Model # LCFS1068 275 to 550 MHz Frequency Synthesizer Low Phase Noise in a Lower Cost Package Features • Low Phase Noise: -116 dBc/Hz (100 kHz offset) • Fast 80 μsec Settling Speed • External Reference Oscillator (Internal Ref. Option at No Extra Charge) • No User Programming Required • Integrated Microcontroller Look-up Table • Customized Parallel or Serial Programming Available • Additional Complementary Output Line is Available API Technologies’ Model LCFS1068 frequency synthesizer combines a monolithic integer-n microwave synthesizer, and a microcontroller to provide an economical frequency source solution. Complex serial register programming is not required. A built-in lookup table in the microcontroller allows for simplified frequency programming with a dual 8-bit binary frequency selection word. Either parallel or serial programming can be accommodated. Technical Specifications Parameter Maximum (No Damage) Ratings Typical Min/Max 275 to 550 MHz 275 to 550 MHz +13 dBm - 0 to +13 dBm 0 to +13 dBm 5 MHz - -108 dBc/Hz @ 1 kHz -113 dBc/Hz @ 10 kHz -116 dBc/Hz @ 100 kHz -145 dBc/Hz @ 1 MHz -150 dBc/Hz @ 10 MHz - 3.3 volt logic - Locking Speed 80 μsec - Spurious -40 dBc - Harmonics -20 dBc - 1.75:1 2.0:1 DC Supply Voltage +3.3 volts (+/- 2%) volts DC Supply Current* 200 mA* --- Frequency Range Output Power (Pin 15) External Reference Input Power Requirement (CW) Step Size SSB Phase Noise Digital Lock Indicator Output VSWR Storage Temperature -55°C to +125°C Operating Temperature -40°C to +85°C DC Voltage +5 volts Note: Typical values are measured at 25°C, but not guaranteed. Mechanical & Electrical Parameter Specification Specification Temperatures (Min/Max) -20°C to +70°C Housing Size 0.800” L x 0.800” W x 0.130” H Housing Drawing LC800 Package Type Surface Mount Note: SSB phase noise dependent on the input reference performance. Rev Date: 4/8/2015 © API Technologies Corp. Proprietary Information Page # 1 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Model # LCFS1068 Typical Performance Output Power (dBm) (dBm) (dBc/Hz @550 MHz) Phase Noise (dBc/Hz) 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz Offset from the Carrier Frequency (MHz) Notes 1. Specifications labeled “min.” or “max.” are guaranteed in a 50 Ohm system over the specified temperature range. 2. Output frequency and step size must be specified. 3. Other input voltages are available. Outline Drawing (LC800 Package) Rev Date: 4/8/2015 © API Technologies Corp. Proprietary Information Page # 2 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Model # LCFS1068 Outline Drawing (LC800 Package) Rev Date: 4/8/2015 © API Technologies Corp. Proprietary Information Page # 3 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Model # LCFS1068 Application Notes: Rev Date: 4/8/2015 © API Technologies Corp. Proprietary Information Page # 4 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Model # LCFS1068 Application Notes: Pinout Description Pin 1 and 52 Latch 1 and Latch 2 Normally tied together. A rising edge on these pins latches the low control byte. A falling edge latches the High control byte. Pins 2,3 and 40 No connection. Leave these pins open. (used for factory programming) Pin 4 DC ground Pins 5 and 6 +3.3 V dc power input Pin 8-11 DC ground Pin 12 RF ground Pin 13 RF ground Pin 14 RF ground Pin 15 RF2A output Pin 16 RF ground Pin 17 RF ground Pin 18 RF ground Pin 19 RF ground Pin 20 RF ground Pins 21-34 DC ground Pin 35 Lock detect output (High when locked/ low unlocked) internal 240 ohm series resistor can directly drive a lock LED to ground (5 mA source current). Pin 36 DC ground Pin 37 RF disable normally open. Ground this pin to blank the RF output. Pin 38 Reference oscillator in/out (one or the other depending on model option) output 1k impedance. Input 50 ohms (1 dBm nominal) Pin 39 Signal ground for Reference Pin 40 No connection. Leave this pins open. (used for factory programming) Pin 41 Data 0 LSB of the upper or lower 8 bit control word Pin 42 Data 1 Pin 43 Data 2 Pin 44 Data 3 Pin 45 Data 4 Pin 46-48 Data ground Pin 49 Data 5 Pin 50 Data 6 Pin 51 Data 7 MSB of the upper or lower 8 bit control word Rev Date: 4/8/2015 © API Technologies Corp. Proprietary Information Page # 5 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected]