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FN7173 반도체 회로 부품 판매점

Sync Separator/ 50% Slice/ S-H/ Filter/ Horizontal sync output



Intersil Corporation 로고
Intersil Corporation
FN7173 데이터시트, 핀배열, 회로
®
Data Sheet
August 15, 2002
EL4583
FN7173
Sync Separator, 50% Slice, S-H, Filter,
HOUT
The EL4583 extracts timing from video
sync in NTSC, PAL, and SECAM
systems, and non standard formats, or
from computer graphics operating at higher scan rates.
Timing adjustment is via an external resistor. Input without
valid vertical interval (no serration pulses) produces a default
vertical output.
Outputs are: composite sync, vertical sync, filter, burst/back
porch, horizontal, no signal detect, level, and odd/even
output (in interlaced scan formats only).
The EL4583 sync slice level is set to the mid-point between
sync tip and the blanking level. This 50% point is determined
by two internal sample and hold circuits that track sync tip
and back porch levels. It provides hum and noise rejection
and compensates for input levels of 0.5V to 2.0VP-P.
A built in filter attenuates the chroma signal to prevent color
burst from disturbing the 50% sync slice. Cut off frequency is
set by a resistor to ground from the Filter Cut Off pin.
Additionally, the filter can be by-passed and video signal fed
directly to the Video Input.
The level output pin provides a signal with twice the sync
amplitude which may be used to control an external AGC
function. A TTL/CMOS compatible No Signal Detect Output
flags a loss or reduction in input signal level. A resistor sets
the Set Detect Level.
The EL4583 is manufactured using Elantec’s high
performance analog CMOS process.
Pinout
EL4583
(16-PIN SO, PDIP)
TOP VIEW
FILTER CUT OFF 1
SET DETECT LEVEL 2
COMPOSITE SYNC OUT 3
FILTER INPUT 4
VERTICAL SYNC OUT 5
DIGITAL GND 6
FILTER OUTPUT 7
COMPOSITE VIDEO INPUT 8
16 ANALOG GND
15 HORIZONTAL SYNC OUT
14 VDD
13 ODD/EVEN OUTPUT
12 RSET*
11 BURST/BACK PORCH OUTPUT
10 NO SIGNAL DETECT OUTPUT
9 LEVEL OUTPUT
Features
• NTSC, PAL, and SECAM sync separation
• Single supply, +5V operation
• Precision 50% slicing
• Built-in programmable color burst filter
• Decodes non-standard vertical
• Horizontal sync output
• Sync. pulse amplitude output
• Same socket can be used for 8-pin EL4581
• Low-power CMOS
• Detects loss of signal
• Resistor programmable scan rate
• Few external components
• Available in 16-pin PDIP and 16-pin SO (0.150”) packages
Applications
• Video special effects
• Video test equipment
• Video distribution
• Multimedia
• Displays
• Imaging
• Video data capture
• Video triggers
Ordering Information
PART NUMBER PACKAGE
TAPE &
REEL
EL4583CN
16-Pin PDIP
-
EL4583CS
16-Pin SO (0.150”)
-
EL4583CS-T7 16-Pin SO (0.150”)
EL4583CS-T13 16-Pin SO (0.150”)
7”
13”
PKG. NO.
MDP0031
MDP0027
MDP0027
MDP0027
*Note: RSET must be a 1% register
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners. Manufactured under U.S. Patent 5,528,303.
Manufactured under License, U.S. Patents 5,486,869; 5,754,250.


FN7173 데이터시트, 핀배열, 회로
EL4583
Absolute Maximum Ratings (TA = 25°C)
VCC Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pin Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to VCC +0.5V
Operating Temperature Range . . . . . . . . . . . . . . . . . -40°C to +85°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Die Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
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.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
DC Electrical Specifications
PARAMETER
IDD
Clamp Voltage
Discharge Current
Discharge Current
Clamp Charge Current
Ref. Voltage VREF
Filter Reference Voltage, VRF
Level Reference Current
VOL Output Low Voltage
VOH Output High Voltage
VDD = 5V, TA = 25°C, RSET = 681k, RF = 22k, RLV = 82k
DESCRIPTION
MIN
VDD = 5V (Note 1)
Pins 4, 8, unloaded
1.3
Pins 4, 8, with Signal (VIN = 2V)
Pins 4, 8, no Signal (Note 2)
3
Pins 4, 8, VIN = 1V
Pin 12, VDD = 5V (Note 3)
Pin 1
2
1.5
0.35
Pin 2 (Note 4)
1.5
IOL = 1.6mA
IOH = -40µA
IOH = -1.6mA
4
2.4
TYP
2.5
1.55
6
10
3
1.75
0.5
2.5
350
4
MAX
4
1.8
12
4
2
0.65
3.5
800
UNIT
mA
V
µA
µA
mA
V
V
µA
mV
V
V
NOTES:
1. No video signal, outputs unloaded
2. At loss of signal (pin 10 high) the pull down current source switches to a value of 10µA
3. Tested for VDD 5V ±5%
4. Current sourced from pin 2 is VREF/RSET
Dynamic Specifications
RF = 22k, RSET = 681k, VDD = 5V, Video Input = 1VP-P, TA = 25°C, CL = 15pF, IOH = -1.6mA,
IOL = 1.6mA
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
Horizontal Pulse Width, Pin 15, tH
Vertical Sync Width, Pin 5, tVS
Burst/Back Porch Width, Pin 11, tB
Filter Attenuation
Comp. Sync Prop. Delay, tCS
Input Dynamic Range
(Note 1)
(Note 2)
(Note 1)
FIN = 3.6MHz (Note 3)
VIN (Pin 4)—Comp Sync
p-p NTSC Signal
3.8 5 6.2 µs
195 µs
2.7 3.7 4.7 µs
12 dB
250 400
ns
0.4 2 V
Slice Level
Level Out, Pin 9
Vertical Sync Default Time, tVSD
Loss of Signal Time-Out
Input Voltage = 1VP-P
VSLICE/VBLANK
Input Voltage = 1VP-P, Pin 4
(Note 4)
Pin 10
40 50 60 %
40 50 60
500 600 700 mV
27 36 57 µs
400 600 800
µs
Burst/Back Porch Delay, tBD
(See Figure 4)
250 400
ns
NOTES:
1. Width is a function of RSET
2. c/s, Vertical, Back porch and H are all active low, VOH = 0.8V; vertical is 3H lines wide of NTSC signal
3. Attenuation is a function of RF. See filter typical characteristics
4. Vertical pulse width in absence of serrations on input signal
2




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FN7173

Sync Separator/ 50% Slice/ S-H/ Filter/ Horizontal sync output - Intersil Corporation