AS3991-BQFT austriamicrosystems, AS3991-BQFT Datasheet - Page 3

• Manufacturer Part Number: AS3991-BQFT
• Description: IC UHF RFID READER 64-QFN
• Manufacturer: austriamicrosystems

Specifications of AS3991-BQFT

• Rf Type: Read / Write
• Frequency: 840MHz ~ 960MHz
• Features: ISO-18000-6
• Package / Case: 64-VFQFN, Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AS3991-BQFT; AS3991-BQFTTR

AS3990/AS3991
Data Sheet - A p p l i c a t i o n s
Contents
1 General Description
2 Key Features ......................................................................................................................................... 1
3 Applications ........................................................................................................................................... 1
4 Pin Assignments
5 Absolute Maximum Ratings
6 Electrical Characteristics ....................................................................................................................... 9
7 Detailed Description
8 Application Information
www.austriamicrosystems.com
Pin Descriptions
Supply
Host Communication
VCO and PLL
Chip Status Control
Protocol Control
Option Registers Preset
Transmitter
Receiver
ADC / DAC ..........................................................................................................................................................21
Reference Oscillator
Configuration Registers Address Space
Main Configuration Registers
Control Registers - Low Level Configuration Registers
Status Registers
Test Registers
PLL, Modulator, DAC, and ADC Registers
RX Length Registers
FIFO Control Registers
Direct Commands
Power Modes .................................................................................................................................................12
VCO and External RF Source ........................................................................................................................13
PLL .................................................................................................................................................................13
Normal Mode ..................................................................................................................................................14
Direct Mode ....................................................................................................................................................16
Modulator .......................................................................................................................................................17
Amplifier .........................................................................................................................................................17
Input Mixer .....................................................................................................................................................18
RX Filter .........................................................................................................................................................18
RX Gain ..........................................................................................................................................................19
Received Signal Strength Indicator (RSSI) ....................................................................................................19
Reflected RF Level Indicator ..........................................................................................................................19
Normal Mode ..................................................................................................................................................19
Direct Mode ....................................................................................................................................................21
Normal Mode With Mixer DC Level Output And Enable RX Output Available ...............................................21
DA Converter .................................................................................................................................................21
AD Converter .................................................................................................................................................22
.................................................................................................................................................................11
..............................................................................................................................................................18
..........................................................................................................................................................14
......................................................................................................................................................13
.....................................................................................................................................................32
....................................................................................................................................................5
..................................................................................................................................................14
..................................................................................................................................................29
................................................................................................................................... 5
...............................................................................................................................................38
.............................................................................................................................................14
...........................................................................................................................................22
...........................................................................................................................................36
.............................................................................................................................. 1
............................................................................................................................ 11
..........................................................................................................................................13
.......................................................................................................................................37
......................................................................................................................................14
....................................................................................................................... 23
.................................................................................................................. 8
.............................................................................................................................24
.............................................................................................................23
.........................................................................................................33
Revision 3.81
......................................................................................25
3 - 51