RF/IF Building Blocks

Home , 500 kHz

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

NICHE RF MARKETS SA6xx RF/IF building blocks

NXP’s SA6xx series of RF/IF building blocks are ideal for Wireless Electrical medical safety a variety of niche RF products. Available in small-footprint monitoring packages, SA6xx solutions save PCB space while providing better RF performance.

Product highlights Sports Niche RF Home SA614AHR (HXQFN16) electronics markets security An excellent choice for implementing the ultrasound receivers used in things like arc fault interrupt detectors and fish finders.

SA616BS (HVQFN20) Two-way radios & wireless Appliances & Provides enhanced receiver sensitivity and SINAD performance microphone white goods for applications like two-way radios and wireless medical receivers monitoring.

SA636BS (HVQFN20) Functions as a low-noise, high-fidelity wireless microphone receiver with UHF diversity.

2 A history of RF innovation

NXP’s portfolio of highly integrated solutions for low-voltage, Wide selection of package options battery-operated applications, which includes RF/IF building All our RF/IF solutions are available in a wide range of package blocks, user-interface products, and RF discretes, incorporates options that support miniaturization and increase design the best of our industry-leading expertise in wireless flexibility. Included in that list are innovative QFN packages technology. that deliver a footprint significantly smaller than a standard SSOP20 or SO16 package. Every product in this category reflects the know-how gained from a history of RF innovation in cellular communications, Demo board kits peer-to-peer wireless networking, RFID tags, and high-end manufacturing. 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. 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 Free application support frequencies. 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.

3 RF/IF evaluation demo boards

SA636DK OM13312 SA602AD + SA604AD OM13535 SA6X6DK OM13531 RF = 110.59 MHz; 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

SA614AHR OM13530 SA639DH OM13536 SA630D OM13537 IF = 10.7 MHZ RF = 110 MHZ; IF = 9.8 MHZ RF = 1 GHZ

4 Unlicensed Part 15 frequency allocations 50 kHz to 27 MHz 40.66 to 46 to 50 and 72 to 169 to 260 to 901 to 902 MHz 2.4 GHz ISM 600 kHz 40.70 MHz 49 MHz 53 MHz 76 MHz 172 MHz 470 MHz 930 to 931 MHz band 72 and 940 to 941 MHz 75 MHz 902 to 928 MHz

Frequency ISM bands Ultrasound Radio- FCC Part Baby Model Hearing Wireless FCC Part 15 periodic Cordless phones, Cordless transducer controlled 15 periodic monitors, aircraft aids microphones applications: keyless wireless data phones, wireless applications: cars and applications wireless entry/OOK, wireless and security, data and fish finders, toys microphones switches (315 MHz meter readers, security, home arc fault in USA, 433.6 MHz narrowband PCS, automation, interrupt in EU), family radio HAM radio low- power PCS, detectors services (462.562 to HAM radio

Applications 467.7125 MHz)

Applications by RF-IF device type Type Applications Device Package Low-voltage FM IF systems • Auto-refill water dispensers in refrigerators SA604A SO16, HXQFN16 • Fish finders SA614A SO16, HXQFN16 • Ultrasound sensor log amps @ 200 kHz • Arc fault detectors Narrowband/wideband FM • Home security system receivers SA605 SO20, SSOP2 RF/ IF receivers • Car toll readers SA615 • NFC/RF ID tag receivers • Remote keyless entry/OOK receivers Narrowband FM RF/IF • Professional two-way radios SA606 SSOP20 receivers • Emergency locating receivers in VHF band for GNSS (Global SA616 SSOP20, HVQFN20 Navigation Satellite System) • Animal tracking receivers and direction finders • Wireless hearing aid receivers Wideband FM RF/IF • Data controllers in Pay TV SA636 SSOP20, HVQFN20 receivers • Wireless keyboard receivers SA639 TSSOP24 • Wireless meter readers • Wireless microphone receivers SPDT switches • SPDT antennas & filter switches SA630 SO8 Mixers with VCO • VCOs (FM & FSK) SA602A SO8 • RF front-end down converters SA612A

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 TRANSCEIVER BLOCK DIAGRAM BLOCK DIAGRAM

2nd IF filter 2nd IF filter

1st Mixer RF 1st IF filter LNA mixer filter mixer RF External Quad Input Demodulator Circuit

RF/IF Receiver 1st LO

nd SPDT 2 LO RSSI Receiver Switch data Dual PLL Synthesizer 10-bit Oscillator ADC RF Reference Low-power MCU Xtal Oscillator filter LPA Internal or External Flash SPI 2 VCO SPI bus I C-bus UART

