|
|
Information as of 2000-01-10
 Latest information online
SA9025; 900 MHz transmit modulator and 2.2 GHz fractional–N synthesizer
| Description |  |
|
This specification defines the requirements for a transmitter
modulator and fractional-N synthesizer IC to be used in cellular
telephones which employ the North American Dual Mode Cellular
System (IS-136).
The SA9025 BICMOS device integrates:
- Main channel synthesizer
- Auxiliary synthesizer
- Transmit offset synthesizer and oscillator
- I/Q modulator
- Power control
- Reference and clock buffers
- Control logic for programming and power down modes
| Features | |
- Low current from 3.75V supply
- Low phase noise
- Main loop with internal charge pump and fractional compensation
- 3-line serial interface bus
- Power down for the synthesizers
- Speedup mode for faster switching
| Applications | |
- Cellular phones
- Portable battery-powered radio equipment.
| Datasheet | |
| Products, packages, availability and ordering | |
Please note, devices listed in the "Products, packages, availability and ordering" table marked with "WIT" are discontinued. Devices marked with "DOD" will be in the near future.
Contact your nearest sales or distributor office for the latest information on product status and availability.
| Find similar products: | |
SA9025 links to the similar products page containing an overview of products that are similar in function or related to the part number(s) as listed on this page. The similar products page includes products from the same catalog tree(s) , relevant selection guides and products from the same functional category.
|
