STV6111B

8PSK/QPSK,低功耗3.3V卫星调谐芯片

Description

The STV6111 satellite tuner is a direct-conversion zero IF receiver for digital TV broadcasting.

Features

■ RF-to-baseband direct conversion architecture

■ Single 3.3-V DC supply, low consumption

■ Outstanding performance in heavily loaded spectrum conditions

■ Input frequency range: 950 to 2150 MHz

■ Supports 1 to 60 Msymb/s using internal filter

■ RF-AGC or channel-AGC support

■ Extremely low-phase noise, compliant with DVB-S2 requirements using fractional-N synthesizer

■ Low external component count

■ Flexible crystal frequency output to drive the demodulator and/or other tuner ICs

■ Continuously variable gain

■ Programmable 6 to 50 MHz cut-off frequency Butterworth 5th-order baseband filters

■ Specific operating mode for symbol rates up to 220 Msymb/s

■ Compatible with 5-V and 3.3-V I2C bus