THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 50 MHz to 350 MHz CASCADEABLE AMPLIFIER FEATURES APPLICATIONS • • • • • High Dynamic Range – OIP3 = 36 dBm – NF < 4.5 dB Single Supply Voltage High Speed – VS = 3 V to 5 V – IS = Adjustable Input / Output Impedance – 50 Ω IF Amplifier – TDMA: GSM, IS-136, EDGE/UWE-136 – CDMA: IS-95, UMTS, CDMA2000 – Wireless Local Loop – Wireless LAN: IEEE802.11 DESCRIPTION The THS9001 is a medium power, cascadeable, gain block optimized for high IF frequencies. The amplifier incorporates internal impedance matching to 50 Ω and achieves greater than 15-dB input and output return loss from 50 MHz to 350 MHz with VS = 5 V, R(BIAS) = 237 Ω, L(COL) = 470 nH. Design requires only 2 dc-blocking capacitors, 1 power-supply bypass capacitor, 1 RF choke, and 1 bias resistor. Functional Block Diagram VS THS9001 IF(IN) R(BIAS) 1 6 2 5 CIN IF(OUT) COUT 3 4 L(COL) C(BYP) VS Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2003–2004, Texas Instruments Incorporated THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. AVAILABLE OPTIONS PACKAGED DEVICES PACKAGE TYPE THS9001DBVT TRANSPORT MEDIA, QUANTITY Tape and Reel, 250 SOT-23-6 THS9001DBVR Tape and Reel, 3000 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature (unless otherwise noted) (1) UNIT Supply voltage, GND to VS 5.5 V Input voltage GND to VS Continuous power dissipation See Dissipation Ratings Table Maximum junction temperature, TJ 150°C Maximum junction temperature, continuous operation, long term reliability, TJ (2) 125°C Storage temperature, Tstg -65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ESD Ratings (1) (2) 300°C HBM 2000 CDM 1500 MM 100 The absolute maximum ratings under any condition is limited by the constraints of the silicon process. Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. The maximum junction temperature for continuous operation is limited by package constraints. Operation above this temperature may result in reduced reliability and/or lifetime of the device. DISSIPATION RATING TABLE (1) (2) POWER RATING (1) PACKAGE ΘJC (°C/W) ΘJA (°C/W) TA≤ 25°C TA = 85°C DBV (2) 70.1 216 463 mW 185 mW Power rating is determined with a junction temperature of 125°C. Thermal management of the final PCB should strive to keep the junction temperature at or below 125°C for best performance. This data was taken using the JEDEC standard High-K test PCB. RECOMMENDED OPERATING CONDITIONS MIN NOM MAX UNIT Supply voltage 2.7 5 V Operating free-air temperature, TA -40 85 °C Supply current 2 100 mA THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 ELECTRICAL CHARACTERISTICS Typical Performance (VS = 5 V, R(BIAS) = 237 Ω, L(COL) = 470 nH) (unless otherwise noted) PARAMETER TEST CONDITIONS Gain OIP3 1-dB compression Input return loss Output return loss Reverse isolation Noise figure MIN TYP f = 50 MHz 15.8 f = 350 MHz 15.0 f = 50 MHz 35 f = 350 MHz 37 f = 50 MHz 20.6 f = 350 MHz 20.6 f = 50 MHz 15.4 f = 350 MHz 16.6 f = 50 MHz 17 f = 350 MHz 15 f = 50 MHz 20.7 f = 350 MHz 20.7 f = 50 MHz 3.7 f = 350 MHz 4 MAX UNITS dB dBm dBm dB dB dB dB PIN ASSIGNMENT IF(IN) 1 6 GND 2 5 VS 3 4 BIAS IF(OUT) L(COL) Terminal Functions Pin Numbers Name 1 IF(IN) Description Signal input 2 GND Negative power supply input 3 VS Positive power supply input 4 L(COL) Output transistor load inductor 5 IF(OUT) Signal output 6 BIAS Bias current input SIMPLIFIED SCHEMATIC VS L(COL) Bias IF(OUT) IF(IN) GND 3 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 TYPICAL CHARACTERISTICS TABLE OF GRAPHS FIGURE IS S21 Frequency response 1 S22 Frequency response 2 S11 Frequency response 3 S12 Frequency response 4 S21 vs R(Bias) 5 Output power vs Input power 6 OIP2 vs Frequency 7 Noise figure vs Frequency 8 OIP3 vs Frequency 9 Supply current vs R(Bias) 10 S21 Frequency response 11 S22 Frequency response 12 S11 Frequency response 13 S12 Frequency response 14 Noise figure vs Frequency 15 OIP2 vs Frequency 16 Output power vs Input power 17 OIP3 vs Frequency 18 S-Parameters of THS9001 as mounted on the EVM with VS = 5 V, R(BIAS) = 237 Ω, and L(COL) = 68 nH to 470 nH at room temp. S21 FREQUENCY RESPONSE S22 FREQUENCY RESPONSE 17 0 L(COL) = 470 nH 16 L(COL) = 100 nH L(COL) = 220 nH L(COL) = 330 nH VS = 5 V, R(BIAS) = 237, L(COL) = 68 nH −5 S22 − dB S21 − dB 15 14 13 L(COL) = 220 nH L(COL) = 100 nH 12 −15 L(COL) = 68 nH 11 10 4 −10 L(COL) = 470 nH VS = 5 V, R(BIAS) = 237, 1M 10 M 100 M L(COL) = 330 nH −20 1G 1M 10 M 100 M f − Frequency − Hz f − Frequency − Hz Figure 1. Figure 2. 1G THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 TYPICAL CHARACTERISTICS (continued) S11 FREQUENCY RESPONSE S12 FREQUENCY RESPONSE −15 0 VS = 5 V, R(BIAS) = 237 L(COL) = 68 nH −5 L(COL) = 470 nH −20 L(COL) = 100 nH L(COL) = 330 nH L(COL) = 220 nH −15 −20 −25 S12 − dB S11 − dB −10 L(COL) = 330 nH −25 L(COL) = 220 nH −30 L(COL) = 470 nH L(COL) = 100 nH −30 L(COL) = 68 nH −35 VS = 5 V, R(BIAS) = 237, −35 −40 1M 10 M 100 M f − Frequency − Hz −40 1M 1G 10 M 100 M 1G f − Frequency − Hz Figure 3. Figure 4. S-Parameters of THS9001 as mounted on the EVM with VS = 3 V and 5 V, R(BIAS) = various, and L(COL) = 470 nH at room temp. S21 vs R(BIAS) OUTPUT POWER vs INPUT POWER 17 22 R(BIAS) = 56.2 , VS = 3 V 16 S21 − dB PO − Output Power − dBm 20 15 R(BIAS) = 237 , VS = 5 V R(BIAS) = 97.7, VS = 3 V 14 R(BIAS) = 340 , VS = 5 V 13 VS = 5 V, IS = 99 mA 21 R(BIAS) = 549 VS = 5 V 12 VS = 5 V, IS = 75 mA 19 VS = 5 V, IS = 50 mA 18 17 16 15 VS = 3 V, IS = 94 mA 14 VS = 3 V, IS = 70 mA 13 R(BIAS) = 174 , VS = 3 V 12 11 VS = 3 V to 5 V, L(col) = 470 nH f = 100 MHz 10 1M 10 M 100 M f − Frequency − Hz Figure 5. VS = 3 V, IS = 49 mA 11 1G 10 −6 −4 −2 0 2 4 6 8 PI − Input Power − dBm 10 12 14 Figure 6. 5 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 TYPICAL CHARACTERISTICS (continued) OIP2 vs FREQUENCY NOISE FIGURE vs FREQUENCY 5 50 L(COL) = 470 nH VS = 3 V, IS = 94 mA 48 VS = 5 V, IS = 99 mA 4.75 VS = 5 V, IS = 99 mA Noise Figure − dB OIP2 − dBm VS = 5 V, IS = 75 mA 4.5 46 44 42 VS = 5 V, IS = 75 mA 40 VS = 3 V, IS = 70 mA VS = 3 V, IS = 94 mA 4.25 VS = 5 V, IS = 50 mA 4 VS = 3 V, IS = 49 mA 3.75 VS = 3 V, IS = 70 mA 3.5 38 36 40 0 50 150 100 250 200 f − Frequency − MHz 3 50 300 250 350 450 500 f − Frequency − MHz Figure 8. OIP3 vs FREQUENCY SUPPLY CURRENT vs R(BIAS) 200 L(COL) = 470 nH VS = 5 V, IS = 99 mA 36 150 Figure 7. 