General Description Normalized Gain (db) V OUT = 2V pp Normalized Gain (db)

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1 Comlinear CLC Triple, Standard Definition Video Amplifier FEATURES n Integrated 4th-order, MHz filters n Integrated db video drivers n.ma total supply current n.%/.4 differential gain/phase error n DC coupled inputs n AC or DC coupled outputs n DC-coupled outputs remove the need for AC-coupling capacitors n Each channel can drive V pp into,, or video loads (5Ω, or 5Ω) n.% THD n Operates from V to V supplies n Pb-free SOIC- package APPLICATIONS n Cable or satellite set-top-box (STB) n Portable DVD players n DVD players n Portable media players with video out n Video on demand n Personal video recorders Functional Block Diagram IN IN IN MHz, 4th Order Low Pass Filter Gain Gain Gain CLC - db CLC - 9dB OUT OUT OUT General Description The CLC is a triple low cost video amplifier capable of driving V pp into (5Ω), (), or (5Ω) video loads. The CLC features integrated MHz, 4th-order low pass filters designed to cleanly pass standard definition video signals while filtering out noise and other unwanted signals, resulting in a crisper, cleaner video signal. The 4th-order filter provides improved image quality when compared to nd-order passive filtering solutions. The CLC video amplifier offers a fixed gain of db. This integrated gain compensates for the voltage drop inherent in properly terminated video loads; ensuring a Vpp video signal is present at the load. All three video amplifiers can be driven by DC-coupled signals. Their outputs can drive either AC- or DC-coupled loads. The CLC operates from V to V supplies and consumes.ma of supply current, making it well suited for battery powered devices. Competitive Comparison Plots (continued on page ) Normalized Gain (db) Normalized Gain (db) V OUT = V pp Competitor A Competitor B CLC Competitor C. V OUT = V pp Competitor C Competitor A. Competitor B CLC Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Ordering Information Part Number Gain Package Pb-Free RoHS Compliant Operating Temperature Range Packaging Method CLCISOX db SOIC- Yes Yes -4 C to +5 C Reel Moisture sensitivity level for all parts is MSL-. Exar Corporation 4 Kato Road, Fremont CA 945, USA Tel Fax

2 SOIC Pin Configuration SOIC Pin Assignments Pin No. Pin Name Description IN IN IN +V S 4 5 OUT OUT OUT IN Input, channel IN Input, channel IN Input, channel 4 +V S Positive supply 5 Ground OUT Output, channel OUT Output, channel OUT Output, channel Comlinear CLC Triple, Standard Definition Video Amplifier Rev D - Exar Corporation / Rev D

3 Electrical Characteristics at V T A = 5 C, V s = +V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Symbol Parameter Conditions Min Typ Max Units Frequency Domain Response F -db F -db F SB DG DP -db Bandwidth -db Bandwidth Time Domain Response Stopband Attenuation Differential Gain Differential Phase R L =5Ω, AC-coupled. MHz R L =, DC-coupled. MHz R L =5Ω, AC-coupled.5 MHz R L =, DC-coupled.5 MHz at MHz, R L =5Ω, AC-coupled 4 db at MHz, R L =, DC-coupled 4 db NTSC (.5MHz), AC-coupled. % NTSC (.5MHz), DC-coupled. % NTSC (.5MHz), DC-coupled, R L =.4 % NTSC (.5MHz), AC-coupled. NTSC (.5MHz), DC-coupled. NTSC (.5MHz), DC-coupled, R L =.5 GD Group Delay Delta delay between 4kHz and.5mhz 5. ns PD Propogation Delay Delay from input to output, 4.5MHz 5 ns Distortion/Noise Response THD Total Harmonic Distortion V OUT = V pp, MHz, active video range + sync. % V OUT =.4V pp,.5mhz, active video range.9 % V OUT = V pp, MHz, active video range + sync, R L =, DC-coupled V OUT =.4V pp,.5mhz, active video range, R L =, DC-coupled. %.9 % SNR Signal to Noise Ratio NTC- Weighting khz to 4.MHz db CLG X TALK DC Performance Chroma / Luma Gain Crosstalk 4kHz to.5mhz (NTSC) ± % 4kHz to 4.4MHz (PAL) ± % Channel-to-channel at MHz db Channel-to-channel at MHz, R L =, DC-coupled 5 db G Gain () DC, CLC, R L =, DC-coupled 5... db G MATCH Inter-Channel Gain Matching () 4kHz, R L =, DC-coupled.. db V OS Output Offset Voltage () V IN =V, no load 9 mv I b Input Bias Current () V IN =V, no load.4 5 µa V IN Input Voltage Range () to.5 V V O Output Voltage, CLC () V IN =.V pp, R L =5Ω, AC-coupled.5 V V IN =.V pp, R L =, DC-coupled ().5.5. V PSRR Power Supply Rejection Ratio DC, no load, V S = V to 5.5V 5 db I S Supply Current () No load, all channels. 5 ma Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Notes:. % tested at 5 C. Designed to handle SD video from -4 C to +5 - Exar Corporation / Rev D

