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Part: EL4501
Category:
Description: Video Front End, 100MHz, DC-Restore, SYNC Separator, 5 Volt @
Company: Intersil Corporation
Datasheet: Download EL4501 datasheet File size : 7 kB
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EL4501
D a ta Sheet A pr i l 28, 2003 FN7327
Video Front End
The EL4501 is a highly-integrated Video Front End (VFE) incorporating all of the key signal conditioning functions for analog video signals. It provides a flexible frontend interface for analog or analog/digital video sub-systems. The VFE contains a high bandwidth DC-restore, an advanced sync separator and a data slicer with an adjustable threshold, configurable output and power-down mode. The VFE performs restoration of the DC level (blanking level) of a video signal and the recovery of all signal timing necessary for synchronization and control. Additionally, data embedded in the active video or VBI regions of the video signal may be extracted using the flexible data slicer incorporated into the VFE. The advanced sync separator exhibits excellent noise immunity by incorporating a digital brick wall filter and signal qualification algorithm. The DCrestored video amplifier is unity gain stable with an unloaded -3dB bandwidth of 100MHz. The input common mode voltage range extends from the negative rail to within 1.5V of the positive rail. When driving a 75 double terminated coaxial cable, the amplifier can drive to within 150mV of either rail. With 200V/µs slew rate, the amplifier is well suited for composite and component video applications. The VFE operates from a single 5V supply from -40°C to +85°C and is available in a reduced footprint 24-pin QSOP package.
Features
· DC-restore and sync separator · Wideband (100MHz) DC-restore · Advanced sync separator · Programmable data slicer · Single 5V operation · Diff gain/phase = 0.05%/0.03°, RL=10k, AV=1 · Low power (<75mW)
Applications
· Video capture & editing · Video projectors · Set top boxes · Security video · Embedded data recovery
Pinout
EL4501 (24-PIN QSOP) TOP VIEW
VFB 1 VIDEO IN 2 DS MODE 3 DS ENABLE 4 GND 5 24 VIDEO OUT 23 DS OUT 22 DS REF 21 REF IN 20 REF OUT 19 VS 18 VSD 17 SYNC AMP 16 SLICE MODE 15 BACK PORCH 14 ODD/EVEN 13 VERTICAL
Ordering Information
PART NUMBER EL4501I U EL4501I U-T 7 E L 4 5 0 1 I U - T 13 PACKAGE 24-Pin QSOP 24-Pin QSOP 24-Pin QSOP TAPE & REEL 7" 13" PKG. NO. M DP0040 MDP0040 MDP0040
GNDD 6 RFREQ 7 FSEL 8 SYNC IN 9 LOS 10 COMPOSITE 11 HORIZONTAL 12
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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. Manufactured under License, U.S. Patents 5,486,869; 5,754,250 All other trademarks mentioned are the property of their respective owners.
EL4501
Absolute Maximum Ratings (TA = 25°C)
Supply Voltage (VS to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . .+6V Pin Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . .GND -0.3V, VS +0.3V Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 125°C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Maximum Continuous Current (VIDEO OUT) . . . . . . . . . . . . . 50mA
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. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications
