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Datasheet: SS1107 (Siliconians)

Data Communications Spread-spectrum Transceiver


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Single-Chip Spread Spectrum Processor for Wireless Data
Siliconians' SS1107 is a low-cost single-chip solution for spread spectrum wireless data commu-
nication applications. Typical applications include: acquisition, control, local area networks, wire-
less computer peripherals, wireless home devices and all proprietary applications for short range
and medium-speed data rates. These systems can operate as unlicensed, FCC Part 15-compliant de-
vices in the ISM bands.
The SS1107 provides a very high level of integration, low power consumption and low cost suit-
able for consumer applications. The SS1107 chip finally brings all of the advantages of spread
spectrum technology to applications currently limited to narrow band technology. With its integrat-
ed communication controller and error detection technique, together with the processing gain
achieved by the spread spectrum technology, the SS1107 will provide a very reliable and fast data
link for all of your wireless applications.
General Information
For SCADA applications, the SS1107 provides the capability to install a remote and extremely re-
liable wireless network inside of any building, therefore saving in installation costs and time.
With a maximum transmission rate of 400 Kbps, the SS1107 is an ideal solution for low-cost, high
speed wireless computer peripherals and other internet home appliances.
The chip includes an internal 8-bit microcontroller with ROM, RAM and all necessary peripheral
functions including UART, together with a baseband spread spectrum modem.
The spread spectrum baseband modem allows for point-to-point or point-to-multipoint links and
operates either in semi-duplex or full duplex using a Time-Division-Duplex (TDD) protocol. It
provides constant monitoring of the link quality with an indication of the relative Signal/Noise at
the baseband level. In full duplex mode, a low-speed signaling channel, independent of the main
data channel, allows for communication and control between the two sides of the link.
The SS1107 is a 3V CMOS device and contains power-saving features, including very low battery
drain in standby, for extended battery operation. It is packaged within an economic (64-pin) sur-
face-mounted package.
Main features
System Controller Functions:
8051 Compatible 8-bit CPU
Maximum Operating Speed: 24 Mhz
On-Chip 16 Kbytes ROM and 512 bytes RAM
External Memory Bus (2 MB address space)
Access to external data and/or program
Multiple Timers: General Purpose, Watch Dog, Time Base
External Interrupt Line & Internal Interrupt Sources
Operating Modes: Active / StopAll / SlowPeri
Peripheral Controller Functions:
Serial Peripheral Interface (SPI)
Serial I/O
UART (16550A-compatible, programmable baud rate, loop-back mode, two 16-byte FIFOs)
Optional Error Detection (Byte Parity Check and CRC V.41) module
Bidirectional I/O pins
Battery-Low Detect
Analog Data Input (A/D) and digital data input
Spread Spectrum Baseband Modem Functions:
Direct Sequence Spread Spectrum
3-bit/symbol Baseband Modulation
Processing Gain: 10.2 dB
Data scrambler for spectral whitening and added security
Dual-FIFO (30-byte deep)
Embedded Time-Division-Duplex (TDD) controller
RF Interface Signals
MSK on-the-air Modulation
Eight Programmable 32-bit PN Sequences
Programmable Station ID code
Independent low-speed signaling channel in full-duplex (6.4Kbps)
Signal Quality Indicator Output (S/N)
Chip Implementation:
Very low power in SlowPeri Mode
Power saving features in Active Mode
CMOS, 3V, 3.3V, 5V, 64-pin PQFP
Availability: 2Q98
Serial Peripheral
Interface (SPI)
PWR Management
Master Clock
Spread Spectrum
Baseband Modem
UART 16550A
Error Detection Module
Serial I/O
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