4 Electrical Characteristics T A = 5 C, V s = +5V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Symbol Parameter Conditions Min Typ Max Units Frequency Domain Response F -db F -db F SB DG DP -db Bandwidth -db Bandwidth Time Domain Response Stopband Attenuation Differential Gain Differential Phase R L =5Ω, AC-coupled. MHz R L =, DC-coupled. MHz R L =5Ω, AC-coupled. MHz R L =, DC-coupled. MHz at MHz, R L =5Ω, AC-coupled 4 db at MHz, R L =, DC-coupled 4 db NTSC (.5MHz), AC-coupled. % NTSC (.5MHz), DC-coupled. % NTSC (.5MHz), DC-coupled, R L =. % NTSC (.5MHz), AC-coupled. NTSC (.5MHz), DC-coupled.4 NTSC (.5MHz), DC-coupled, R L =.4 GD Group Delay Delta delay between 4kHz and.5mhz 5. ns PD Propogation Delay Delay from input to output, 4.5MHz 5 ns Distortion/Noise Response THD Total Harmonic Distortion V OUT = V pp, MHz, active video range + sync. % V OUT =.4V pp,.5mhz, active video range.5 % V OUT = V pp, MHz, active video range + sync, R L =, DC-coupled V OUT =.4V pp,.5mhz, active video range, R L =, DC-coupled.5 %. % SNR Signal to Noise Ratio NTC- Weighting khz to 4.MHz db CLG X TALK DC Performance Chroma / Luma Gain Crosstalk 4kHz to.5mhz (NTSC) ± % 4kHz to 4.4MHz (PAL) ± % Channel-to-channel at MHz - db Channel-to-channel at MHz, R L =, DC-coupled -5 db G Gain () DC, CLC, R L =, DC-coupled db DC, CLC, R L =, DC-coupled 5... db DC, CLC, R L =, DC-coupled TBD TBD db G MATCH Inter-Channel Gain Matching () 4kHz, R L =, DC-coupled.. db V OS Output Offset Voltage () V IN =V, no load 9 mv I b Input Bias Current () V IN =V, no load.4 5 µa VR IN Video Range - Input () to. to.4 V V O Output Voltage, CLC () V IN =.V pp, R L =5Ω, AC-coupled.5 V V IN =.V pp, R L =, DC-coupled ().5.5. V PSRR Power Supply Rejection Ratio DC, no load 5 db I S Supply Current () Total ma Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Notes:. % tested at 5 C. Designed to handle SD video from -4 to +5 - Exar Corporation 4/ Rev D

5 Absolute Maximum Ratings The safety of the device is not guaranteed when it is operated above the Absolute Maximum Ratings. The device should not be operated at these absolute limits. Adhere to the Recommended Operating Conditions for proper device function. The information contained in the Electrical Characteristics tables and Typical Performance plots reflect the operating conditions noted on the tables and plots. Parameter Min Max Unit Supply Voltage 4 V Input Voltage Range -V s -.5V +V s +.5V V Output Short Circuit Current +, -5 ma Reliability Information Parameter Min Typ Max Unit Junction Temperature 5 C Storage Temperature Range -5 5 C Lead Temperature (Soldering, s) C Package Thermal Resistance -Lead SOIC C/W Notes: Package thermal resistance (q JA ), JDEC standard, multi-layer test boards, still air. ESD Protection Product Human Body Model (HBM), output ESD protection Charged Device Model (CDM) Recommended Operating Conditions SOIC- Parameter Min Typ Max Unit Operating Temperature Range C Supply Voltage Range V 5kV kv Comlinear CLC Triple, Standard Definition Video Amplifier Rev D - Exar Corporation 5/ Rev D

