Texas Instruments TRF1500 Low-Band Cascaded Test Guide, LOW-Band Cascaded Power Conversion Gain

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SWRA004A

Low-Band Cascaded Test Guide

This section involves measuring the cascaded performance of the Low Band LNA, Low Band MIXER and Low Band IF Amp. An external SAW filter is utilized to complete the RF receiver section. All tests apply for an IF output terminated into a 1 kΩ differential load. To match the differential IF output to the 50 Ω test equipment a transformer balun is used. All unused ports are terminated into 50 Ω.

Table 3. LB LNA, LB Mixer, SAW Filter, and LB IF Amp Parameters

PARAMETERS	Min	Typ	Max	UNIT
RF Frequency Range	869	881.5	894	MHz
LO Frequency Range	979.52	992.02	1004.52	MHz
IF Frequency		110.52		MHz
RF Input Power		-30		dBm
LO Input Power		-5		dBm
Power Conversion Gain		26.0		dB
Power Conversion Gain Reduction		19.0		dB
Noise Figure		2.5		dB
RF Input Return Loss		5.6		dB
LO Input Return Loss		16.5		dB
LO Buffer Output Power		-10.3		dBm
Power Leakage LO In to RF In		-53.0		dBm
Third Order Input Intercept Point (IIP3)		-9.7		dBm
1dB RF Input Compression Point		-21.0		dBm
1dB Blocking Point		-18.0		dBm

LOW-Band Cascaded: Power Conversion Gain

Control state: 011000

SEE APPENDIX A: TEST BENCH SETUPS

Test setup Figure 20

The low band power conversion gain (dB) is the measured power (dBm) at the IF frequency minus the RF source power (dBm). It is measured using a RF source and a spectrum analyzer.

1)Set the RF source power (RF Pin) and the desired frequency (see Table 3). Connect the RF source to the EVM RF port, J10.

26	TRF1500 Integrated Dual-Band RF Receiver User’s Guide

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Contents TRF1500 Integrated Dual-Band RF Receiver User’s Guide Important Notice Trademarks PIC Telephone Contents Appendix a Test Bench Configuration Tables FiguresAbstract TRF1500 Integrated Dual-Band RF Receiver User’s GuideIngl E Chip Anal OG AS E B Product SupportWorld Wide Web Related DocumentationIntroduction External Components Design ConsiderationsBoard Design and Impedance Matching TRF 1500 Dual-Band Receiver TRF1500 Dual-Band Receiver Block DiagramPin Number Name Description Pin DescriptionsStrong Signal Control State and the Corresponding Active Circuits TRF1500 Control StateCascaded Block Diagram of the Low-Band Receiver Section Low-Band LNA Turn on Time Low-Band LNALow-Band LNA Output Low-Band LNA InputSurface Acoustic Wave SAW Filter Low-Band LNA Output ConfigurationLow-Band Mixer RF Input Low-Band MixerLow-Band if Output Low-Band Mixer LO InputLow-Band LO Buffer Amplifier Output Low-Band if Output ConfigurationLow-Band Buffer Amplifier Output Configuration Low-Band Cascaded Test Guide LOW-Band Cascaded Power Conversion GainLB LNA, LB Mixer, SAW Filter, and LB if Amp Parameters Low-Band Cascaded Power Conversion Gain Reduction Low-Band Cascaded Noise Figure TRF1500 Integrated Dual-Band RF Receiver User’s Guide Low-Band Cascaded LO Input Return Loss Low-Band Cascaded RF Input Return LossLow-Band Power Leakage LO In to RF LOW Band LO Buffer Output PowerLow-Band Cascaded Third Order Input Intercept Point IIP3 Low-Band Cascaded 1dB RF Input Compression Point Low-Band Cascaded 1dB Blocking Point Block Diagram of the High-Band Receiver Section High-Band LO Input High-Band RF InputHigh-Band LO Frequency Doubler Driven Configuration High-Band if Output High-Band if Output ConfigurationHigh-Band LO Buffer Amplifier Output High-Band LO Buffer Amplifier Output ConfigurationHigh-Band Cascaded Test Guide High-Band Cascaded Power Conversion GainHB LNA, HB mixer, HB if amp High-Band Cascaded Power Conversion Gain Reduction High-Band Cascaded Image Rejection High-Band Cascaded Noise Figure High-Band Cascaded RF Input Return Loss High-Band LO Buffer Output Power High-Band Cascaded Third Order Input Intercept Point IIP3 High-Band Cascaded Power Leakage LO In to RFHigh-Band Cascaded 1dB Input Compression Point High-Band Cascaded 2X2 Spur Performance High Band 3X3 Spur Performance Low- and High-Band Transmit Mixer Low-Band and High-Band TransmitLow-Band and High-Band Transmit Mixer RF Input Low- and High-Band Transmit Mixer if Output Configuration Low- and High-Band Transmit Mixer RF Input ConfigurationLow-Band Transmit Mixer Test Guide Low-Band Transmit Mixer Power Conversion GainLow-Band Transmit Performance Parameters Low-Band Transmit Mixer Noise Figure Low-Band Transmit Mixer Input Return Loss Low-Band Transmit Mixer Power Leakage TX In to LO Low-Band Transmit Mixer Power Leakage LO In to TXLow-Band Transmit Mixer 1dB Input Compression Point See Appendix a Test Bench Setups See Appendix a Test Bench Setups High-Band Transmit Mixer Performance Parameters High-Band Transmit Mixer Test GuideLow-Band LNA Gain Low-Band LNA Stand-Alone Test GuideLow-Band LNA Input Return Loss Low-Band LNA ParametersLow-Band LNA Isolation Low-Band LNA Output Return LossLow-Band LNA 1dB Input Compression Point Low-Band LNA Noise Figure Low-Band LNA Third Order Input Intercept Point IIP3 TRF1500 Integrated Dual-Band RF Receiver User’s Guide Low-Band Receiver Mixer Stand-Alone Test Guide Low-Band Receiver Mixer Power Conversion GainLow-Band Receiver Mixer Parameters Low-Band Receiver Mixer Input Return Loss Low-Band Receiver Mixer Noise Figure Low-Band Receiver Mixer Power Leakage LO In to RFTRF1500 Integrated Dual-Band RF Receiver User’s Guide Low-Band Receiver Mixer 1dB RF Input Compression Point 12.2 11.4 10.4 ←1dB Compression Point TRF1500 Integrated Dual-Band RF Receiver User’s Guide Appendix a Test Bench Configuration Test Bench Setup Noise Figure Test Bench Setup Power Leakage RF In to LO In Measurements Test Bench Setup LNA 1dB Input Compression Point