RF/IF building blocks for niche handheld devices Compact, highly integrated solutions that deliver proven performance in Unlicensed Part 15 frequencies Smart solutions for standout systems SA6xx RF/IF building blocks NXP’s SA6xx series of RF/IF building blocks are ideal for a variety of niche RF products. Available in small-footprint packages, SA6xx solutions save PCB space while providing better RF performance. Wireless medical monitoring Product highlights Electrical safety SA614A (HXQFN16) } An excellent choice for implementing the ultrasound receivers used in things like arc fault interrupt detectors and fish finders. Sports electronics Niche RF markets Home security SA616 (HVQFN20) } Provides enhanced receiver sensitivity and SINAD performance for applications like two-way radios and wireless medical monitoring. SA636 (HVQFN20) Two-way radios & wireless microphone receivers 2 RF-IF building block } Functions as a low-noise, high-fidelity Appliances & white goods wireless microphone receiver with UHF diversity. A history of RF innovation NXP’s portfolio of highly integrated solutions for low-voltage, battery-operated applications, which includes RF/IF building blocks, user-interface products, and RF discretes, incorporates the best of our industry-leading expertise in wireless technology. Every product in this category reflects the know-how gained from a history of RF innovation in cellular communications, peer-to-peer wireless networking, RFID tags, and high-end manufacturing. The result is a series of RF solutions that bring high integration and superior performance to a wide range of low-voltage, battery-operated wireless applications in Unlicensed Part 15 frequencies. Demo board kits Many of our demo board kits are free in single quantities, so you can turn designs quickly. Others are available for order through various NXP distributors. Free application support We know how vital it is to provide developers with more than just technology. To make design-in as fast and easy as possible, we support all our RF products with ready-made design kits and provide in-depth application support – all absolutely free of charge. For application support visit nxp.com. Wide selection of package options All our RF/IF solutions are available in a wide range of package options that support miniaturization and increase design flexibility. Included in that list are innovative QFN packages that deliver a footprint significantly smaller than a standard SSOP20 or SO16 package. RF-IF building block 3 RF/IF evaluation demo boards 4 SA636DK OM13312 SA602AD + SA604AD OM13535 SA6x6DK OM13531 RF = 110.59MHz; IF 9.8 MHz RF = 45 MHz; IF = 455 kHz RF = 45 MHz; IF = 455 kHz SA616BS OM13532 SA636BS OM13533 SA605DK OM13534 RF = 45 MHz; IF = 455 kHz RF = 240 MHz; IF = 10.7 MHz RF = 45 MHz; IF = 455 kHz RF-IF building block Applications Frequency Unlicensed Part 15 frequency allocations 50 kHz to 600 kHz Ultrasound transducer applications: fish finders, arc fault interrupt detectors 40.66 to 40.70 MHz 27 MHz Radiocontrolled cars and toys FCC Part 15 periodic applications 46 to 49 MHz Baby monitors, wireless microphones 50 and 53 MHz 72 and 75 MHz Model aircraft 72 to 76 MHz Hearing aids 169 to 172 MHz Wireless microphones 901 to 902 MHz 930 to 931 MHz 940 to 941 MHz 902 to 928 MHz ISM bands 260 to 470 MHz FCC Part 15 periodic applications: keyless entry/ OOK, wireless switches (315 MHz in USA, 433.6 MHz in EU), family radio services (462.562 to 467.7125 MHz) 2.4 GHz ISM band Cordless phones, wireless data and security, meter readers, narrowband PCS, HAM radio Cordless phones, wireless data and security, home automation, lowpower PCS, HAM radio Applications by RF-IF device type Type Applications Device Package Low-voltage FM IF systems } } } } Auto-refill water dispensers in refrigerators Fish finders Ultrasound sensor log amps @ 200 kHz Arc fault detectors SA604A SA614A SO16 SO16, HXQFN16 Narrowband/wideband FM RF/ IF