6 Typical Performance Characteristics at V S = 5V T A = 5 C, V s = +5V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Frequency Response (V OUT =.V pp ) Frequency Response (V OUT = V pp ) Gain (db) V OUT =.V pp -. Frequency Response (V OUT = V pp ) Frequency Response (V OUT = V pp ) Gain (db) V OUT = V pp -. Phase vs. Frequency Group Delay vs. Frequency 9 Gain (db) Gain (db) V OUT = V pp V OUT = V pp 5.. Comlinear CLC Triple, Standard Definition Video Amplifier Rev D - Phase ( ) Delay (ns) V OUT = V pp V OUT = V pp Exar Corporation / Rev D

7 Typical Performance Characteristics at V S = 5V T A = 5 C, V s = +5V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Noise vs. Frequency (SNR) Crosstalk vs. Frequency - Differential Gain and Phase Large Signal Pulse Response.5 Input Rise/Fall Time = 4ns Crosstalk (db) V OUT = V pp -. Harmonic Distortion vs. Output Voltage Distortion (dbc) Large Signal Pulse Response Ch. <-> Ch. Ch. <-> Ch. Ch. <-> Ch HD HD f =.5MHz Output Amplitude (V pp ) Input Rise/Fall Time = ns.5 Output Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Input/Output Voltage (V).5.5 Output Input Input/Output Voltage (V).5.5 Input Time (ns) Time (ns) - Exar Corporation / Rev D

8 Typical Performance Characteristics at V S = V T A = 5 C, V s = +V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Frequency Response (V OUT =.V pp ) Frequency Response (V OUT = V pp ) Gain (db) V OUT =.V pp -. Frequency Response (V OUT = V pp ) Frequency Response (V OUT = V pp ) Gain (db) V OUT =.V pp -. Phase vs. Frequency Group Delay vs. Frequency 9 Gain (db) Gain (db) V OUT = V pp V OUT =.V pp 5.. Comlinear CLC Triple, Standard Definition Video Amplifier Rev D - Phase ( ) Delay (ns) V OUT = V pp V OUT = V pp Exar Corporation / Rev D

9 Typical Performance Characteristics at V S = V T A = 5 C, V s = +V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Noise vs. Frequency (SNR) Crosstalk vs. Frequency - Differential Gain and Phase Large Signal Pulse Response.5 Input Rise/Fall Time = 4ns Crosstalk (db) V OUT = V pp -. Harmonic Distortion vs. Output Voltage Distortion (dbc) Large Signal Pulse Response Ch. <-> Ch. Ch. <-> Ch. Ch. <-> Ch. - HD -4 HD RL = 5Ω Output Amplitude (V pp ) Input Rise/Fall Time = ns.5 Output Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Input/Output Voltage (V).5.5 Output Input Input/Output Voltage (V).5.5 Input Time (ns) Time (ns) - Exar Corporation 9/ Rev D

10 Typical Performance Characteristics Driving Multiple Video Loads T A = 5 C, V s = +5V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Load = 5Ω, Loads =, Loads = 5Ω, 4 Loads =.5Ω. Frequency Response Pulse Response Normalized Gain (db) Loads 4 Loads Loads - Load V OUT =.V pp pp -. Differential Gain and Phase Output Voltage Swing 5. Load Output (V) Loads Time (us) Total Harmonic Distortion Loads 4 Loads Load Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Output Voltage (V) Loads Loads Loads Input Voltage (V) - Exar Corporation / Rev D

11 Typical Competitive Comparison Plots T A = 5 C, V s = +5V, input is DC-coupled, input source resistance =.5Ω, R L = 5Ω thru a μf AC-coupling capacitor, V IN = V pp ; unless otherwise noted. Frequency Response Frequency Response Normalized Gain (db). Competitor A. Competitor B -. CLC -. Competitor C V OUT = V pp V OUT = V pp -. Total Harmonic Distortion (R L = 5Ω) Total Harmonic Distortion (R L = ) THD (db) Competitor A Competitor B Competitor C CLC V OUT = V pp Total Harmonic Distortion DC-Coupled Out (R L = ) Signal to Noise Ratio and Differential Gain/Phase Normalized Gain (db) Competitor C Competitor B Competitor A CLC Competitor A -45 THD (db) Competitor B Competitor A Competitor C CLC V OUT = V pp Comlinear CLC Triple, Standard Definition Video Amplifier Rev D THD (db) CLC Competitor C -5 V OUT = V pp Competitor B -. - Exar Corporation / Rev D

