Datasheet > STV6110A

STV6110A

更新时间： 2024-02-25 17:18:14

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
5页	52K
描述
8PSK/QPSK low-power 3.3 V satellite tuner IC

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STV6110A 数据手册

STV6110A

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

Data Brief

Features

Description

■ RF to baseband 8PSK/QPSK direct conversion

■ Single 3.3 V DC supply

The STV6110A satellite tuner is a direct-

conversion (zero IF) receiver dedicated to digital

TV broadcasting.

■ Input frequency range 950 MHz to 2150 MHz

■ Supports 1 to 45 Msymbol/s

On the RF input is a low noise amplifier (LNA),

with buffer to supply the RF output for

■ On-chip RF loop-through

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.

■ Fully integrated PLL frequency synthesizer for

DVB-S2 (including loop filter)

■ Extremely low phase noise compliant with

DVB-S2 requirements

■ Low external component count

■ Low power consumption

The LO signals are provided by an integrated PLL

which contains an on-chip voltage controlled

oscillator (VCO) meeting stringent phase noise

requirements. The PLL loop filter is integrated.

The LO frequencies are programmable.

■ Flexible crystal frequency output to drive the

demodulator IC

■ Continuously variable gain: 0 to 65 dB

The comparison frequency for the phase-

frequency detector (PFD) is generated by dividing

the crystal oscillator reference frequency. The

crystal frequency can be from 16 MHz to 32 MHz

depending on application.

■ Additional and programmable gain on

baseband amplifier: 0 to 16 dB

■ Programmable 5- to 36-MHz cut-off frequency

(butterworth 5th-order baseband filters)

■ Compatible with 5-V and 3.3 V I²C bus

RF_OUT

RF_IN

AGC

PLL, dividers

DC offset compensation

SCL

XTAL_IN

I C bus interface

Amplifier

XTAL_INN

XTAL_OUT

SDA

August 2008

Rev 1

1/5

For further information contact your local STMicroelectronics sales office.

www.st.com

12 3 4 5

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