AK1541
EOL
20MHz ~ 600MHz Delta-Sigma Fractional-N Frequency Synthesizer
20MHz ~ 600MHz Delta-Sigma Fractional-N Frequency Synthesizer
EOL
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 |
EOL |
---|---|
Pb Free |
Yes |
Halogen Free |
No |
MSL |
MSL2 |
Packaging |
TAPE |
JEDEC Standard Packaging |
Compliant |
Minimum Order Quantity [pcs.] |
1000 |
Replacement P/N |
Block Diagram