MRF89XA-I/MQ Microchip Technology, MRF89XA-I/MQ Datasheet - Page 112

• Manufacturer Part Number: MRF89XA-I/MQ
• Description: TXRX ISM SUB-GHZ ULP 32QFN
• Manufacturer: Microchip Technology

Specifications of MRF89XA-I/MQ

• Package / Case: 32-WFQFN Exposed Pad
• Frequency: 863MHz ~ 870MHz, 902MHz ~ 928MHz, 950MHz ~ 960MHz
• Data Rate - Maximum: 200kbps
• Modulation Or Protocol: FSK, OOK
• Applications: ISM
• Power - Output: 12.5dBm
• Sensitivity: -113dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 3mA
• Current - Transmitting: 25mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Wireless Frequency: 863 MHz to 870 MHz, 902 MHz to 928 MHz, 950 MHz to 960 MHz
• Interface Type: SPI
• Noise Figure: - 112 dBc
• Output Power: - 8.5 dBm, + 12.5 dBm
• Operating Supply Voltage: 2.1 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Data Rate: 256 Kbps
• Maximum Supply Current: 25 mA
• Minimum Operating Temperature: - 40 C
• Modulation: FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MRF89XA
5.3
As an ultra-low power device, the MRF89XA can be
configured for low minimum average power consump-
tion. To minimize consumption the following optimized
transitions between modes are shown.
5.3.1
The lowest-power RX cycle is shown in Figure 5-1.
FIGURE 5-1:
DS70622B-page 112
3.0 mA typ.
1.3 mA typ.
100 nA typ.
MRF89XA
65 µA typ.
Note 1:
IDDRX
IDDFS
IDDST
IDDSL
IDD
Switching Times and Procedures
OPTIMIZED RECEIVE CYCLE
If the lock detect indicator is available on an external interrupt pin of the companion microcontroller, it can be used to optimize
TSFS, without having to wait the maximum specified TSFS.
TSOSC
Set MRF89XA in Stand-by mode
Wait for XO settling
Wait
OPTIMIZED RX CYCLE
TSFS
Wait
Set MRF89XA in FS mode
Wait for PLL settling
TSWRF
Wait
Preliminary
Set MRF89XA in RX mode
Wait for Receiver settling
Time
RX
Receiver is ready:
- RSSI sampling is valid after a 1/
- Received data is valid
© 2010 Microchip Technology Inc.
MRF89XA can be put in
Any other mode
f
dev period