AK1573/B/C

Frequency Synthesizer with Integrated VCO

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Description

Two-way Radio ICs
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.

Key Features

 Product  AK1573
 
 AK1573B
 
 AK1573C
 
 ● Oscillatory frequency range 
 1.48GHz to 2.24GHz  1.728GHz to 2.6GHz  2.1GHz to 3.0GHz
 ● Output frequency range
VCO output frequency(Divide by 1)
 1480 to 2240  1728 to 2600  2100 to 3000
Divide by 2  740 to 1120  864 to 1300  1050 to 1500
Divide by 4  370 to 560  432 to 650  525 to 750
Divide by 8  185 to 280  216 to 325  262.5 to 375
Divide by 16  92.5 to 140  108 to 162.5  131.25 to 187.5
Divide by 32  46.25 to 70  54 to 81.25  65.625 to 93.75
Divide by 64  30 to 35  30 to 40.625  32.8125 to 46.875
 ● Current consumption @ 0dBm output  43mA  44mA  46mA
 ● Normalized phase noise  -223dBc/Hz
 ● VCO phase noise  -86dBc/Hz@10kHz  -112dBc/Hz@100kHz
 ●   Programmable charge pump
 ● Function  Fast lock function
 Analog and digital lock detect function
 Mute function while PLL is unlocked
 ● Power supply  2.7V to 3.3V
 ● Operation temperature  -40 to 85°C
 ● Package  24-pin QFN (0.5mm pitch、4mm×4mm×0.75mm)

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Block Diagram

Block Diagram

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