38 OIP3 − dBm 3.25 VS = 5 V, IS = 50 mA 180 160 VS = 5 V, IS = 75 mA 34 VS = 3 V, IS = 94 mA VS = 3 V, IS = 70 mA 32 VS = 5 V, IS = 50 mA 30 28 I S − Supply Current − mA 34 VS = 3 V, IS = 49 mA 140 120 VS = 5 V 100 80 VS = 3 V 60 VS = 3 V, IS = 49 mA 26 24 0 40 100 200 300 f − Frequency − MHz Figure 9. 6 400 500 20 50 150 250 350 R(BIAS) − Figure 10. 450 550 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 TYPICAL CHARACTERISTICS (continued) THS9001 as mounted on the EVM with VS = 5 V, R(BIAS) = 237 Ω, and L(COL) = 470 nH at 40°C, 25°C, and 85°C. S21 FREQUENCY RESPONSE S22 FREQUENCY RESPONSE 17 0 −45C VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH −2 16 −4 25C 15 −6 85C S22 − dB S21 − dB −8 14 13 −10 85C −12 −14 12 25C −16 VS = 5 V, R(BIAS) = 237 , L(col) = 470 nH 11 10 1M 10 M 100 M f − Frequency − Hz −18 −45C −20 1G 1M 10 M Figure 11. S12 FREQUENCY RESPONSE −15 VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH −5 VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH −20 −10 −45C −15 S12 − dB S11 − dB 1G Figure 12. S11 FREQUENCY RESPONSE 0 100 M f − Frequency − Hz 85C −20 −25 25C −25 85C −30 −30 −35 −45C −40 −35 25C −45 1M 10 M 100 M 1G −40 1M 10 M 100 M f − Frequency − MHz f − Frequency − Hz Figure 13. Figure 14. 1G 7 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 TYPICAL CHARACTERISTICS (continued) NOISE FIGURE vs FREQUENCY OIP2 vs FREQUENCY 48 6 VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH 5.5 47 85C VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH −45C 5 OIP2 − dBm Noise Figure − dB 46 25C 4.5 45 25C 85C 44 43 4 42 −45C 3.5 3 41 0 100 200 300 400 40 50 500 100 Figure 15. Figure 16. OUTPUT POWER vs INPUT POWER OIP3 vs FREQUENCY 22 25C 39 300 VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH 85C 38 −45C 25C 19 OIP3 − dBm PO − Output Power − dBm 250 40 VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH f = 100 MHz 20 85C 18 37 36 17 35 16 34 15 33 14 −2 0 2 4 6 8 PI − Input Power − dBm Figure 17. 8 200 f − Frequency − MHz f − Frequency − MHz 21 150 10 12 32 50 −45C 100 150 200 250 300 350 400 450 500 f − Frequency − MHz Figure 18. THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 TYPICAL CHARACTERISTICS S-Parameters Tables of THS9001 with EVM De-Embedded VS = 5 V, R(BIAS) = 237 Ω, L(COL) = 470 nH S21 Frequency (MHz) S11 Gain (dB) Phase (deg) Gain (dB) 1.0 -3.5 -165.0 5.0 11.7 -127.1 10.2 15.8 19.7 S22 S12 Phase (deg) Gain (dB) Phase (deg) Gain (dB) Phase (deg) -2.3 -1.1 -2.6 174.8 -64.4 -121.7 -1.5 -14.9 -2.8 140.4 -32.4 123.0 -150.1 -2.2 -42.3 -5.3 99.8 -23.6 79.5 16.3 -170.8 -6.6 -69.3 -10.7 64.5 -21.1 40.7 50.1 15.9 175.7 -16.2 -90.3 -16.2 33.9 -20.6 14.5 69.7 15.8 171.5 -21.1 -95.4 -16.9 26.4 -20.6 9.4 102.4 15.7 165.7 -32.3 -86.5 -17.1 19.9 -20.6 5.3 150.5 15.6 158.2 -28.0 45.9 -16.8 14.7 -20.7 2.1 198.1 15.5 151.1 -21.9 46.8 -16.2 10.8 -20.7 0.1 246.9 15.3 144.1 -18.9 37.2 -15.3 6.0 -20.7 -1.4 307.6 15.2 135.3 -16.0 27.8 -14.2 -1.8 -20.6 -3.9 362.8 15.0 127.8 -14.2 17.4 -13.3 -9.2 -20.6 -5.9 405.0 14.9 121.9 -12.8 10.9 -12.6 -16.0 -20.6 -8.2 452.2 14.7 115.4 -11.6 3.0 -11.8 -23.9 -20.6 -10.8 504.7 14.5 108.4 -10.3 -6.0 -10.9 -33.0 -20.7 -14.2 