LA19-15-03 Fast Synthesizer
300 kHz to 8 GHz

About Product

• 45 μs Settling
• 10 Hz Resolution
• 30 dB Amplitude control
• +15 dBm Output
• PLL Lock alarm
• ALC Lock alarm
• -90 dBc/Hz Phase noise at 4 GHz
The LA19-15-03 is a fast, general purpose multi-decade tuning synthesizer module. It provides very fast tuning, typically settling to within 10 ppm in less than 45 μs for a full band step. It includes a programmable automatic level control capable of operation over a 30 dB range with a settling time in the region of 10 μs. The maximum, levelled output power is +15 dBm across the entire 300 kHz to 8 GHz band. The synthesizer module provides a 10 MHz reference output as well as being capable of locking to an external reference. The module consumes a total of 8 W so heat management requirements are modest.

LA19-15-03 Specification

LA19-15-03 Specification
Parameter 　 Units Min Typ Max
Frequency range 　 MHz 0.3 - 8192
Resolution (Freq > 4 GHz) 　 Hz 20 - -
Resolution (Freq < 4 GHz) 　 Hz 10 - 　
Maximum output power (either output) 　 dBm 15 17 -
Minimum output power (either output) 　 dBm - -20 -15
Frequency settling time (within 10ppm) 　 µs - 40 45
Phase noise at 10 kHz offset 　 　 　 　 　
2 GHz 　 dBc/Hz - -96 -94
4 GHz 　 dBc/Hz 　 -90 -88
8 GHz 　 dBc/Hz 　 -85 -83
Harmonics1 　 dBc - -26 -20
Sub-harmonics1 　 dBc - -46 -40
Spurious1 　 dBc - -60 -50
Internal reference stability 　 ppm - - 2.5
Internal reference accuracy2 　 ppm - - 1.5
Internal 10 MHz reference output 　 dBm -3 0 3
External 10 MHz reference input 　 dBm -6 0 6
External reference lock range 　 ppm -8 - 8
Internal 429 MHz reference output 　 dBm -3 0 3
Power supply requirements 　 　 　 　 　
+19 V 　 mA - 3 5
+9 V 　 mA - 650 700
+5 V 　 mA - 410 450
-5 V 　 mA - 45 50
Operating case temperature range 　 °C -10 　 50
Programming interface3 　 　 9 way D-sub, 3V logic 　 　
　 　 　 　 　 　
Notes: 1. Output set to +10 dBm 　 　 　 　
  2. Case temperature at 25°C　 　 　 　 　

 

 


Simplified block diagram of the LA19-15-03 synthesizer

Measured phase noise at 4 GHz