YO4HFU
FRACTIONAL PLL with SA7025/TRF2050

 

1GHz PLL with Philips SA7025
Frequency input up to 1GHz
Suitable for 144/432/1296MHz transverters



VCO 404MHz specifications

Kv = 0,5MHz/V
Output Level = 11mW/50ohm (+10,5dBm)
Auxiliary RF Output for PLL = -12dBm
808MHz Harmonic <45dBc
Output Switch Isolation >42dB
Phase Noise - no measure capability for low values

PC Software for TRF2050 (SA7025)
Soft Download TRF2050
Interface LPT - PLL
Doc. Evaluation Board
SA7025 Soft - Print Screen

PCB from UHF Radio
350-450MHz VCO with ceramic resonator
SA7025, Loop Filter

Datasheet
TRF2050
SA7025
Fractional/Integer-N PLL Basics



Code Source PIC16F628A
- Universal Soft for LMX/SA PLL Chips. Thanks Vasea!
How to Modify the Source Code
PLL SA7025 Schematic
VCO 404MHz Schematic
PCB PLL SA7025
PCB VCO 404MHz

 

 

 

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