BL1513 Three-Channel, 5th Order, Standard Definition Video Filter Driver BL1513 Description The BL1513 is a low-Voltage, three-channel video amplifier with integrated reconstruction filter and input clamps. Specially suited for standard definition video signals, this device is ideal for a wide range of television and set-top box applications. BL1513 offers 6dB Gain rail-to-rail output driver and 5th order output reconstruction filter on all three channels. It has 8MHz -3dB bandwidth and 31.25V/µs slew rate. BL1513 provides improved image quality compared with passive LC filters and discrete drivers solution. BL1513 can be DC-coupled or AC-coupled with input video signal, such as the output stage of DAC to eliminate out-of-band noise. The output in BL1513 can be configured as DC or AC-coupled output. The BL1513 is available in Green SOP8L. It operates over an ambient temperature range of -40℃ to +85℃. Features Operation Temperature Range: -40℃ to 85℃ Three channel 5th Order 8MHz (SD) Filters Transparent Input Clamping 6dB Output Driver Gain Rail-to-Rail Output Input Voltage Range Includes Ground AC or DC Coupled Inputs / Outputs Operates from 3.3V to 5.5V Power Supply Green SOP8 and MSOP8 Packages ESD: pass 8kV HBM test Applications Cable and Satellite Set-Top Boxes Video Amplifiers, Communications Devices, Portable and Handheld Products, Personal Video Recorders, Video on Demand, DVD Players http://www.belling.com.cn -1- Total 8 Pages BL1513 Pin Configuration IN1 1 8 OUT1 IN2 2 7 OUT2 IN3 3 6 OUT3 VCC 4 5 GND SOP8L Block Diagram IN1 IN2 IN3 Transparent Clamp 8MHz,5th order Transparent Clamp 8MHz,5th order Transparent Clamp 8MHz,5th order 6dB OUT1 6dB OUT2 6dB OUT3 Pin Description No. Pin Name 1 IN1 2 IN2 3 IN3 4 VCC 5 GND 6 OUT3 7 OUT2 8 OUT1 http://www.belling.com.cn Description Signal Input Signal Input Signal Input The power pad of the chip The ground pad of the chip Signal Output Signal Output Signal Output -2- I/O Input Input Input Power Ground Output Output Output Total 8 Pages BL1513 ABSOLUTE MAXIMUM RATINGS Parameter Min Max Units Supply Voltage VCC to GND -0.3 6 V Input Voltage GND-0.3 VCC+ 0.3 V Storage Temperature Range -65 150 ℃ Work Temperature Range -40 85 ℃ -40 85 ℃ Operating Temperature Range TA Notes: Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING INFORMATION SPECIFIED MODEL PIN- PACKAGE TEMPERATURE RANGE BL1513 SOP8 - 40°C to +85°C PACKAGE MARKING BL1513 (1) YWWSSSS PACKAGE OPTION Tape and Reel, 2500 WHERE(1): “Y”stands for the last number of the product year, for example, “2” stands for the year 2012. “WW” stands for the product week. “SSSS” stands for the fifth to the eighth number of the lot num. http://www.belling.com.cn -3- Total 8 Pages BL1513 ELECTRICAL CHARACTERISTICS (At VCC=5V, RL = 150Ω connected to GND, VIN = 1Vpp, and CIN = 0.1µF, all outputs AC coupled with 220µF, referenced to 400kHz, unless otherwise noted) DC ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS Iq VIN=0V TEMP MIN TYP MAX UNITS 21 +25℃ VIN=0V, NO LOAD mA 30 -40 to +85℃ VOLS 26 395 +25℃ 580 mV 670 -40 to +85℃ PSRR DC -40 to +85℃ 63 Output Voltage High Swing VIN=3V, RL = 150Ω connected to GND +25℃ 4.4 -40 to +85℃ 4.3 dB 4.76 V AC ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS GAIN (AV) RL = 150Ω to GND TEMP MIN TYP MAX UNITS +25℃ 5.7 -40 to +85℃ 5.4 6 6.4 dB 6.6 BW (-0.1dB) RL = 150Ω to GND +25℃ 5.5 MHz BW (-3dB) RL = 150Ω to GND +25℃ 7.7 MHz Filter response fIN=27MHz +25℃ 49 dB Crosstalk (channel to channel) f=1MHz +25℃ -60 dB THD f=1MHz, VOUT=1.4Vpp +25℃ 0.2 % +25℃ 31.25 V/uS +25℃ 38.4 nS +25℃ 38.4 nS +25℃ 31 nS PAL DC coupled +25℃ 0.6 PAL AC coupled +25℃ 0.88 PAL DC coupled +25℃ 0.88 PAL AC coupled +25℃ 1.6 SLEW RATE Fall time Rise time D/DT DG DP http://www.belling.com.cn 2V outputstep 80% to 20% 2V outputstep 80% to 20% 2V outputstep 80% to 20% difference from 400KHz to 6.5MHz -4- Total 8 Pages % ° BL1513 Typical Application Diagram The following schematic in Figure 2 is normally used for AC coupled output and DCcoupled input with DAC which has an output voltage range of 0V to 