The foundation for the success of Epoch Microelectronics is the combination of a complex and highly skilled IC design team, dynamic interaction with our clients, and a heightened sensitivity to competitive marketplace demands and tight client production schedules. Epoch Micro is committed to delivering excellence to our clients by building collaborative working relationships through video conferences, frequent on-site visits, and on-going open dialogue.

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ZIGBEE: Transceiver : RF Front-end Circuits
» 0.15 um digital CMOS process without RF option
» Low power consumption
» Small area
19.2MHz 12-Bit Current-Steering IQ-DAC
» 6th-order 4.4MHz lowpass filter
  - Low-output noise for SAW-less direct-up modulator
  - Integrated RC-calibration
» Integrated bandgap for DAC & LPF common-mode and bias currents references
» Current consumption of 6mA from 2.8V supply
» IQ-DAC C/N of -166dBc/Hz @ 40MHz
» TSMC 65nm CMOS
Low IF RF CMOS Receiver

» Low-IF RF CMOS receiver
» On-chip RF AGC and BB VGA AGC control for baseband IC
» BB PGA for programmable output level
» Programmable BB amplitude and phase mismatch adjust for image compensation
» Programmable LPF corner frequency
» Programmable Fractional-N/Integer-N mode synthesizer
» Integrated crystal oscillator with programmable divided output clock
» Chip functionality achieved in 1st silicon pass
» TSMC 0.18um CMOS

RX-ADPLL for GSM / WCDMA Receiver

» All digital sigma-delta frequency synthesizer
» Single 2.8V supply
» Frequency coverage:
  - GSM: 3.2-4.3GHz
  - WCDMA-RX: 3.3-4.5GHz
» TSMC 65nm CMOS

Quad-band GSM receiver IC
0.25 µm, 0.18µm SOI BiCMOS
Low-noise frequency dividers for GSM transceiver IC
0.25 µm, 0.18µm SOI BiCMOS
IF-VCOs, RX-VCOs & TX-VCOs for GSM transceiver IC
0.35 µm SOI BiCMOS
LNAs, Mixers, VCOs, and quadrature signal generators for WLAN transceiver IC
0.13 um CMOS