PARAMETER ISA ISD VS VSD
VS = VSD = 5V, GND = 0V, TA = 25°C, Input Video = 1VP-P, RFREQ = 130k CONDITIONS No load No load, VIN = 0V MIN 7.5 1.9 4.5 4.5 T YP 10.5 2. 3 MAX 13. 5 4 5. 5 5.5 UNIT mA mA V V
DESCRIPTION Input Supply Current Digital Supply Current Input Supply Voltage Range Digital Input Supply Voltage Range
VIDEO AMPLIFIER SECTION VOP Positive Output Voltage Swing (VIDEO OUT) (Note 1) RL = 150 to VS / 2 RL = 150 to GND RL = 1k to VS / 2 VON Negative Output Voltage Swing (VIDEO OUT) RL = 150 to VS / 2 (Note 1) RL = 150 to GND RL = 1k to VS / 2 +IOUT -IOUT dG dP BW Positive Output Current (VIDEO OUT) Negative Output Current (VIDEO OUT) RL = 10 to VS / 2 RL = 10 to VS / 2 60 - 50 4. 6 5 4. 2 0 4. 8 5 4. 7 0 4. 6 0 4. 9 0 0. 1 5 0. 0 6 0. 0 5 70 -60 0.05 0.03 100 60 8 80 96 0/3.5 to 0.1%, VIN = 0V to 3V 35 115 1.5 RL = no load, VOUT = 0.5V to 3V RL = 150 to GND, VOUT = 0.5V to 3V DC-RESTORE SECTION CMIR VOS TCVOS IB VREF Common Mode Input Range (REF IN) Input Offset Voltage Input Offset Voltage Temperature Coefficient Input Bias Current (REF IN) Reference Output Voltage (REF OUT) VCM = 0V to 3.5V IOUT = +2mA to -0.5mA - 10 1.15 DC restored 0/ 3 . 5 ±20 10 0. 0 0 1 1.3 10 1. 4 V mV µV/°C µA V 65 50 0. 3 0 0. 2 5 0. 2 0 V V V V V V mA mA % ° MHz M Hz MHz V/µs V ns k pF dB dB
Differential Gain Error (VIDEO OUT) (Note 2) AV = 1, RL = 10k, RF = 0 Differential Phase Error (VIDEO OUT) (Note 2) Bandwidth AV = 1, RL = 10k, RF = 0 -3dB, G = 1, RL = 10k to GND, RF = 0 -3dB, G = 1, RL = 150 to GND, RF = 0
BW1 SR VRL tS RIN CIN AVOL
Bandwidth Slew Rate Ref Level Range Settling Time Input Resistance (VIDEO IN) Input Capacitance (VIDEO IN) Open Loop Voltage Gain
±0.1dB, G = 2, RL = 150 to GND 25% to 75%, 3.5VP-P, RL = 150, RF = 0
2
EL4501
Electrical Specifications
PARAMETER IRMAX VS = VSD = 5V, GND = 0V, TA = 25°C, Input Video = 1VP-P, RFREQ = 130k (Continued) CONDITIONS MIN T YP 18.5 MAX UNIT µA
DESCRIPTION Available Restore Current (VFB)
DATA SLICER SECTION IIH IIL VIH VIL VOH VOL IOUT IB VOS VHYS tPD tR/F Input High Current (DS MODE & DS ENABLE) VIH = 5V 6 200 4.5 0.5 IOUT = -1mA IOUT = +1mA RL = 10 to 2.5V DS REF = 0V to 5V 8 - 10 - 20 ±5 50% to 50% 10% to 90%, RL = 150k, CL = 5pF 18 1.2 4.75 4.9 0.1 11 0. 0 0 1 10 + 20 0. 2 5 10 350 µA nA V V V V mA µA mV mV ns ns
Input Low Current (DS MODE & DS ENABLE) VIL = 0V Input High Voltage (DS MODE & DS ENABLE) Input Low Voltage (DS MODE & DS ENABLE) Output High Voltage (DS OUT) Output Low Voltage (DS OUT) Short Circuit Current (DS OUT) Input Bias Current (DS REF) Input Offset Voltage Hysteresis Propagation Delay Rise/Fall Time
SYNC SEPARATOR SECTION IIH IIL VIH VIL VOH VOL VTHRSHA VTHRSHF VSI RINSI VRANGE tCD tCDF tBD tBDF tHD tBW tHW tHWF tVW tVDD tVDDF fH Input High Current (FSEL & SYNC MODE) Input Low Current (FSEL & SYNC MODE) Input High Voltage (FSEL & SYNC MODE) Input Low Voltage (FSEL & SYNC MODE) Output High Voltage Output Low Voltage Adaptive Slice Level Fixed Slice Threshold SYNC IN Reference Voltage SYNC IN Input Impedance Input Dynamic Range COMPOSITE Delay COMPOSITE Delay BACK PORCH Delay BACK PORCH Delay HORIZONTAL Delay BACK PORCH Width HORIZONTAL Width HORIZONTAL Width VERTICAL Width VERTICAL Default Delay VERTICAL Default Delay Horiz Scan Rate FSEL = 0, from 50% of sync leading edge FSEL = 1, from 50% of sync leading edge FSEL = 0, from 50% of trailing sync edge FSEL = 1, from 50% of trailing sync edge FSEL = 0/1, from 50% of sync leading edge FSEL = 0/1 F SEL = 0 F SEL = 1 FSEL = 0/1, standard NTSC FSEL = 0 FSEL = 1 15 0.5 25 150 125 250 365 2. 