1.4V. AC coupled output offer slightly lower power dissipation and high ESD protection ability. The schematics in Figure 1 is also popular in design. input clamp 0.1uF 1 IN1 CVBS1 220uF filter OUT1 8 75 omh 75 omh input clamp 0.1uF 2 IN2 Y 220uF filter OUT2 7 Y 75 omh 75 omh S-Video 3 IN3 filter C OUT3 6 BL1513 4 10uF 220uF 75 omh 75 omh +5V S-Video input clamp 0.1uF C CVBS1 VCC GND 5 0.1uF or 0.01uF 图 1 AC Coupling Application Schematic http://www.belling.com.cn -5- Total 8 Pages BL1513 input clamp Y 220uF 1 IN1 filter OUT1 8 Y 75 omh 75 omh input clamp 2 220uF IN2 filter Pb OUT2 7 Pb 75 omh 75 omh input clamp Pr 3 IN3 filter BL1513 4 10uF GND VCC 5 0.1uF or 0.01uF 图 2 Input DC Coupling http://www.belling.com.cn Pr OUT3 6 75 omh 75 omh +5V 220uF -6- Output AC Coupling Total 8 Pages BL1513 APPLICATION NOTE Functional Description BL1513 operates from a single 3.3V to 5V supply. In application, BL1513 is a fully integrated solution for filtering and buffering SDTV signals in front of video decoder or behind video encoder. For example, BL1513 can replace three passive LC filters and three amplifier drivers at CVBS and S-video output side in set-top box and DVD player, this solution can help you save PCB size and production cost, it also improves video signal performance comparing with traditional design using discrete components. BL1513 features a DC-coupled input buffer, 5-pole low-pass filter to eliminate out-of-band noise of video encoder, and a gain of +6dB in the output amplifier to drive 75Ω load. The AC or DC-coupled input buffer eliminates sync crush, droop, and field tilt. The output of BL1513 also can be DC-coupled or AC-coupled. Input Considerations Besides AC coupling, the BL1513 inputs also can be DC-coupled. In DC coupling application, No input coupling capacitors are needed because the amplitude of input video signal from DAC includes ground and extends up to 1.4V, then BL1513 can be directly connected to the output of a single-supply, current-output DAC without any external bias network. Some time, if DAC’s output level exceeds the range of 0V to 1.4V, or BL1513 is driven by an unknown external source or a SCART switch which has its own clamping circuit, AC coupling is needed in such applications. Output Considerations The BL1513 outputs can be DC-coupled or AC-coupled. When 0V is input, the BL1513 output voltage is 401mV typically. In DC coupling design, one 75Ω resistor is used to connect BL1513’s output pin with external load directly, this serial back-termination resistor is used to match the impedance of the transmission line between BL1513 and external load to cancel the signal reflection. The BL1513 outputs can sink and source current allowing the device to be AC-coupled with external load, in AC coupling, 220µF at least capacitor will be used in order to eliminate field tilt. Power-Supply Bypassing and Layout Correct power supply bypassing is very important for optimizing video performance in design. One 0.1µF and one 10µF capacitors are always used to Bypass VCC pin of BL1513, please place these two capacitors as close to the BL1513 output pin as possible, a large ground plane is also needed to ensure optimum performance. The input and output termination resistors should be placed as close to the related pin of BL1513 as possible to avoid performance degradation. The PCB traces at the output side should have 75Ω characteristic impedance in order to match the 75Ω characteristic impedance cable connecting external load. In design, please keep the board trace at the inputs and outputs of the BL1513 as short as possible to minimize the parasitic stray capacitance and noise pickup. http://www.belling.com.cn -7- Total 8 Pages BL1513 PACKAGE OUTLINE DIMENSIONS (SOP8) SOP8L SYMBOL MILLIMETER http://www.belling.com.cn MILLIMETER MIN. NOM MAX. A A1 A2 A3 b b1 c c1 D E E1 e h L L1 0.10 1.30 0.60 0.39 0.38 0.21 0.19 4.70 5.80 3.70 1.27BSC 0.25 0.50 1.05BSC 1.40 0.65 0.41 0.20 4.90 6.00 3.90 1.75 0.23 1.50 0.70 0.48 0.44 0.26 0.21 5.10 6.20 4.10 1.27BSC 0.50 0.80 1.05BSC θ 0° -8- - 8° Total 8 Pages