LTC5586 6GHz High Linearity I/Q Demodulator with Wideband IF Amplifier FEATURES DESCRIPTION n 300MHz to 6GHz Operating Frequency The LTC 5586 is a direct conversion quadrature demod- n Wide IF Bandwidth: DC to 1GHz (1dB Bandwidth) ulator optimized for high linearity zero-IF and low IF n High Mixer IIP3: 30dBm at 1.9GHz receiver applications in the 300MHz to 6GHz frequency n High Total OIP3: 40dBm at 1.9GHz range. The very wide IF bandwidth of more than 1GHz n High Total OIP2: 74dBm at 1.9GHz makes the LTC5586 particularly suited for demodulation n User Adjustable OIP2 to 80dBm of very wideband signals, especially in digital predistor- n User Adjustable Image Rejection to 60dB tion (DPD) applications. The outstanding dynamic range n User Adjustable DC Offset Null of the LTC5586 makes the device suitable for demanding n Serial Interface infrastructure direct conversion applications. Proprietary n Power Conversion Gain: 7.7dB at 1.9GHz technology inside the LTC5586 provides the capability n 31dB RF Attenuator with 1dB Step Size to optimize OIP2 to 80dBm, and achieve image rejection n RF Switch with 40dB Isolation at 1.9GHz better than 60dB. The DC offset control function allows n Single-Ended RF Inputs with On-Chip Transformer nulling of the DC offset at the A/D converter input, thereby n IF Amplifier Gain Adjustable in 8 Steps optimizing the dynamic range of true zero-IF receivers n Operating Temperature Range (T ): 40C to 105C that use DC coupled IF signal paths. The wideband RF C n 32-Lead 5mm 5mm QFN Package and LO input ports make it possible to cover all the major wireless infrastructure frequency bands using a single device. The IF outputs of the LTC5586 are designed to APPLICATIONS interface directly with most common A/D converter input n 4G and 5G Base Station Receivers interfaces. The high OIP3 and high conversion gain of the n Wideband DPD Receivers device eliminate the need for additional amplifiers in the n Point-To-Point Broadband Radios IF signal path. n High Linearity Direct Conversion I/Q Receivers All registered trademarks and trademarks are the property of their respective owners. n Image Rejection Receivers TYPICAL APPLICATION Gain, OIP3 and OIP2 vs Temperature (T ) C (Unoptimized) Dual Band Transmitter with DPD Receiver 90 OIP2 80 RF 1 PA 1 70 60 50 LTC5586 IFIP OIP3 ADC 40 RFA IFIM 30 8 STEPS RFB 20 0 GAIN f LO 10 90 RFSW 0 8 STEPS ATTEN IFQP -10 0dB 31dB 0 1 2 3 4 5 6 SPI ADC RF FREQUENCY (GHz) IFQM 5586 G01 I, 105C Q, 105C I, 85C Q, 85C RF I, 25C Q, 25C 2 PA 2 I, 40C Q, 40C 5586 TA01 Rev B 1 Document Feedback For more information www.analog.com GAIN, OIP3, OIP2 (dB,dBm,dBm)LTC5586 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW VCC, VCCN Supply Voltage (Note 21) ....... 0.3V to 5.5V OVDD, SDO Voltage (Note 18) ................... 0.3V to 3.8V 32 31 30 29 28 27 26 25 RFA, RFB DC Voltage ...................................1.5V to 2.0V GND 1 24 OVDD LOP, LOM DC Voltage ..................................2.1V to 2.8V RFA 2 23 SCK IFIM, IFIP, IFQP, IFQM DC Voltage ............. 0.3V to 3.5V TEMP 3 SDI 22 AIM, AIP, AQM, AQP RFSW 4 21 SDO 33 GND DC Voltage ........................... V 1.7V to V 1.2V VCCN 5 20 LOM CC CC VCM 6 19 LOP MIM, MIP, MQM, MQP RFB 7 18 VCC DC Voltage ........................... V 1.7V to V 1.2V CC CC GND 8 17 CSB Voltage on Any Other Pin .......................... 0.3V to 5.5V 9 10 11 12 13 14 15 16 LOP, LOM, RFA, RFB Input Power (Note 17) ......+20dBm Output Short Circuit Duration (Notes 14, 17) ... Indefinite UH PACKAGE Maximum Junction Temperature (T ) ............. 150C JMAX 32-LEAD (5mm 5mm) PLASTIC QFN Case Operating Temperature Range (T ) 40C to 105C C T = 150C, = 7.7C/W JMAX JC EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB Storage Temperature Range .................. 65C to 150C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC5586IUH PBF LTC5586IUH TRPBF 5586 32-Lead (5mm x 5mm) Plastic QFN 40C to 105C Consult ADI Marketing for parts specified with wider operating temperature ranges. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with TRMPBF suffix. Rev B 2 For more information www.analog.com MQP MIP MQM MIM DNC DNC AQM AIM AQP AIP DNC DNC IFQM IFIM IFQP IFIP