AT86RF231-ZF Atmel, AT86RF231-ZF Datasheet - Page 125
AT86RF231-ZF
Manufacturer Part Number
AT86RF231-ZF
Description
TXRX LOW POWER 2.4GHZ 32VQFN
Manufacturer
Atmel
Datasheet
1.AT86RF231-ZUR.pdf
(198 pages)
Specifications of AT86RF231-ZF
Frequency
2.4GHz
Data Rate - Maximum
2Mbps
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, RF4CE, SP100, WirelessHART™, ISM
Applications
Industrial Monitoring and Control, Wireless Alarm and Security Systems
Power - Output
-17dBm ~ 3dBm
Sensitivity
-101dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
12.3mA
Current - Transmitting
14mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Number Of Receivers
1
Number Of Transmitters
1
Wireless Frequency
2405 MHz to 2480 MHz
Interface Type
SPI
Noise Figure
6 dB
Output Power
20 dB
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Supply Current
12.3 mA
Minimum Operating Temperature
- 40 C
Modulation
OQPSK
Protocol Supported
802.15.4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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9.8
9.8.1
9.8.2
8111C–MCU Wireless–09/09
Bit
+0x18
Read/Write
Reset Value
Automatic Filter Tuning (FTN)
Overview
Register Description
FTN_START
R/W
7
0
The FTN is incorporated to compensate device tolerances for temperature, supply voltage varia-
tions as well as part-to-part variations of the radio transceiver. The filter-tuning result is used to
correct the analog baseband filter transfer function and the PLL loop-filter time constant, refer to
Section 4. “General Circuit Description” on page
An FTN calibration cycle is initiated automatically when entering the TRX_OFF state from the
SLEEP, RESET or P_ON states.
Although receiver and transmitter are very robust against these variations, it is recommended to
initiate the FTN manually if the radio transceiver does not use the SLEEP state. If necessary, a
calibration cycle is to be initiated in states TRX_OFF, PLL_ON or any receive state. This applies
in particular for the High Data Rate Modes with a much higher sensitivity against BPF transfer
function variations. The recommended calibration interval is 5 min or less.
Register 0x18 (FTN_CTRL):
This register controls the operation of the filter tuning network calibration loop.
• Bit 7 - FTN_START
FTN_START = 1 initiates the filter tuning network calibration. When the calibration cycle has fin-
ished after at most 25 µs the register bit is automatically reset to 0.
• Bit [6:0] - Reserved
R/W
6
1
R/W
5
0
R/W
4
1
Reserved
R/W
3
1
10.
R/W
2
0
R/W
1
0
AT86RF231
R/W
0
0
FTN_CTRL
125
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