UM10453 2-Tone Test BGU7005 and BGU7007 GPS LNA Rev. 2 — 15 October 2012 User manual Document information Info Content Keywords LNA, GPS, BGU7005, BGU7007 Linearity Measurements Abstract This document describes 2-Tone Linearity Measurements with the BGU7005 and BGU7007 GPS low noise amplifier evaluation board. UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA Revision history Rev Date Description v1 20110311 First release v2 20121015 Updated version Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 2 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 1. Introduction NXP Semiconductors BGU7005 and BGU7007 are low-noise amplifiers for GPS receiver applications in a plastic, leadless 6 pin, extremely thin small outline SOT886 package. The typical gain is 16.5 dB for the BGU7005 and 18.5 dB for the BGU7007. Both types have a noise figure of 0.9 dB (incl. board losses) or 0.85 dB (board losses subtracted). They have a superior linearity performance to suppress interference and noise from cohabitation cellular transmitters, while retaining sensitivity. The GPS LNA evaluation boards (EVB’s) are designed to evaluate the performance of the BGU7005 and BGU7007 applied as a GPS LNA (Fig 1). The application diagram, board layout, bill of materials, and typical results of the EVB’s are given in separate application notes about the BGU7005 and BGU7007. This document shows examples of the linearity performance to suppress interference from co-habitation (cellular) transmitters with a 2-Tone test. Fig 1. BGU7005 GPS LNA evaluation board (Same board is used for the BGU7007). Note 1: Including PCB losses. The BGU7005 and BGU7007 GPS LNA evaluation boards simplify the evaluation of the BGU7005 and BGU7007 GPS LNA’s for the GPS applications. The evaluation boards enable testing of the device performance and require no additional support circuitry. The boards are fully assembled with the BGU7005 or BGU7007, including the input series inductor as well as a decoupling capacitor to optimize the performance. The boards are supplied with two SMA connectors for input and output connection to RF test equipment. The BGU7005 and BGU7007 can operate from a 1.5 V to 2.85 V single supply and consumes about 5 mA. UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 3 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 1.1 Application Circuit The circuit diagram and EVB-layout of the evaluation board are shown below. With jumper JU1 the enable pin can be controlled to either to Vcc or GND. Fig 2. Circuit diagram of the BGU7005 (and BGU7007) evaluation board 1.2 Board layout Fig 3. UM10453_2 User manual Printed circuit board lay-out of the BGU7005 (and BGU7007) GPS LNA evaluation board All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 4 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 2. Out-of-Band Second- and Third-Order Intercept Points At the average power levels of –130 dBm that have to be received by a GPS receiver, the system will not have in-band intermodulation problems caused by the GPS-signal itself. Strong out-of-band cell phone TX jammers however can cause linearity problems, and result in third-order intermodulation products in the GPS frequency band. The Out-of-Band Second- and Third-Order Intercept Points (IIP2 and IIP3) are measured by a two-tone measurement where the carriers have been chosen is such a way that one of the following conditions is met: 1. Second-Order distortion: fspur = f1 + f2 ~1575 MHz 2. Third Order Distortion: fspur = 2f1 - f2 ~1575 MHz With fspur is around the center of the GPS band (~1575 MHz). Figure 4 gives an overview of the frequency-spectrum caused by second- and third order intermodulation in a 2-Tone test. Fig 4. O-IIP3 at Vcc = 1.5 V, 1.8V and 2.85 V Several cases can be found for which one of the above conditions is valid. In this document 5 test cases will be discussed in more detail. Table 1 gives the five cases. The