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EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Features
* * * * 4:1 multiplexer with monitor out DC-restore amplifier 5V operation 500MHz bandwidth
General Description
The EL4101C VFE (Video Front End) is designed to perform the basic input processing functions in an analog video system as well as provide analog input processing for digital video systems. The EL4101C VFE contains a 4:1 MUX input and a DC-restore amplifier. The MUX input can be used to select which input to use. The DC-restore allows the input signal to be positioned to the correct voltage level for either analog or digital processing. A buffered output of the MUX selection is also available for use as a monitor output. With a 500MHz bandwidth and only 40mA supply current, the EL4101C is ideal for use in portable and fixed projectors, as well as HDTV, DTV and other high performance video applications. The EL4101C is available in the 24-pin QSOP package and is specified for operation over the full -40C to +85C temperature range.
Applications
* * * * * * HDTV/DTV analog inputs Video projectors Computer monitors Set top boxes Security video Broadcast video equipment
Ordering Information
Part No. EL4101CU Package 24-Pin QSOP Tape & Reel Outline # MDP0040
Connection Diagram
HPULSE 1 HOLD 2 GNDL2 SIG0 3 IN0 +5V SIG1 5 IN1 6 GNDI SIG2 7 IN2 -5V SIG3 9 IN3 10 N.C. LOGICD0 LOGICD1 11 D0 12 D1 MFDBK 16 GNDL 15 PDWN 14 N.C. 13 LOGICPD 8 VS1VS2- 18 MOUT 17 -5V RFM RGM Monitor Out RLM=150 VOUT 20 VS2+ 19 +5V 4 VS1+ DCFDBK 22 VFDBK 21 RFV Video Out RLV=150 RGV CAP 24 DCREF 23 DCV 0.33F
August 9, 2001
Note: Pin #6 should be a good high frequency ground
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a "controlled document". Current revisions, if any, to these specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
(c) 2001 Elantec Semiconductor, Inc.
EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Absolute Maximum Ratings (T
A
= 25C)
Values beyond absolute maximum ratings can cause the device to be prematurely damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Supply Voltage (VS+ to VS-) 11V Input Voltage VS- - 0.3V, VS+ +0.3V
Storage Temperature Range Ambient operating Temperature Operating Junction Temperature Power Dissipation
-65C to +150C -40C to +85C 125C See Curves
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 Characteristics
VS1+ = VS2+ = 5V, VS1- = V S2- = -5V, RFV = RGV = RFM = RGM =375, R LV = RLM = 150, CLV = CLM = 3p, CH = 0.33n, GAIN = 2. Parameter Supply IS1+ IS IS2+ IS1S+ ISSIS2S+ Input IB IBO VIH VIL IIL IIH tSH Output VOSM VOS VOS VOH VOL ISC SR SRM OS OSM tS tSM VREF tSD VOHS VOSB ICCL IDC Output Offset Voltage - Monitor DC-restore Offset Voltage Output Offset Voltage Drift - Video Output Voltage Swing, Pos. Output Voltage Swing, Neg. Output Short Circuit Current Slew Rate - Video Out (20%-80%) Slew Rate - Monitor Out (20%-80%) Output Overshoot, Video Output Overshoot, Monitor Settling Time to 1%, Video Settling Time to 1%, Monitor DC-restore -Reference Voltage Range DC-restore - Settling Time to 1% DC-restore - Video Output Hold Step DC-restore - Offset vs. Black Level DC-restore - Charge Current Limit, ICAP DC-restore - Droop Current, ICAP VIN = -2V to +2V Sample mode on S - H transition Sample mode on Sample mode on Hold mode on -1 210 -30 -2 VIN = 0V Auto-zero on, DCREF = 0 Auto-zero on AV = +1, monitor & video outputs AV = +1, monitor & video outputs RL = 10, source or sink VOUT = 4VP-P VOUT = 4VP-P VOUT = 1VP-P VOUT = 1VP-P Hold mode 3.44 -3.43 65 1000 1250 -400 -5 18 TBD 3.5 -3.5 100 2100 2100 TBD TBD 10 10 2.5 -0.5 -0.6 260 1 345 30 2 140 4500 3900 420 5 mV mV V/C V V mA V/s V/s % % ns ns V s mV mV/V A nA Input Bias Current Input Bias Current Drift with Temp. Input High Voltage Input Low Voltage Low Input Current for D0, D1, PDWN, HOLD High Input Current for D0, D1, PDWN, HOLD Sample and Hold Delay Time VIN = 0V VIN =5V 25 0 48 12 VIN = 0V VIN = 0V 2 0.8 75 10 -22.4 -2.2 TBD 6.1 A nA/C V V A A ns Positive Supply Current 1 Negative Supply Current Positive Supply Current 2 Positive Supply Current 1 in Standby Negative Supply Current in Standby Positive Supply Current 2 in Standby VIN = 0, I L = 0 Standby Standby Standby 25 38 15 3.8 2 236 mA mA mA mA mA A Parameter Description Conditions Min Typ Max Unit