8 1. 1 1. 2 196 26.5 35 225 170 420 470 3.2 1.3 1.5 198 31.2 31.5 130 IOH = -1.6mA IOL = +1.6mA SYNC MODE = 0V SLICE MODE = VS 40 80 50 100 1.8 115 2. 0 45 280 225 550 585 4. 1 1. 5 1. 8 200 35. 9 4.6 0.4 60 120 VIH = 5V VIL = 0V -1 -1 4. 5 0. 5 1 1 µA µA V V V V % mV V k VP-P ns ns ns ns ns µs µs µs µs µs µs kHz
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EL4501
Electrical Specifications
PARAMETER VLOSE VLOSD tJIT ASA RSA VRFREQ NOTES: 1. RL is Total Load Resistance due to Feedback Resistor and Load Resistor. 2. AC signal amplitude = 286mVPP, F = 3.58MHz, REF IN is swept from 0.8V to 3.4V, RL is DC coupled. VS = VSD = 5V, GND = 0V, TA = 25°C, Input Video = 1VP-P, RFREQ = 130k (Continued) CONDITIONS Minimum sync amplitude to enable outputs Maximum sync amplitude to disable outputs All sync separator outputs 1.7 MIN T YP 120 80 5 2. 0 200 RFREQ = 13k to 130k 1.15 1.28 1.4 2.3 V MAX UNIT mV mV ns
DESCRIPTION Analog LOS Enable Threshold Analog LOS Disable Threshold Output Jitter SYNC AMP Gain SYNC AMP Output Impedance RFREQ Reference Voltage
Typical Performance Curves
4 NORMALIZED MAGNITUDE (dB) 2 0 -2 -4 -6 100K AV=2 RF=1k AV=5 RF=1k 1M 10M 100M 45 AV=1 RF=0 PHASE (°) 0 -45 -90 -135 AV=2 RF=1k AV=5 RF=1k VREF_IN=1.3V RL=150 1M 10M 100M AV=1 RF=0
VREF_IN=1.3V RL=150
-180 100K
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 1. NON-INVERTING FREQUENCY RESPONSE (GAIN)
FIGURE 2. NON-INVERTING FREQUENCY RESPONSE (PHASE)
4 NORMALIZED MAGNITUDE (dB) 2 0 RL=150 -2 -4 VREF_IN=1.3V RF=0 AV=1 1M 10M 100M RL=1k RL=10k NORMALIZED MAGNITUDE (dB)
8 4 0 CL=15pF
CL=39pF
CL=0pF -4 -8 VREF_IN=1.3V RF=150 AV=1 1M 10M 100M
-6 100K
-12 100K
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS RL
FIGURE 4. FREQUENCY RESPONSE FOR VARIOUS CL
4
EL4501 Typical Performance Curves (Continued)
4 RF=2k NORMALIZED GAIN (dB) 2 0 RF=500 -2 -4 NORMALIZED GAIN (dB) RF=1k 2 0 RL=75 -2 -4 RL=150 4 RL=10k
AV=2 RL=150 1M 10M 100M
AV=2 RF=1k 1M 10M 100M
-6 100K
-6 100K
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 5. FREQUENCY RESPONSE FOR VARIOUS RF
FIGURE 6. FREQUENCY RESPONSE FOR VARIOUS RL
4 NORMALIZED MAGNITUDE (dB) 2 0
CL=100pF CL=68pF CL=47pF CL=15pF IMPEDANCE ()
100
AV=1 RF=0
10
-2 -4 VREF_IN=1.3V RF=1k RL=150 AV=2 1M CL=0pF
1
-6 100K
10M
100M
0.1 10K
100K
1M FREQUENCY (Hz)
10M
100M
FREQUENCY (Hz)
FIGURE 7. FREQUENCY RESPONSE FOR VARIOUS CL
FIGURE 8. CLOSED LOOP OUTPUT IMPEDANCE
90 70 GAIN (dB) 50 30 10 -10 1K GAIN RL=150 GAIN RL=10k
PHASE RL=150 PHASE RL=10k
0 -45 -90 -135 -180 -270 100M PSRR, CMRR (dB) PHASE (°)
10
-10
-30 CM RR -50 PSRR VS PSRR VSD -70 1K 10K 100K 1M 10M 100M
10K
100K
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 9. OPEN LOOP GAIN AND PHASE vs FREQUENCY
FIGURE 10. PSRR AND CMRR vs FREQUENCY - VIDEO AMP
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