563.4 14.4 100.3 -8.9 -17.4 -9.8 -45.2 -20.9 -19.3 595.3 14.2 96.0 -8.2 -23.3 -9.2 -52.2 -21.0 -22.6 664.5 14.1 87.0 -6.7 -36.9 -8.0 -68.3 -21.7 -30.5 702.1 14.0 80.9 -5.9 -44.6 -7.3 -79.1 -22.5 -38.6 741.8 13.9 76.5 -5.1 -54.0 -6.8 -91.4 -24.0 -44.9 828.1 13.5 62.2 -4.3 -76.1 -6.3 -113.2 -26.5 -35.0 874.9 13.0 54.0 -4.1 -84.6 -5.9 -126.0 -27.0 -49.0 924.4 12.8 44.9 -3.6 -93.1 -5.1 -136.8 -28.0 -62.9 976.7 11.6 35.9 -3.5 -104.4 -5.3 -157.8 -34.0 -104.4 1031.9 11.1 33.0 -3.4 -115.7 -5.8 -172.3 -37.1 107.9 1090.3 10.4 29.2 -3.3 -122.0 -5.7 -173.4 -37.8 162.5 1151.9 10.3 22.2 -3.0 -131.3 -4.8 179.4 -31.1 169.5 1217.1 9.7 4.7 -2.9 -142.3 -3.9 161.9 -26.3 137.1 1285.9 8.6 0.7 -2.9 -151.7 -3.6 147.6 -22.7 121.9 1358.6 7.3 -8.3 -2.9 -161.2 -3.4 134.6 -20.6 116.5 1435.5 5.8 -14.5 -3.0 -170.1 -3.2 122.6 -18.8 105.2 1516.6 4.6 -22.7 -3.1 -178.6 -3.2 112.1 -17.2 96.0 1602.4 3.2 -28.4 -3.1 173.2 -3.1 101.7 -15.7 87.0 1693.0 1.5 -38.0 -3.1 165.1 -3.0 92.4 -14.3 79.2 1788.8 -0.5 -47.9 -3.1 157.6 -2.9 83.6 -13.1 68.8 1889.9 -2.5 -51.0 -3.2 148.8 -2.7 74.4 -12.4 56.9 1996.8 -4.1 -49.0 -3.4 139.5 -2.3 65.0 -12.2 48.2 9 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 APPLICATION INFORMATION The THS9001 is a medium power, cascadeable, amplifier optimized for high intermediate frequencies in radios. The amplifier is unconditionally stable and design requires only 2 dc-blocking capacitors, 1 power-supply bypass capacitor, 1 RF choke, and 1 bias resistor. Refer to Figure 24 for circuit diagram. The THS9001 operates with a power supply voltage ranging from 2.5 V to 5.5 V. The value of R(BIAS) sets the bias current to the amplifier. Refer to Figure 10. This allows the designer to trade-off linearity versus power consumption. R(BIAS) can be removed without damage to the device. Component selection of C(BYP), CIN, and COUT is not critical. The values shown in Figure 24 were used for all the data shown in this data sheet. The amplifier incorporates internal impedance matching to 50 Ω that can be adjusted for various frequencies of operation by proper selection of L(COL). Figure 19 shows the s-parameters of the part mounted on the standard EVM with VS = 5 V, R(BIAS) = 237Ω , and L(COL) = 470 nH. With this configuration, the part is very broadband, and achieves greater than 15-dB input and output return loss from 50 MHz to 325 MHz. 17 S11 S22 16 0 VS = 5 V, R(BIAS) = 237 , L(COL) = 470 nH −5 S21 − dB −10 14 −15 13 S12 −20 12 S11, S12, S22 − dB S21 15 −25 11 10 −30 1M 10 M 100 M 1G f − Frequency − Hz Figure 19. S-Parameters of THS9001 Mounted on the Standard EVM With VS = 5 V, R(BIAS) = 237 Ω, and L(COL) = 470 nH 10 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 APPLICATION INFORMATION (continued) Figure 20 Shows an example of a single conversion receiver architecture and where the THS9001 would typically be used. 900 MHz − 2 GHz 900 MHz − 2 GHz Image Rejection Filter LNA 2 LNA 1 LO Drive Amp 1 RX LO IF Amp 2 IF Amp 1 Mixer IF SAW PGA IF SAW ADC LO Drive Amp 2 THS9001 2x for Diversity Figure 20. Example Single Conversion Receiver Architecture Figure 21 shows an example of a dual conversion receiver architecture and where the THS9001 would