It's a quartz clock oscillator chip.

It`s no quartz oscillator - these devices have usually 4 pins (VCC, GND, EN, OUT) and no such package.

These packages are used for SAW-Filters in the MHz or GHz-Range. The 3 pins on each long side are ground, the 2 pins on the other side are +in, -in and +out, -out.

Don`t know which frequency.

Regards Uwe

SAW (surface acoustic wave) filters are electromechanical devices commonly used in radio frequency applications. Electrical signals are converted to a mechanical wave in a piezoelectric crystal; this wave is delayed as it propagates across the crystal, before being converted back to an electrical signal by further electrodes. The delayed outputs are recombined to produce a direct analog implementation of a finite impulse response filter. This hybrid filtering technique is also found in an analog sampled filter. SAW filters are limited to frequencies up to 3GHz.

I think it's a SAW filter from my army radio class.

Ken Leigh

uweka, kudukdweller9, and Kenneth Leigh,

Thanks so much for the replies! I didn't think I would get a response, let alone good answers. Since you three concur on the ID of this device, I will proceed accordingly; find out as much as I can about them and use it if I can.

Again, Thanks!

Mike

Manufacturers often have contracts with vendors that require proprietary part numbers on the parts that goes into their products. The part number is often a specification document number.

GRRRRR