TDA8262HN/C1 tuner说明Fully integrated satellite tunern Direct conversion QPSK and 8PSK demodulation (ZIF) n 3.3 V DC supply voltage (no 30 V required) n Power-down modes selectable by bus n 950 MHz to 2175 MHz frequency range n High range input level; u −70 dBm to −15 dBm at 75 ? (normal mode) u Up to 0 dBm (20 dB attenuation con?guration). n Low noise RF input (integrated LNA) n RF loop-through n 0 dB to 55 dB continuous variable gain on RF input n RF input level detector n Switchable 0 dB to 9 dB additional gain on baseband output ampli?er n High AGC linearity (< 0.7 dB/step when used with an 8-bit DAC), AGC controlled voltage between 0.3 V and 3 V n Programmable 5 MHz to 36 MHz 5th-order baseband ?lters for I and Q paths n Fully integrated PLL frequency synthesizer n Low phase noise fully integrated oscillator n Operation from a 16 MHz crystal or external clock n 5 frequency steps from 125 kHz to 2 MHz n Crystal frequency output to drive the demodulator IC n Compatible with 5 V and 3.3 V I 2C-bus n Fully compatible and easy to interface with the PS digital satellite demodulators family n 32-pin low thermal resistance package. Type number Orderable part number Ordering code (12NC) Package TDA8262HN/C1 TDA8262HN/C1,118 9352 753 21118 (HVQFN32)
n Direct Broadcasting Satellite (DBS) QPSK demodulation |