AC Performance
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EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Electrical Characteristics
VS1+ = VS2+ = 5V, VS1- = V S2- = -5V, RFV = RGV = RFM = RGM =375, R LV = RLM = 150, CLV = CLM = 3p, CH = 0.33n, GAIN = 2. Parameter BW BWM 0.1BW 0.1BWM Vp Vpm dP dG dPM dPG en enm Parameter Description 3dB Bandwidth, Video Out 3dB Bandwidth, Monitor Out 0.1dB Flat Bandwidth, Video Out 0.1dB Flat Bandwidth, Monitor Out Peaking, Video Peaking, Monitor Diff. Phase @3.58MHz, Video Diff. Gain @3.58MHz, Video Diff. Phase @3.58MHz, Monitor Diff. Gain @3.58MHz, Monitor Noise Voltage at Input for VOUT Noise Voltage at Input for MOUT Crosstalk [1] @10MHz Crosstalk [1] @100MHz 3 channel hostile 3 channel hostile Conditions Min Typ 500 1000 25 18 2.4 4.5 TBD TBD TBD TBD TBD TBD -45 -20 Max Unit MHz MHz MHz MHz dB dB % % nV/Hz nV/Hz dB dB
1. Total unwanted output normalized by wanted (or expected) output; add -10dB to get channel-to-channel isolation
Parallel Programming Truth Table
Inputs PDWN 0 0 0 0 1 D1 0 0 1 1 X D0 0 1 0 1 X State IN0 Selected IN1 Selected IN2 Selected IN3 Selected Standby - Powered Down
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EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Pin Descriptions
Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 PDWN GNDL MFDBK MOUT VS2VS2+ VOUT VFDBK DCFDBK DCREF CAP Logic Input Logic Ground High Frequency Signal High Frequency Signal Power Power High Frequency Signal High Frequency Signal Analog Signal Analog Signal Analog Signal D0 D1 Logic Input Logic Input Pin Name HOLD GNDL2 IN0 VS1+ IN1 GNDI IN2 VS1IN3 Pin Type Logic Input Logic Ground High Frequency Signal Power High Frequency Signal Analog Signal High Frequency Signal Power High Frequency Signal Hold pulse for DC-restore function Logic ground for "hold" buffer Video input #0 Positive power pin for quiet supply currents Video input #1 Reference voltage for attenuation function Video input #2 Negative power pin for quiet supply currents Video input #3 No connection Parallel control bit #0 Parallel control bit #1 No connection Power down input to put chip in low current standby mode Logic ground for D0, D1, PWDN buffers Monitor amplifier feedback Monitor amplifier output Negative power pin for heavy, pulsatile supply currents Positive power pin for heavy, pulsatile supply currents Video amplifier output Video amplifier feedback Input to sample circuit Reference DC voltage representing black level Sample storage capacitor for DC-restore circuit Pin Description
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EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Block Diagram (Gain of 1)
V S+
MFDBK + MOUT
750
Input Video
IN0
Input Video
IN1
+ -
VOUT 750 VFDBK DCFDBK DCREF
Input Video
IN2
+ -
Input Video
IN3
HOLD
D0 D1
CAP CH
GNDL
GND
GNDL2
VS-
PDWN
5
EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.
WARNING - Life Support Policy
Elantec, Inc. products are not authorized for and should not be used within Life Support Systems without the specific written consent of Elantec, Inc. Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. Products in Life Support Systems are requested to contact Elantec, Inc. factory headquarters to establish suitable terms & conditions for these applications. Elantec, Inc.'s warranty is limited to replacement of defective components and does not cover injury to persons or property or other consequential damages.
Printed in U.S.A.
August 9, 2001
Elantec Semiconductor, Inc.
675 Trade Zone Blvd. Milpitas, CA 95035 Telephone: (408) 945-1323 (888) ELANTEC Fax: (408) 945-9305 European Office: 44-118-977-6020 Japan Technical Center: 81-45-682-5820
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