DBS front-end unit for digital BS *1 DBS front-end with link for digital BS *1) Can also be installed in digital CS broadcast receiver set We have developed a DBS front-end with link integrated 8PSK demodulator for reducing the development time of BS digital broadcast receiver sets, which require higher quality performance than CS digital broadcasts. Features Built-in 8PSK/QPSK demodulator With a built-in 8PSK demodulator compatible with the digital BS broadcast modulation system, the unit contributes to reduction in set development term (QPSK demodulation for CS is also built-in) Line-up of models equipped with various demodulation chips Compatible with 8PSK demodulation chips that will satisfy users requirements Compact, thin design Can handle BS data broadcast reception, with a thickness of 13 mm which can be installed in PCI card, in the same configuration as for CS digital Applications Block diagram Direct conversion IC RF amp circuit block HPF IQ demodulation circuit block 8PSK/QPSK demodulation circuit block LPF RF ATT RF input 950 to 2,150MHz AGC control LINK IC LPF RF output Wideband 90 phase shifter LPF PLL synthesizer TSA0-TSA7 PACA TENA TCLKA TERA RESET SYNC TMRN BCS BERMS Digital BS broadcast reception tuner (STB) Digital BS broadcast reception compatible TV/VTR BS data broadcast reception compatible PCI cards for PCs PLL oscillation circuit B1A B1B B4 (LNB) (5V) TUN (30V) Specifications Input frequency: 950 to 2150 MHz Circuit system: Direct conversion Channel selection system: PLL synthesizer Installed LINK-IC manufacturer: NEC/Fujitsu Input signal level: -65 to -25 dBm External dimensions / Inner volume: 35.8 x 70 x 12.9 mm / 27 cm 3 B2 (5V) SDA SCL VDD (2.5V) Outline dimensions 1 RF IN (Unit: mm) 70.0 12.9 15 VDD 2 RF OUT 16 TSA0 1 3 B1A 17 TSA1 4 B1B 18 TSA2 5 B4 19 TSA3 6 BERMS 20 TSA4 35.9 2 3 (Pin No.) 28 7 SYNC 21 TSA5 8 TMRN 22 TSA6 9 B3 23 TSA7 10 TUN 24 TCLKA 11 B2 25 TENA 12 BCS 26 PACA 13 SCL 27 TERA 14 SDA 28 RESET In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. Specifications are subject to change without notice for improvement.