SKY73121-11数据手册Skyworks中文资料规格书

描述 Description

Skyworks SKY73121-11 Voltage-Controlled Oscillator(VCO)/Synthesizer is a fully integrated, high performance signalsource for high dynamic range transceivers. The device providesultra-fine frequency resolution, fast switching speed, and lowphase noise performance for 2G, 2.5G and 3G base stationtransceivers.
The SKY73121-11 VCO/Synthesizer is a key building block for highperformanceradio system designs that require low power and afine step size. Reference clock generators with an outputfrequency up to 52 MHz can be used with the SKY73121-11. Theinput clock frequency is divided down by programmable dividers(1 to 8) for the synthesizer. The phase detector can operate at amaximum speed of 26 MHz, which allows better phase noise dueto the lower division value.
The SKY73121-11 VCO/Synthesizer is provided in a compact, 38-pinMulti-Chip Module (MCM). The device package and pinout areshown in Figure 1. A functional block diagram is shown inFigure 2. Signal pin assignments and functional pin descriptionsare provided in Table 1.

特性 Features

·Wideband frequency operation: 1805 to 1890 MHz
·Process-tolerant compensation for VCO
·24-bit ΣΔ 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) Pb-free free (MSL3, 260 °C per JEDEC J-STD-020) SMT package