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SL1935KG データシート(PDF) 1 Page - Zarlink Semiconductor Inc |
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SL1935KG データシート(HTML) 1 Page - Zarlink Semiconductor Inc |
1 / 23 page Features • • • • • • • • • • • Single chip synthesised tuner solution for quadrature down conversion, L-band to Zero IF. DVB compliant, operating dynamic range -70 to -20dBm. Compatible with DSS and DVB variable symbol rate applications. Selectable baseband path, programmable through I2C bus. Excellent quadrature balance up to 30MHz baseband Excellent immunity to spurious second harmonic (RF and LO) mixing effects. Low oscillator phase noise and reradiation. High output referred linearity for low distortion and multi channel application. Integral fast mode compliant I2C bus controlled PLL frequency synthesiser, designed for high comparison frequencies and low phase noise performance. Buffered crystal output for clocking QPSK demodulator. ESD protection (Normal ESD handling procedures should be observed). Applications • • Satellite receiver systems. Data communications systems. Figure1. Pin connections 36 1 18 19 XTALCAP XTAL SDA SCL BUFREF VCCD VCC RF RFB VCC IFIA IFIB VCC OFIA OFIB VEE IOUT ADD PUMP DRIVE PORT P0 VEE TANKS TANKSB VEE TANKV TANKVB VEE IFQA IFQB VCC OFQA OFQB VEE QOUT AGCCONT Description The SL1935 is a complete single chip bus controlled Zero IF tuner and operates from 950 to 2150MHz. It includes an on-board low phase noise PLL frequency synthesiser and low noise LNA/AGC. The SL1935 is intended primarilyfor application in digital satellite Network Interface Modules and performs the complete tuner function. The device contains all elements necessary, with the exception of local oscillator tuning network and crystal reference, to produce a high performance I(n-phase) & Q(uadrature) downconversion tuner function. Due to the high signal handling design the device does not require any front end tracking filters. The SL1935 includes selectable baseband signal paths, allowing application with two externally definable filter bandwidths, facilitating application in variable symbol rate and simulcast systems. The SL1935 is optimised to interface with the VP310 (ADC/QPSK/FEC) Satellite Channel Decoder, available from Zarlink Semiconductor and offers a full front end solution. I2C SL1935 Single Chip Synthesized Zero IF Tuner April 2004 Ordering Information SL1935 D/KG/NP1P (Tubes) 36 pin SSOP SL1935 D/KG/NP1Q (Tape and Reel) 36 pin SSOP 1 Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003 - 2004, Zarlink Semiconductor Inc. All Rights Reserved. |
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同様の説明 - SL1935KG |
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