AT86RF212-ZU Atmel, AT86RF212-ZU Datasheet - Page 37

• Manufacturer Part Number: AT86RF212-ZU
• Description: IC TXRX ZIGBE/802.15.4/ISM 32QFN
• Manufacturer: Atmel

Specifications of AT86RF212-ZU

• Frequency: 700MHz, 800MHz, 900MHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4 Zigbee, 6LoWPAN, ISM
• Applications: ISM, ZigBee™
• Power - Output: 10dBm
• Sensitivity: -110dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 9.2mA
• Current - Transmitting: 25mA
• 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: 769 MHz to 935 MHz
• Interface Type: SPI
• Noise Figure: 7 dB
• Output Power: 21 dB
• Operating Supply Voltage: 1.8 V, 3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 25 mA
• Minimum Operating Temperature: - 40 C
• Modulation: OQPSK
• Protocol Supported: 802.15.4
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.1.4.4 State Change from PLL_ON via BUSY_TX to RX_ON States
8168C-MCU Wireless-02/10
Figure 5-5. Transition from TRX_OFF to PLL_ON/RX_ON State and further to
RX_ON/PLL_ON
In TRX_OFF state, entering the commands PLL_ON or RX_ON initiates a ramp-up
sequence of the internal 1.8 V voltage regulator for the analog domain (AVREG).
RX_ON state can be entered any time from PLL_ON state, regardless whether the PLL
has already locked, which is indicated by IRQ_0 (PLL_LOCK). Likewise, PLL_ON state
can be entered any time from RX_ON state.
When TRX_OFF_AVDD_EN (register 0x0C, TRX_CTRL_2) is already set in TRX_OFF
state, the analog voltage regulator is turned on immediately and the ramp up sequence
to PLL_ON or RX_ON can be accelerated.
The transition from PLL_ON to BUSY_TX state and subsequently to RX_ON state is
shown in Figure 5-6.
Figure 5-6. PLL_ON to BUSY_TX to RX_ON Timing for O-QPSK 250 kbit/s Mode
Starting from PLL_ON, it is further assumed that the PLL has already been locked. A
transmission is initiated either by a rising edge of pin 11 (SLP_TR) or by command
TX_START. The PLL settles to the transmit frequency and the PA is enabled. After the
duration of t
transmitting the internally generated SHR and the PSDU data of the Frame Buffer. After
completing the frame transmission, indicated by IRQ_3 (TRX_END), the PLL settles
back to the receive frequency within t
If during BUSY_TX the radio transmitter is requested to change to a receive state, it
automatically proceeds to state RX_ON upon completion of the transmission.
Note:
If TRX_CMD = RX_ON in TRX_OFF state, RX_ON state is entered immediately,
even if the PLL has not settled.
TR10
(1 symbol period), the AT86RF212 changes into BUSY_TX state,
TR11
and returns to state PLL_ON.
AT86RF212
37