRODUCT SPECIFICATION Typical Applications Basic Applications The ML6427 provides channels for two banks of inputs for RGB and composite video. The R and G channels can be used as luma inputs while the B channel can be used as a ...

Page 8

ML6427 Using the ML6427 for PAL Applications The ML6427 can be optimized for PAL video by adding frequency peaking to the composite and S-video outputs. Figure 10 illustrates the use of an additional external capaci- tor (330pF) in parallel with ...

Page 9

PRODUCT SPECIFICATION 19 GNDO CV INU / INF A/Y2 COMPOSITE 3 VIDEO IN CV INF B/ A/Y4 LUMA A/C1 ...

Page 10

ML6427 19 GNDO GND CV INU / INF A/Y2 COMPOSITE 3 VIDEO IN CV INF B/ A/ B/Y5 1kΩ A/Y6 9 LUMA B/Y7 10 ...

Page 11

PRODUCT SPECIFICATION VIDEO PLAYER 0.1µ INU / INF A/Y2 COMPOSITE VIDEO INF B/Y3 4 0.1µ A/Y4 7 VIDEO GAME R IN B/Y5 CONSOLE ...

Page 12

ML6427 OSD (ON-SCREEN DISPLAY) PROCESSOR 13.5MHz/ ML6431 27MHz GENLOCK/CLOCK GENERATOR Figure 9. Synchronizing the Filter Delay with Fast Blanking or Alpha-Key Signals in OSD Applications GNDO GND V CCO RGB V CCO CV CV INU /Y1 2 ...

Page 13

PRODUCT SPECIFICATION -0.5 0 0.5 1 1.5 2 2.5 0 Figure 11. NTSC/PAL Video Frequency Response With and Without Peaking Capacitor Figure 12. Stopband Rejection at 27MHz With and Without Peaking Capacitor 10 ...

Page 14

ML6427 5V GND C14 0.1µ 75Ω C15 0.1µ 75Ω C16 0.1µ 75Ω C17 0.1µ C18 0.1µF R4 75Ω C19 0.1µF CIN 1 C20 0.1µF R5 ...

Page 15

PRODUCT SPECIFICATION Mechanical Dimensions 0.600 - 0.614 (15.24 - 15.60) 24 PIN 0.024 - 0.034 0.050 BSC (0.61 - 0.86) (1.27 BSC) (4 PLACES) 0.090 - 0.094 (2.28 - 2.39) REV. 1.0.0 8/28/03 Inches (Millimeters) Package: S24 ...

Page 16

... NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems ...

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