AK1573B

[AK1573/AK1573B/AK1573C] AK1573/AK1573B/AK1573C Frequency Synthesizer with Integrated VCO 1. General Description AK1573 is the Integer-N frequency synthesizer with integrated VCO (Voltage Controlled Oscillator). It is composed of programmable charge pump, reference divider, programmable divider, dual modulus prescaler (P / P + 1). With the feature of high-performance, low noise and small size, it can be used as a local signal source of a variety of frequency conversion. By combining with an external loop filter, AK1573 form a complete Phase Locked Loop. Access to the register is controlled by the serial interface of the 3-wire and Power supply voltage is 2.7V to 3.3V. 2. Features  Normalized Phase Noise -223dBc/Hz  Low Noise Integrated VCO -86dBc/Hz@10kHz -112dBc/Hz@100kHz  Operating Supply Voltage 2.7 to 3.3V  Low Current Comsumption@0dBm Output AK1573 43mA AK1573B 44mA AK1573C 46mA  Programmable to Divide by  Programmable Output Power  Fast Lock-up Function  Analog or Digital Lock Detect Function  Output Mute Function  Package  Operating Temperature Range 1, 2, 4, 8, 16, 32, 64 -12dBm to +6dBm 24pin QFN (0.5mm pitch 4x4mm) -40 ºC to 85 ºC  Frequency Coverage Options VCO Frequency [MHz] Divide by 1 Divide by 2 Divide by 4 Divide by 8 Divide by 16 Divide by 32 Divide by 64 AK1573 1480 to 2240 1480 to 2240 740 to 1120 370 to 560 185 to 280 92.5 to 140 46.25 to 70 30 to 35 AK1573B 1728 to 2600 1728 to 2600 864 to 1300 432 to 650 216 to 325 10...