Contract
Engineering Services
Since
1992 we have been providing electronic contract engineering design
services to our customers. We have provided engineering services
at variety of levels that meet customer needs. We offer
customers engineering resources without long term cost commitments.
Technology
Experiences:
We
have the standard design capabilities including analog, digital,
printed circuit board layout and software design. Our more
unique design capabilities include:
 Precision
high-resolution analog front-ends from 16-bits to 24-bits (real engineering
bits)
High
speed ADC front-ends, from 200KSPS to 20MSPS typical.
Software
Defined Radio (SDR)
High
density digital design utilizing Xilinx, Actel, Altera or Atmel FPGAs
PC/104,
ISA, PCMCIA, PCI, VXI, VME and CAMAC bus technologies
Environmental
temperature drift design validation
Switching
power supply DC-DC design
Software
or hardware protocol stacks
Fast
track prototyping and small production runs (read
more...)
Efficient
production test fixturing
Software/hardware
design tradeoffs
Mean
Time Between Failure (MTBF) analysis
L-Band
receivers
Hardware Experiences:
Apex
has been developing and manufacturing high resolution analog front-ends
since 1998. OEM designs from 16 bits to 24 bits are typical. Additional
digital signal processing subsystems have been developed and precision
front-ends that accept +/-10 volt input signals.
Precision
current sources with dynamic range of 23-bits.
FPGA/CPLD
experiences (partial list):
100
MHz Counter/Timers
Time-to-Digital
Converters
Serializer/Deserializers
ADC/DAC
SPI interfaces
PCMCIA
Card Interface (PC-CARD 95 compliant)
PWM
controllers
Quadrature
encoder counters including quadrature, BISS and EnDAT
Asynchronous
16450 UART compatible
Watchdog
timers
scalable
word size SPI serial interface
video
controllers to drive QVGA panels
variety
of over-samplers to 400 mega-samples per second
dual-ported
and multi-port memory controllers
AM
demodulators
PS/2
compliant printer port
video
raster scan generators
multiplexed
LED display drivers
112-bit
floating point processor with 96-bit mantissa
GPS
PPS counters
Multi-channel
data aquisition controllers
Apex
has developed special fiber-optic communications links running at 300
megabits per second.
Apex
has developed digital quadrature detectors and high speed DSP filtering
for special software radio applications, utilizing FPGA technology
as well as AD6600/AD6620 family of parts.
We
have both hardware and software design experiences with the following
microprocessors and microcontrollers: x86, TMS320C50/C542 DSP,
PICs, PicoBlaze, 8051, 2901 bit-slice, Z80, 6800, 6502, 1802 and specials.
Software Experiences:
C/C++
embedded real-time and C/C++ GUI applications
Custom
compilers
TMS320C542
Digital Signal Processing (DSP)
Automatic
code generators
Automated
Server Pages (ASP) and html
Graphical
User Interfaces using Visual Basic 5.0 and 6.0
DLLs
and DOS applications written using PowerBasic
PEG
GUI tools for applications that run in DOS but look like windows applications
Excel
scripts for data automation
PowerPCB
and PowerLogic VBscripts for design automation
Sophisticated
calibration applications
Real-time
kernels
Serial
protocol stacks
Special
configured embedded DOS and custom BIOS for x86 hardware.
Embedded
GUI using eMbedded Visual Basic for Windows CE
Heterogeneous
PCB panelization scripts
Special
Equipment/Tools:
Environmental
temperature chamber from -60oC to +300oC
Metrology
voltage source capable of 8.5-digits (27-bits)
Signal
generators to 2.6 GHz
Contact
us today for contract engineering solutions 
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