S1M8821 Datasheet | Samsung Semiconductor

INTERGER RF/IF DUAL PLL S1M8821/22/23 INTRODUCTION 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. The RF synthesizer adopts a 64/65 or a 128/129 prescaler(32/33 or 64/65 for the S1M8823) and the IF synthesizer adopts an 8/9 or a 16/17 prescaler. Using a proprietary digital phase-locked-loop technique, the S1M8821/22/23 has linear phase detector characteristic and can be .. used for very stable, low noise local oscillator signal. Supply voltage can range from 2.7V to 4.0V. The S1M8821/22/23 is now available in a 20-TSSOP/24-QFN package. 24-QFN-3.5×4.5 Features - 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(8821:3.5m A, 22:4.5m A, 23:5.5m A) Operating voltage range : 2.7 to 4.0V Selectable power saving mode(Icc=1u A 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 APPLICATIONS - - - - Cellular telephone systems : S1M8821 Portable wireless munications : S1M8822 (PCS/PCN, cordless) Wireless Local Area Networks (W-LANs) : S1M8823 Other wireless munication systems S1M8821/22/23 INTERGER RF/IF DUAL PLL ORDERING INFORMATION Device S1M8821X01-R0T0 S1M8822X01-R0T0 S1M8823X01-R0T0 S1M8821X01-R0T0 S1M8822X01-R0T0 S1M8823X01-R0T0 .. Package 20-TSSOP-BD44 Operating Temperature -40 to +85°C 24-QFN-3.5×4.5 -40 to +85°C INTERGER RF/IF DUAL PLL S1M8821/22/23 BLOCK DIAGRAM VDD1 1 .. RF LD RF Phase Detector fo LD Data Out...