fspur-component which falls inside the GPS-band is high-lighted. Table 1. Test cases Out-of-Band Input Second- and Third-Order Intercept Point Test Signal Signal IM2LSB- IM3LSB- Input Input IM3USBIM2USBcase Type f1 Type f2 Comp. Comp Tone-1 Tone-2 Comp. Comp. UM10453_2 User manual f2-f1 2f1-f2 f1 f2 2f2-f1 f2+f1 [MHz] [MHz] [MHz] [MHz] [MHz] [MHz] 1 UMTS FDD GSM1800 138 1575.42 1713.42 1851.42 1989.42 3564.84 2 LTE LTE 0.6 786.8 787.4 788 788.6 1575.4 3 GSM900 BT/WLAN 1575.4 -750.8 824.6 2400 3975.4 3224.6 4 GSM1800 WLAN 3425 |-1575| 1850 5275 8700 7125 5 GPS GPS 1 1574 1575 1576 1577 3151 All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 5 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA The two carriers in the Table 1 (f1 and f2) can be seen as two TX jammers (for example in UMTS FDD and GSM1800 cell phone systems). One of the third-order products (2f1-f2) generated in the LNA due to amplifier third order non-linearity’s can fall at the desired 1575.42 MHz frequency as follows: 2f1-f2=2(1713.42 MHz)-1851.42 MHz=1575.42 MHz (test-case 1). This third-order product can influence the sensitivity of the GPS receiver drastically. So this third-order intermodulation product needs to be as low as possible, meaning the outof-band intercept point must be as high as possible. As an example Fig 5 shows the In- and Output-IP3 of the BGU7007 at different supply voltages (typical values). The results of all test-cases will be discussed later. In Fig 5 the Pin-Pout-curve and third-order spur (IM3LSB) and their trend lines are given. The point where both dashed trend lines meet gives the in- and output IP3. (1) [email protected] (2) IM3(2f1-f2)@2.85V (3) [email protected] (4) [email protected] (5) IM3(2f1-f2)@1.5V (6) IM3(2f1-f2)@1.8V (7) Linear ([email protected]) (8) Linear (IM3(2f1-f2)@2.85V) BGU7007 GPS LNA EVB#166, 2-Tone test, f1 =1713.42 MHz, f2 =1851.42 MHz, f_spur =1575.42 MHz Fig 5. UM10453_2 User manual O-IIP3 at Vcc = 1.5 V, 1.8 V and 2.85 V All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 6 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA The formula’s to calculate the IP2 and IP3 are taken from literature and given below: Formula’s IP2: f1: OIP2LSB = po1 + po2 – IM2LSB [dBm] (1) f2: OIP2USB = po2 + po1 – IM2USB [dBm] (2) IIP2 = OIP2LSB – Gp1 [dBm] (3) IIP2 = OIP2USB – Gp2 [dBm] (4) With Gp1 = power gain = po1 – pi1 [dB] (5) Gp2 = power gain = po2 – pi2 [dB] (6) Formula’s IP3: f1: OIP3LSB = po1 + (po2 – IM3LSB)/2 [dBm] (7) f2: OIP3USB = po2 +( po1 – IM3USB)/2 [dBm] (8) IIP3LSB = OIP3USB – Gp1 [dBm] (9) IIP3USB = OIP3LSB – Gp2 [dBm] (10) Note: The in- and output powers in the formula’s are for in- and output-levels of the DUT. Therefore the cable losses and RF-Combiner losses have to be measured. These losses can be used to correct the measured power levels. UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 7 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 3. Required Equipment In order to measure the evaluation board the following is necessary: • DC Power Supply up to 30 mA at 1.5 V to 2.85 V; • Two RF signal generators capable of generating an RF signal at the jammer frequencies f1 and f2 listed in Table 1; • An RF spectrum analyzer that covers at least the operating frequency of 1575 MHz as well as a few of the harmonics, so up to 6 GHz should be sufficient; • Amp meter to measure the supply current (optional); • RF-Combiner; • Proper RF cables. The table below gives an overview of the equipment used for the 2 Tone test. It can be used as an example which equipment to use. Table 2. Equipment used for 2-Tone test Equipment Type Settings RF-Generator f1 - R&S SMA 100A (9 kHz…6 GHz) RF-Generator f2 R&S SMR20 - (10 MHz…20 GHz) UM10453_2 User manual Power Splitter/Combiner Agilent 11667B (DC-26.5 GHz) Spectrum Analyzer HP8595E - Res. BW: 10 kHz Video BW: 10 kHz (AUTO) Video AVG: ON (100x) Pref: -20 dBm Att.: 10 dB Fcenter Fmeas Fspan: 100 kHz Tweep: Auto All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 8 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 4. Connections and setup The BGU7005 and BGU7007 GPS LNA evaluation boards are fully assembled and tested. Figure 6 gives an overview of the 2-Tone test setup. Please follow the steps below for a step-by-step guide to operate the evaluation board and testing the device functions. 