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  ATE Fixture for
Wireless LAN Products

 

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By Larson Automation

The Challenge

Wireless products become popular today. A great number of companies are involved in the designing and producing WLAN gateways, access points, cards, chipsets, and related products. The emerging WLAN boom brings the market various advance technologies. However different companies have diverse product layouts. There is no a single standard for the solutions.  

The Solution

Develop a generic, complete testing system for different customers with the mininum cost.
System Description

 This ATE fixture internally contains the analog I/O, digital I/O, DC power supply, and complex relay control. It is designed connecting to RF signal generator, arbitrary waveform function generator, noise source, RF spectrum analyzer, oscilloscope, vector analyzer, power meter, and power supply. It provides access to DUT's RF/IF input and output ports, reference clock, power supply, internal register, internal calibration path and other DUT control circuitry.This fixture also provides the level shift circuit, which allows testing at different voltage levels.

Application Product

Generic ATE Fixture suitable for different WLAN products


Front Panel
 The front panel contains the interface to Device Under Test (DUT).
  • 8 RF SMA Connectors: RF (A), RF (B/G), IF, LO, RX I, RX Q, TX I, and TX Q.
  • 6 Digital 14-Pin Socket Connectors: Digital control and status signals.
  • 2 Digital 10-Pin Socket Connectors: High speed gigital lines (for PLL).
  • 3 Analog 14-Pin Socket Connectors: Analog control and measurement signals.
  • 2 10-Pin Socket Connectors: Two groups of DC power supply.
  • 2 LEDs: SYSTEM and DUT power up.
  • 2 Buttons: START and STOP the tests.

Rear Panel
 The front panel contains the interface to various testing instruments.
  • DC Power Supply (Banana Jack).
  • Noise Source (switch and signal, 2-Pin Socket and SMA).
  • Balance and Unbalance adapters (differential I&Q ports, 3-Pin and 4-Pin Sockets).
  • Primary Signal Generator (SMA).
  • Secondary Signal Generator (SMA).
  • Arbitary Function Generator (I&Q inputs, 2 BNC).
  • Oscilloscope (I&Q outputs, 2 BNC).
  • National Instrument DAQ (Digital I/O, 2 50-Pin connectors).
  • National Instrument DAQ (High speed digital I/O, 68-Pin connector).
  • National Instrument DAQ (Multifunctional I/O, 68-Pin connector).
  • Power cord (switch, 110~V).

Larson Automation, Inc.
Address: 960 Rincon Circle, San Jose, CA 95131
Tel: (408) 432-4800  Fax: (408) 432-4848  Email: info@larsonautomation.com