PCI based 1553B Board
We have designed PCI 1553b Board in which we used PCI 9030 for PCI interface and HI-6110 is used to implement the 1553b data communication protocol.
The HI6110 can be configured as Bus Controller (BC), a Remote Terminal (RT) and a Monitor Terminal (MT). Each bus receiver has a dedicated Manchester decoder the chip provides a simple interface between a host subsystem and a MIL-STD 1553 dual redundant Bus. Messages are processed one at a time. The chip automatically handles message formatting, error checking, message data buffering, and protocol checking and default responses.
VME based 1553B and Arinc Board
We have designed 1553b Board in which we used HI-3220 ARINC 429 which has 16 Receiver and 8 Transmitter, HI 6138 for 1553b data communication protocol.
The HI-3220 is the successor to the HI-3200 and HI-3210 with expanded channels and new feature enhancements designed to increase host communication efficiency. The HI-3200 has a maximum SPI rate of 40MHz. HI6138 can be configured as Bus Controller (BC), a Remote Terminal (RT) and a Monitor Terminal (MT). Each bus receiver has a dedicated Manchester decoder the chip provides a interface between a host and a MIL-STD 1553 dual redundant Bus.
STM Processor Board
We have designed a processor board using STM processor in which Ethernet interface is implemented, the software required for this ethernet interface were written by us. and it can be used either of taking power from input or through USB. The processor used is STM32H723ZGT6. Ethernet phy LAN8742A is used to interface Ethernet signals
ARM Processor Board
We have designed a processor board using ARM processor-LPC2294 to read /write IO channels.
This card has been designed to produce 16 channels of analog signals in the range of +/- 10V and read 64 Analog channels using processor LPC2294 (ARM7CORE TDMI) This Card has been controlled by the processor. It reads all analog signals and takes those signals through MUX-ADG526AKR. AD7671 is the ADC used to convert the analog signals in to 16-bit digital word which will be read through Processor. DAC7744E is used here to convert the 16bit digital word comes from processor to analog Signals. LT1019 are used for Voltage reference. CPLD used for generating control signals It reads and writes 144 channel digital signals using PPI-8255.This Card has been controlled by the processor. It reads and writes 8-bit digital signal.8 bit comes from processor and given to PPI (6 no: are used) through transceiver for voltage conversion CPLD used for generating control signals.
Railway units
We have designed FM Transmitter and Receiver which replaces old system in railways with our compact unit. This unit is designed for block communication in railways between stations.
It contains two units Transmitter and receiver. It is CPLD based units. CPLD we used is XC95144Xl. All the logics are implemented in cpld. It transmits signal of 1800Hz and 2700Hz from Tx to Rx. Rx enables the corresponding relays based on received coded datas.
The High frequency communication system
We have designed The High frequency (HF) communication system is an airborne communication system designed to establish a communication between (pilots) air to air as well as air to ground station in jaguar flight. This system is having six LRU's like Receiver-Exciter unit, Power amplifier, Antenna tuning unit, Controller unit.
The Receiver-Exciter unit (Rx-Ex) converts the incoming RF signal into audio signal and gives to pilot headset in reception mode. The super-heterodyne receiver receives the RF signal having the frequency of 2-30MHz with sensitivity level of -110dBm. The LNA is used to improve the sensitivity of the system. The seven-octave band pass filter is used to improve the image rejection better than 100dB. The mixers are used to obtain the IF frequency of 109.7MHz and 10.7MHz by doing the up-conversion and down-conversion respectively. DDS based frequency synthesizer generates the LO for the mixer. The OCXO is used for better phase noise as well as spurious response. The high-speed ADC and DAC are used to interface with the FPGA where modulation and demodulation can be performed digitally.
Distance Measurement Equipment
It is an airborne system. we designed to measure the slant range between the aircraft and airport. It generates the pulse pair to the ground beacon and receives the reply signal and processes it to get the slant range between them. The transmitter frequency range is 962-1213MHz and the receiver frequency is 1025-1150MHz.
DAWN LRU Testers
The RF Unit is used in the ECM pod. It receives the threat signals through the antenna and also transmits the pulse threat signals after processing. The RF Unit operates as a channelized receiver, which divides the deceiving receiver's frequency range into:
Range B1: 2.5 to 7.2 GHz
Range B2: 7.6 to 18.0 GHz
Signals in the B1 range are up-converted into the B2 range and then processed in a similar manner to those in the B2 range. For this reason, the B2 signal processing will be described first, and the B1 signal processing later. RF unit test set generates and measures the RF signals as well as Logic signals to test the RF unit and System unit in the jaguar. All the instruments are connected through the GPIB in the RF unit test set.
PMC based high speed ADC card
We have designed 2 channel PMC based high speed ADC card in which PLX PCI 9656 is used for PCI interface. ADS5482 high speed ADC is used which is 16bit 105MSPS. NB7L572 is used clock muxing.14bit 165MSPS high speed DAC904 is used to produce analog channels. XC4VSX55-11FF1148I virtex4 is used for high speed logical operation.
SoC based Controller Hardware Platform
Altera Cyclone V FPGA ARM 9 Processor SoC 5CSEBA6U1917NTS is implemented which has OLED display and interfaces like Ethernet (10/100 Mbps), USB (2.0/3.0) and RS232 interface. KSZ9021RN Phy is used for interfacing ethernet signals. TUSB1210BRHBTQ1 USB transceiver is used.
SBC
We are designing SBC using INTEL SKL-S LGA1151 and Chipset H110 with PCIE x8 lane, through which Gigabit ethernet interface is implemented using LAN8111H Phy. 6 USB 2.0 interfaces are used. 4 USB 3.0 interfaces are interfaced. 16 PCIE lanes are available. one HDMI, one DVI and One VGA port are implemented for display. DDR4 gen is used.
