AS3991-DK MICRO

AS3991-DK MICRO Datasheet

AS3990/AS3991

Part	Datasheet
AS3991-DK MICRO	AS3991-DK MICRO (pdf)

Related Parts	Information
AS3990-BQFT	AS3990-BQFT
AS3990-EB FRANK EU	AS3990-EB FRANK EU
AS3991-DK PICO	AS3991-DK PICO
ST25RU3991-BQFM	ST25RU3991-BQFM

PDF Datasheet Preview
AS3990/AS3991 Data Sheet UHF RFID Single Chip Reader EPC Class1 Gen2 Compatible 1 General Description The AS3990/AS3991 UHF reader chip is an integrated analog front end and protocol handling systems for a ISO18000-6C 900MHz RFID reader system. Equipped with built-in programming options, the device is suitable for a wide range of UHF RFID applications. The AS3990/AS3991 includes improved on-board VCO and internal PA. The reader configuration is achieved by selecting the desired protocol in control registers. Direct access to all control registers allows fine tuning of different reader parameters. Parallel or serial interface can be selected for communication between the host system MCU and the reader IC. When hardware coders and decoders are used for transmission and reception, data is transferred via 24 bytes FIFO register. In case of direct transmission or reception, coders and decoders are bypassed and the host system can service the analog front end in real time. The transmitter generates 20dBm output power into 50Ω load and is capable of ASK or PR-ASK modulation. The integrated supply voltage regulators ensure supply rejection of the complete reader system. The transmission system comprises low level data coding. Automatic generation of FrameSync, Preamble, and CRC is supported. The receiver system allows AM and PM demodulation. The receiver also comprises automatic gain control option patent pending and selectable gain and signal bandwidth to cover a range of input link frequency and bit rate options. The signal strength of AM and PM modulation is measured and can be accessed in RSSI register. The receiver output is selectable between digitized subcarrier signal and any of integrated sub-carrier decoders. Selected decoders deliver bit stream and data clock as outputs. The receiver system also comprises framing system. This system performs the CRC check and organizes the data in bytes. Framed data is accessible to the host system through a 24 byte FIFO register. To support external MCU and other circuitry a 3.3V regulated supply and clock outputs are available. The regulated supply has 20mA current capability. The AS3990/AS3991 is available in a 64-pin QFN 9mm x 9mm , ensuring the smallest possible footprint. 2 Key Features ISO18000-6C EPC Gen2 full protocol support ISO18000-6A,B compatibility in direct mode Integrated low level transmission coding Integrated low level decoders Integrated data framing Integrated CRC checking Parallel 8-bit or serial 4-pin SPI interface to MCU using 24 bytes FIFO Voltage range for communication to MCU between 1.8V and 5.5V Selectable clock output for MCU Integrated supply voltage regulator 20mA , which can be used to supply MCU and other external circuitry Integrated supply voltage regulator for the RF output stage, providing rejection to supply noise Internal power amplifier 20dBm for short range applications Modulator using ASK or PR-ASK modulation Adjustable ASK modulation index AM & PM demodulation ensuring no “communication holes” with automatic I/Q selection Built-in reception low-pass and high-pass filters having selectable corner frequencies Selectable reception gain Reception automatic gain control AD converter for measuring TX power using external RF power detector DA converter for controlling external power amplifier Frequency hopping support On-board VCO and PLL covering complete RFID frequency range 840MHz to 960MHz Oscillator using 20MHz crystal Power down, standby and active mode Can be powered by USB with no need for step conversion 3 Applications The device is an ideal solution for UHF RFID reader systems and hand-held UHF RFID readers. 