receivers } } } } Home security system receivers Car toll readers NFC/RF ID tag receivers Remote keyless entry/OOK receivers SA605 SA615 SSO20, SSOP20 SO20, SSOP20 Narrowband FM RF/IF receivers } Professional two-way radios } Emergency locating receivers in VHF band for GNSS (Global Navigation Satellite System) } Animal tracking receivers and direction finders } Wireless hearing aid receivers SA606 SA616 SSOP20 SSOP20, HVQFN20 Wideband FM RF/IF receivers } } } } Data controllers in Pay TV Wireless keyboard receivers Wireless meter readers Wireless microphone receivers SA636 SA639 SSOP20, HVQFN20 TSSOP24 SPDT switches } SPDT antennas & filter switches SA630 SO8 Mixers with VCO } VCOs (FM & FSK) } RF front-end down converters SA602A SA612A SO8 SO8 RF-IF building block 5 RF transceivers made simple By providing key components for every stage of RF transmission and reception, NXP makes it simple to create a wireless transceiver. The block diagram shows that, in the frontend receiver, our RF/IF components, RF MMICs, and discrete components implement an SPDT switch, an LNA, an RF mixer, and a first LO. In the backend receiver, an RF/IF receiver serves as the second mixer and second LO, and provides the baseband functions for RSSI and recovered audio. In the transmitter, RF MMICs and RF discretes implement the VCO and LPA. To complete the solution, other NXP products, including the microprocessor, UART, and I2C devices, manage the system and perform user-interface functions. Wireless transceiver block diagram 2nd IF filter RF filter RF Input 1st Mixer LNA mixer 1st IF filter 2nd IF filter mixer Demodulator RF/IF Receiver 1st LO 2nd LO SPDT Switch RSSI Receiver data Dual PLL Synthesizer 10-bit ADC Oscillator RF filter Reference Xtal Oscillator LPA External Quad Circuit Low-power MCU Internal or External Flash SPI VCO RF/IF, Mixers, SPDT RF Discretes MMIC LNA, Mixer, VCO(LO) Passive components (Standard Products) Interface Devices Processing SPI bus I2C-bus I2C GPIO I2C LED Controllers I2C LCD Drivers (For User Interface, Keyboard, System Status) UART RS232 Xceiver Program port aaa-012460 6 RF-IF building block RF/IF building blocks: applications Wireless data transceiver for US and European ISM bands 2nd IF filter RF input 902 - 928 MHz (US) 928 MHz (Europe) RF filter LNA SA602AD BGA2022 1st IF filter mixer 2nd IF filter mixer External Quad Circuit Demodulator SA636DK 1st LO 2nd LO RSSI Receiver data Squelch SA630D Dual PLL Synthesizer Comparator Comparator in out Oscillator Low-power CPU Reference Xtal oscillator RF filter PA 8-bit ADC Data out LPC916 with Internal Flash SPI-bus SPI I 2C UART I2C-bus RS232 User interface Xceiver Program port Keyboard LED display aaa-012466 Family Radio Services Walkie-talkie 455 kHz 2nd IF filter BGA2003 RF input 462 - 467 MHz Rx/Tx LNA RF filter 21.4 MHz SA612AD/01 1st IF filter mixer mixer Demodulator 1st LO: Varicaps SPDT Switch BAP64-04/05 BB133 BB179 SA616DK 2nd LO 20.945 MHz RSSI Recovered audio and data Mute control 440 - 446 MHz Dual PLL Synthesizer RF filter Reference Xtal oscillator BLT50 PA SPI-bus VCO: PBA251 BB133 BB179 External Quad Circuit Comparator in Oscillator Comparator out 8-bit ADC Low-power CPU LPC916 Speaker amp TDA8541T/N1 Data out with Internal Flash SPI I2C Microphone amp. SA5232D I2C-bus User interface Keyboard LED display aaa-012463 RF-IF building block 7 RF/IF building blocks: applications Wireless data transceiver for 2.4GHz and 900MHz ISM band 10.7 MHz 2nd IF filter 2nd IF filter 110.59 MHz RF filter RF input 2.4 - 2.5 GHz 902 - 928 MHz BGA2003 LNA BGA2022 1st IF filter mixer 2nd mixer Demodulator 1st LO SPDT Switch BAP51-02 SPDT Switch BAP51-02 VCO Murata VCO SA636DK 2nd LO 99.89 MHz BGA6582 PA BGA2716 SPI-bus LPA Antenna switch control Squelch Comparator out Recovered data RxData in 8-bit ADC Low-power CPU SPI Reference Xtal Oscillator/modulator T/Pt control RSSI Comparator in Dual PLL Synthesizer RF filter External Quad Circuit TxData