DEMO MANUAL DC1710A-A LTC5590 Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer Description Demonstration circuit 1710A-A is a dual 600MHz to 1.7GHz The LTC5590s high conversion gain and high dynamic high dynamic range downconverting mixer featuring the range enable the use of lossy IF filters in high-selective LTC 5590. The LTC5590 is part of a family of dual-channel receiver designs, while minimizing the total solution cost, high dynamic range, high gain downconverting mixers board space and system-level variation. covering the 600MHz to 4.5GHz frequency range. The High Dynamic Range Dual Downconverting Mixer Family demo circuit 1710A-A and the LTC5590 are optimized for DEMO IC PART RF RANGE LO RANGE 600MHz to 1.7GHz RF applications. The LO frequency DC1710A-A LTC5590 600MHz to 1.7GHz 700MHz to 1.5GHz must fall within the 700MHz to 1.5GHz range for optimum DC1710A-A LTC5590 1.3GHz to 2.3GHz 1.4GHz to 2.1GHz performance. A typical application is a LTE or GSM receiver DC1710A-C LTC5592 1.6GHz to 2.7GHz 1.7GHz to 2.5GHz with a 700MHz to 915MHz RF input and high side LO. DC1710A-D LTC5593 2.3GHz to 4.5GHz 2.1GHz to 4.2GHz The LTC5590 is designed for 3.3V operation, however the Design files for this circuit board are available at IF amplifiers can be powered by 5V for the highest P1dB. A DEMO MANUAL DC1710A-A p erformance sT = 25C, VCC = VCCIF = 3.3V, ENA = ENB = High, ISEL = Low, P = 0dBm, C LO P = 3dBm (f = 2MHz for two-tone IIP3 tests), unless otherwise noted. (Note 1) RF PARAMETER CONDITIONS VALUE UNITS LO Input Frequency Range 700 to 1500 MHz LO Input Return Loss Z = 50, f = 700MHz to 1500MHz >12 dB 0 LO LO Input Power Range f = 700MHz to 1500MHz 4 to 6 dBm LO RF Input Frequency Range Low Side LO 1100 to 1700 MHz High Side LO 600 to 1100 MHz RF Input Return Loss Z = 50, f = 700MHz to 1400MHz >12 dB 0 RF IF Output Frequency Can be re-matched for other frequencies 190 MHz IF Output Return Loss Z = 50 >12 dB 0 LO to RF Leakage f = 700MHz to 1500MHz < 36 dBm LO LO to IF Leakage f = 700MHz to 1500MHz < 26 dBm LO RF to LO Isolation f = 600MHz to 1700MHz >56 dB RF RF to IF Isolation f = 600MHz to 1700MHz >17 dB RF Channel-to-Channel Isolation f = 600MHz to 1200MHz >50 dB RF f = 1200MHz to 1700MHz >45 dB RF High Side LO Downmixer Application: ISEL = Low, RF = 700MHz to 1100MHz, IF = 190MHz, f = f + f LO RF IF Conversion Gain RF = 700MHz 8.6 dB RF = 900MHz 8.7 dB RF = 1100MHz 8.5 dB Input 3rd Order Intercept RF = 700MHz 25.3 dBm RF = 900MHz 26 dBm RF = 1100MHz 24.8 dBm SSB Noise Figure RF = 700MHz 9.3 dB RF = 900MHz 9.7 dB RF = 1100MHz 9.9 dB SSB Noise Figure Under Blocking f = 900MHz, f = 1090MHz, f = 800MHz, RF LO BLOCK P = 5dBm 15.6 dB BLOCK P = 10dBm 21.2 dB BLOCK 2LO 2RF Output Spurious Product f = 995MHz at 10dBm, f = 1090MHz, 77 dBc RF LO (f = f f /2) f = 190MHz RF LO IF IF 3LO 3RF Output Spurious Product f = 1026.67MHz at 10dBm, f = 1090MHz, 77 dBc RF LO (f = f f /3) f = 190MHz RF LO IF IF Input 1dB Compression f = 900MHz, VCCIF = 3.3V 10.7 dBm RF f = 900MHz, VCCIF = 5V 14.1 dBm RF Low Power Mode, High Side LO Downmixer Application: ISEL = High, RF = 700MHz to 1100MHz, IF = 190MHz, f = f + f LO RF IF Conversion Gain RF = 900MHz 7.7 dB Input 3rd Order Intercept RF = 900MHz 21.5 dBm SSB Noise Figure RF = 900MHz 9.9 dB Input 1dB Compression f = 900MHz, VCCIF = 3.3V 10.4 dBm RF f = 900MHz, VCCIF = 5V 10.9 dBm RF dc1710aaf 2 ummary