1 - 51 AS3990/AS3991 Data Sheet - Applications Figure Block Diagram 4xC 2xC COMP_A COMP_B COMN_A COMN_B VDD_5LFI CD1 CD2 VDD_MIX VDD_TXPAB VEXT VEXT2 Directional unit OAD OAD_2 ADC DAC MIX_INP MIX_INN MIXS_IN RFOUTN_1 RFOUTN_2 RFOUTP_1 RFOUTP_2 RFONX RFOPX EXT_IN OCSI OSCO VCO CP 64 2 1 3 5 31 30 58 53 52 13 15 16 17 AS3990/ AS3991 IQ Down Conversion Idle 80 Soft Init 83 Hop to Main Frequency 84 Hop to Auxiliary Frequency 85 Trigger AD Conversion 87 Reset FIFO 8F Transmission With CRC 90 Transmission With CRC Expecting Header Bit 91 Transmission Without CRC 92 Delayed Transmission With CRC 93 Delayed Transmission Without CRC 94 Block RX 96 Enable RX 97 EPC GEN2 Specific Commands Query 98 QueryRep 99 QueryAdjustUp 9A QueryAdjustNic 9B QueryAdjustDown 9C ACK 9D NAK 9E ReqRN 9F Reader Communication Interface Parallel Interface Communication Serial Interface Communication Timing Diagrams Timing Parameters FIFO 9 Package Drawings and Markings 48 10 Ordering Information 50 4 - 51 AS3990/AS3991 Data Sheet - Pin Assignments 4 Pin Assignments Figure Pin Assignments Top View 64 COMP_A 63 VDDLF 62 CP 61 VOSC 60 VCO 59 VDD_A 58 ADC 57 VSN_CP 56 EXT_IN 55 VSN_A 54 AGD 53 CD1 52 CD2 51 VDD_IO 50 CLK 49 CLSYS COMN_A 1 COMP_B 2 COMN_B 3 DAC 4 VDD_5LFI 5 VSS 6 MIX_INP 7 VSS 8 MIX_INN 9 MIXS_IN 10 VSN_MIX 11 CBIB 12 VDD_MIX 13 CBV5 14 VDD_TXPAB 15 VEXT 16 AS3990/AS3991 48 IO7 47 IO6 46 IO5 45 IO4 44 IO3 43 IO2 42 IO1 41 IO0 40 IRQ 39 EN 38 VDD_D 37 OSCO 36 OSCI 35 VSN_RFP 34 VDD_RFP 33 RFOPX VEXT2 17 VDD_RF 18 VDD_B 19 RFOUTP_1 20 RFOUTP_2 21 VSN_1 22 VSN_2 23 VSN_3 24 VSN_4 25 VSN_5 26 RFOUTN_1 27 RFOUTN_2 28 VSN_D 29 OAD2 30 OAD 31 RFONX 32 Pin Descriptions Table Pin Descriptions Pin Name COMN_A COMP_B COMN_B Pin Number 1 2 3 VDD_5LFI MIX_INP MIX_INN MIXS_IN VSN_MIX CBIB VDD_MIX Pin Type BID SUPI INP SUPI INP SUPI BID SUPO Connect de-coupling capacitor to VDD_5LFI DAC output for external amplifier support, Output Resistance of DAC pin is 1kΩ Positive supply for LF input stage, connect to VDD_MIX Substrate Differential mixer positive input Substrate Differential mixer negative input Single ended mixer input Mixer negative supply Internal node de-coupling capacitor to GND Mixer positive supply, internally regulated to 4.8V 5 - 51 AS3990/AS3991 Data Sheet - Pin Assignments Table Pin Descriptions Pin Name Pin Number CBV5 Data Sheet - Ordering Information 10 Ordering Information The devices are available as the standard products shown in Table Table Ordering Information Model AS3990-BQFW AS3991-BQFW Description No internal PA Internal PA, segmented VCO Delivery Form1 Package Tape and Reel in dry pack 64-pin QFN 9mm x 9mm Dry Pack sensitivity Level=3 according to IPC/JEDEC J-STD-033A. 50 - 51 AS3990/AS3991 Data Sheet - Ordering Information Copyrights Copyright 1997-2009, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Disclaimer Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG A-8141 Schloss Premstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 51 - 51

PDF Datasheet Preview

AS3990/AS3991

Data Sheet

UHF RFID Single Chip Reader EPC Class1 Gen2 Compatible
1 General Description

The AS3990/AS3991 UHF reader chip is an integrated analog front end and protocol handling systems for a ISO18000-6C 900MHz RFID reader system.

Equipped with built-in programming options, the device is suitable for a wide range of UHF RFID applications. The AS3990/AS3991 includes improved on-board VCO and internal PA.

The reader configuration is achieved by selecting the desired protocol in control registers. Direct access to all control registers allows fine tuning of different reader parameters.

Parallel or serial interface can be selected for communication between the host system MCU and the reader IC. When hardware coders and decoders are used for transmission and reception, data is transferred via 24 bytes FIFO register.

In case of direct transmission or reception, coders and decoders are bypassed and the host system can service the analog front end in real time.

The transmitter generates 20dBm output power into 50Ω load and is capable of ASK or PR-ASK modulation. The integrated supply voltage regulators ensure supply rejection of the complete reader system.

The transmission system comprises low level data coding. Automatic generation of FrameSync, Preamble, and CRC is supported.

The receiver system allows AM and PM demodulation. The receiver also comprises automatic gain control option patent pending and selectable gain and signal bandwidth to cover a range of input link frequency and bit rate options.

The signal strength of AM and PM modulation is measured and can be accessed in RSSI register.

The receiver output is selectable between digitized subcarrier signal and any of integrated sub-carrier decoders. Selected decoders deliver bit stream and data clock as outputs.

The receiver system also comprises framing system. This system performs the CRC check and organizes the data in bytes. Framed data is accessible to the host system through a 24 byte FIFO register.

To support external MCU and other circuitry a 3.3V regulated supply and clock outputs are available. The regulated supply has 20mA current capability.

The AS3990/AS3991 is available in a 64-pin QFN 9mm x 9mm , ensuring the smallest possible footprint.
2 Key Features

ISO18000-6C EPC Gen2 full protocol support ISO18000-6A,B compatibility in direct mode Integrated low level transmission coding Integrated low level decoders Integrated data framing Integrated CRC checking Parallel 8-bit or serial 4-pin SPI interface to MCU using 24 bytes FIFO Voltage range for communication to MCU between 1.8V and 5.5V Selectable clock output for MCU Integrated supply voltage regulator 20mA , which can be used to supply MCU and other external circuitry Integrated supply voltage regulator for the RF output stage, providing rejection to supply noise Internal power amplifier 20dBm for short range applications Modulator using ASK or PR-ASK modulation Adjustable ASK modulation index AM & PM demodulation ensuring no “communication holes” with automatic I/Q selection Built-in reception low-pass and high-pass filters having selectable corner frequencies Selectable reception gain Reception automatic gain control AD converter for measuring TX power using external RF power detector DA converter for controlling external power amplifier Frequency hopping support On-board VCO and PLL covering complete RFID frequency range 840MHz to 960MHz Oscillator using 20MHz crystal Power down, standby and active mode Can be powered by USB with no need for step conversion
3 Applications

The device is an ideal solution for UHF RFID reader systems and hand-held UHF RFID readers.
1 - 51

