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42742-00 Datasheet(PDF) 4 Page - Peregrine Semiconductor Corp. |
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42742-00 Datasheet(HTML) 4 Page - Peregrine Semiconductor Corp. |
4 / 10 page Product Specification PE42742 Page 4 of 10 ©2006-2012 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0203-07 │ UltraCMOS™ RFIC Solutions Figure 4. Typical Application (1 of 4) Table 6. Truth Table VDD C1 (pin 17) C2 (pin 16) RFC – RF1 RFC – RF2 OFF Low Low ON OFF ON Low Low ON OFF ON Low High OFF ON ON High Low OFF ON ON High High ON OFF Note: A versatile logic table has been established to allow either C1 or C2 act as a single pin control and in either polarity. Typical Applications The PE42742 provides the high isolation required by FCC part 15.115 regulation between the television antenna and the cable plant. The advantage of the PE42742 is that device isolation / thru performance is maintained when power is removed. This unique feature makes the PE42742 ideal for set-top box and VCR applications. The PE42742 supports signal flow from RFC to RF1 and RF2 termination in the unpowered state; similar to the powered state with C1=C2 (both high or low). DTV-Tuner PE42742 SPDT DTV Tuner Antenna Input CATV Input 80dB 54 – 216MHz 60dB 216 – 550MHz 55dB 550 – 806MHz Power Splitter Power Splitter PE42742 SPDT Dual Tuner DTV / DVR / Set-top Box Television RF Splitter Antenna/Cable Input PVR/VCR/Game Box PE42742 SPDT Tuner/ Modulator OFF – Pass Through Tuner CATV Input OFF – Terminated TV Set / Cable Set-top Box 75Ω PE42742 SPDT Figure 5. Typical Application (2 of 4) Figure 7. Typical Application (4 of 4) Figure 6. Typical Application (3 of 4) DTV-Tuner PE42742 SPDT Antenna Input CATV Input 80dB 54 – 216MHz 60dB 216 – 550MHz 55dB 550 – 806MHz |
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