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Products - Real-time System Solutions

PMC Timing and Control Unit (PMC TCU)	ADX1480-4 Analog-to-Digital Converter
Fiber Optic Companion Board (FO-CB)	RDS-300E
Differential Companion Board	RDS-300X

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PMC Timing and Control Unit (PMC TCU)

Real-time digital control plays a major role in many digital systems; time-critical hardware events must be scheduled in response to real-time software decisions. The typical solutions, digital I/O boards and custom timer-based hardware, fall short of an ideal solution. EWA GSI’s PMC TCU board, when integrated on a VME/PMC carrier, combines the flexibility of software programmability with the benefits of deterministic hardware outputs in a single 6U VME slot. Applications include radar system control, real-time control of time-critical processes, real-time control of processing systems, and generation of real-time stimulus for hardware test.

PMC TCU Board at a glance:

Physical Link between Real-time Software and Deterministic Hardware Outputs
Continuous, Uninterrupted Output of 96 Independent Scheduled Events
20 nsec Scheduling Resolution
Sub-millisecond Minimum Frame Length
PMC Module
Embedded C6416 Processor
User applications are developed with Texas Instruments® PC-based tools and loaded via a carrier board, or made residential in the onboard 1 Mbyte Flash memory

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Fiber Optic Companion Board (FO-CB)

The Fiber Optic Companion Board (FO-CB) offers users a unique solution for sending real-time control signals reliably over long distances. The FO-CB translates TTL I/O signals available at the VME P2 backplane into fiber optic signals available at the front panel. Two Xilinx FPGAs, one dedicated to transmit operations and one dedicated to receive operations, are used to steer real-time commands to/from the VME P2 backplane from/to the front panel fiber optic links. Each FPGA can be programmed independently to direct realtime signals through any combination of 6 - 200 MHz (200 MB/s) fiber optic links capable of transmitting reliable signals up to 1 km.

Fiber Optic Companion Board at a glance:

Translates TTL to Fiber Optic
Access to 64 TTL signals on P2 VME Backplane
6 Independent Fiber Optic Ports on Front Panel
Bi-Directional Fiber Optic Ports
200 MB/s Fiber Optic Ports

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Differential Companion Board

The Differential Companion Board translates the TTL I/O from the P2 connector to RS422-level differential I/O. The differential I/O provides noise immunity for real-time control, as well as drive capability for long cable runs.

Differential Companion Board at a glance:

Provides System-level Differential I/O access to VME P2 Connector
64 Differential Signals on Front Panel (16 configurable between input and output)
3-50ohm BNC Outputs on Front Panel
6U x 160 mm VME Module
64 Front Panel TTL Signals Monitor all P2 Row A and C Signals, whether used as input or output
24 Total Differential I/O Configurable as Input or Output
200mA @ 5V DC

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ADX1480-4 Analog-to-Digital Converter

EWA GSI’s ADX1480-4 analog-to-digital converter (ADC) offers four high speed ADC channels on a single 6U VME Module. Each channel includes a 14-bit ADC with sampling rates to 80 MHz. The ADC channels each have a separate analog input buffer, optional filter, and pre-processing capabilities and are electronically selectable as either AC or DC coupled inputs. The pre-processed data output is available at any combination of four independent, 1Gbps, fiber optic ports. All fiber optic ports are Serial FPDP (ANSI/VITA 17.1) compliant and are compatible with Systran's FibreXtreme SL100 series data link system.

The clock distribution network automatically detects the presence of a TTL or sinewave external clock source, or selects the internal clock source in the absence of an external clock source detection. A single DAC (Digital-to-Analog Converter) output provides the capability to view the analog version of sampled or processed waveforms from any of the four input channels. The ADX1480-4 conversion performance rates include SFDR of over 80 dB when sampling baseband signals, and near-in SFDR of over 90 dB when sampling IF signals. The ADX1480-4 also boasts synchronous conversion, pre-processing capabilities, and built-in test features.

ADX1480-4 Analog-to-Digital Converter at a glance:

4 Parallel A/D Conversion Channels
14-Bit, 80 MSPS each channel
6u X 160mm VME Module
External A/D Clock Input and Onboard Oscillator
Controlled Inter Channel A/D Clock Skew
Built-In Test (Bit) Functions with Standalone Test Mode
Spurious-Free Dynamic Range of 80 Db
Developed as Part of Radar Signal Processor Subsystem

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RDS-300E

EWA GSI’s RDS-300E offers eight 300 HMz Direct Digital Synthesis (DDS) channels on a single 6U VME module. All channels are independently controlled and are identical in hardware configuration. Each DDS channel consists of a user specified BPF, a differential I/Q modulator, an amplifier, a coupled test port (requires double-wide front panel), and an external independent LO input for signal up-conversion.

The RDS-300E was developed for use as a real-time waveform generator in a multi-channel radar system. The RDS-300E can provide clocks, pulse modulated waveforms, and frequency hopped waveforms for real-time applications. It is also an excellent solution for testbeds requiring multiple IF synthesized signals. Specifically, the RDS-300E is capable of generating CW, FSK, BPSK, PSK, CHIRP, and AM waveforms.

RDS-300E at a glance:

8 Independent DDS Channels
IF Outputs up to 80 MHz
Micro-Hertz Tuning Resolution
Controlled Clock Skew Channel-to-Channel
80 dB SFDR
FSK, BPSK,PSK, CHIRP and AM Operation
6V VME Form Factor