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AK1545 - 3.5GHz Low Noise Integer-N Frequency Synthesizer

General Description

and Assignments _____________________________________________ 4 Absolute Maximum Ratings ____________________________________________________________ 6 Recommended Operating Range ________________________________________________________ 6 Electrical Characteristics __________________________________

Key Features

  • … … … … … … … Operating frequency : Programmable charge pump current : Fast lock mode : Supply Voltage : Separate Charge Pump Power Supply : Excellent Phase Noise : On-chip lock detection feature of PLL : Digit 500MHz to 3.5GHz 250μA and 1mA The charge pump current is switched by this function. 2.7 to 5.5 V (AVDD, DVDD pins) AVDD to 5.6V (CPVDD pin) -217dBc/Hz Selectable P hase F requency D etector (P FD) Output o r al filtered lock detect 16pin TSSOP -40°C to 85°C … … Package : Operating te.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
AK1541 20 to 600MHz Delta-Sigma Fractional-N Frequency Synthesizer
AK1542A 20 to 600MHz Integer-N Frequency Synthesizer
AK1543 1300MHz Delta-Sigma Fractional-N Frequency Synthesizer
AK1544 1300MHz Integer-N Frequency Synthesizer
AK1546 3GHz Low Noise Integer-N Frequency Synthesizer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK1545] AK1545 3.5GHz Low Noise Integer-N Frequency Synthesizer 1. Overview The AK1545 is an Integer-N PLL (Phase Locked Loop) frequency synthesizer, covering a wide range of frequency from 500MHz to 3.5GHz. Co nsisting of a h ighly accurate charg e pum p, a referenc e di vider, a pro grammable divider and a dual-modulus prescaler (P/P+1), this product provides high performance, very low Phase Noise. An ideal PL L can be ach ieved b y comb ining th e AK154 5 with the exter nal l oop filter a nd VCO (Voltage Controlled Oscillator). Access to the registers is controlled via a 3-wire serial interface. The operating supply voltage is from 2.7V to 5.5V, and the charge pump circuit and the serial interface can be driven by individual supply voltage. 2.