AX5043 Data Sheet.pdf

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Overview

Features

Applications

Block Diagram

Pin Function Descriptions

Pinout Drawing

Specifications

Absolute Maximum Ratings

DC Characteristics

Supplies

Logic

AC Characteristics

Crystal Oscillator

Low-power Oscillator

RF Frequency Generation Subsystem (Synthesizer)

Transmitter

Receiver

SPI Timing

Wire Mode Interface Timing

General Purpose ADC (GPADC)

Circuit Description

Voltage Regulators

Crystal Oscillator

Low Power Oscillator and Wake on Radio (WOR) Mode

GPIO Pins

SYSCLK Output

Power-on-reset (POR)

RF Frequency Generation Subsystem

VCO

VCO Auto-Ranging

Loop Filter and Charge Pump

Registers

RF Input and Output Stage (ANTP/ANTN/ANTP1)

LNA

Digital IF Channel Filter and Demodulator

Registers

Encoder

Framing and FIFO

Packet Modes

RAW Modes

RX AGC and RSSI

Modulator

Automatic Frequency Control (AFC)

PWRMODE Register

Serial Peripheral Interface (SPI)

SPI Timing

Wire Mode Interface

Wire Mode Timing

General Purpose ADC (GPADC)

 DAC

Control Register Map

Application Information

Typical Application Diagrams

Match to 50 Ohm for differential antenna pins (868/915/433/1

Match to 50 Ohm for single-ended antenna pin (868/915/433 TX

Match to 50 Ohm for single-ended antenna pin (169 MHz TX ope

Using a Dipole Antenna and the internal TX/RX Switch

Using a single-ended Antenna and the internal TX/RX Switch

Using an external high-power PA and an external TX/RX Switch

Using the single-ended PA

Using two Antenna

Using an external VCO inductor

Using an external VCO

Using a TCXO

QFN28 Package Information

Package Outline QFN28

QFN28 Soldering Profile

QFN28 Recommended Pad Layout

Assembly Process

Stencil Design & Solder Paste Application

Life Support Applications

Contact Information

DATASHEET AX5043 Advanced high performance ASK and FSK narrow-band transceiver for 70-1050 MHz range Version 1.7

2 Document Type Datasheet Document Status Document Version Version 1.7 Product AX5043 Version 1.7 Datasheet AX5043

Table of Contents 3 Table of Contents 1. Overview..................................................................................................... 6 1.1. Features ..................................................................................................... 6 1.2. Applications................................................................................................. 7 2. Block Diagram............................................................................................. 8 3. Pin Function Descriptions ........................................................................... 9 3.1. Pinout Drawing .......................................................................................... 10 4. Specifications............................................................................................ 11 4.1. Absolute Maximum Ratings .......................................................................... 11 4.2. DC Characteristics ...................................................................................... 12 Supplies .................................................................................................... 12 Logic......................................................................................................... 14 4.3. AC Characteristics ...................................................................................... 15 Crystal Oscillator ........................................................................................ 15 Low-power Oscillator ................................................................................... 15 RF Frequency Generation Subsystem (Synthesizer) ......................................... 16 Transmitter................................................................................................ 19 Receiver .................................................................................................... 20 SPI Timing................................................................................................. 21 Wire Mode Interface Timing.......................................................................... 22 General Purpose ADC (GPADC) ..................................................................... 22 5. Circuit Description .................................................................................... 23 5.1. Voltage Regulators ..................................................................................... 24 5.2. Crystal Oscillator ........................................................................................ 25 5.3. Low Power Oscillator and Wake on Radio (WOR) Mode..................................... 25 5.4. GPIO Pins.................................................................................................. 26 5.5. SYSCLK Output .......................................................................................... 26 Version 1.7 Datasheet AX5043