1. Measure the cable- and RF-Combiner losses at the frequencies which are used during the evaluation to (see Table 1). These losses are used to correct the measured power levels. 2. Connect the DC power supply to the Vcc, and GND terminals. Set the power supply to the desired supply voltage, between 1.5 V and 2.85 V, but never exceed 3.1 V as it might damage the BGU7007. 3. Jumper JU1 is connected between the Vcc terminal of the evaluation board and the Ven pin of the BGU7005 or BGU7007. Fig 6. 2-Tone Test Setup 4. Connect the RF signal generators via the RF-combiner to the RF input and the spectrum analyzer to the RF output of the evaluation board (See Fig 6). Do not turn on the RF output of the Signal generators yet, set it to -30 dBm output power at f1 and f2 (see Table 1), set the spectrum analyzer at fspur (~1575 MHz, see Table 1) center frequency and a reference level of -20 dBm. 5. Turn on the DC power supply and it should read approximately 5 mA. 6. Enable the RF output of the generators; the spectrum analyzer displays a tone of around –95 dBm at fspur (~1575 MHz, see Table 1). UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 9 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 7. Increase the RF output-level of the Signal generators of f1 and f2 from -30 dBm to approx. -5 dBm and check the spectrum analyzer level at fspur (~1575 MHz, see Table 1). Fig 7. UM10453_2 User manual BGU7005 (and BGU7007) evaluation board including its connections All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 10 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 5. Typical Evaluation Board results 5.1 Test-Case 1 Generators: f1 = 1713.42 MHz, f2 = 1851.42 MHz Spectrum Analyzer: Third Order Product fspur = 1575.42 MHz The figures below give the measured results of the 2-Tone test for BGU7007 and BGU7005 EVB’s: (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM3(2f1-f2)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7007 GPS LNA EVB#166, Icc = f(Pin), 2-Tone test, f1=1713.42 MHz, f2=1851.42 MHz, f_spur=1575.42 MHz (5) IM3(2f1-f2)@1.5V (6) IM3(2f1-f2)@1.8V (7) Linear ([email protected]) (8) Linear (IM3(2f1-f2)@2.85V) BGU7007 GPS LNA EVB#166, 2-Tone test, f1=1713.42 MHz, f2=1851.42 MHz, f_spur=1575.42 MHz Fig 8. Tone Test Results Test-Case 1, BGU7007 UM10453_2 User manual Fig 9. 2-Tone Test Results Test-Case 1, BGU7007 All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 11 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM3(2f1-f2)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7005 GPS LNA EVB#60, Icc = f(Pin), 2-Tone test, f1=1713.42 MHz, f2=1851.42 MHz, f_spur=1575.42 MHz (5) IM3(2f1-f2)@1.5V (6) IM3(2f1-f2)@1.8V (7) Linear ([email protected]) (8) Linear (IM3(2f1-f2)@2.85V) BGU7005 GPS LNA EVB#60, 2-Tone test, f1=1713.42 MHz, f2=1851.42 MHz, f_spur=1575.42 MHz Fig 10. Tone Test Results Test-Case 1, BGU7005 Table 3. Fig 11. 2-Tone Test Results Test-Case 1, BGU7005 o Results Test case 1: Third Order Intercept Points, Temp = 25 C. DUT DUT DUT DUT DUT DUT Vsup Isup Pin_f1 Pout_f1 Gp_DUT_f1 IM3_(2f1-f2) OIP3_(2f1-f2) IIP3_(2f1-f2) Type EVB# [V] [mA] [dBm] [dBm] [dB] [dBm] [dBm] [dBm] BGU7007 166 1.5 9.26 -29.84 -10.41 19.43 -75.90 21.59 2.16 BGU7007 166 1.8 9.5 -29.84 -10.30 19.54 -75.80 21.70 2.16 BGU7007 166 2.85 10.3 -29.84 -10.10 19.74 -77.30 22.75 3.01 BGU7005 60 1.5 8.5 -29.84 -12.90 16.94 -86.70 23.30 6.36 BGU7005 60 1.8 8.8 -29.84 -12.70 17.14 -87.60 24.00 6.86 BGU7005 60 2.85 9.9 -29.84 -12.40 17.44 -90.50 25.95 8.51 UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 12 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 5.2 Test-Case 2 Generators: f1 = 787.4 MHz, f2 = 788 MHz Spectrum Analyzer: Second Order Product fspur = 1575.4 MHz The figures below give the measured results of the 2-Tone test for BGU7007 and BGU7005 EVB’s: (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM2(f2+f1)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7007 GPS LNA EVB#166, Icc = f(Pin), 2-Tone test, f1=787.4 MHz, f2=788 MHz, f_spur=1575.4 MHz (5) IM2(f2+f1)@1.5V (6) IM2(f2+f1)@1.8V (7) Linear ([email protected]) (8) Linear (IM2(f2+f1)@2.85V BGU7007 GPS LNA EVB#166, 2-Tone test, f1=787.4 MHz, f2=788 MHz, f_spur=1575.4 MHz Fig 12. Tone Test Results Test-Case 2, BGU7007 UM10453_2 User manual Fig 13. 2-Tone Test Results Test-Case 2, BGU7007 All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 13 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM2(f2+f1)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7005 GPS LNA EVB#60, Icc = f(Pin), 2-Tone test, f1=787.4 MHz, f2=788 MHz, f_spur=1575.4 MHz (5) IM2(f2+f1)@1.5V (6) IM2(f2+f1)@1.8V (7) Linear ([email protected]) (8) Linear (IM2(f2+f1))@2.85V BGU7005 GPS LNA EVB#60, 2-Tone test, f1=787.4 MHz, f2=788 MHz, f_spur=1575.4 MHz Fig 14. Tone Test Results Test-Case 2, BGU7005 Table 4. Fig 15. 2-Tone Test Results Test-Case 2, BGU7005 o Results Test case 2: Second Order Intercept Points, Temp = 25 C. DUT DUT DUT DUT DUT DUT Vsup Isup Pin_f1 Pout_f1 Gp_DUT_f1 IM2_(f2+f1) OIP2_(f2+f1) IIP2_(f2+f1) Type EVB# [V] [mA] [dBm] [dBm] [dB] [dBm] [dBm] [dBm] BGU7007 166 1.5 7.5 -29.84 -19.80 10.04 -31.25 -8.35 -18.39 BGU7007 166 1.8 7.65 -29.84 -19.80 10.04 -31.36 -8.24 -18.28 BGU7007 166 2.85 8.37 -29.84 -19.45 10.39 -32.45 -6.45 -16.84 BGU7005 60 1.5 7.39 -29.84 -20.65 9.19 -33.65 -7.65 -16.84 BGU7005 60 1.8 7.52 -29.84 -20.60 9.24 -33.84 -7.36 -16.60 BGU7005 60 2.85 8.36 -29.84 -20.30 9.54 -35.10 -5.50 -15.04 UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 14 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 5.3 Test-Case 3 Generators: f1 = 824.6 MHz, f2 = 2400 MHz Spectrum Analyzer: Second Order Product fspur = 1575.4 MHz The figures below give the measured results of the 2-Tone test for BGU7007 and BGU7005 EVB’s: (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM2(f2-f1)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7007 GPS LNA EVB#168, Icc = f(Pin), 2-Tone test, f1=824.6 MHz, f2=2400 MHz, f_spur=1575.4 MHz (5) IM2(f2-f1)@1.5V (6) IM2(f2-f1)@1.8V (7) Linear ([email protected]) (8) Linear (IM2(f2-f1)@2.85V BGU7007 GPS LNA EVB#166, 2-Tone test, f1=824.6 MHz, f2=2400 MHz, f_spur=1575.4 MHz Fig 16. Tone Test Results Test-Case 3, BGU7007 UM10453_2 User manual Fig 17. 2-Tone Test Results Test-Case 3, BGU7007 All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 15 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM2(f2-f1)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7005 GPS LNA EVB#60, Icc = f(Pin), 2-Tone test, f1=824.6 MHz, f2=2400 MHz, f_spur=1575.4 MHz (5) IM2(f2-f1)@1.5V (6) IM2(f2-f1)@1.8V (7) Linear ([email protected]) (8) Linear (IM2(f2-f1)@2.85V BGU7005 GPS LNA EVB#60, 2-Tone test, f1=824.6 MHz, f2=2400 MHz, f_spur=1575.4 MHz Fig 18. Tone Test Results Test-Case 3, BGU7005 Table 5. Fig 19. 2-Tone Test Results Test-Case 3, BGU7005 o Results Test case 3: Second Order Intercept Points, Temp = 25 C. DUT DUT DUT DUT DUT DUT Vsup Isup Pin_f1 Pout_f1 Gp_DUT_f1 IM2_(f2-f1) OIP2_(f2-f1) IIP2_(f2-f1) Type EVB# [V] [mA] [dBm] [dBm] [dB] [dBm] [dBm] [dBm] BGU7007 166 1.5 6.64 -29.84 -19.50 10.34 -37.45 1.28 -9.06 BGU7007 166 1.8 6.75 -29.84 -19.45 10.39 -37.52 1.56 -8.83 BGU7007 166 2.85 7.48 -29.84 -19.11 10.73 -38.71 3.38 -7.35 BGU7005 60 1.5 6.33 -29.84 -20.60 9.24 -41.10 1.20 -8.04 BGU7005 60 1.8 6.48 -29.84 -20.50 9.34 -41.16 1.46 -7.88 BGU7005 60 2.85 7.34 -29.84 -20.10 9.74 -42.40 3.50 -6.24 UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 16 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 5.4 Test-Case 4 Generators: f1 = 1575 MHz, f2 = 1576 MHz Spectrum Analyzer: Third Order Product fspur = 1574 MHz The figures below give the measured results of the 2-Tone test for BGU7007 and BGU7005 EVB’s: (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM3(2f1-f2)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7007 GPS LNA EVB#166, Icc = f(Pin), 2-Tone test, f1=1850 MHz, f2=5275 MHz, f_spur=1575.4 MHz (5) IM3(2f1-f2)@1.5V (6) IM3(2f1-f2)@1.8V (7) Linear ([email protected]) (8) Linear (IM3(2f1-f2)@2.85V BGU7007 GPS LNA EVB#166, 2-Tone test, f1=1850 MHz, f2=5275 MHz, f_spur=1575.4 MHz Fig 20. Tone Test Results Test-Case 4, BGU7007 UM10453_2 User manual Fig 21. 2-Tone Test Results Test-Case 4, BGU7007 All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 17 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM3(2f1-f2)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7005 GPS LNA EVB#60, Icc = f(Pin), 2-Tone test, f1=1850 MHz, f2=5275 MHz, f_spur=1575.4 MHz (5) IM3(2f1-f2)@1.5V (6) IM3(2f1-f2)@1.8V (7) Linear ([email protected]) (8) Linear (IM3(2f1-f2)@2.85V BGU7005 GPS LNA EVB#60, 2-Tone test, f1=1850 MHz, f2=5275 MHz, f_spur=1575.4 MHz Fig 22. Tone Test Results Test-Case 4, BGU7005 Table 6. Fig 23. 2-Tone Test Results Test-Case 4, BGU7005 o Results Test case 4: Third Order Intercept Points, Temp = 25 C. DUT DUT DUT DUT DUT DUT Vsup Isup Pin_f1 Pout_f1 Gp_DUT_f1 IM3_(2f1-f2) OIP3_(2f1-f2) IIP3_(2f1-f2) Type EVB# [V] [mA] [dBm] [dBm] [dB] [dBm] [dBm] [dBm] BGU7007 166 1.5 6.5 -29.85 -12.40 17.45 -80.50 8.02 -9.44 BGU7007 166 1.8 6.6 -29.85 -12.30 17.55 -80.70 8.25 -9.30 BGU7007 166 2.85 7.3 -29.85 -12.10 17.75 -83.00 9.60 -8.15 BGU7005 60 1.5 6.05 -29.85 -14.84 15.01 -91.30 9.71 -5.30 BGU7005 60 1.8 6.18 -29.85 -14.68 15.17 -91.80 10.07 -5.10 BGU7005 60 2.85 7 -29.85 -14.29 15.56 -92.80 10.96 -4.60 UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 18 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 5.5 Test-Case 5 Generators: f1 = 1575 MHz, f2 = 1576 MHz Spectrum Analyzer: Third Order Product fspur = 1574 MHz The figures below give the measured results of the 2-Tone test for BGU7007 and BGU7005 EVB’s: (1) Vcc = 2.85 V (1) [email protected] (2) Vcc = 1.8 V (2) IM3(2f1-f2)@2.85V (3) Vcc = 1.5 V (3) [email protected] (4) [email protected] BGU7007 GPS LNA EVB#166, Icc = f(Pin), 2-Tone test, f1=1575 MHz, f2=1576 MHz, f_spur=1574 MHz (5) IM3(2f1-f2)@1.5V (6) IM3(2f1-f2)@1.8V (7) Linear ([email protected]) (8) Linear (IM3(2f1-f2)@2.85V BGU7007 GPS LNA EVB#166, Icc = f(Pin), 2-Tone test, f1=1575 MHz, f2=1576 MHz, f_spur=1574 MHz Fig 24. Tone Test Results Test-Case 5, BGU7007 UM10453_2 User manual Fig 25. 2-Tone Test Results Test-Case 5, BGU7007 All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 19 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA (1) Vcc = 2.85 V (4) [email protected] (2) Vcc = 1.8 V (5) IM3(2f1-f2)@2.85V (3) Vcc = 1.5 V (6) [email protected] (7) [email protected] BGU7005 GPS LNA EVB#60, Icc = f(Pin), 2-Tone test, f1=1575 MHz, f2=1576 MHz, f_spur=1574 MHz (8) IM3(2f1-f2)@1.5V (9) IM3(2f1-f2)@1.8V (10) Linear ([email protected]) (11) Linear (IM3(2f1-f2)@2.85V BGU7005 GPS LNA EVB#60, Icc = f(Pin), 2-Tone test, f1=1575 MHz, f2=1576 MHz, f_spur=1574 MHz Fig 26. Tone Test Results Test-Case 5, BGU7005 Table 7. Fig 27. 