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EL1883ISZ

P1-P3P4-P6P7-P9
1
®
FN7010.2
EL1883
Sync Separator with Horizontal Output
The EL1883 video sync separator is manufactured using
Elantec’s high performance analog CMOS process. This
device extracts sync timing information from both standard
and non-standard video input and also in the presence of
Macrovision pulses. It provides composite sync, vertical
sync, burst/back porch timing, and horizontal outputs. Fixed
70mV sync tip slicing provides sync edge detection when the
video input level is between 0.5V
P-P
and 2V
P-P
(sync tip
amplitude 143mV to 572mV). A single external resistor sets
all internal timing to adjust for various video standards. The
composite sync output follows video in sync pulses and a
vertical sync pulse is output on the rising edge of the first
vertical serration following the vertical pre-equalizing string.
For non-standard vertical inputs, a default vertical pulse is
output when the vertical signal stays low for longer than the
vertical sync default delay time. The horizontal output gives
horizontal timing with pre/post equalizing pulses.
The EL1883 is available in an 8-pin SO package and is
specified for operation over the full -40°C to +85°C
temperature range.
Features
• NTSC, PAL, SECAM, non-standard video sync separation
• Fixed 70mV slicing of video input levels from 0.5V
P-P
to
2V
P-P
• Low supply current - 1.5mA typ.
• Single 3V to 5V supply
• Composite sync output
• Vertical output
• Horizontal output
• Burst/back porch output
• Macrovision compatible
• Available in 8-pin SO package
• Pb-Free plus anneal available (RoHS compliant)
Applications
• Video amplifiers
• PCMCIA applications
•A/D drivers
• Line drivers
• Portable computers
• High speed communications
• RGB applications
• Broadcast equipment
• Active filtering
Demo Board
• A dedicated demo board is available
Pinout
EL1883
(8-PIN SO)
TOP VIEW
Ordering Information
PART
NUMBER
PART
MARKING
TAPE &
REEL PACKAGE
PKG.
DWG. #
EL1883IS 1883IS - 8-Pin SO MDP0027
EL1883IS-T7 1883IS 7” 8-Pin SO MDP0027
EL1883IS-T13 1883IS 13” 8-Pin SO MDP0027
EL1883ISZ
(See Note)
1883ISZ - 8-Pin SO
(Pb-free)
MDP0027
EL1883ISZ-T7
(See Note)
1883ISZ 7” 8-Pin SO
(Pb-free)
MDP0027
EL1883ISZ-T13
(See Note)
1883ISZ 13” 8-Pin SO
(Pb-free)
MDP0027
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
COMPOSITE SYNC OUT
COMPOSITE VIDEO IN
VERTICAL SYNC OUT
GND
VDD
HORIZONTAL OUTPUT
RSET
BURST/BACK
PORCH OUTPUT
1
2
3
4
8
7
6
5
Data Sheet April 24, 2006
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003, 2004, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified
temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Absolute Maximum Ratings (T
A
= 25°C)
V
CC
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V
Pin Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V
CC
+0.5V
Operating Ambient Temperature Range . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
DC Electrical Specifications V
DD
= 3.3V, T
A
= 25°C, R
SET
= 681kΩ, Unless Otherwise Specified.
PARAMETER DESCRIPTION MIN TYP MAX UNIT
I
DD
, Quiescent V
DD
= 5V 0.75 1.5 3 mA
Clamp Voltage Pin 2, I
LOAD
= -100µA 1.35 1.5 1.65 V
Clamp Discharge Current Pin 2 = 2V 6 12 16 µA
Clamp Charge Current Pin 2 = 1V -0.85 -0.65 -0.45 mA
R
SET
Pin Reference Voltage Pin 6 1.1 1.22 1.35 V
V
OL
Output Low Voltage I
OL
= 1.6mA 0.24 0.5 V
V
OH
Output High Voltage I
OH
= -40µA 3 3.2 V
I
OH
= -1.6mA 2.5 3.0 V
Dynamic Characteristics
PARAMETER DESCRIPTION MIN TYP MAX UNIT
Comp Sync Prop Delay, t
CS
See Figure 13 35 75 ns
Horizontal Sync Delay, t
HS
40 80 ns
Horizontal Sync Width 3.8 5.2 6.2 µs
Vertical Sync Width, t
VS
Normal or Default Trigger, 50%-50% 190 230 300 µs
Vertical Sync Default Delay, t
VSD
See Figure 14 35 62 85 µs
Burst/Back Porch Delay, t
BD
See Figure 13 120 200 300 ns
Burst/Back Porch Width, t
B
See Figure 13 2.5 3.5 4.5 µs
Input Dynamic Range Video Input Amplitude to Maintain Slice
Level Spec, V
DD
= 5V
0.5 2 V
P-P
Slice Level V
SLICE
above V
CLAMP
50 70 90 mV
EL1883
3
Pin Descriptions
PIN NUMBER PIN NAME PIN FUNCTION
1 Composite Sync Out Composite sync pulse output; sync pulses start on a falling edge and end on a rising edge
2 Composite Video In AC coupled composite video input; sync tip must be at the lowest potential (positive picture phase)
3 Vertical Sync Out Vertical sync pulse output; the falling edge of vert sync is the start of the vertical period
4 GND Supply ground
5 Burst/Back Porch
Output
Burst/back porch output; low during burst portion of composite video
6 RSET (Note) An external resistor to ground sets all internal timing; a 681k 1% resistor will provide correct timing for
NTSC signals
7 Horizontal Output Horizontal output; falling edge active
8 VDD 5V Positive supply (5V)
NOTE: R
SET
must be a 1% resistor
Typical Performance Curves
FIGURE 1. R
SET
vs HORIZONTAL FREQUENCY FIGURE 2. BURST/BACK PORCH DELAY vs R
SET
FIGURE 3. HORIZONTAL SYNC WIDTH vs R
SET
FIGURE 4. BURST/BACK PORCH WIDTH vs R
SET
V
DD
= 3V, V
DD
= 5V, T
A
= 25°C
10 20 30 40 50 60 70
FREQUENCY (kHz)
900
800
700
600
500
400
300
200
100
0
R
SET
(kΩ)
T
A
= 25°C
V
DD
=3V
V
DD
=5V
100 200 300 400 500 600 800
R
SET
(kΩ)
700
300
250
200
150
100
50
200
0
BURST BACK PORCH DELAY (ns)
V
DD
=3V
V
DD
=5V
T
A
= 25°C
100 200 300 400 500 600 800
R
SET
(kΩ)
700
7
6
5
4
3
2
1
0
HORIZONTAL SYNC WIDTH (µs)
T
A
= 25°C
100 300 500 900
R
SET
(kΩ)
700
4.5
4
3.5
3
2.5
2
1
0
BURST BACK PORCH WIDTH (µs)
1.5
0.5
V
DD
=5V
V
DD
=3V
EL1883
P1-P3P4-P6P7-P9

EL1883ISZ

Mfr. #:
Buy EL1883ISZ
Manufacturer:
Renesas / Intersil
Description:
Video ICs EL1883ISZ SYNC SEPARATOR
Lifecycle:
New from this manufacturer.
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