SX1710 DATASHEET WIRELESS SENSING & TIMING Broadband High Efficiency RF Power Amplifier 100 MHz to 1 GHz GENERAL DESCRIPTION KEY PRODUCT FEATURES The SX1710 is a high-gain / highly efficient power amplifier offering high performances and broad band operation. This power amplifier is intended to be used with constant envelop signal in VHF and UHF frequency bands. This is the ideal part for RFID and other FM, FSK, ASK applications in a frequency range from 100 MHz to 1 GHz. The chip is fabricated on a silicon process. The chip is assembled in a low thermal resistance 5x5 mm2 QFN28 package. APPLICATIONS Wireless data communication (FSK, ASK / OOK, GFSK, MSK). RFID reader/writers. Wireless sensor network and Ad Hoc application. Remote control and sensing systems. Commercial and consumer electronics. Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Wide operation frequency range from 100MHz to 1 GHz. High power gain up to 35dB. High output power up to 34.5dBm (2.8W). High power added efficiency up to 55%. 5x5 mm2 plastic QFN28 with 0.5mm pitch. ORDERING INFORMATION Automatic meter reading (AMR). Part Number Temperature Range Package MOQ SX1710IMLTRT -40 °C to +85 °C Lead Free QFN-28 3000 pieces on reels Page 1 RoHS/WEEE compliant product www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING Table of contents Section 1. 2. 3. 4. 5. Page General Description ................................................................................................................................................. 3 1.1. Package Marking ............................................................................................................................................. 3 1.2. Pin Description .................................................................................................................................................4 Electrical Characteristics ......................................................................................................................................... 5 2.1. ESD Notice ...................................................................................................................................................... 5 2.2. Absolute Maximum Ratings ............................................................................................................................. 5 2.3. Operating Range.............................................................................................................................................. 5 2.4. Specifications ...................................................................................................................................................6 Application Information ............................................................................................................................................ 7 3.1. General Application Schematic........................................................................................................................ 7 3.2. General Application Layout ..............................................................................................................................8 Packaging Information ............................................................................................................................................. 9 Revision History..................................................................................................................................................... 11 FIGURES Figure 1 Package Marking .................................................................................................................................3 Figure 2 SX1710 test and application circuit for 450MHz Applications ..............................................................7 Figure 3 SX1710 Test and Application Layout for VHF and UHF Operations (59.18mm by 33mm) ..................8 Figure 4 Description of the SX1710 Package .....................................................................................................9 Figure 5 Land Pattern .......................................................................................................................................10 TABLES Table 1 Pin Description .....................................................................................................................................4 Table 2 Absolute Maximum Ratings ..................................................................................................................5 Table 3 Operating Range ..................................................................................................................................5 Table 4 Specifications .......................................................................................................................................6 Table 5 Revision History ..................................................................................................................................11 Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 2 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 1. General Description SX1710 is a three-stage wide-band power amplifier device with high gain. An input power of -5 dBm is required to achieve its fully saturate output power. In normal application for signal with constant envelope, the first and second stages of the amplifier operate in class-A and class-AB mode, respectively. The third stage of the amplifier operates in class-C mode. Its DC current will be increased with RF input signal. 1.1. Package Marking Figure 1. Package Marking Note: yyww: Date Code xxxxx: Lot No. Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 3 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 1.2. Pin Description The description of the pins of the circuit is given in Table 1 below. Table 1 Pin Description Number Name Type Description 1 Vdd1 Power Supply Power Supply for first stage 2 NC Floating No Connection 3 RFin RF Input RF Input and off chip DC blocking capacitor required 4 NC Floating No Connection 5 RFin RF Input Same as Pin 3 6 NC 7 NC Floating No Connection 8 Vgs1 Analog Input Bias Input for first stage 9 GND 10 GND Ground Ground 11 NC 12 NC Floating No Connection 13 NC 14 Vdda Power Supply Power Supply for ESD 15 NC 16 RFout 17 RFout 18 RFout 19 RFout 20 RFout 21 NC 22 NC 23 NC 24 No Connection RF Output Power Supply and RF Output for the output stage Floating No Connection Vgs3 Analog Input Bias Input for Output Stage 25 NC Floating No Connection 26 Vdd2 Power Supply Power Supply for Second Stage 27 NC Floating No Connection 28 Vgs2 Analog Input Bias Input for Second Stage Snug GND Ground Ground and Thermal Dissipation Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 4 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 2. Electrical Characteristics 2.1. ESD Notice The SX1710 is an RF Power Amplifier device which satisfies the ff: Class 1A of the JEDEC standard JESD22-A114 (Human Body Model) on all pins Class I of the JEDEC standard JESD22-C101 (Charge Device Model) on all pins CAUTION: ESD sensitive device! It should thus be handled with all the necessary ESD precautions to avoid any permanent damage! 2.2. Absolute Maximum Ratings Stresses above the values listed below may cause permanent device failure. Exposure to absolute maximum ratings for extended periods may affect device reliability. Table 2 Absolute Maximum Ratings Symbol Description Min. Max. Unit -0.5 5.0 V - 2.2 A -0.5 2.0 V Vdsmr Drain to source voltage (transient) Idsmr Total supply current Vgsmr Gate to source voltage Ovswrmr Output load VSWR - 10:1 - Irfmr Input level - 15 dBm Tsoldmr Soldering temperature (lead) - 260 °C Tmr Storage temperature -40 125 °C Min. Max. Unit 2.3. Operating Range Conditions: VDD must be powered up before or in parallel with VGG (Vbias) Table 3 Operating Range Symbol Description VDD Supply Voltage 2.5 5.0 V VGG (Vbias) Bias Main Supply 2.5 4.0 V VGS Bias Control Voltage per stage 0.7 1.7 V Tja Thermal Resistance: junction-to-ambient 30.21 - °C/W Trop Temperature -40 85 °C Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 5 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 2.4. Specifications Nominal conditions: Measurements performed on the basis of the general application circuitry. Temp = 25 °C, VDD = 4.0V, Vbias= 3.3V, RF frequency = 465 MHz, Pin = 0 dBm CW, unless otherwise specified. Table 4 Specifications Description Conditions Min. Typ. Max. Unit 100 - 1000 MHz Frequency Range Nominal Supply Current VDD = 4.0 V, Pout = 33 dBm - 1.23 - A Maximum Output Power (Pmax) Nominal - 33 - dBm Power Added Efficiency VDD = 4.0 V, Pout = 33 dBm - 41 - % Input Power for Pmax Nominal - 0 - dBm Reverse Isolation Nominal - -60 - dB Second Harmonic Level Nominal - -42 - dBc Third Harmonic Level Nominal - -50 - dBc Fourth Harmonic Level Nominal - -33 - dBc Input Return Loss Externally connected to 50Ω - 6.2:1 - - Output Return Loss Externally connected to 50Ω - 10:1 - - Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 6 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 3. Application Information 3.1. General Application Schematic The typical test and application schematics including harmonics filtering for 450MHz operation is shown in Figure 2. Figure 2. SX1710 test and application circuit for 450MHz Applications Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 7 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 3.2. General Application Layout The typical test and application layout including harmonics filtering for VHF and UHF operation is shown in figure 3 Figure 3. SX1710 Test and Application Layout for VHF and UHF Operations (59.18mm by 33mm) A special care must be taken care for the multi via layout of the PCB. 10 mil hole size is recommended and via must be trough top layer to bottom layer. If transmit duty cycle is high, a good thermal dissipation is necessary and a heat sink must be required. Please contact Semtech support, specific reference designs are available to fit your application. Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 8 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 4. Packaging Information SX1710 is available in a 28-lead QFN package as shown in Figure 4 below. Figure 4. Description of the SX1710 Package Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 9 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING Figure 5. Land Pattern Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 10 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING 5. Revision History Table 5 Revision 1 2 Revision History Date May 2013 November 2014 Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Comment Preliminary Datasheet Specification and Application board changes Page 11 www.semtech.com SX1710 DATASHEET WIRELESS SENSING & TIMING © Semtech 2014 All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights. Semtech assumes no responsibility or liability whatsoever for any failure or unexpected operation resulting from misuse, neglect improper installation, repair or improper handling or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified range. SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney fees which could arise. Contact information Semtech Corporation Wireless & Sensing Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111 Fax: (805) 498-3804 E-mail: [email protected] [email protected] Internet: http://www.semtech.com Rev. 2.0 / November 25, 2014 ©2014 Semtech Corporation Page 12 www.semtech.com