4 Table of Contents 5.6. Power-on-reset (POR) ................................................................................. 27 5.7. RF Frequency Generation Subsystem............................................................. 27 VCO.......................................................................................................... 27 VCO Auto-Ranging ...................................................................................... 28 Loop Filter and Charge Pump........................................................................ 28 Registers ................................................................................................... 29 5.8. RF Input and Output Stage (ANTP/ANTN/ANTP1) ............................................ 30 LNA .......................................................................................................... 30 PA ............................................................................................................ 30 5.9. Digital IF Channel Filter and Demodulator ...................................................... 31 Registers ................................................................................................... 31 5.10. 5.11. Encoder ............................................................................................. 32 Framing and FIFO ............................................................................... 32 Packet Modes ............................................................................................. 33 RAW Modes................................................................................................ 34 5.12. 5.13. 5.14. 5.15. 5.16. RX AGC and RSSI................................................................................ 34 Modulator .......................................................................................... 35 Automatic Frequency Control (AFC) ....................................................... 35 PWRMODE Register ............................................................................. 36 Serial Peripheral Interface (SPI) ............................................................ 38 SPI Timing................................................................................................. 39 5.17. Wire Mode Interface ............................................................................ 40 Wire Mode Timing ....................................................................................... 40 General Purpose ADC (GPADC) ..................................................................... 41 Σ∆ DAC...................................................................................................... 41 6. Register Bank Description......................................................................... 42 6.1. Control Register Map................................................................................... 43 7. Application Information ............................................................................ 55 7.1. Typical Application Diagrams........................................................................ 55 Version 1.7 Datasheet AX5043

Table of Contents 5 Match to 50 Ohm for differential antenna pins (868/915/433/169 MHz RX/TX operation) ................................................................................................. 55 Match to 50 Ohm for single-ended antenna pin (868/915/433 TX operation) ....... 56 Match to 50 Ohm for single-ended antenna pin (169 MHz TX operation) ............. 57 Using a Dipole Antenna and the internal TX/RX Switch ..................................... 58 Using a single-ended Antenna and the internal TX/RX Switch ............................ 59 Using an external high-power PA and an external TX/RX Switch ........................ 60 Using the single-ended PA............................................................................ 61 Using two Antenna...................................................................................... 62 Using an external VCO inductor .................................................................... 63 Using an external VCO................................................................................. 64 Using a TCXO ............................................................................................. 65 8. QFN28 Package Information ..................................................................... 66 8.1. Package Outline QFN28 ............................................................................... 66 8.2. QFN28 Soldering Profile............................................................................... 67 8.3. QFN28 Recommended Pad Layout................................................................. 68 8.4. Assembly Process ....................................................................................... 68 Stencil Design & Solder Paste Application ....................................................... 68 9. Life Support Applications .......................................................................... 70 10. Contact Information.................................................................................. 71 Version 1.7 Datasheet AX5043

