ST-135 Filtronic Compound Semiconductors, ST-135 Datasheet

ST-135

Manufacturer Part Number

ST-135

Description

Software Radio Demodulator for demodulating diverse signals

Manufacturer

Filtronic Compound Semiconductors

Datasheet

1.ST-135.pdf (1 pages)

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Features

• Demodulates BPSK,

• PSK symbol rates from

• FSK symbol rates from

• Phase estimator assisted

• Tuning resolution of 1 Hz

• Java

• NT device drivers

• TDM, TDMA, Push-to-Talk,

• Matched filter CDMA

• FEC decoder (opt.)

Ordering Information

ST-135-xxx Burst Demod

*Chassis are available upon request

-ECL : ECL input

-DMF : CDMA option

-FEC : FEC option

Double width VME: 6U x 160mm

-000 : Analog input

www.sigtek.com

DBPSK, QPSK, DQPSK,

OQPSK, MSK, and FSK

1.2 kS/s to 16 MS/s

1.2 kS/s to 500 kS/s

TDMA burst acquisition

TCP/IP interface

(Solaris

SCPC

spread spectrum RX (opt.)

ST-135 VME Card

remote control over

drivers optional)

A member of Filtronic Sigtek’s high performance VME software radio family, the

ST-135 high performance software radio demodulates a growing set of signals

including BPSK, DBPSK, QPSK, DQPSK, FSK and MSK. Bit rates from 1.2 Kbps

to 32 Mbps with future growth to 40 Mbps and beyond. The expandable software

radio architecture allows addition and enhancement of demodulation types.

Control software includes a Java

operation and NT device drivers. Options include a direct sequence CDMA

spread spectrum receiver and FEC decoder.

INPUT

OUTPUT

DEMODULATION

FEC Decoder/Capture (optional)

Direct Sequence CDMA Spread Spectrum Receiver (optional)

9075 Guilford Road, C-1 • Columbia, MD 21046 • 410-290-3918 • 410-290-8146 fax

Analog

IF:

Level:

External Reference:

Connector:

Soft decision bits:

X-Y constellation:

Signals:

Rates:

Burst acquisition:

Carrier error tracking:

Viterbi FEC:

Capture buffer:

Signals:

Chip rates:

Sequence Length:

Acquisition:

Tuner/ADC

Analog

Carrier

NCO

ST-135 Software Radio Block Diagram

Digital Down

Converter

Software Radio Demodulator

for demodulating diverse signals

Despread

(optional)

CDMA

120 to 200 MHz 45 to 95 MHz (optional)

-10 to -60 dBm

10 MHz

SMA, 50 ohm

RS-422 and VME P2

SMA, high impedance scope

BPSK, DBPSK, QPSK, DQPSK, FSK, and MSK

PSK from 1.2 kS/s to 16 MS/s

FSK from 1.2 kS/s to 500 kS/s

Phase estimator assisted

5% of symbol rate

1/2, 3/4, and 7/8 with constraint length 7

2 Msamples x 16-bit I and Q

BPSK and QPSK

1 MHz to 16 MHz

1024 length, matched filter assisted,

serial despreader

to 2

Symbol

control application for TCP/IP remote

NCO

ST-135

(SRAM loadable)

Demod

Digital

Mapper

Bit

(optional)

Capture

FEC

001-0135-700 Rev. 1

Capture

I and Q

Decisions

Soft

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