HIGH-PERFORMANCE WIDE BANDWIDTH AND WIDE DEVIATION FM DEMODULATOR MODULE IFDMLIM SERIES The IFDMLIM series FM demodulators have excellent IF-tobaseband characteristics in their respective operating bands. These demodulators receive FM modulated carriers at different center frequencies and recover the baseband information with high fidelity. The application of these demodulators are in satellite communications and test equipment. FEATURES * Excellent IF-to-baseband characteristics * Excellent baseband frequency response * Wide deviations MODEL NUMBER * PEAK-TO-PEAK DEVIATION (MHz) LINEARITY (%) LINEAR GROUP DELAY (ns/MHz) PARABOLIC GROUP DELAY (ns/MHz2 ) TOTAL GROUP DELAY (ns) - 4 5 5 - 4 4.5 5 0.01 0.04 0.007 0.006 0.006 0.006 0.006 - 0.04 0.006 0.006 0.006 0.006 - 0.04 0.006 0.006 0.006 0.006 0.006 - 21.4 MHz FM DEMODULATORS IFDMLIM-21.4-6-1.5-I/O IFDMLIM-21.4-8-2.0-I/O IFDMLIM-21.4-10-2.5-I/O 6 8 10 1.5 2 2.5 - 30 MHz FM DEMODULATORS IFDMLIM-30-8-1.2-I/O IFDMLIM-30-10-1.5-I/O IFDMLIM-30-15-2.0-I/O 8 10 15 1.2 1.5 2 - 70 MHz FM DEMODULATORS IFDMLIM-70-10-0.5-I/O IFDMLIM-70-20-0.75-I/O IFDMLIM-70-30-1.5-I/O IFDMLIM-70-30-1.0-I/O IFDMLIM-70-36-1.25-I/O IFDMLIM-70-36-1.0-I/O IFDMLIM-70-40-1.25-I/O 10 20 30 30 36 36 40 0.5 0.75 1.5 1 1.25 1 1.25 0.04 0.05 0.03 0.025 0.03 0.03 0.04 140 MHz FM DEMODULATORS IFDMLIM-140-20-0.75-I/O IFDMLIM-140-30-0.75-I/O IFDMLIM-140-36-1.25-I/O IFDMLIM-140-40-1.25-I/O IFDMLIM-140-50-1.5-I/O 20 30 36 40 50 0.75 0.75 1.25 1.25 1.5 0.05 0.025 0.03 0.04 0.04 160 MHz FM DEMODULATORS IFDMLIM-160-20-0.75-I/O IFDMLIM-160-30-0.75-I/O IFDMLIM-160-36-1.25-I/O IFDMLIM-160-40-1.25-I/O IFDMLIM-160-50-1.5-I/O IFDMLIM-160-60-1.8-I/O 20 30 36 40 50 60 0.75 0.75 1.25 1.25 1.5 1.8 0.05 0.025 0.03 0.04 0.04 0.04 * I = Input impedance; O = Output impedance. For impedance of 75 ohms, I or O = 7; for impedance of 50 ohms, I or O = 5. 13 COMMON ELECTRICAL SPECIFICATIONS Input impedance .................................................. Input return loss .................................................. Input level ............................................................ Baseband output frequency response................. 50 or 75 ohms 20 dB minimum -5 to +8 dBm (see Options) 10 Hz to 6 MHz, 0.25 dB maximum 10 Hz to 10 MHz, 0.5 dB maximum Demodulation sensitivity ...................................... 40 mV/MHz nominal (see Options) Output impedance ............................................... 50 or 75 ohms Output return loss ................................................ 26 dBm minimum to 10 MHz PRIMARY POWER REQUIREMENTS Current/voltage .................................................... 250 mA @ +15 volts 60 mA @ -15 volts MECHANICAL SPECIFICATIONS PHYSICAL Dimensions .......................................................... 6.6" x 2.9" x .75" CONNECTORS Input/output.......................................................... SMA female DC power, housing ground .................................. 9-pin male, D type OPTIONS IFDM1 IFDM2 IFDM3 IFDM4 Demodulation sensitivity (customer to specify). IF input level (customer to specify). IF baseband level adjust (customer to specify). IF input center frequency (customer to specify). 14