6 Overview 1. Overview 1.1. Features Advanced multi-channel narrow- band single chip UHF transceiver (FSK/MSK/4-FSK/GFSK/GMSK/ ASK/AFSK/FM) Low-Power • RX 9.5 mA @ 868 MHz • RX 6.5 mA @ 169 MHz • • • TX 8 mA @ 0 dBm, 22 mA @ 10 dBm, 54 mA @ 15 dBm 50 nA deep sleep current 500 nA power-down current with low frequency duty cycle clock running Extended supply voltage range • 1.8 V - 3.6 V single supply High sensitivity / High selectivity receiver • Data rates from 0.5 kbps to 115.2 kbps • Optional Forward Error Correction (FEC) • • Sensitivity without FEC –126 dBm @ 1.2 kbps, 868 MHz, FSK –116 dBm @ 10 kbps, 868 MHz, FSK –105 dBm @ 100 kbps, 868 MHz, FSK Sensitivity with FEC –132 dBm @ 0.6 kbps, 868 MHz, FSK –122 dBm @ 5 kbps, 868 MHz, FSK –111 dBm @ 50 kbps, 868 MHz, FSK • High selectivity receiver with up to 45 dB adjacent channel rejection • 0 dBm maximum input power • > +/- 10% data-rate error tolerance • Support for antenna diversity with external antenna switch • Short preamble modes allow the receiver to work with as little as 16 preamble bits Transmitter • Data-rates from 0.5 kbps to 115.2 kbps • High efficiency, high linearity integrated power amplifier • Power level programmable in 0.5 dB steps from –10 dBm to 15 dBm • GFSK shaping with BT=0.3 or BT=0.5 • Unrestricted power ramp shaping Frequency Generation • Configurable for usage in 70 MHz – 1050 MHz bands • RF carrier frequency and FSK deviation programmable in 1 Hz steps • Ultra fast settling RF frequency synthesizer for low-power consumption • • • Fully integrated RF frequency synthesizer with VCO auto-ranging and band-width boost modes for fast locking Configurable for either fully integrated VCO, internal VCO with external inductor or fully external VCO Configurable for either fully integrated or external synthesizer loop filter for a large range of bandwidths • Channel hopping up to 2000 hops/s • Automatic frequency control (AFC) Flexible antenna interface • Integrated RX/TX switching with differential antenna pins • Mode with differential RX pins and single-ended TX pin for usage with external Pas and for maximum PA efficiency at low output power Wakeup-on-Radio • 640 Hz or 10 kHz lowest power wake- up timer • Wake-up time programmable between 98 µs and 102 s Sophisticated radio controller • Antenna diversity and optional external RX/TX switch control • Fully automatic packet reception and transmission without micro-controller intervention • Supports HDLC, Raw, Wireless M-Bus frames and arbitrary defined frames • Automatic channel noise level tracking • µs resolution timestamps for exact timing (e.g. for frequency hopping systems) Version 1.7 Datasheet AX5043

Table of Contents 7 15.245, EN 300 220 V2.3.1 including the narrow-band 12.5 kHz, 20 kHz and 25 kHz definitions. • Security applications • Messaging / paging • Wireless sensors • Wireless M-Bus applications according to EN 13757-4 • 256 Byte micro-programmable FIFO, optionally supports packet sizes > 256 Bytes • 3 matching units for preamble byte, sync-word and address • Ability to store RSSI, frequency offset and data-rate offset with the packet data • Multiple receiver parameter sets allow the use of more aggressive receiver parameters during preamble, dramatically shortening the required preamble length at no sensitivity degradation Advanced Crystal Oscillator • Fast start-up and lowest power steady-state XTAL oscillator for a wide range of crystals • • Integrated crystal tuning capacitors Possibility of applying an external clock reference (TCXO) Miscellaneous features • Few external components • • • SPI microcontroller interface Extended AXSEM register set Fully integrated current/voltage references • QFN28 package Internal power-on-reset Brown-out detection 10 bit 1MS/s General Purpose ADC (GPADC) • • • 1.2. Applications 70 – 1050 MHz licensed and unlicensed radio systems. • AMR • FCC Part 90 6.25 kHz, 12.5 kHz and 25 kHz channel width, FCC Part Version 1.7 Datasheet AX5043

8 Block Diagram 2. Block Diagram 1 C D A P G 2 C D A P G 25 26 AX5043 A T A D K L C D 11 12 Mixer LNA IF Filter & AGC PGAs ANTP ANTN 3 4 ANTP1 5 PA diff PA se ADC AGC Digital IF channel filter De- modulator Modulator n o i t c e r r o C r o r r E d r a w r o F r e d o c n E i g n m a r F r e l l o r t n o C o d a R i t e k c a p d n a g n m i i t g n i l d n a h O F I F FOUT RF Frequency Generation Subsystem RF Output 70 MHz–1GHz FXTAL Divider 13 8 9 10 K L C S Y S T L I F 1 L 2 L Chip configuration POR References Low Power Oscillator 640 Hz/10kHz Communication Controller & Serial Interface Registers Wake on Radio SPI Voltage Regulator 1,7 23 A N A _ D D V O I _ D D V 19 20 21 14 15 16 17 P M A R W P L E S T N A Q R I L E S K L C O S I M I S O M Figure 1 Functional block diagram of the AX5043 Crystal Oscillator typ. 16 MHz 28 P 6 1 K L C 27 N 6 1 K L C Version 1.7 Datasheet AX5043

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