AK1541

MP

20MHz ~ 600MHz Delta-Sigma Fractional-N Frequency Synthesizer

20MHz ~ 600MHz Delta-Sigma Fractional-N Frequency Synthesizer

MP

Description

The AK1541 is a 20MHz to 600MHz PLL (Phase Locked Loop) frequency synthesizer with a frequency switching function based on delta-sigma modulation Fractional-N.
The AK1541 consists of an 18-bit delta-sigma modulation circuit, a low-noise phase frequency comparator, an institutional charge pump, a reference divider, and a dual modulus prescaler (P / P + 1). By combining the synthesizer with an external loop filter and VCO (Voltage Controlled Oscillator), a complete PLL can be constructed.
Access to the AK1541 registers is controlled by a 3 wire serial interface. The power supply voltage operates from 2.7V to 5.5V, and the power supply system of the charge pump circuit and serial interface can be driven independently.

Key Features

  • 18-bit delta-sigma modulation circuit type PLL
  • Full control via 3 wire serial interface

Applications

  •                                 Digital control equipment, etc.
                                

Specifications

Part Number
AK1541
Description
Fractional-N
RF Frequency (MIN.) [MHz]
20
RF Frequency (TYP.) [MHz]

                                
RF Frequency (MAX.) [MHz]
600
REF Frequency (MIN.) [MHz]
5
REF Frequency (TYP.) [MHz]

                                
REF Frequency (MAX.) [MHz]
40
PFD Frequency [MHz]
3 or less
Normalized Phase Noise [dBc/Hz]
-193
Current Consumption [mA]
4.6
Other

                                
Operating Temperature [℃]

                                
Device Package
HWQFN
Number of Pins
24

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
No
MSL
MSL2
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram