AT86RF231-ZUR Atmel, AT86RF231-ZUR Datasheet - Page 110

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AT86RF231-ZUR

Manufacturer Part Number
AT86RF231-ZUR
Description
IC RADIO TXRX 2.4GHZ 32-VQFN
Manufacturer
Atmel
Datasheet

Specifications of AT86RF231-ZUR

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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
9.4
9.4.1
9.4.2
9.4.3
8111C–MCU Wireless–09/09
Voltage Regulators (AVREG, DVREG)
Overview
Configuration
Data Interpretation
The main features of the Voltage Regulator blocks are:
The internal voltage regulators supply a stabilized voltage to the AT86RF231. The AVREG pro-
vides the regulated 1.8V supply voltage for the analog section and the DVREG supplies the 1.8V
supply voltage for the digital section.
A simplified schematic of the internal voltage regulator is shown in
Figure 9-5.
The voltage regulators require bypass capacitors for stable operation. The value of the bypass
capacitors determine the settling time of the voltage regulators. The bypass capacitors shall be
placed as close as possible to the pins and shall be connected to ground with the shortest possi-
ble traces.
The voltage regulators can be configured by the register 0x10 (VREG_CTRL).
It is recommended to use the internal regulators, but it is also possible to supply the low voltage
domains by an external voltage supply. For this configuration, the internal regulators need to be
switched off by setting the register bits to the values AVREG_EXT = 1 and DVREG_EXT = 1. A
regulated external supply voltage of 1.8V needs to be connected to the pins 13, 14 (DVDD) and
pin 29 (AVDD). When turning on the external supply, ensure a sufficiently long stabilization time
before interacting with the AT86RF231.
The status bits AVDD_OK = 1 and DVDD_OK = 1 of register 0x10 (VREG_CTRL) indicate an
enabled and stable internal supply voltage. Reading value 0 indicates a disabled or internal sup-
ply voltage not settled to the final value.
• Bandgap stabilized 1.8V supply for analog and digital domain
• Low dropout (LDO) voltage regulator
• Configurable for usage of external voltage regulator
Simplified Schematic of AVREG/DVREG
reference
Bandgap
voltage
1.25V
(D)EVDD
AVDD,
DVDD
Figure 9-5 on page
AT86RF231
110.
110

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