AT86RF231-ZU Atmel, AT86RF231-ZU Datasheet - Page 90

• Manufacturer Part Number: AT86RF231-ZU
• Description: IC TXRX ZIGBE/802.15.4/ISM 32QFN
• Manufacturer: Atmel

Specifications of AT86RF231-ZU

• 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: 2.5 V, 3.3 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
• Transmitting Current: 11.6mA
• Data Rate: 2Mbps
• Frequency Range: 2.405GHz To 2.48GHz
• Modulation Type: O-QPSK
• Sensitivity Dbm: -101dBm
• Rf Ic Case Style: QFN
• No. Of Pins: 32
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.3.4
8111C–MCU Wireless–09/09
Register Description
Figure 8-4.
Register 0x06 (PHY_RSSI):
• Bit 7 - RX_CRC_VALID
Refer to register description in
• Bit [6:5] - RND_VALUE
Refer to register description in section
• Bit [4:0] - RSSI
The result of the automated RSSI measurement is stored in register bits RSSI. The value is
updated every 2 µs in receive states.
The read value is a number between 0 and 28 indicating the received signal strength as a linear
curve on a logarithmic input power scale (dBm) with a resolution of 3 dB. An RSSI value of 0
indicates an RF input power of P
P
Bit
+0x06
Read/Write
Reset Value
RF
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
10 dBm (see parameter 12.7.18).
0
0
RX_CRC_VALID
Mapping between RSSI Value and Received Input Power
2
7
R
0
4
Measured
Ideal
6
6
R
0
Section 8.2.5 “Register Description” on page
RND_VALUE
8
RF
< -91 dBm (see parameter 12.7.16), a value of 28 a power of
10
Section 11.2.2 “Register Description” on page
5
R
0
12
4
R
0
14
RSSI
16
3
R
0
18
RSSI
2
R
0
20
22
1
R
0
AT86RF231
87.
24
0
R
0
26
136.
PHY_RSSI
28
30
90