P
RODUCT
I
NFORMATION
APPLICATIONS:
•
Satellite receiver
•
Data receiver
•
Wide-band front end
RF Components
Group
BSFJ78G25
Satellite Tuner
FEATURES
•
Digital AFT out
•
Standup Package
•
AGC sample out
•
Compact, lightweight design (22 cc)
•
Electronic tuning with frequency synthesizer
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
Input Level
Input Impedance
Intermediate Frequency
Channel Selection System
Operating Supply Voltage
Operating ODU Voltage
Operating Tuning Voltage
IF Bandwidth
Demodulation System
Input Structure
Prescaler Division Ratio
900 to 2,150 MHz
-60 to -30 dBm
75
Ω
479.5 MHz
Frequency synthesizer with
LC7215
5
±0
.3 V
25 V
30
±1
.5 V
27/18 MHz
PLL
F type female
256
SHARP [ SHARP ELECTRIONIC COMPONENTS ]
