500MHz Video Front End - 4:1MUX + DC-Restore Features 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. 4:1 multiplexer with monitor out DC-restore amplifier ±5V operation 500MHz bandwidth Applications • • • • • • HDTV/DTV analog inputs Video projectors Computer monitors Set top boxes Security video Broadcast video equipment EL4101C - Preliminary EL4101C - Preliminary 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 -40°C to +85°C temperature range. Ordering Information Part No. EL4101CU Package 24-Pin QSOP Tape & Reel Outline # MDP0040 Connection Diagram HPULSE 1 HOLD 2 GNDL2 CAP 24 DCREF 23 0.33µF DCV SIG0 3 IN0 +5V 4 VS1+ DCFDBK 22 RGV VFDBK 21 SIG1 RFV 5 IN1 VOUT 20 6 GNDI VS2+ 19 +5V Video Out RLV=150Ω 7 IN2 VS2- 18 -5V Monitor Out RLM=150Ω SIG2 -5V 8 VS1- MOUT 17 9 IN3 MFDBK 16 RFM SIG3 GNDL 15 LOGICD0 11 D0 PDWN 14 LOGICD1 12 D1 N.C. 13 LOGICPD 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. © 2001 Elantec Semiconductor, Inc. August 9, 2001 10 N.C. RGM EL4101C - Preliminary EL4101C - Preliminary 500MHz Video Front End - 4:1MUX + DC-Restore Absolute Maximum Ratings (T A = 25°C) 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 -65°C to +150°C -40°C to +85°C 125°C 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 = 150Ω, CLV = CLM = 3p, CH = 0.33n, GAIN = 2. Parameter Parameter Description Conditions Min Typ Max Unit Supply IS1+ Positive Supply Current 1 25 mA IS - Negative Supply Current 38 mA IS2+ Positive Supply Current 2 VIN = 0, I L = 0 15 mA IS1S+ Positive Supply Current 1 in Standby Standby 3.8 mA ISS- Negative Supply Current in Standby Standby 2 mA IS2S+ Positive Supply Current 2 in Standby Standby 236 µA IB Input Bias Current VIN = 0V IBO Input Bias Current Drift with Temp. VIN = 0V VIH Input High Voltage VIL Input Low Voltage IIL Low Input Current for D0, D1, PDWN, HOLD VIN = 0V 25 IIH High Input Current for D0, D1, PDWN, HOLD VIN =5V 0 tSH Sample and Hold Delay Time Input -22.4 -2.2 6.1 TBD µA nA/°C 2 V 0.8 V 48 75 µA - 10 µA 12 ns Output VOSM Output Offset Voltage - Monitor VIN = 0V VOS DC-restore Offset Voltage Auto-zero on, DCREF = 0 -400 18 420 -5 - 5 mV δVOS Output Offset Voltage Drift - Video Auto-zero on VOH Output Voltage Swing, Pos. AV = +1, monitor & video outputs VOL Output Voltage Swing, Neg. AV = +1, monitor & video outputs ISC Output Short Circuit Current RL = 10Ω, source or sink 65 100 140 mA mV TBD µV/°C 3.44 3.5 V -3.43 -3.5 V AC Performance SR Slew Rate - Video Out (20%-80%) VOUT = 4VP-P 1000 2100 4500 V/µs SRM Slew Rate - Monitor Out (20%-80%) VOUT = 4VP-P 1250 2100 3900 V/µs OS Output Overshoot, Video VOUT = 1VP-P TBD OSM Output Overshoot, Monitor VOUT = 1VP-P TBD % tS Settling Time to 1%, Video Hold mode 10 ns tSM Settling Time to 1%, Monitor VREF DC-restore -Reference Voltage Range VIN = -2V to +2V tSD DC-restore - Settling Time to 1% Sample mode on VOHS DC-restore - Video Output Hold Step S - H transition VOSB DC-restore - Offset vs. Black Level Sample mode on -1 -0.6 1 mV/V ICCL DC-restore - Charge Current Limit, ICAP Sample mode on 210 260 345 µA IDC DC-restore - Droop Current, ICAP Hold mode on -30 - 30 nA % 10 2 -2 - ns 2 2.5 V µs -0.5 mV Electrical Characteristics VS1+ = VS2+ = 5V, VS1- = V S2- = -5V, RFV = RGV = RFM = RGM =375, R LV = RLM = 150Ω, CLV = CLM = 3p, CH = 0.33n, GAIN = 2. Parameter Parameter Description Conditions Min Typ Max Unit BW 3dB Bandwidth, Video Out 500 MHz BWM 3dB Bandwidth, Monitor Out 1000 MHz 0.1BW ±0.1dB Flat Bandwidth, Video Out 25 MHz 0.1BWM ±0.1dB Flat Bandwidth, Monitor Out 18 MHz Vp Peaking, Video 2.4 dB Vpm Peaking, Monitor 4.5 dB dP Diff. Phase @3.58MHz, Video TBD ° dG Diff. Gain @3.58MHz, Video TBD % dPM Diff. Phase @3.58MHz, Monitor TBD ° dPG Diff. Gain @3.58MHz, Monitor TBD % en Noise Voltage at Input for VOUT TBD nV/√Hz enm Noise Voltage at Input for MOUT TBD nV/√Hz Crosstalk  @10MHz 3 channel hostile -45 dB Crosstalk  @100MHz 3 channel hostile -20 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 D1 State D0 0 0 0 IN0 Selected 0 0 1 IN1 Selected 0 1 0 IN2 Selected 0 1 1 IN3 Selected 1 X X Standby - Powered Down 3 EL4101C - Preliminary EL4101C - Preliminary 500MHz Video Front End - 4:1MUX + DC-Restore EL4101C - Preliminary EL4101C - Preliminary 500MHz Video Front End - 4:1MUX + DC-Restore Pin Descriptions Pin Number Pin Name Pin Type 1 HOLD Logic Input Pin Description Hold pulse for DC-restore function 2 GNDL2 Logic Ground 3 IN0 High Frequency Signal 4 VS1+ Power 5 IN1 High Frequency Signal 6 GNDI Analog Signal 7 IN2 High Frequency Signal 8 VS1- Power 9 IN3 High Frequency Signal 11 D0 Logic Input Parallel control bit #0 12 D1 Logic Input Parallel control bit #1 14 PDWN Logic Input 15 GNDL Logic Ground 16 MFDBK High Frequency Signal Monitor amplifier feedback 17 MOUT High Frequency Signal Monitor amplifier output 18 VS2- Power Negative power pin for heavy, pulsatile supply currents 19 VS2+ Power Positive power pin for heavy, pulsatile supply currents 20 VOUT High Frequency Signal Video amplifier output 21 VFDBK High Frequency Signal Video amplifier feedback 22 DCFDBK Analog Signal Input to sample circuit 23 DCREF Analog Signal Reference DC voltage representing black level 24 CAP Analog Signal Sample storage capacitor for DC-restore circuit 10 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 13 No connection Power down input to put chip in low current standby mode Logic ground for D0, D1, PWDN buffers 4 Block Diagram (Gain of 1) V S+ Input Video Input Video MFDBK 750Ω + IN0 MOUT + - IN1 VOUT 750Ω VFDBK Input Video Input Video IN2 + - DCFDBK DCREF HOLD IN3 CAP D0 CH D1 GNDL GND GNDL2 5 VS- PDWN EL4101C - Preliminary EL4101C - Preliminary 500MHz Video Front End - 4:1MUX + DC-Restore 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. August 9, 2001 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. 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 6 Printed in U.S.A.