AS3990/AS3991

Data Sheet - Applications

Figure Block Diagram
4xC 2xC

COMP_A COMP_B COMN_A COMN_B VDD_5LFI

CD1 CD2 VDD_MIX VDD_TXPAB VEXT VEXT2

Directional unit

OAD OAD_2

ADC DAC

MIX_INP MIX_INN MIXS_IN

RFOUTN_1 RFOUTN_2 RFOUTP_1 RFOUTP_2

RFONX RFOPX EXT_IN

OCSI

OSCO VCO CP
64 2 1 3 5 31 30 58
53 52 13 15
16 17

AS3990/ AS3991

IQ Down Conversion
Idle 80 Soft Init 83 Hop to Main Frequency 84 Hop to Auxiliary Frequency 85 Trigger AD Conversion 87 Reset FIFO 8F Transmission With CRC 90 Transmission With CRC Expecting Header Bit 91 Transmission Without CRC 92 Delayed Transmission With CRC 93 Delayed Transmission Without CRC 94 Block RX 96 Enable RX 97 EPC GEN2 Specific Commands Query 98 QueryRep 99 QueryAdjustUp 9A QueryAdjustNic 9B QueryAdjustDown 9C ACK 9D NAK 9E ReqRN 9F Reader Communication Interface Parallel Interface Communication Serial Interface Communication Timing Diagrams Timing Parameters FIFO 9 Package Drawings and Markings 48 10 Ordering Information 50
4 - 51

AS3990/AS3991

Data Sheet - Pin Assignments
4 Pin Assignments

Figure Pin Assignments Top View
64 COMP_A 63 VDDLF 62 CP 61 VOSC 60 VCO 59 VDD_A 58 ADC 57 VSN_CP 56 EXT_IN 55 VSN_A 54 AGD 53 CD1 52 CD2 51 VDD_IO 50 CLK 49 CLSYS

COMN_A 1 COMP_B 2 COMN_B 3

DAC 4 VDD_5LFI 5

VSS 6 MIX_INP 7

VSS 8 MIX_INN 9 MIXS_IN 10 VSN_MIX 11

CBIB 12 VDD_MIX 13

CBV5 14 VDD_TXPAB 15

VEXT 16

AS3990/AS3991
48 IO7 47 IO6 46 IO5 45 IO4 44 IO3 43 IO2 42 IO1 41 IO0 40 IRQ 39 EN 38 VDD_D 37 OSCO 36 OSCI 35 VSN_RFP 34 VDD_RFP 33 RFOPX

VEXT2 17 VDD_RF 18

VDD_B 19 RFOUTP_1 20 RFOUTP_2 21

VSN_1 22 VSN_2 23 VSN_3 24 VSN_4 25 VSN_5 26 RFOUTN_1 27 RFOUTN_2 28 VSN_D 29 OAD2 30

OAD 31 RFONX 32

Pin Descriptions

Table Pin Descriptions

Pin Name COMN_A COMP_B COMN_B

Pin Number 1 2 3

VDD_5LFI

MIX_INP

MIX_INN

MIXS_IN

VSN_MIX

CBIB

VDD_MIX

Pin Type BID

SUPI INP SUPI INP SUPI BID SUPO

Connect de-coupling capacitor to VDD_5LFI

DAC output for external amplifier support, Output Resistance of DAC pin is 1kΩ Positive supply for LF input stage, connect to VDD_MIX Substrate Differential mixer positive input Substrate Differential mixer negative input Single ended mixer input Mixer negative supply Internal node de-coupling capacitor to GND Mixer positive supply, internally regulated to 4.8V
5 - 51

AS3990/AS3991

Data Sheet - Pin Assignments

Table Pin Descriptions

Pin Name Pin Number

CBV5
Data Sheet - Ordering Information
10 Ordering Information

The devices are available as the standard products shown in Table
Table Ordering Information

Model AS3990-BQFW AS3991-BQFW

Description No internal PA Internal PA, segmented VCO

Delivery Form1

Package

Tape and Reel in dry pack
64-pin QFN 9mm x 9mm

Dry Pack sensitivity Level=3 according to IPC/JEDEC J-STD-033A.
50 - 51

AS3990/AS3991
Data Sheet - Ordering Information

Copyrights

Copyright 1997-2009, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.

Contact Information

Headquarters austriamicrosystems AG A-8141 Schloss Premstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
51 - 51

More datasheets: B39321B3764Z810 | 94804 | 94821 | 2341 | M39144 SL002 | M39144 SL001 | M39144 SL005 | 1669 | AS3990-BQFT | AS3990-EB FRANK EU

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Datasheet ID: AS3991-DK MICRO 519735