LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - Linear Technology - #1

Text version of the page

LTC5590 1 5590p Typical Application Features Description Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer The LTC®5590 is part of a family of dual-channel high dynamic range, high gain downconverting mixers covering the 600MHz to 4GHz RF frequency range. The LTC5590 is optimized for 600MHz to 1.7GHz RF applications. The LO frequency must fall within the 700MHz to 1.5GHz range for optimum performance. A typical application is a LTE or GSM receiver with a 700MHz to 915MHz RF input and high side LO. The LTC5590’s high conversion gain and high dynamic range enable the use of lossy IF filters in high selectivity receiver designs, while minimizing the total solution cost, board space and system-level variation. A low current mode is provided for additional power savings and each of the mixer channels has independent shutdown control. Wideband Receiver Applications n Conversion Gain: 8.7dB at 900MHz n IIP3: 26dBm at 900MHz n Noise Figure: 9.7dB at 900MHz n 15.6dB NF Under 5dBm Blocking n High Input P1dB; 14.1dBm at 5V n 53dB Channel-to-Channel Isolation n 1.25W Power Consumption at 3.3V n Low Current Mode for <800mW Consumption n Enable Pins for Each Channel n 50Ù Single-Ended RF and LO Inputs n LO Input Matched In All Modes n 0dBm LO Drive Level n Small Package and Solution Size n –40°C to 105°C Operation n 3G/4G Wireless Infrastructure Diversity Receivers (LTE, CDMA, GSM) n MIMO Infrastructure Receivers n High Dynamic Range Downmixer Applications L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. IF AMP ADC IF AMP RF 700MHz TO 915MHz LNA BIAS BIAS SYNTH VCCIF 3.3V or 5V 200mA VCC 3.3V 180mA 22pF 22pF 100pF 1ìF 22pF 1ìF 22pF 150nH 150nH 1nF 1nF 190MHz SAW 190MHz BPF IMAGE BPF RFA RFB ENA LO ENA (0V/3.3V) 10pF LO 1090MHz VCCA VCCB IFA+ IFA– IFB+ IFB– 5590 TA01a LO AMP LO AMP ENB ENB (0V/3.3V) RF 700MHz TO 915MHz LNA 100pF IMAGE BPF IF AMP IF AMP ADC 150nH 150nH 1nF 1nF 190MHz SAW 190MHz BPF VCCIF VCC High Dynamic Range Dual Downconverting Mixer Family PART NUMBER RF RANGE LO RANGE LTC5590 600MHz to 1.7GHz 700MHz to 1.5GHz LTC5591 1.3GHz to 2.3GHz 1.4GHz to 2.1GHz LTC5592 1.6GHz to 2.7GHz 1.7GHz to 2.5GHz LTC5593 2.3GHz to 4GHz 2.4GHz to 3.6GHz Wideband Conversion Gain NF and IIP3 vs IF Frequency (Mixer Only, Measured on Evaluation Board) IF FREQUENCY (MHz) 160 5 6 7 GAIN (dB), NF (dB) IIP3 (dBm) 9 10 11 13 12 170 190 5590 TA01b 8 180 200 210 220 21 23 25 27 22 24 26 20 19 TC = 25°C LO = 1090MHz RF = 900 ±30MHz TEST CIRCUIT IN FIGURE 1 GC IIP3 NF Electrical Specifications Subject to Change