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