TSH103 Low cost triple video buffer/filter for standard video Features Triple channels th Internal 6 MHz reconstruction filter (4 order) SO-8 plastic package 6 dB gain buffer for 75 lines 5 V single supply Bottom of video signal close to 0 V Data min. and max. physically tested and Pin connections guaranteed during production Applications 6MHz 8 OUT1 IN1 1 + 6dB LPF Standard definition TVs Set-top boxes 6MHz 7 IN2 OUT2 2 + 6dB LPF DVD players/recorders 6MHz Description IN3 6 OUT3 3 + 6dB LPF The TSH103 is a low-cost video buffer. It is DC shifter 5 +Vcc 4 GND dedicated to drive video signals from any video DAC output on 75 video lines in standard definition. With a real benefit in terms of integration and cost saving, this product is particularly efficient for the replacement of current discrete solutions using transistors, coil and capacitors for buffering and filtering. This triple channel is designed to drive either CVBS/Y-C or RGB or YPbPr or YUV formats. Each channel features an internal 6 MHz reconstruction filter and a 6 dB buffer (attenuation of 27 MHz sampling and good output impedance matching with the video line). The TSH103 requires a single 5 V power supply. It is available in an SO-8 plastic package. August 2009 Doc ID 13895 Rev 2 1/12 www.st.com 12Absolute maximum ratings TSH103 1 Absolute maximum ratings Table 1. Absolute maximum ratings Symbol Parameter Value Unit (1) V Supply voltage 6V CC V Maximum input voltage swing 0 to 1.5 V in T Operating free air temperature range -40 to +85 C oper T Storage temperature -65 to +150 C stg T Maximum junction temperature 150 C j R SO-8 thermal resistance junction to case 28 C/W thjc R SO-8 thermal resistance junction to ambient area 157 C/W thja (2) HBM: human body model 3.5 kV (3) ESD CDM: charged device model 1.5 kV (4) MM: machine model 200 V (5) Output short-circuit 1. All voltage values are with respect to network terminal. 2. Human body model: 100 pF discharged through a 1.5 k resistor between two pins of the device, done for all couples of pin combinations with other pins floating. 3. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to the ground. 4. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 ), done for all couples of pin combinations with other pins floating. 5. An output current limitation protects the circuit from transient currents. Short-circuits can cause excessive heating. Destructive dissipation can result from short-circuits on amplifiers. 2 Operating conditions Table 2. Operating conditions Symbol Parameter Value Unit (1) V Power supply voltage 4.5 to 5.5 V CC 1. This range is guaranteed by design (the product is tested in full production at a 5 V single power supply). 2/12 Doc ID 13895 Rev 2