S1M8821
Overview
20-TSSOP-BD44 The S1M8821/22/23 is a high performance dual frequency synthesizer with integrated prescalers designed for RF operation up to 1.2GHz/2.0GHz/2.5GHz and IF operation up to 520MHz. The S1M8821/22/23 contains dual-modulus prescalers.
- High operating frequency dual synthesizer - S1M8821 : 0.1 to 1.2GHz (RF)/ 45 to 520MHz (IF) - S1M8822 : 0.2 to 2.0GHz (RF)/ 45 to 520MHz (IF) - S1M8823 : 0.5 to 2.5GHz (RF)/ 45 to 520MHz (IF) * * *
- Very low current consumption(8821:3.5mA, 22:4.5mA, 23:5.5mA) Operating voltage range : 2.7 to 4.0V Selectable power saving mode(Icc=1uA typical @3V) Dual modulus prescaler : S1M8821/22 S1M8823 S1M8821/22/23 No dead-zone PFD Variable charge pump output current High speed lock mode (RF) 64/65 or 128/129 (RF) 32/33 or 64/65 (IF) 8/9 or 16/17 * * *
- Programmability via serial bus interface