typically be used. 900 MHz − 2 GHz LNA 1 100 MHz − 300 MHz 1st IF Amp Image Reject Filter 1st Mixer 1st IF SAW PGA LNA 2 LO1 Drive LO1 Drive Amp 2 RX LO 1 Amp 1 20 MHz − 70 MHz 2nd IF Amp1 2nd IF SAW 2nd IF Amp2 2nd Mixer Alias Filter ADC LO2 Drive LO2 Drive Amp 1 Amp 2 RX LO2 THS9001 2x for Diversity Figure 21. Example Dual Conversion Receiver Architecture Figure 22 shows an example of a dual conversion transmitter architecture and where the THS9001 would typically be used. BB 100 MHz − 300 MHz 900 MHz − 2 GHz 1st IF amp DAC RX LO1 BB Amp Alias Filter 1st Mixer LO1 Drive LO1 Drive Amp 2 Amp 1 IF SAW RX LO2 PGA 2nd Mixer PA LO2 Drive LO2 Drive Amp 2 Amp 1 THS9001 2x for Diversity Figure 22. Example Dual Conversion Transmitter Architecture 11 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 APPLICATION INFORMATION (continued) Figure 23 shows the THS9001 and Sawtek #854916 SAW filter frequency response along with the frequency response of the SAW filter alone. The SAW filter has a center frequency of 140 MHz with 10-MHz bandwidth and 8-dB insertion loss. It can be seen that the frequency response with the THS9001 is the same as with the SAW except for a 15-dB gain. The THS9001 is mounted on the standard EVM with VS = 5 V, R(BIAS) = 237 Ω, and L(COL) = 470 nH. Note the amplifier does not add artifacts to the signal. SAW + THS90001 SAW THS9001 RED = SAW 140 MHz SAW Only GREEN = 140 MHz SAW: Sawtek #854916 Figure 23. Frequency Response of the THS9001 and SAW Filter, and SAW Filter Only VS THS9001 IF(IN) CIN R(BIAS) 1 6 2 5 1 nF COUT IF(QUT) 1 nF 3 4 L(COL) C(BYP) 0.1 F VS Figure 24. THS9001 Recommended Circuit (Used for all Tests) 12 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 APPLICATION INFORMATION (continued) Evaluation Module Table 1 is the bill of materials, and Figure 25 and Figure 26 show the EVM layout. Bill Of Materials ITEM (1) DESCRIPTION 1 Cap, 0.1 µF, ceramic, X7R, 50 V 2 Cap, 1000 pF, ceramic, NPO, 100 V 3 4 5 Open 6 7 8 Standoff, 4-40 Hex, 0.625" Length REF DES QTY PART NUMBER (1) C1 1 (AVX) 08055C104KAT2A C2, C3 2 (AVX) 08051A102JAT2A Inductor, 470 nH, 5% L1 1 (Coilcraft) 0805CS-471XJBC Resistor, 237 Ω, 1/8 W, 1% R1 1 (Phycomp) 9C08052A2370FKHFT TR1 1 Jack, banana receptance, 0.25" dia. J3, J4 2 (SPC) 813 Connector, edge, SMA PCB jack J1, J2 2 (Johnson) 142-0701-801 4 (KEYSTONE) 1808 4 SHR-0440-016-SN 9 Screw, Phillips, 4-40, .250" 10 IC, THS9001 11 Board, printed-circuit U1 1 (TI) THS9001DBV 1 (TI) EDGE # 6453522 Rev.A The manufacturer's part numbers are used for test purposes only. Figure 25. EVM Top Layout Figure 26. EVM Bottom Layout 13 THS9001 www.ti.com SLOS426A – NOVEMBER 2003 – REVISED FEBRUARY 2004 0.085 0.053 0.008 Pin 1 0.040 0.032 0.032 Top View Figure 27. THS9001 Recommended Footprint (dimensions in inches) 14 PACKAGE OPTION ADDENDUM www.ti.com 30-Mar-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty THS9001DBVR ACTIVE SOT-23 DBV 6 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM THS9001DBVT ACTIVE SOT-23 DBV 6 250 CU NIPDAU Level-1-260C-UNLIM Green (RoHS & no Sb/Br) Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. 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