BSFJ78G25 データシートの表示（PDF） - Sharp Electronics

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BSFJ78G25

Satellite Tuner

Sharp Electronics 

PRODUCT INFORMATION

BSFJ78G25

Satellite Tuner

FEATURES

• Digital AFT out

• Standup Package

• AGC sample out

• Compact, lightweight design (22 cc)

• Electronic tuning with frequency synthesizer

APPLICATIONS:

•

Satellite receiver

•

Data receiver

•

Wide-band front end

RF Components

Group

DESCRIPTION

The BSFJ78G25 is an integrated single conversion tuner

and FM demodulator. It was designed for the reception

of analog signals. It has a dual input and a combined

video and audio output. The input frequency range is

900 to 2,150 MHz. A 27/18 MHz switchable bandpass

filter is positioned at the first IF. Bandwidth selection is

made by applying an external voltage via an external pin.

A digital AFT output is provided for evaluation of receiver

system accuracy.

This tuner can be controlled by an internal three wire

PLL interface. A 1/256 prescaler is internal to this tuner

and provides the ability to interface with the PLL.

For more information on this product, please contact

your local Sharp representative.

FJ78G25-1A

SPECIFICATIONS

Receiving Frequency Range 900 to 2,150 MHz

Input Level

-60 to -30 dBm

Input Impedance

75 Ω

Intermediate Frequency

479.5 MHz

Channel Selection System

Frequency synthesizer with

LC7215

Operating Supply Voltage 5 ±0.3 V

Operating ODU Voltage 25 V

Operating Tuning Voltage 30 ±1.5 V

IF Bandwidth

27/18 MHz

Demodulation System

PLL

Input Structure

F type female

Prescaler Division Ratio 256

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