SKY73121-11 1805–1890 MHz High Performance VCO/Synthesizer With Integrated Switch

SKYWORKS SKY73121-11 Voltage-Controlled Oscillator (VCO)/Synthesizer is a fully integrated, high performance signal source for high dynamic range transceivers. The device provides ultra-fine frequency resolution, fast switching speed, and low phase noise performance for 2G, 2.5G, and 3G base station transceivers. The SKY73121-11 VCO/Synthesizer is a key building block for high-performance radio system designs that require low power and a fine step size. Reference clock generators with an output frequency up to 52 MHz can be used with the SKY73121-11. A functional block diagram is shown in Figure 1. As indicated in this diagram, the reference frequency is divided down by 1, 2, 4, or 8 in the R1 divider, depending on the value of the reference divisor input (R1). Refer to the Reference Input Divider section (page 10) for more information.

技术特性

Frequency operation range: 1805 to 1890 MHz
Process-tolerant compensation for VCO
24-bit 􀀶􀀧 fractional-N synthesizer
Ultra-fine frequency resolution of 0.001 ppm
Flexible reference frequency selection
Three-wire serial interface up to 20 MHz clock frequency
Integrated PLL supply regulation for spur isolation
MCM (38-pin, 9 x 12 mm) SMT package (MSL3, 260 􀁱C per
JEDEC J-STD-020)

订购信息 Ordering Information

SKY73121-11

应用领域 APPLICATION

2G, 2.5G, and 3G base station transceivers:
GSM, EDGE, CDMA, WCDMA
General purpose RF systems

功能框图 Functional Block Diagram

应用技术支持与电子电路设计开发资源下载	版本信息	大小
SKY73121-11 数据资料DataSheet下载:pdf	Rev.V2	2 页