12 Application Information Basic Operation The CLC is a -channel video amplifiers that operates with single supply voltages from V to V. They are designed to accept DC-coupled inputs and will drive ACor DC-coupled outputs. Each channel integrates a DC offset, 4th order Butterworth filters, and fixed gain video drivers. The filtering is appropriate for standard definition video signals and has a -db cutoff of.mhz. This cutoff provides an excellent compromise between flat in-band response and high frequency noise reduction. The input signals are level shifted prior to the input filters and output amplifiers. Inputs: DC-Coupled The inputs must be DC-coupled. Many DACs provide a current output that is resistively terminated to ground. These DACs are conveniently DC-coupled to the inputs of the CLC as shown in Figure. DC-coupled inputs use fewer components and lowers the overall system cost. Video DAC/ Encoder Figure. Typical Input Configuration R or Y G or PB B or PR +V or +5V The input termination/source resistance is set by the application. Any value up to several kω can be used. Lower values reduce noise, but if higher values are needed, there is little effect on filter shape or distortion performance of the CLC. If the CLC is located on the same board as the video source, and within a few inches, the input termination resistance is determined by the requirements of the Video DAC or Encoder. If a cable is needed to connect the CLC to the video source, the termination must match the cable impedance which is for standard video cable. The CLC video amplifier adds a DC offset, raising the input signal by approximately mv. For example, when.µf DAC Load Resistors per Video DAC/Encoder specs IN IN IN 4 +Vs.µF CLC OUT OUT OUT 5 V is applied to the input, the output becomes approximately mv above ground. This offset eliminates sync tip clipping. Figure illustrates a typical DC-coupled input signal and resulting output signal after exiting the CLC..V.V.V.V Input Signal Figure. Typical DC-coupled Signal for CLC The input voltage range is typically V to.4v for the CLC at 5V supply. Due to the internal fixed gain of db (for the CLC) and the internal level shift of nominally mv, the V IN range is generally limited by the output. V IN and V OUT are fully detailed in the Electrical Characteristics section. Outputs: AC- or DC-Coupled.9V.9V.5V Output Signal Each channel of the CLC can drive either AC- or DCcoupled loads. Each channel can drive single or dual video loads, 5Ω ( video load) or ( video loads). Figure shows the typical configuration for driving either AC- or DC-coupled loads. With DC-coupled loads, AC-coupling capacitors are not used. Match the series termination resistors to the typical cable impedance, for standard video cable. Keep the output connection to the series termination resistors as short as possible. If driving video loads, place both resistors close to the CLC. With AC-coupled loads, use an AC-coupling capacitor of at least μf in a environment. A value of at least μf will ensure that low frequencies are passed, preventing video droop across the line, referred to as tilt. Comlinear CLC Triple, Standard Definition Video Amplifier Rev D - Exar Corporation / Rev D

