ADL5355

1200 MHz to 2500 MHz Balanced Mixer, LO Buffer, IF Amplifier, and RF Balun ADL5355 FEATURES RF frequency range of 1200 MHz to 2500 MHz IF frequency range of 30 MHz to 450 MHz Power conversion gain: 8.4 dB SSB noise figure of 9.2 dB SSB noise figure with 5 dBm blocker of 20 dB Input IP3 of 27 dBm Input P1dB of 10.4 dBm Typical LO drive of 0 dBm Single-ended, 50 Ω RF and LO input ports High isolation SPDT LO input switch Single-supply operation: 3.3 V to 5 V Exposed paddle 5 mm × 5 mm, 20-lead LFCSP 1500 V HBM/500 V FICDM ESD performance FUNCTIONAL BLOCK DIAGRAM IFGM 20 IFOP 19 IFON 18 PWDN 17 LEXT 16 ADL5355 VPIF 1 15 LOI2 RFIN 2 14 VPSW RFCT 3 BIAS GENERATOR COMM 4 13 VGS1 12 VGS0 APPLICATIONS Cellular base station receivers Transmit observation receivers Radio link downconverters COMM 5 6 7 8 9 10 11 LOI1 NC = NO CONNECT Figure 1. GENERAL DESCRIPTION The ADL5355 uses a highly linear, doubly balanced passive mixer core along with integrated RF and LO balancing circuitry to allow for single-ended operation. The ADL5355 incorporates an RF balun, allowing for optimal performance over a 1200 MHz to 2500 MHz RF input frequency range using low-side LO injection for RF frequencies from 1700 MHz to 2500 MHz and high-side LO injection for RF frequencies from 1200 MHz to 1700 MHz. The balanced passive mixer arrangement provides good LO-to-RF leakage, typically better than −39 dBm, and excellent intermodulation performance. The balanced mixer core also provides extremely high input linearity, allowing the device to be used in demanding cellular applications where inband blocking signals may otherwise result in the degradation of dynamic performance. A high linearity IF buffer amplifier follows the passive mixer core to yield a typical power conversion gain of 8.4 dB and can be used with a wide range of output impedances. The ADL5355 provides two switched LO paths that can be used in TDD applications where it is desirable to rapidly switch between two local oscillators. LO current can be externally set using a resistor to minimize dc current commensurate with the desired level of performance. For low voltage applications, the ADL5355 is capable of operation at voltages down to 3.3 V with substantially reduced current. Under low voltage operation, an additional logic pin is provided to power down (20 dB over a limited bandwidth 1200 Differential impedance, f = 200 MHz Externally generated 30 3.3 −6 230||0.75 5.0 0 15 50 450 5.5 +10 Min Typ 20 50 2500 Max Unit dB Ω MHz Ω||pF MHz V dBm dB Ω MHz V V V ns ns μA μA 1230 1.0 2470 0.4 1.4 Device enabled, IF output to 90% of its final level Device disabled, supply current < 5 mA Device enabled Device disabled 160 220 0.0 70 1 2 Apply the supply voltage from the external circuit through the choke inductors. PWDN function is intended for use with VS ≤ 3.6 V only. Rev. 0 | Page 3 of 24 ADL5355 5 V PERFORMANCE VS = 5 V, IS = 190 mA, TA = 25°C, fRF = 1950 MHz, fLO = 1750 MHz, LO power = 0 dBm, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted. Table 2. Parameter DYNAMIC PERFORMANCE Power Conversion Gain Voltage Conversion Gain SSB Noise Figure SSB Noise Figure Under Blocking Input Third-Order Intercept (IIP3) Input Second-Order Intercept (IIP2) Input 1 dB Compression Point (IP1dB) LO-to-IF Leakage LO-to-RF Leakage RF-to-IF Isolation IF/2 Spurious IF/3 Spurious POWER SUPPLY Positive Supply Voltage Quiescent Current Total Quiescent Current Conditions Including 4:1 IF port transformer and PCB loss ZSOURCE = 50 Ω, differential ZLOAD = 200 Ω differential 5 dBm blocker present ±10 MHz from wanted RF input, LO source filtered fRF1 = 1949.5 MHz, fRF2 = 1950.5 MHz, fLO = 1750 MHz, each RF tone at −10 dBm fRF1 = 1950 MHz, fRF2 = 1900 MHz, fLO = 1750 MHz, each RF tone at −10 dBm Unfiltered IF output Min 7 Typ 8.4 14.7 9.2 20 27 50 10.4 −12.6 −39 −33 −69 −73 4.5 LO supply, resistor programmable IF supply, resistor programmable VS = 5 V 5 100 90 190 5.5 Max 9.5 Unit dB dB dB dB dBm dBm dBm dBm dBm dBc dBc dBc V mA mA mA 22 −10 dBm input power −10 dBm input power 3.3 V PERFORMANCE VS = 3.3 V, IS = 125 mA, TA = 25°C, fRF = 1950 MHz, fLO = 1750 MHz, LO power = 0 dBm, R9 = 226 Ω, R14 = 604 Ω, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted. Table 3. Parameter DYNAMIC PERFORMANCE Power Conversion Gain Voltage Conversion Gain SSB Noise Figure Input Third-Order Intercept (IIP3) Input Second-Order Intercept (IIP2) Input 1 dB Compression Point (IP1dB) POWER INTERFACE Supply Voltage Quiescent Current Power-Down Current Conditions Including 4:1 IF port transformer and PCB loss ZSOURCE = 50 Ω, differential ZLOAD = 200 Ω differential fRF1 = 1949.5 MHz, fRF2 = 1950.5 MHz, fLO = 1750 MHz, each RF tone at −10 dBm fRF1 = 1950 MHz, fRF2 = 1900 MHz, fLO = 1750 MHz, each RF tone at −10 dBm Min Typ 9 15.3 8.75 22 52 7 3.0 Resistor programmable Device disabled 3.3 125 150 3.6 Max Unit dB dB dB dBm dBm dBm V mA μA Rev. 0 | Page 4 of 24 ADL5355 SPUR TABLES All spur tables are (N × fRF) − (M × fLO) and were measured using the standard evaluation board. Mixer spurious products are measured in dBc from the IF output power level. Data was only measured for frequencies less than 6 GHz. Typical noise floor of the measurement system = −100 dBm. 5 V Performance VS = 5 V, IS = 190 mA, TA = 25°C, fRF = 1900 MHz, fLO = 1697 MHz, LO power = 0 dBm, VGS0 = VGS1 = 0 V, and ZO = 50 Ω, unless otherwise noted. Table 4. M 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 −42.3 −66.7