RF/IF, Mixers, SPDT I2C GPIO RF Discretes MMIC LNA, Mixer, VCO(LO) I2C LED Controllers Passive components (Standard Products) I2C LCD Drivers (For User Interface, Interface Devices Program Keyboard, System Status) RS232 port Processing Xceiver

6 RF/IF building blocks: applications

WIRELESSWIRELESS DATA TRANSCEIVERDATA TRANSCEIVER FOR 2.4 GHZ AND FOR 900 US MHZ AND ISM BANDEUROPEAN ISM BANDS

2nd IF filter 2nd IF filter

SA602AD RF BGA2022 1st IF filter LNA mixer filter mixer RF input External 902 - 928 MHz (US) Demodulator Quad 928 MHz (Europe) Circuit

SA636BS 1st LO 2nd LO RSSI Receiver data

SA630D Squelch

Dual PLL Synthesizer Comparator Comparator 8-bit ADC in out Oscillator Reference Xtal Low-power CPU oscillator RF LPC916 Data out filter PA with Internal Flash SPI-bus SPI I2C UART

I2C-bus

User interface RS232 Program Xceiver port Keyboard LED display

FAMILYFAMILY RADIO RADIO SERVICES SERVICES WALKIE-TALKIE WALKIE-TALKIE

455 kHz 2nd IF filter

21.4 MHz SA612AD/01 BGA2003 RF 1st IF LNA filter mixer filter mixer RF input External 462 - 467 MHz Demodulator Quad Rx/Tx Circuit

1st LO: SA616BS Varicaps SPDT 2nd LO 20.945 MHz RSSI Recovered audio and data Switch BB133 BAP64-04/05 BB179

440 - 446 MHz Mute control Speaker amp Dual PLL Synthesizer TDA8541T/N1 Comparator Comparator 8-bit ADC in out Reference Xtal RF BLT50 oscillator Low-power CPU filter PA Oscillator LPC916 Data out with Internal Flash SPI-bus VCO: SPI PBA251 I2C BB133 BB179 I2C-bus Microphone amp. SA5232D User interface

Keyboard LED display

7 RF/IF building blocks: applications

WIRELESS DATA DATATRANSCEIVER TRANSCEIVER FOR US AND EUROPEAN FOR 2.4 ISM GHZ BANDS AND 900 MHZ ISM BAND

10.7 MHz 2nd IF filter 2nd IF filter

110.59 MHz

RF BGA2003 BGA2022 1st IF filter LNA mixer filter 2nd mixer RF input External 2.4 - 2.5 GHz Demodulator Quad 902 - 928 MHz Circuit 1st LO VCO Murata SA636BS VCO SPDT SPDT 2nd LO 99.89 MHz RSSI Recovered data Switch Switch Squelch BAP51-02 BAP51-02

Dual PLL Synthesizer Comparator Comparator RxData in in out 8-bit ADC RF BGA6582 BGA2716 SPI-bus filter PA LPA Low-power CPU Reference Xtal SPI Oscillator/modulator P89LPC916 TxData out with Internal Flash Antenna T/Pt I2C switch control I2C-bus UART control

Program port User interface T/Pt Antenna control switch Keyboard control LED display

OOK TRANSMITTER TRANSMITTER USING PLL USING SYNTHESIZER/EXCITER PLL SYNTHESIZER/EXCITER OSCILLATOR OSCILLATOR

RF output 315 MHz (US) PLL synthesizer 434 MHz (Europe) PLL Synthesizer

BGA6589 Oscillator SA602AD Reference RF filter PA Low-power CPU Xtal Oscillator LPC916 Exciter/ with internal Flash VCO SPI bus SPI Data I2C UART

User RS232 Program interface Xceiver port

8 RF/IF building blocks: applications

OOK RECEIVER RECEIVER USING SAWUSING OSCILLATOR SAW OSCILLATOR

Antenna 315 MHz (US) 433.6 MHz (Europe)

mixer SA636BS Demodulator

RSSI output

Data output SAW oscillator

OOK output Logic device LPC901

UHF RECEIVER RECEIVER FOR REMOTE FOR CONTROLREMOTE CONTROL

RF input 21.4 MHz crystal filters 315 MHz (US) 434 MHz (Europe)

RF filter mixer External Quad Demodulator Circuit SA636BS SA639DH RSSI Receiver data LO

Squelch

PLL Synthesizer Comparator in Comparator out 8-bit Oscillator ADC Reference Low-power CPU Xtal Oscillator LPC916 Data out with Internal Flash SPI SPI bus I2C UART

