Datasheet Summary
Si4133 Si4123/22/13/12
DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS MUNICATIONS
F E AT U R E S
- Dual-band RF synthesizers
- Low phase noise
- RF1: 900 MHz to 1.8 GHz
- Programmable powerdown modes
- RF2: 750 MHz to 1.5 GHz
- 1 µA standby current
- IF synthesizer
- 18 mA typical supply current
- IF: 62.5 to 1000 MHz
- 2.7 to 3.6 V operation
- Integrated VCOs, loop filters,
- Packages: 24-pin TSSOP, varactors, and resonators
28-lead QFN
- Minimal (2) number of external
- Lead-free and RoHS pliant ponents required
Applications
- Dual-band munications
- Digital cellular telephones GSM 850, E-GSM 900, DCS 1800,
PCS 1900
- Digital cordless phones
-...