out P89LPC916 with Internal Flash I2C I2C-bus UART User interface T/Pt control Keyboard LED display Antenna switch control Program port aaa-012461 OOK transmitter using PLL Synthesizer/Exciter oscillator RF output 315 MHz (US) 434 MHz (Europe) RF filter PLL synthesizer PLL Synthesizer BGA6589 PA SA602AD Exciter/ VCO Reference Xtal Oscillator SPI bus Oscillator Low-power CPU LPC916 SPI with internal Flash Data I2C User interface UART RS232 Xceiver Program port aaa-012469 8 RF-IF building block RF/IF building blocks: applications OOK receiver using SAW oscillator Antenna 315 MHz (US) 433.6 MHz (Europe) SA636DK mixer Demodulator RSSI output Data output SAW oscillator OOK output Logic device LPC901 aaa-012467 UHF receiver for remote control 21.4 MHz crystal filters RF input 315 MHz (US) 434 MHz (Europe) RF filter mixer Demodulator External Quad Circuit SA636DK SA639DH RSSI Receiver data LO Squelch PLL Synthesizer Comparator in Oscillator 8-bit ADC Low-power CPU Reference Xtal Oscillator Data out LPC916 with Internal Flash SPI SPI bus Comparator out I2C UART aaa-012468 RF-IF building block 9 RF/IF building blocks: applications The SA614A in an arc fault detector V = +3.3 V V = +5 V *Solar Panel String Array 1:100 Matching Network SA614AHR w/ *RSSI Out * Received Signal Strength indicator Peak Detector ADC 16 bit 250 kSPS FFT (DSP) MCU System and Safety Controls UART AND I/O Filtering aaa-012470 The SA604A in a fish finder Ultra Sound TX Driver US Transducer f = 50 - 500 kHz US Sensor f = 50 - 500 kHz Ultra Sound RX Matching Network V = +5 V V = +3.3 V SA604AD *RSSI Out * Received Signal Strength indicator ADC FFT (DSP) Microcontroller UART AND I/O Filtering aaa-012471 10 RF-IF building block RF/IF building blocks: selector guide Frequency range Device Description SA602A, SA612A LNA, mixer, and 1 GHz oscillator SA606, SA616 Narrowband FM IF receiver with 150 MHz audio and RSSI op amps Bandwidth Voltage (V) Package Applications 500 MHz RF 4.5 to 8.0 SO8 } } } } Transmitters Wireless meter readers Wireless local loops Police, fire radios } } } } } } } } } Portable cellular radio FM IF Cordless phones Wireless systems RF level meters Spectrum analyzers Instrumentation FSK and ASK data receivers Log amps Portable high-performance communication receivers } } } } } } } } } } } } Secure garage-door openers Fish finders Ultrasound receivers Arc fault detectors Cellular radio FM IF High-performance communications receivers Single-conversion VHF/UHF receivers RF level meters Spectrum analyzers Instrumentation FSK and ASK data receivers Log amps DECT cordless telephones Digital cordless telephones Digital cellular telephones Portable high-performance communications receivers Single-conversion VHF/UHF receivers FSK and ASK data receivers Wireless LANs Patient monitoring systems Set-top boxes DECT cordless phones FSK and ASK data receivers 150 MHz RF, 2 MHz narrowband IF 2.7 to 5.5 SSOP20, SO20, HVQFN20 FM IF system SA604A, SA614A for 455 kHz and 10.7 MHz FM IF 1 GHz 25 MHz IF 4.5 to 8.0 SO16, HXQFN16 SA605, SA615 Highperformance mixer and FM IF system for 455 kHz and 10.7 MHz FM IF 1 GHz 500 MHz RF, 25 MHz IF 4.5 to 8.0 S020, SSOP20 SA636 Highperformance mixer and wideband FM IF system with fast RSSI and power-down mode 500 MHz 500 MHz RF, 25 MHz wideband IF 2.7 to 5.5 SSOP20, HVQFN20 } } } } } } } SA639 Mixer and FM IF system with fast RSSI, power-down mode, postdetector- filter amplifier, and programmable data switch 500 MHz 500 MHz RF, 25 MHz wideband IF 2.7 to 5.5 TSSOP24 } } } } SA630 Single-pole, double-throw (SPDT) switch 1 GHz 1 GHz 3.0 to 5.0 S08 } Antenna switches for a variety of wireless applications } Set-top boxes RF-IF building block 11 RF/IF building blocks: specifications Wideband RF/IF specifications Device SA602A SA612A VCC range (V) 4.5 to 8.0 12 dB SINAD IF BW (MHz) * Data Rate (Mbps) RSSI dynamic range (typ) (dB) RSSI 1 RFin @ -118 dBm (Vdc) RSSI 2 RFin @ -68 dBm (Vdc) RSSI 3 RFin @ -18 dBm (Vdc) Audio & data pins Powerdown mode 12 n/a n/a n/a n/a n/a n/a n/a n/a No 11 n/a n/a n/a n/a n/a n/a n/a n/a No 0.0 min; 0.16 typ; 0.65 max 1.9 min; 2.65 typ; 3.1 max 4.0 min; 4.85 typ; 5.6 max Yes No 0.0 min; 0.16 typ; 0.80 max 1.9 min; 2.5 typ; 3.3 max 3.6 min; 4.8 typ; 5.8 max 0.0 min; 0.16 typ; 0.65 max 1.9 min; 2.5 typ; 3.1 max 4.0 min; 4.8 typ; 5.6 max Yes No Mixer ICC (max) Gain (mA) (dB) 2.4 @ 6 V 2.7 @ 6V n/a SA604A 3.3@ 6V n/a SA614A SA605 12 4.5 to 8.0 5.7 @ 6 V SA615 SA636 SA639 11 2.7 to 5.5 2.7 to 5.5 6.5 @ 3 V 8.3 @ 3 V -120 dBm / 0.22 μV RF: 45 MHz IF: 455 kHz Tone: 1 kHz Deviation: 8 kHz -120 dBm / 0.22 μV RF: 45 MHz IF: 455 kHz Tone: 1 kHz Deviation: 8 kHz 25 1.5 90 25 1.5 80 25 25 10 -111 dBm / 0.54 μV RF: 240 MHz 25 IF: 10.7 kHz Tone: 1 kHz Deviation: 125 kHz 10 -111 dBm / 0.54 μV RF: 110.592 MHz IF: 9.8 kHz Tone: 576 kHz Deviation: 288 kHz 25 1.5 1.5 1.2 2.0 90 80 0.0 min; 0.16 typ; 0.80 max 1.9 min; 2.5 typ; 3.3 max 3.6 min; 4.8 typ; 5.8 max 90 0.0 min; 0.20 typ; 0.50 max 0.3 min; 0.6 typ; 1.0 max RFin @ -10 dBm 0.9 min; 1,3 typ; 1.8 max No Yes 90 RFin @ -118 dBm 0.0 min; 0.40 typ; 0.75 max RFin @ -45 dBm 0.5 min; 0.9 typ; 1.3 max RFin @ -10 dBm 0.8 min; 1.2 typ; 1.6max No Yes * Approximate maximum data rate. With some modifications, higher data rates are possible. 12 RF-IF building block RF/IF building blocks: specifications Narrowband RF/IF specifications Device SA606 SA616 ICC (max) (mA) 4.2 5.0 VCC range (V) 2.7 to 6.0 2.7 to 6.0 Mixer gain (dB) 12 dB SINAD IF BW (MHz) RSSI dynamic range (typ) (dB) RSSI 1 RFin @ -118 dBm (Vdc) RSSI 2 RFin @ 68 dBm (Vdc) RSSI 3 RFin @ -23 dBm (Vdc) 13.5 to 19.5 -117 dBm / 0.32 μV RF: 45 MHz IF: 455 kHz Tone: 1 kHz Deviation: 8 kHz 2 90 0.3 typ, 0.8 max 0.7 min to 1.8 max 1.2 min to 2.5 max 11 min -117 dBm / 0.32 μV RF: 45 MHz IF: 455 kHz Tone: 1 kHz Deviation: 8 kHz 2 80 0.3 typ, 0.8 max 0.7 min to 2.0 max 1.0 min to 2.5 max RF-IF building block 13 RF glossary DBM – double-balanced mixer A special circuit that outputs sum and difference signals while minimizing the RF and LO signals. Down conversion Conversion of the RF or IF frequency to a lower IF frequency. FCC Unlicensed Part 15 Federal Communication Commission Standard under Title 47 for unlicensed user operation of low power RF equipment FM – frequency modulation A method of data encoding where the RF signal is changed in frequency by the modulating signal (e.g. voice, data). FM receiver Uses a limiting IF and a quadrature demodulator to recover the modulating signal. IF – intermediate frequency A frequency lower than the RF frequency and generally the frequency at which demodulation/modulation is performed. Image frequency An unwanted RF frequency at the mixer input that gives the same IF frequency at the mixer output as the desired RF frequency. LO – local oscillator Derived from an external active device or an on-chip transistor oscillator. 14 RF-IF building block NBFM – narrowband FM Used in voice and low-speed data (< 9.6 kbps). Quadrature demodulator Used to recover the modulating signal while minimizing the IF signal. RF – radio frequency The carrier frequency or the frequency of the propagation media (e.g. air, cable, wireline, etc.). Selectivity The ability of a receiver to pass the desired frequency and reject all others. Sensitivity The minimum input signal required for a receiver to deliver an acceptable output. Single/dual conversion Single-conversion receivers down-convert to one IF. Dual-conversion receivers down-convert twice, to two different IFs, to enable better filtering of image frequencies. Up conversion Conversion of the IF frequency to a higher IF or RF frequency. WBFM – wideband FM Used in broadcast radio and high-speed data (>10 kbps). Notes RF-IF building block 15 www.nxp.com © 2014 NXP Semiconductors N.V. 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. Date of release: August 2014 Document order number: 9397 750 17548 Printed in the Netherlands