BS2F7HZ7395VIP专享

MODEL No. SPEC No. PAGE BS2F7HZ7395 EC-06Y05B 3/19 SHARP PROPRIETARY [DESCRIPTION] This specification covers DBS tuner intended for use in Digital Broadcasting Satellites. This tuner incorporates "LINK" section that is composed of DVB standard QPSK demodulation circuit and FEC (Forward Error Correction) circuit. This tuner has 8-bit transport stream output. [1] GENERAL SPECIFICATIONS 1-1 Receiving frequency range 950MHz to 2150MHz 1-2 Input level -65dBm to -25dBm 1-3 Input structure F type Female 1-4 Nominal input impedance 75 ohm 1-5 Channel selection system PLL synthesizer(Clock 4.0MHz) 1-6 Step frequency 500kHz 1-7 I/Q output LPF cut off frequency(-3dB) 10MHz to 30MHz, variable (2MHz step) 1-8 Symbol rate 2Msps to 45Msps 1-9 Roll-off Factor 35％ (root-raised cosine) 1-10 LINK IC STV0288 (Clock: 4MHz, Address: D0 (HEX)) 1-11 FEC Inner decoder: Viterbi soft decoder, Constraint length M=7 Punctured codes 1/2, 2/3, 3/4, 5/6, 7/8 Automatic or manual rate and Phase recognition deinterleaver Word synchro extraction Convolutive deinterleaver Outer decoder: Reed-solomon decoder, for 16 parity bytes Block lengths 204byte Energy dispersal descrambler 1-12 Absolute maximum ratings (B2) -0.30 to +4.00V DC (B3) -0.30 to +3.63V DC (B4) -0.30 to +4.00V DC (VDD) -0.25 to +2.75V DC 1-13 Operating voltage LNB voltage (B1A, B1B) 25V, 400mA max Supply voltage (B2) 3.3V +/- 0.165V DC (B3) 3.3V +/- 0.165V DC (B4) 3.3V +/- 0.165V DC (VDD) 2.5V +/- 0.125V DC 1-14 Circuit block diagram Fig.1 1-15 Connection diagram Fig.2 1-16 Mass 35g 1-17 Storage condition Temperature 15 deg.C to 35 deg.C Humidity 25 %RH to 75 %RH Period 6 months 1-18 Environmental characteristics RoHS compliant (RoHS refers to the "DIRECTIVE 2002/95/EC OF T...