MRF49XA-I/ST Microchip Technology, MRF49XA-I/ST Datasheet - Page 97

• Manufacturer Part Number: MRF49XA-I/ST
• Description: IC RF TXRX 433/868/915 16-TSSOP
• Manufacturer: Microchip Technology

Specifications of MRF49XA-I/ST

• Package / Case: 16-TSSOP
• Frequency: 433MHz, 868MHz, 915MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: Home / Industrial Automation, Remote Access, Security Alarms
• Power - Output: 7dbm
• Sensitivity: -110dBm
• Voltage - Supply: 2.2 V ~ 3.8 V
• Current - Receiving: 11mA
• Current - Transmitting: 15mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 2
• Wireless Frequency: 433 MHz to 915 MHz
• Output Power: + 7 dBm
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Modulation: FHSS, FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 579-MRF49XA-1/ST

INDEX
A
Absolute Maximum Ratings ................................................ 77
AC Characteristics
Antenna Design Considerations ......................................... 72
Antenna/Balun .................................................................... 71
Automatic Frequency Control (AFC) ............................. 12, 49
B
Baseband Features............................................................... 1
Baseband Filters (BBF)....................................................... 12
Baseband/Data Filtering ..................................................... 54
Bill of Materials.................................................................... 75
Block Diagrams
C
Clock Output ......................................................................... 9
Clock Recovery Circuit (CLKRC) ........................................ 12
Crystal Oscillator ................................................................. 12
Crystal Oscillator and Clock Output .................................... 46
Crystal Selection Guidelines ............................................... 48
Current Consumption .......................................................... 78
Customer Change Notification Service ............................... 97
Customer Support............................................................... 97
D
Data
Data Filtering and Clock Recovery ..................................... 12
Data Indicator Output (DIO) ................................................ 13
Data Quality Indicator (DQI).......................................... 13, 56
Data Validity Blocks
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Other Timing Parameters............................................ 81
PLL Parameters .......................................................... 80
Receiver...................................................................... 79
Transmitter.................................................................. 80
AFC Circuit for Frequency Offset Correction .............. 50
Analog RSSI Voltage vs. RF Input Power................... 13
Application Circuit ....................................................... 71
Balun Circuit................................................................ 71
DIO Logic .................................................................... 56
Four Basic Copper FR4 Layers .................................. 72
Functional Node............................................................ 6
Logic Connection Between Power Control Bits .......... 61
MCU to MRF49XA Interface ......................................... 6
MRF49XA Architectural ................................................ 8
MRF49XA Interrupt Generation Logic......................... 53
RESET Pin Internal Connection.................................. 45
Two Basic Copper FR4 Layers ................................... 72
TX Register Before Transmit ...................................... 64
TX Register During Transmit ...................................... 65
Data In .......................................................................... 9
Data Out........................................................................ 9
Analog Operation ........................................................ 55
Digital Operation ......................................................... 55
Data Indicator Output.................................................. 13
Data Quality Indicator ................................................. 13
Receive Signal Strength Indicator............................... 13
Preliminary
E
Electrical Characteristics .................................................... 77
Errata .................................................................................... 3
Examples
External Reference Input .................................................... 10
F
FIFO Interrupt ....................................................................... 9
Frequency Shift Keying
Functional Description ........................................................ 43
G
General PCB Layout Deign ................................................ 72
H
Hardware Description ........................................................... 7
I
I/O Pin Input Specifications................................................. 78
Initialization ......................................................................... 51
Internet Address ................................................................. 97
Interrupt .............................................................................. 10
Interrupt Request Output ...................................................... 9
Interrupts ............................................................................ 51
L
Low Duty Cycle Mode................................................... 14, 62
Low Noise Amplifier (LNA).................................................. 11
Low-Battery Voltage Detector............................................. 14
M
Memory Organization ......................................................... 16
Microchip Internet Web Site................................................ 97
O
Output
P
Packaging
Packaging Information ........................................................ 87
Performance Characteristics
Frequency Deviation and BBBW Calculation ............. 54
Data .............................................................................. 9
FIFO Select .................................................................. 9
Clearing ...................................................................... 52
LBTD .......................................................................... 52
LCEXINT .................................................................... 52
POR............................................................................ 52
Setting ........................................................................ 52
TXOWRXOF............................................................... 52
TXRXFIFO.................................................................. 52
WUTINT...................................................................... 52
Filter Capacitor ............................................................. 9
Details......................................................................... 88
Marking....................................................................... 87
BER Curves
Channel Selectivity and Blocking ............................... 83
Receiver Sensitivity Over Ambient Temperature
In 433 MHz Band................................................ 84
In 868 MHz Band................................................ 84
At 433 MHz......................................................... 86
At 868 MHz......................................................... 86
MRF49XA
DS70590B-page 95