9 RF/IF building blocks: applications THE SA614A IN AN ARC FAULT DETECTOR

THE SA614A IN AN ARC FAULT DETECTOR

V = +5 V V = +3.3 V

1:100 *Solar Matching SA614AHR Peak ADC 16 bit FFT Panel String Network w/ *RSSI Detector 250 kSPS (DSP) Array Out * Received Signal MCU Strength indicator System UART and Safety Filtering AND I/O Controls

THE SA604A SA604A IN A FISHIN A FINDER FISH FINDER

Ultra Sound TX Driver

US Transducer US Sensor f = 50 - 500 kHz f = 50 - 500 kHz V = +5 V V = +3.3 V Ultra Sound SA604HR RX Matching *RSSI Out Network FFT ADC * Received Signal (DSP) Strength indicator Microcontroller

UART Filtering AND I/O

10 RF/IF building blocks: selector guide

RF/IF building blocks: selector guide Device Description Frequency Bandwidth Voltage Package Applications range (V) SA602A, SA612A LNA, mixer, and oscillator 1 GHz 500 MHz RF 4.5 to 8.0 SO8 • Transmitters • Wireless meter readers • Wireless local loops • Police, fire radios SA606, SA616 Narrowband FM IF 150 MHz 150 MHz RF, 2.7 to 5.5 SSOP20, • Portable cellular radio FM IF receiver with audio and 2 MHz SO20, • Cordless phones RSSI op amps narrowband IF HVQFN20 • Wireless systems • RF level meters • Spectrum analyzers • Instrumentation • FSK and ASK data receivers • Log amps • Portable high-performance communication receivers SA604A, SA614A FM IF system for 455 kHz 1 GHz 25 MHz IF 4.5 to 8.0 SO16, • Secure garage-door openers and 10.7 MHz FM IF HXQFN16 • Fish finders • Ultrasound receivers SA605, SA615 High- performance mixer 1 GHz 500 MHz RF, 4.5 to 8.0 SO20, • Arc fault detectors and FM IF system for 455 25 MHz IF SSOP20 • Cellular radio FM IF kHz and 10.7 MHz FM IF • High-performance communications receivers • Single-conversion VHF/UHF receivers • RF level meters • Spectrum analyzers • Instrumentation • FSK and ASK data receivers • Log amps SA636 High- performance mixer 500 MHz 500 MHz RF, 2.7 to 5.5 SSOP20, • DECT cordless telephones and wideband FM IF 25 MHz HVQFN20 • Digital cordless telephones system with fast RSSI and wideband IF • Digital cellular telephones power-down mode • Portable high-performance communications receivers • Single-conversion VHF/UHF receivers • FSK and ASK data receivers • Wireless LANs SA639 Mixer and FM IF system 500 MHz 500 MHz RF, 2.7 to 5.5 TSSOP24 • Patient monitoring systems with fast RSSI, power- 25 MHz • Set-top boxes down mode, post- wideband IF • DECT cordless phones detector- filter amplifier, • FSK and ASK data receivers and programmable data switch SA630 Single-pole, double-throw 1 GHz 1 GHz 3.0 to 5.0 SO8 • Antenna switches for a variety of wireless applications (SPDT) switch • Set-top boxes

