STV6110A - STMicroelectronics

STV6110A 8PSK/QPSK low-power 3.3 V satellite tuner IC

The STV6110A satellite tuner is a directconversion (zero IF) receiver dedicated to digital TV broadcasting. On the RF input is a low noise amplifier (LNA), with buffer to supply the RF output for loop-through, and a continuously variable gain LNA to ensure an optimal signal level for the two mixers. Each mixer, which down-converts the signal to baseband, is .

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■ Description The STV6110A satellite tuner is a directconversion (zero IF) receiver dedicated to digital TV broadcasting. On the RF input is a low noise amplifier (LNA), with buffer to supply the RF output for loop-through, and a continuously variable gain LNA to ensure an optimal signal level for the two mixers. Each mixer, which down-converts the signal to baseband, is followed by a low-pass filter and amplifier. The baseband gain can be varied by programming a register via the I2C bus. The LO signals are provided by an integrated PLL which contains an on-chip volt.