The IIS Chip Gallery
Noise (2004)
by
| Application | Audio |
| Technology | 250 |
| Manufacturer | UMC |
| Type | Semester Thesis |
| Package | LCC84 |
| Dimensions | 2500μm x 2500μm |
| Gates | 70 kGE |
| Voltage | 2.5 V |
| Clock | 45.5 MHz |
This chip is a digital noise generator intended for audio testing of telecommunication equipment, head sets and amplifiers.
The random number generation is based on Gold codes with a period of 2^25-1 samples. This corresponds to 85s at 192kHz. The random number generator produces 24-bit samples, which are then delivered to the amplitude statistics block, applying either gaussian, triangular or uniform distribution.