TahoeRF

Tahoe RF Semiconductor develops and manages the manufacture of customer-specific analog & RFIC chips and chipsets.

The company has a rich portfolio of silicon proven IP and expertise in many wireless, high speed, and ultra-low power applications. The team has demonstrated many first pass successes on design and delivery of complex ICs optimized for customer's sub-systems and systems. A proven and rigorous design methodology has been developed to help assue our high rate of success.

Tahoe RF's award-winning product solution areas include:

· GPS Receivers

· Cellular and Wi-Fi Transceivers

· Pin Electronics ICs (ATE)

· Frequency Synthesizers

· Monolithic Synthesizer + VCO Combinations

· Mixed Signal SoC (System on a Chip)

· Ultra-Low Power Transceivers

· Satellite Communication ICs

· Analog Signal Conditioning

· Tire Pressure Measurement ICs

· Switch-Mode Voltage Regulators

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Our Expertise

The Tahoe RF team expertise spans many applications. Our solutions include innovative circuit architectures and techniques in the following areas:

· Extremely low power designs techniques for RFID-like applications

· High performance designs (up to 12 GHz)

· Radiation Hardened design techniques

· RF, mixed-signal and full RTL digital flow

Technology Experience

Tahoe RF is foundry agnostic and will select a technology best suited to the customer’s specific requirements. The solutions have been implemented in 0.5 micron to 90 nm technologies. Tahoe RF has developed and maintains strong relationships with most major foundries. Tahoe RF has been certified as “Ready for IBM Technology” by IBM, and is winner of IBM 2006 Beacon Award for the best “Microelectronics Solution”. In addition, Tahoe RF has developed solutions using following foundries:

· IBM

· TSMC

· Jazz Semiconductor

· Atmel

· Fujitsu

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Silicon Proven IP Blocks

Tahoe RF maintains an impressive catalog of silicon verified IP building blocks and solutions which is leveraged in the development of new projects. These blocks lower the technical risk, development cost and allow us to deliver faster solutions to our customers.

The following functions are representative of Tahoe RF Semiconductor's extensive silicon-proven IP library, which may be used directly or modified to meet customer-specific requirements:

· VCOs and Oscillators

· Integer-N and Frac-N Frequency Synthesizers

· RF Front-ends

· LNAs, Mixers

· Amplifiers, gain stages

· PA & PA drivers

· Drivers and Comparators

· On chip regulators

· Buck Regulators

· Switch-cap filters, gm-C filters

· Data converters A/D and D/A

Sample IP blocks

Category

Items

LNA

TRFS-051 WCDMA LNA (PDF file)

Mixer

TRFS-101 Dual RF Mixer (PDF file);
TRFS-102 WCDMA Mixer (PDF file);
New: TRFS10004 GPS L1/L2 Mixer Pair (PDF file)

LNA+Mixer

TRFS-151 900MHz LNA/Mixer (PDF file)

Direct Conversion Receiver

TRFS-152 WCDMA Receiver (PDF file)

VGA

TRFS-153 Baseband VGA (PDF file);
TRFS-155 RF VGA (Rx) (PDF file);
TRFS-303 RF VGA (Tx) (PDF file);
TRFS-304 IF VGA (PDF file);
New: TRFS30005 High Linearity GPS AGC (PDF file)

Quadrature Circuits

TRFS-154 Quad Generator (PDF file)

VCO

TRFS-201 Fully Integrated CMOS 3.2 GHz VCO (PDF file);
TRFS-202 Receiver VCO (PDF file);
TRFS-203 Transmitter VCO (PDF file);
TRFS-204 VCO(PDF file) ;
New: TRFS20009 Dual Frequency GPS VCO (PDF file)

PLL

TRFS-451 Fractional-N Synthesizer (PDF file);
TRFS-255 PFD-CP(PDF file);
New: TRFS25007 Ultra Low Power FSK-ASK Transmitter(PDF file)

VCO + PLL

TRFS-251 VCO/PLL Synthesizer (PDF file);
TRFS-252 VCO Synthesizer (PDF file)

Dividers

TRFS-253 WCDMA Reference Divider (PDF file);
TRFS-254 WCDMA RF Divider (PDF file)

I/Q Modulators

TRFS-302 IQ Modulator Amp (PDF file);
New: TRFS10005 1GHz Vector Modulator (PDF file);
New: TRFS10006 2GHz Vector Modulator (PDF file)

Comparators/Drivers

TRFS-401 5GHz High Speed Driver/Comparator (PDF file);
TRFS-402 Diff Comparator (PDF file);
TRFS-403 CD Comparator (PDF file);
TRFS-404 Driver (PDF file)

Analog Baseband

TRFS-501 Analog Baseband Chip (PDF file)

PA Driver

TRFS-551 PA Driver Core Circuit (PDF file);
TRFS-552 Differential PA (PDF file)

SMPS

New: TRFS70001 1.5MHz buck regulator (PDF file)

Other

New: TRFS15008 Ultra Low Power 125kHz wakeup receiver (PDF file);
New: TRFS25007 Ultra Low Power FSK-ASK Transmitter (PDF file);
New: TRFS06001 IF level detector and AGC (PDF file)

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When an existing IC product becomes hard to procure or become obsolete, very few options are easily available in today’s merchant IC market. Fortunately, Tahoe RF’s extensive portfolio of silicon proven IP blocks provides a simple solution. These blocks can be modified or configured to meet the existing IC product performance and Tahoe RF will endeavor to meet the same footprint and function. Almost all prior generation RF and Analog ICs are ideal candidates for conversion by Tahoe RF. Furthermore, if necessary, additional or improved functionality can be easily incorporated during the redesign phase. With our pre-existing relationships with IC foundries, Tahoe RF will be able to support low volume requirements on a cost effective basis. Additional qualifications specifically targeting Military, Space or Automotive markets can also be supported.

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