ISL837030 Datasheet, PDF (1/25 Pages) Intersil Corporation – Modem Reference Designs

®
Datasheet
May 2002
ISL837030, ISL83740
FN8013.5
Modem Reference
Designs
The ISL837030 and ISL83740 Broadband Wireless Modem
Reference Designs support a wide range of modulation
orders and symbol rates.*
In both Reference Designs, sophisticated coding,
equalization, and symbol recovery techniques are employed,
resulting in robust wireless link performance.
The ISL837030 and ISL83740 Reference Designs support
high-capacity digital microwave radios with data rates up to
238Mbps (ISL83740) and 160Mbps (ISL837030). They
provide a flexible, high performance, economical solution for
fixed wireless applications.
* Differences between the ISL837030 and ISL83740 are marked in text as
needed. Also see Release Notes on page 25.
Benefits
• Eliminates the need to develop custom ASICs
• Optimizes wireless link capacity and Bit Error Rate (BER)
performance
• Enables rapid prototyping and compliance testing
• Proven technology
• Optional Evaluation Kit supports demo requirements,
performance evaluation, and lab testing
Features
• Programmable modulation
Both: QPSK, 8PSK, 16QAM, 32QAM
ISL83740 only: 64QAM, 128QAM
• Flexible data rates
ISL83740: up to 238Mbps
ISL837030: up to 160Mbps
• Programmable symbol rates
• Reed Solomon (RS) encoding/decoding
• Concatenated coding using RS and PTCM inner code
• FCC and ETSI spectral mask compliance
• Powerful equalization
Includes
• Sample ISL87060MIK Modulator and ISL87060DIK
Demodulator Chip Sets for development and test.
• Complete Manufacturing Documentation Package: Bill of
Materials, Schematics, PCBA Fabrication Files, including
Gerber Files.
• Test Documentation.
• Embedded Monitor and Control Software provides
comprehensive setup and test capabilities. Accepts
commands in binary or ASCII format.
Optional Evaluation Kit
The modem PCBA is mounted on an Evaluation Platform,
allowing the modem to be set up and tested in a standard lab
environment. Includes VHF and L-band IF Interfaces and a
sophisticated Graphical User Interface for Windows
operating systems. (ISL83700EVAL/ISL83740EVAL)
ISL87060MIK
Data
Modulator/
Encoder
ASYNC
Serial
Controller
DAC
Level
TrimDAC ^Offset
Differential
LPF
Baseband
Outputs
Baseband
Loopback
FLASH
ISL87060DIK
Data
Demodulator/
Decoder
Modem PCBA
Decimating
Matched
ADC
LPF
Filter
Differential
Baseband
Inputs
FIGURE 1 Simplified Block Diagram
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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