Datasheet4U Logo Datasheet4U.com

AK1543 - 1300MHz Delta-Sigma Fractional-N Frequency Synthesizer

General Description

________________________________ ____________________________ 4 Absolute Maximum Ratings ________________________________ ___________________________ 6 Recommended Operating Range ________________________________ _______________________ 6 Electrical Characteristics ________________________________ _

Key Features

  •     Delta-Sigma Fractional-N frequency synthesizer providing shorter lockup time, lower phase noise and low spurious performance Operating frequency: On-chip charge pump for fast lockup Programmable charge pump current: In a normal operating scheme, the charge pump current can be set in 16 steps, in the range from 10.6uA to 168.9uA. In a fast lockup scheme, the charge pump current can be set in 8 steps, in the range from 0.84mA to 2.32mA.        Supply Voltage: Separate power supply f.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AK15-015C AXIAL LEADED TRANSIENT VOLTAGE SUPPRESSOR SALLTECH
AK15-015C 15KA Transient Voltage Suppressor HUAAN
AK15-020C AXIAL LEADED TRANSIENT VOLTAGE SUPPRESSOR SALLTECH
AK15-020C 15KA Transient Voltage Suppressor HUAAN
AK15-025C AXIAL LEADED TRANSIENT VOLTAGE SUPPRESSOR SALLTECH

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
AK1544 1300MHz Integer-N Frequency Synthesizer
AK1545 3.5GHz Low Noise 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.

View original datasheet text
[AK1543] AK1543 1300MHz Delta-Sigma Fractional-N Frequency Synthesizer 1. Overview The AK1543 is a Delta-Sigma Fractional-N PLL (Phase Locked Loop) frequency synthesizer with a frequency switching function, covering a wide range of frequencies from 400 to 1300MHz. This product consists of an 18-bit Delta-Sigma modulator, a low-noise phase frequency comparator, a highly accurate charge pump, a reference divider and a dual-module prescaler (P/P+1). An excellent PLL can be achieved by combining this synthesizer with the external loop filter and VCO (Voltage Controlled Oscillator). The access to the registers is controlled via a three-lines serial interface. The operating supply voltage is from 2.7V to 5.5V; and the charge pump and serial interface can be driven by individual supply voltages.