2-Tone Test Results Test-Case 5, BGU7005 o Results Test case 5: Third Order Intercept Points, Temp = 25 C. DUT DUT DUT DUT DUT DUT Vsup Isup Pin_f1 Pout_f1 Gp_DUT_f1 IM3_(2f1-f2) OIP3_(2f1-f2) IIP3_(2f1-f2) Type EVB# [V] [mA] [dBm] [dBm] [dB] [dBm] [dBm] [dBm] BGU7007 166 1.5 10.52 -29.84 -9.81 20.03 -57.24 13.80 -6.23 BGU7007 166 1.8 10.77 -29.84 -9.72 20.12 -56.60 13.61 -6.52 BGU7007 166 2.85 11.6 -29.84 -9.65 20.19 -58.90 14.85 -5.34 BGU7005 60 1.5 9.64 -29.84 -12.30 17.54 -62.50 12.70 -4.84 BGU7005 60 1.8 9.9 -29.84 -12.05 17.79 -62.00 12.80 -4.99 BGU7005 60 2.85 11.05 -29.84 -11.85 17.99 -63.50 13.85 -4.14 UM10453_2 User manual All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 20 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 6. Legal information 6.1 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 6.2 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or UM10453_2 User manual customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. Evaluation products — This product is provided on an “as is” and “with all faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates and their suppliers expressly disclaim all warranties, whether express, implied or statutory, including but not limited to the implied warranties of noninfringement, merchantability and fitness for a particular purpose. The entire risk as to the quality, or arising out of the use or performance, of this product remains with customer. In no event shall NXP Semiconductors, its affiliates or their suppliers be liable to customer for any special, indirect, consequential, punitive or incidental damages (including without limitation damages for loss of business, business interruption, loss of use, loss of data or information, and the like) arising out the use of or inability to use the product, whether or not based on tort (including negligence), strict liability, breach of contract, breach of warranty or any other theory, even if advised of the possibility of such damages. Notwithstanding any damages that customer might incur for any reason whatsoever (including without limitation, all damages referenced above and all direct or general damages), the entire liability of NXP Semiconductors, its affiliates and their suppliers and customer’s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars (US$5.00). The foregoing limitations, exclusions and disclaimers shall apply to the maximum extent permitted by applicable law, even if any remedy fails of its essential purpose. 6.3 Trademarks Notice: All referenced brands, product names, service names and trademarks are property of their respective owners. All information provided in this document is subject to legal disclaimers. Rev. 2 — 15 October 2012 © NXP B.V. 2012. All rights reserved. 21 of 22 UM10453 NXP Semiconductors 2-Tone Test BGU7005 and BGU7007 GPS LNA 7. Contents 1. 1.1 1.2 2. 3. 4. 5. 5.1 5.2 5.3 5.4 5.5 6. 6.1 6.2 6.3 7. Introduction ......................................................... 3 Application Circuit .............................................. 4 Board layout ....................................................... 4 Out-of-Band Second- and Third-Order Intercept Points ................................................................... 5 Required Equipment ........................................... 8 Connections and setup ....................................... 9 Typical Evaluation Board results ..................... 11 Test-Case 1...................................................... 11 Test-Case 2...................................................... 13 Test-Case 3...................................................... 15 Test-Case 4...................................................... 17 Test-Case 5...................................................... 19 Legal information .............................................. 21 Definitions ........................................................ 21 Disclaimers....................................................... 21 Trademarks ...................................................... 21 Contents ............................................................. 22 Please be aware that important notices concerning this document and the product(s) described herein, have been included in the section 'Legal information'. © NXP B.V. 2012. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 15 October 2012 Document identifier: UM10453_2