11 RF/IFRF/IF Building building Blocks: blocks: Applications specifications

Wideband RF/IF specifications Device VCC ICC (max) Mixer 12 dB SINAD IF BW *Data RSSI RSSI 1 RFin RSSI 2 RFin RSSI 3 RFin Audio Power- range (mA) Gain (MHz) Rate dynamic @ -118 dBm @ -68 dBm @ -18 dBm & down (V) (dB) (Mbps) range (Vdc) (Vdc) (Vdc) data mode (typ) (dB) pins SA602A 4.5 to 2.4 @ 6 V 12 n/a n/a n/a n/a n/a n/a n/a n/a No 8.0 SA612A 4.5 to 2.7 @ 6V 11 n/a n/a n/a n/a n/a n/a n/a n/a No 8.0 SA604A 4.5 to 3.3@ 6V n/a -120 dBm / 0.22 μV 25 1.5 90 0.0 min; 0.16 1.9 min; 4.0 min; Yes No 8.0 RF: 45 MHz IF: 455 typ; 0.65 max 2.65 typ; 4.85 typ; kHz Tone: 1 kHz 3.1 max 5.6 max Deviation: 8 kHz SA614A 4.5 to 3.3@ 6V n/a -120 dBm / 0.22 μV 25 1.5 80 0.0 min; 0.16 1.9 min; 3.6 min; Yes No 8.0 RF: 45 MHz IF: 455 typ; 0.65 max 2.5 typ; 3.3 4.8 typ; 5.8 kHz Tone: 1 kHz max max Deviation: 8 kHz SA605 4.5 to 5.7 @ 6 V 12 -120 dBm / 0.22 μV 25 1.5 90 0.0 min; 0.16 1.9 min; 4.0 min; Yes No 8.0 11 RF: 45 MHz IF: 455 typ; 0.65 max 2.5 typ; 3.1 4.8 typ; 5.6 kHz Tone: 1 kHz max max Deviation: 8 kHz SA615 4.5 to 5.7 @ 6 V 12 -120 dBm / 0.22 μV 25 1.5 80 0.0 min; 0.16 1.9 min; 3.6 min; Yes No 8.0 11 RF: 45 MHz IF: 455 typ; 0.80 max 2.5 typ; 3.3 4.8 typ; 5.8 kHz Tone: 1 kHz max max Deviation: 8 kHz SA636 2.7 to 6.5 @ 3 V 10 -111 dBm / 0.54 25 1.2 90 0.0 min; 0.20 0.3 min; RFin @ -10 No Yes 5.5 μV RF: 240 MHz typ; 0.50 max 0.6 typ; 1.0 dBm 0.9 IF: 10.7 kHz Tone: max min; 1,3 typ; 1 kHz Deviation: 1.8 max 125 kHz SA639 2.7 to 8.3 @ 3 V 10 -111 dBm / 0.54 μV 25 2.0 90 RFin @ -118 RFin @ -45 RFin @ -10 No Yes 5.5 RF: 110.592 MHz dBm 0.0 min; dBm 0.5 dBm 0.8 IF: 9.8 kHz Tone: 0.40 typ; 0.75 min; 0.9 typ; min; 1.2 typ; 576 kHz Devia- tion: max 1.3 max 1.6max 288 kHz * Approximate maximum data rate. With some modifications, higher data rates are possible.

12 RF/IF building blocks: specifications

Narrowband RF/IF specifications Device VCC range ICC (max) Mixer gain 12 dB SINAD IF BW RSSI dynamic RSSI 1 RFin @ RSSI 2 RFin RSSI 3 RFin @ (V) (mA) (dB) (MHz) range (typ) -118 dBm (Vdc) @ 68 dBm -23 dBm (Vdc) (dB) (Vdc) SA606 2.7 to 6.0 4.2 13.5 to 19.5 -117 dBm / 0.32 μV 2 90 0.3 typ, 0.8 max 0.7 min to 1.8 1.2 min to 2.5 RF: 45 MHz IF: 455 max max kHz Tone: 1 kHz Deviation: 8 kHz SA616 2.7 to 6.0 5.0 11 min -117 dBm / 0.32 μV 2 80 0.3 typ, 0.8 max 0.7 min to 2.0 1.0 min to 2.5 RF: 45 MHz IF: 455 max max kHz Tone: 1 kHz Deviation: 8 kHz

13 RF/IFRF/IFRF glossaryBuilding Building Blocks: Blocks: Applications Specifications

DBM – double-balanced mixer RF – radio frequency A special circuit that outputs sum and difference signals while The carrier frequency or the frequency of the propagation minimizing the RF and LO signals. media (e.g. air, cable, wireline, etc.).

Down conversion Selectivity Conversion of the RF or IF frequency to a lower IF frequency. The ability of a receiver to pass the desired frequency and reject all others. FCC Unlicensed Part 15 Federal Communication Commission Standard under Title 47 Sensitivity for unlicensed user operation of low power RF equipment The minimum input signal required for a receiver to deliver an acceptable output. FM – frequency modulation A method of data encoding where the RF signal is changed in Single/dual conversion frequency by the modulating signal (e.g. voice, data). Single-conversion receivers down-convert to one IF. Dual- conversion receivers down-convert twice, to two different IFs, FM receiver to enable better filtering of image frequencies. Uses a limiting IF and a quadrature demodulator to recover the modulating signal. Up conversion Conversion of the IF frequency to a higher IF or RF frequency. IF – intermediate frequency A frequency lower than the RF frequency and generally the WBFM – wideband FM frequency at which demodulation/modulation is performed. Used in broadcast radio and high-speed data (>10 kbps).

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.

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.

14 Notes

15 Available Resources

BlueBox 2.0For more information please visit nxp.com/BlueBox nxp.com/NADK nxp.com/BlueBoxBSP

www.nxp.com

Document number: RFIFBLDGBLXBR REV 1 Date of release: October 2018