SST001 Spread Spectrum Radio Transceiver

Circuit Card Assembly

Description

The SST001 is a multimode Spread Spectrum Radio Transceiver Circuit Card Assembly, suitable for Frequency Hop (FH) or Direct Sequence (DS) applications. Although this transceiver can be operated in conjunction with any appropriate CMOS interface, it has been specifically optimized for operation with PSI's QFAST™ Spread Spectrum Modem IC, making it particularly well suited for high speed burst data communications. The low profile packaging has been designed specifically for portable computer peripheral applications using the PCMCIA package outline.

Applications

FCC Part 15.247 Spread Spectrum Devices
Wireless Data (WAN/LAN)
Cordless Telephony
Wireless Intercom Devices
Packetized Data Modems

Features

902 - 928 MHz
FCC (CFR 47) Part 15.247 Compliant.
QFC001 QFAST™ Modem IC Compatible
Configurable for FH and/or DS
Selectable data rate options
Selectable chip to bit ratio options
Half Duplex Transceiver
Single 50 ohm Antenna Port
Frequency Synthesized Local Oscillators
3 Wire Serial Interface
Triple Modulus Prescaler
External Reference Oscillator
Selectable Transmitter Power Output
Low Power Consumption
Single + 5 Volt DC Power Input
Digital I/Q Inputs and Outputs.
30 Pin I/O connector.

**Operating Conditions**
Parameter	Min.	Typ.	Max.	Units
DC Operating Voltage (V_CC)	4.75	5.0	5.25	Volt
DC Operating Current (I_CC) in Receive		65		mA
Ambient Temperature (T_a)	-30	25	60	degrees C

SST001 Block Diagram

ABSOLUTE MAXIMUM RATINGS
Parameter Operation outside of these limits may cause permanent damage

DC Supply Voltage (V_CC) 0.0 V to + 6.0 VDC

Input Pin Voltage (V_IN) -0.3 V to V_DD + 0.3 V

Input Pin Current (I_IN) 10 mA at 25 C

Storage Temperature (T_STRG) -40 C to +85 C

Transmitter ON Time (50 % Duty Cycle) 30 seconds Max. at maximum power

Specifications (T_a = 25 C)
Parameter Min. Typ. Max. Units Notes

Synthesizer Reference Frequency 10 40 MHz

Transmitter Power Output -5 +27 dBm 4 Levels Selectable

Transmitter In Band spurious -50 -65 dBc Unmodulated Carrier

Receiver Sensitivity -94 dBm 100 kBps Data Rate, BER 10^-5

Receiver Spurious Rejection -60 dB

Receiver IF Bandwidth

Wide 9 10.5 MHz at - 6 dB

Medium 5 5.8 MHz at - 6 dB

Narrow TBS FH only; to be specified.

Receiver Out of Band Rejection 40 50 dB f_o 15 MHz

Current Drain

Standby 0.1 0.5 mA

Receive 65 75 mA

Transmit 450 500 mA at Max. Output Power.

**ABSOLUTE MAXIMUM RATINGS**
Parameter	Operation outside of these limits may cause permanent damage
DC Supply Voltage (V_CC)	0.0 V to + 6.0 VDC
Input Pin Voltage (V_IN)	-0.3 V to V_DD + 0.3 V
Input Pin Current (I_IN)	10 mA at 25 C
Storage Temperature (T_STRG)	-40 C to +85 C
Transmitter ON Time (50 % Duty Cycle)	30 seconds Max. at maximum power

**Specifications (T_a = 25 C)**
Parameter	Min.	Typ.	Max.	Units	Notes
Synthesizer Reference Frequency		10	40	MHz
Transmitter Power Output	-5		+27	dBm	4 Levels Selectable
Transmitter In Band spurious	-50	-65		dBc	Unmodulated Carrier
Receiver Sensitivity		-94		dBm	100 kBps Data Rate, BER 10^-5
Receiver Spurious Rejection	-60				dB
Receiver IF Bandwidth
Wide	9	10.5		MHz	at - 6 dB
Medium	5	5.8		MHz	at - 6 dB
Narrow		TBS			FH only; to be specified.
Receiver Out of Band Rejection	40	50		dB	f_o 15 MHz
Current Drain
Standby		0.1	0.5	mA
Receive		65	75	mA
Transmit		450	500	mA	at Max. Output Power.

NOTES:

QFAST is a Registered Trademark of PROBE Science, Inc.

FCC Type Acceptance is the responsibility of the OEM user.

Technology Licensing and Design Support for custom applications is available.