3 Jan 11 01:46
evo 24306060 p.1
FAX
Date: 13-01-2011
To
Bharat Electronics Ltd
I.E. Nacharam,
Hyderabad — 500076
India
Fax: 040-27171406
Sub: W-band Seeker Demand.
Ref: RCl/DCMM/LP/LPD II/T-00100 (R).
Sir/Madam,
We intend to develop the seeker in two parallel routes.
1. All the electronics (SSE, DSP) to be accommodated in a single hardware
like a Multi Function Module (MFM). The specifications for this approach
have already been sent to you through our earlier tender enquiry.
2. We also intend to develop the seeker as per existing hardware i.e., SSE,
DSP as separate modules. The specifications for this requirement are
enclosed herewith.
It is kindly requested that you may quote for both the approaches.
One of these two approaches will be selected and will be informed
during the TPC meeting.
Thanking you.
- co.Not-
B.S.V. PRASAD, Sc 'F'
MMW SD/DRFS
A GM Cam)
I al_ It ctil 14.ec Vou-Lf scil_e
OTh
1
evo 24306080 p.2
3 ..11-1 11 01:48
Hardware details of LAI &i id Seeker Servo Electronics
Servo electronics consists of the following components:-
I .PCB's and Connectors of servo electronics as shown in the table below:
S.No Description Quantity
1 PCB 4
2 Front End PCB 1
3 Motherboard 1
4 PCB connectors(17 Pin) 4set
5 D-Sub 15Pin High Density I set
6 D-Sub 9Pin iset
7 D-Sub 25Pin 1 set
II.Power Consumption of servo electronics as shown in the table below:
S.No Nomenclature Quantity Power
Consumption
1 Quad OpAmp 20 220mA
OPA403SG
Burr-Brown
2 Switch 4 40mA
DG403AK
Analog Devices
3 Multiplier 4 30mA
AD534TD,
Analog Devices
4 Oscillator 2 40mA
4423,Burr-Brown
5 Power OpAmp Each 1 200mA
OPA2541,3573AM
Burr -Brown
Total=530mA
III.DC-DC Converters (CDI) (i) ±15V, 15W-1Module
(ii)±15V, 20W-1Module
Apart from the above ,following components also to be used
Capacitors-35(Assorted)
Resistors-250(Assorted)
Potentiometers-20(Assorted)
3 In 11 01:46 evo 24306060 p • 3
Hardware details of VE$ 021>seeker signal processor
Hardware consists of
ADSP21060 SHARC processor
- Detection and tracking algorithms run on this processor
Am29F010
- 1 megabit CMOS 5.0V Flash memory
AS7C4098-12J1
- Four 256K x 16 CMOS SRAM
FLEX10k3ORI
Generates timing and control signals:
Opens a window of 6.4usec during which ADCs output data is
stored into memories.
- Generates ADC sampling clocks for four ADCs
Generates Addresses, memory write signals
Generates hardware interrupt signal-for detection and track
routines
- Provides interface to the display unit
AD7306
- RS422/Rs232 level converter
Five Analog-to-Digital Converters
- Four 12bit, 40MSPS ADCs working at 10MSPS, input range 2V.
- One eight input analog Multiplexure is interfaced with one 12bit,
40MSPS ADCs working at 30KSPS
o InputO is not used
o Input1 to Input5 are available for external inputs
30,1_11
3 Jan 11 01:46 eva 24306060 p.4
•
o Range of external inputs is ±10V
o Input6 to Input7 are not used (connected GND)
Eight Digital-to-analog Converters (Five + Three)
- Four Digital-to-analog Converters: 16bit, 6us settling time DACs
o Two for LOS errors, +10V output
o Two for Voltage Controlled Attenuators, 0 to 10V output
- One Digital-to-analog Converters: 12bit, Sus settling time DAC
o Analog range output, 0 to 5V output
(This is replaced with 16bit, 6us settling time DAC for analog range
output).
Three Digital-to-analog Converters: 16bit, 6us settling time DACs
are incorporated
o Two for integrated LOS error, 0 to 2V output
o One spare, ±10V output
RS232/RS422 communication
- One RS422
Four Qaud Op-Amps as Buffer amplifiers AD713 equivalents of Burr-
Brown make.
Four DC/DC converters
- 16-40V input
For Signal Processor For IF module
Output: +5V, 18Watts - One Output : +15V, 18W
Output +/- 15V, 10W — One
Output +/- 5V , 10W — One
