AT86RF231 Atmel Corporation, AT86RF231 Datasheet - Page 89
AT86RF231
Manufacturer Part Number
AT86RF231
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT86RF231.pdf
(198 pages)
Specifications of AT86RF231
Max. Operating Frequency
0 MHz
Crypto Engine
AES
Operating Voltage (vcc)
1.8 to 3.6
Frequency Band
2.4 GHz
Max Data Rate (mb/s)
2
Antenna Diversity
Yes
External Pa Control
Yes
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
13.2
Transmit Current Consumption (ma)
14.4
Link Budget (dbm)
104
Available stocks
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Manufacturer
Quantity
Price
Part Number:
AT86RF231-ZU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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8.3
8.3.1
8.3.2
8.3.3
8111C–MCU Wireless–09/09
Received Signal Strength Indicator (RSSI)
Overview
Reading RSSI
Data Interpretation
The Received Signal Strength Indicator is characterized by:
The RSSI is a 5-bit value indicating the receive power in the selected channel, in steps of 3 dB.
No attempt is made to distinguish IEEE 802.15.4 signals from others, only the received signal
strength is evaluated. The RSSI provides the basis for an ED measurement, see
“Energy Detection (ED)” on page
In Basic Operating Mode the RSSI value is valid in any receive state, and is updated every
t
It is not recommended to read the RSSI value when using the Extended Operating Mode. The
automatically generated ED value should be used alternatively, see
tion (ED)” on page
The RSSI value is a 5-bit value indicating the receive power, in steps of 3 dB and with a range of
0 - 28.
An RSSI value of 0 indicates a receiver RF input power of P
the range of 1 to 28, the RF input power can be calculated as follows:
P
TR25
RF
• Minimum RSSI level is -91 dBm (RSSI_BASE_VAL)
• Dynamic range is 81 dB
• Minimum RSSI value is 0
• Maximum RSSI value is 28
= RSSI_BASE_VAL + 3
= 2 µs to register 0x06 (PHY_RSSI).
91.
*
(RSSI -1) [dBm]
91.
RF
< -91 dBm. For an RSSI value in
Section 8.4 “Energy Detec-
AT86RF231
Section 8.4
89
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