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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer

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

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

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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - 3

LTC5590 3 5590p D C Electrical Characteristics VCC = 3.3V, VCCIF = 3.3V, ENA = ENB = High, ISEL = Low, TC = 25°C, unless otherwise noted. Test circuit shown in Figure 1. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Low Current Mode Logic Input (ISEL) High = Low Power, Low = Normal Power Mode ISEL Input High Voltage 2.5 V ISEL Input Low Voltage 0.3 V ISEL Input Current –0.3V to VCC + 0.3V –20 30 ìA Low Current Mode Current Consumption (ISEL = High) Mixer Supply Current (Pins 12, 19) 123 TBD mA IF Amplifier Supply Current (Pins 9, 10, 21, 22) 116 TBD mA Total Supply Current (Pins 9, 10,...

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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - 4

LTC5590 4 5590p PARAMETER CONDITIONS MIN TYP MAX UNITS 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 RF = 900MHz, VCCIF = 3.3V RF = 900MHz, VCCIF = 5V 10.4 10.9 dBm dBm 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....

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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - 6

LTC5590 6 5590p SSB Noise Figure vs RF Blocker Power LO Leakage vs LO Frequency RF Isolation vs RF Frequency TBD TBD TBD 2-Tone IF Output Power, IM3 and IM5 vs RF Input Power Single-Tone IF Output Power, 2 × 2 and 3 × 3 Spurs vs RF Input Power 2 × 2 and 3 × 3 Spur Suppression vs LO Input Power Typical AC Performance Characteristics High Side LO VCC = 3.3V, VCCIF = 3.3V, ENA = ENB = High, ISEL = Low, TC = 25°C, PLO = 0dBm, PRF = –3dBm (–3dBm/tone for two-tone IIP3 tests, Äf = 2MHz), IF = 190MHz, unless otherwise noted. Test circuit shown in Figure 1. RF INPUT POWER (dBm/TONE) –12 –80 –70 –50...

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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - 9

LTC5590 9 5590p Typical DC Performance Characteristics VCC Supply Current vs Supply Voltage (Mixer and LO Amplifier) VCCIF Supply Current vs Supply Voltage (IF Amplifier) Total Supply Current vs Temperature (VCC + VCCIF) ENA = ENB = High, test circuit shown in Figure 1. VCC Supply Current vs Supply Voltage (Mixer and LO Amplifier) VCCIF Supply Current vs Supply Voltage (IF Amplifier) Total Supply Current vs Temperature (VCC + VCCIF) ISEL = High ISEL = Low VCC SUPPLY VOLTAGE (V) 3 SUPPLY CURRENT (mA) 3.1 5590 G37 180 182 184 188 190 192 194 186 196 3.2 3.3 3.4 3.5 3.6 105°C 85°C 25°C –40°C...

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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - 10

LTC5590 10 5590p Pin Functions RFA, RFB (Pins 1, 6): Single-Ended RF Inputs for Channels 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 capacitors should be used to avoid damage to the integrated transformer when DC voltage is present at the RF inputs. The RF inputs are impedance matched when the LO input is driven with a 0±6dBm source between 700MHz and 1.5GHz and the channels are enabled. CTA, CTB (Pins 2, 5): RF Transformer Secondary Center- Tap on Channels A and B. These pins may...

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LTC5590 - Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer - 11

LTC5590 11 5590p Block Diagram 5590 BD BIAS BIAS GND ENA ISEL LO IFBB VCCB IFBA VCCA IFB+ IFB– IFA+ IFA– IFGNDB IFGNDA GND RFB LO AMP LO AMP ENB GND PASS MIX IF AMP 9 10 11 12 14 13 GND 15 16 17 18 6 7 8 CTB 5 4 GND 3 GND CTA 2 RFA 1 IF AMP PASS MIX 24 23 22 21 20 19

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