ltc5590 Linear Technology Corporation, ltc5590 Datasheet

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... The LTC 5590 is part of a family of dual-channel high dy- namic range, high gain downconverting mixers covering the 600MHz to 4.5GHz 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 ...

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... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC5590IUH#PBF LTC5590IUH#TRPBF Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: For more information on tape and reel specifications, go to: DC ELECTRICAL CHARACTERISTICS unless otherwise noted ...

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... RF = Low 700MHz to 1100MHz 190MHz, f CONDITIONS RF = 700MHz RF = 900MHz RF = 1100MHz RF = 900 ±30MHz 1090MHz 190 ±30MHz T = –40ºC to 105º 1950MHz 700MHz RF = 900MHz RF = 1100MHz RF = 700MHz RF = 900MHz RF = 1100MHz LTC5590 = 3.3V, ENA = ENB = High Low, T SEL C MIN TYP MAX 2.5 0.3 –20 30 123 159 116 146 239 305 = 3 ...

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... Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC5590 is guaranteed functional over the case operating temperature range of –40°C to 105°C. (θ = 7°C/W) JC ...

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... 3 SUPPLY VOLTAGE (V) CCIF LTC5590 High Side LO = –3dBm (–3dBm/tone for two-tone IIP3 tests, RF Channel Isolation vs RF Frequency 600 700 800 900 1000 1200 RF FREQUENCY (MHz) 5590 G02 1100MHz Conversion Gain, IIP3 ...

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... LTC5590 TYPICAL AC PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V, ENA = ENB = High CCIF Δf = 2MHz 190MHz, unless otherwise noted. Test circuit shown in Figure 1. 2-Tone IF Output Power, IM3 and IM5 vs RF Input Power OUT –10 RF1 = 899MHz –20 RF2 = 901MHz – 1090MHz –40 – ...

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... RF = 900MHz 3. 3 SUPPLY VOLTAGE (V) CCIF LTC5590 Low Power Mode, High Side LO = –3dBm (–3dBm/tone for two-tone IIP3 tests, RF 2-Tone IF Output Power, IM3 and IM5 vs RF Input Power 25°C OUT 85°C 0 –10 RF1 = 899MHz –20 RF2 = 901MHz LO = 1090MHz – ...

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... LTC5590 TYPICAL AC PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V, ENA = ENB = High CCIF Δf = 2MHz 190MHz, unless otherwise noted. Test circuit shown in Figure 1. Conversion Gain and IIP3 vs RF Frequency IIP3 24 14 –40° 25°C 85° 105° ...

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... Voltage (IF Amplifier) 170 V = 3.3V CC 105°C 150 85°C 130 25°C 110 –40° 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 V SUPPLY VOLTAGE (V) CCIF 5590 G41 LTC5590 Total Supply Current vs Temperature ( CCIF 480 460 440 V = 3.3V CCIF 420 (DUAL SUPPLY) 400 380 3.3V CC CCIF 360 ...

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... LTC5590 PIN FUNCTIONS RFA, RFB (Pins 1, 6): Single-Ended RF Inputs for Chan- nels A and B. These pins are internally connected to the primary sides of the RF input transformers, which have low DC resistance to ground. Series DC-blocking capaci- tors should be used to avoid damage to the integrated transformer when DC voltage is present at the RF inputs. ...

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... IFA IFA IFBA GND IFGNDA IF BIAS AMP RFA LO CTA AMP GND GND CTB LO AMP RFB IF BIAS AMP + – GND IFGNDB IFB IFB IFBB LTC5590 V CCA I SEL 18 ENA GND 15 ENB 14 GND 13 V CCB 5590 BD 5590f 11 ...

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... IFA 50Ω C7A L1A L2A C5A C3A – IFA IFBA V CCA ISEL 18 I SEL (0V/3.3V) ENA ENA 17 (0V/3.3V LTC5590 15 GND ENB ENB 14 (0V/3.3V) GND 13 + – IFB IFBB V CCB C3B C5B L2B L1B C7B IFB 50Ω 4:1 T1B REF DES C1A, C1B ...

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... APPLICATIONS INFORMATION Introduction The LTC5590 consists of two identical mixer channels driven by a common LO input signal. Each high linearity mixer consists of a passive double-balanced mixer core, IF buffer amplifier, LO buffer amplifier and bias/enable circuits. See the Pin Functions and Block Diagram sections for a description of each pin. Each of the mixers can be ...

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... The secondary of the transformer drives a pair of high speed limiting differential amplifiers for channels A and B. The LTC5590’s LO amplifiers are optimized for the 700MHz to 1.5GHz LO frequency range; however, LO frequencies outside this frequency range may be used with degraded performance. The LO port is always 50Ω matched when V S11 even when one or both of the channels is disabled ...

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... IF frequency. The value of L1A, L2A can be V CCA estimated as follows: 4mA L1A = L2A = BIAS 5590 F07 where C is the internal IF capacitance (listed in Table 3). IF LTC5590 – IFA IF A LTC5590 0.9nH 0.9nH 5590 F08 Figure 8. IF Output Small-Signal Model • 2 • 5590f 15 ...

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... The final impedance transformation to 50Ω is realized by transformer T1A. The measured return loss is shown in Figure 11 for different values of inductance (C9A = OpF). The case with 82nH inductors and R2A = 1k is also shown. The LTC5590 demo board (see Figure 2) 16 3 ...

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... BIAS A V CCB BIAS B 5590 F13 Figure 12. I Interface Schematic SEL = V = 3.3V CC CCIF I G IIP3 P1dB TOTAL C (mA) (dB) (dBm) (dBm) 379 8.7 26.0 10.7 239 7.7 21.5 10 more than 0.3V. If this CC LTC5590 V CCA 19 ESD CLAMP ENA 500Ω 17 5590 F13 Figure 13. ENA Interface Schematic NF (dB) 9.7 9.9 5590f 17 ...

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... LTC5590 APPLICATIONS INFORMATION should occur, the supply current could be sourced through the ESD diode, potentially damaging the IC. The Enable pins must be pulled high or low. If left float- ing, the on/off state of the IC will be indeterminate three-state condition can exist at the enable pins, then a pull-up or pull-down resistor must be used ...

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... UH Package 24-Lead Plastic QFN (5mm × 5mm) (Reference LTC DWG # 05-08-1747 Rev A) 0.75 0.05 PACKAGE OUTLINE 0.30 0.05 0.65 BSC R = 0.05 TYP 0.75 0.05 0.00 – 0.05 3.25 REF 0.200 REF LTC5590 PIN 1 NOTCH R = 0.30 TYP BOTTOM VIEW—EXPOSED PAD OR 0.35 45 CHAMFER R = 0.150 TYP 23 24 0.55 0. 3.20 0.10 3.20 0.10 (UH24) QFN 0708 REV A 0 ...

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... TO CHANNEL 100pF + IFA GND IFGNDA RFA 1 RFA 50Ω CTA 2 LTC5590 CHANNEL A 3 GND 4 GND CHANNEL B NOT SHOWN RELATED PARTS PART NUMBER DESCRIPTION Infrastructure LTC5569 300MHz to 4GHz, Dual Active Downconverting Mixer LT5527 400MHz to 3.7GHz, 5V Downconverting Mixer LT5557 400MHz to 3.8GHz, 3.3V Downconverting Mixer ...