13 IN IN IN 4 +Vs Figure. Typical Output Configuration Power Supply Decoupling For optimum performance, power supply decoupling is required. Figure 4 shows the recommended usage of power supply decoupling capacitors. The.µF decoupling capacitor must be placed as close to pin 4 as possible, <. or <.5mm, to be effective. The larger, µf capacitor can be placed further away. Figure 4. Recommended Power Supply Decoupling.5 CLC OUT OUT OUT 5 AC-Coupling Caps are Optional +V or +5V.µF.µF IN IN IN 4 +Vs CLC Video Cables OUT OUT OUT 5 Power Dissipation Considerations with DC-Coupled Loads When driving DC loads, the supply current is much higher than in AC applications and care must be taken to dissipate the extra heat generated. The output signal will swing from about.v to.v for full swing video. In the worst case condition, an all white screen with dual DC loads, the additional thermal rise over the quiescent condition is about C. An easy way to help distribute this extra heat is to place a ground plane under the part and add ground plane on the bottom of the board immediately under the part with vias between the two planes. The CLC is designed primarily for low voltage operation with supply values between.v and 5.5V, but larger supplies can be used. In this situation, DC loads may not be possible due to thermal considerations. With single DC loads on all three channels and a V supply, the thermal rise is an additional 45 this gives a total temperature rise of about 5. Layout Considerations General layout and supply bypassing play major roles in high frequency performance. Exar has evaluation boards to use as a guide for high frequency layout and as aid in device testing and characterization. Follow the steps below as a basis for high frequency layout: Include µf and.µf ceramic capacitors for power supply decoupling Place the.µf capacitor <.5 inches of the power pin Place the.µf capacitor <. inches of the power pin Remove the ground plane near the input and output pins to reduce parasitic capacitance Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Maximum Power Dissipation (W).5.5 SOIC- Minimize all trace lengths to reduce series inductances Refer to the evaluation board layouts for more information. Evaluation Board Information The following evaluation boards are available to aid in the testing and layout of these devices: -4-4 Ambient Temperature ( C) Figure 5. Maximum Power Derating Evaluation Board CEB Products CLC in SOIC packages - Exar Corporation / Rev D

Evaluation Board Schematics Evaluation board schematics and layouts are shown in Figures 9-. Application Note AN- provides a detailed description of the evaluation board.

14 Evaluation Board Schematics Evaluation board schematics and layouts are shown in Figures 9-. Application Note AN- provides a detailed description of the evaluation board. SHORT FOR CLC/CLC/CLC Figure 9. CEB Schematic Figure. CEB Top View Figure. CEB Bottom View Comlinear CLC Triple, Standard Definition Video Amplifier Rev D - Exar Corporation 4/ Rev D

15 Typical Application Circuits DVD Player or STB DAC Load Resistors per Video DAC/Encoder specs Video DAC/ Encoder R or Y G or P B B or P R DVD Player or STB Video DAC/ Encoder Y C CV +V or +5V.µF.µF IN IN IN 4 +Vs CLC OUT OUT OUT 5 AC-Coupling Caps are Optional Video Cables Figure. Typical Configuration for Component Video (RGB, YP B P R, or YUV) +V or +5V.µF DAC Load Resistors per Video DAC/Encoder specs.µf IN IN IN 4 +Vs CLC OUT OUT OUT 5 AC-Coupling Caps are Optional Video Cables R G B Y C CV CV Comlinear CLC Triple, Standard Definition Video Amplifier Rev D Figure. Typical Configuration for Composite Video an extra composite output is available to drive an RF modulator - Exar Corporation 5/ Rev D

16 DVD Player or STB DAC Load Resistors per Video DAC/Encoder specs Y IN OUT S-Video Video DAC/ Encoder C CVBS DVD Player or STB Video DAC/ Encoder R or Y G or P B B or P R YOUT COUT CV OUT +V or +5V.µF IN IN 4 +Vs.µF CLC OUT OUT 5 AC-Coupling Caps are Optional Figure. Typical Configuration for Composite (CVBS) and S-Video +V or +5V.µF +V or +5V.µF DAC Load Resistors per Video DAC/Encoder specs.µf.µf IN IN IN 4 +Vs IN IN IN 4 +Vs CLC CLC OUT OUT OUT OUT OUT OUT 5 5 Video Cables Video Cables Video Cables Video Cables CVBS CVBS R G B Y C CV Comlinear CLC Triple, Standard Definition Video Amplifier Rev D AC-Coupling Caps are Optional Figure. Typical Configuration for -channel application - Exar Corporation / Rev D

17 Mechanical Dimensions SOIC- Package Comlinear CLC Triple, Standard Definition Video Amplifier Rev D For Further Assistance: Exar Corporation Headquarters and Sales Offices 4 Kato Road Tel.: + (5) - Fremont, CA USA Fax: + (5) - NOTICE EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration purposes and may vary depending upon a user s specific application. While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances. Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. - Exar Corporation / Rev D

CLC2058 Dual 4V to 36V Amplifier

CLC2058 Dual 4V to 36V Amplifier Comlinear CLC8 Dual 4V to 6V Amplifier FEATURES n Unity gain stable n db voltage gain n.mhz gain bandwidth product n.mω input resistance n db power supply rejection ratio n 9dB common mode rejection ratio