ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 41

• Manufacturer Part Number: ATMEGA128RFA1-ZU
• Description: IC AVR MCU 2.4GHZ XCEIVER 64QFN
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RFA1-ZU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3.5dBm
• Sensitivity: -100dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 12.5mA
• Current - Transmitting: 14.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 16kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Rf Ic Case Style: QFN
• No. Of Pins: 64
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 16 KB
• Interface Type: JTAG
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 38
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVR128RFA1-EK1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.4.1.4.2 PLL_ON and RX_ON States
9.4.1.4.3 BUSY_TX and RX_ON States
8266B-MCU Wireless-03/11
During this wake-up procedure the calibration of the filter-tuning network (FTN) is
performed. Entering TRX_OFF state is signaled by the TRX24_AWAKE interrupt, if
enabled.
The transition from TRX_OFF to PLL_ON and RX_ON mode is shown in
below.
Figure 9-15. Transition from TRX_OFF to PLL_ON and RX_ON State
Entering the commands PLL_ON or RX_ON in TRX_OFF state initiates a ramp-up
sequence of the internal 1.8V voltage regulator for the analog domain (AVREG), if
AVREG is not already enabled by the AVR ADC module. RX_ON state can be entered
any time from PLL_ON state regardless whether the PLL has already locked as
indicated by the TRX24_PLL_LOCK interrupt.
The transition from PLL_ON to BUSY_TX state and subsequent to RX_ON state is
shown in
Figure 9-16. PLL_ON to BUSY_TX to RX_ON Timing
Starting from PLL_ON state it is assumed that the PLL is already locked. A
transmission is initiated either by writing “1” to bit SLPTR or by command TX_START.
The PLL settles to the transmit frequency and the PA is enabled.
Note:
Event
State
Block
Command
Time
Event
State
Block
Com m and
Tim e
Figure 9-16
1. If TRX_CMD = RX_ON in TRX_OFF state RX_ON state is entered immediately,
2. If the AVR ADC module is enabled, the AVREG is already started and thus the
TRX_OFF
even if the PLL has not settled.
state transition time t
PLL_O N
0
PLL
AVREG
PLL_ON
or com m and TX_START
below.
SLPTR
t
TR4
0
TR4
t
PA
TR 10
is reduced.
PLL
16
BUSY_TX
100
PA, TX
TRX24_PLL_LOCK IRQ
PLL_ON
R X_O N
ATmega128RFA1
RX_ON
RX_ON
RX
x
RX_O N
t
TR8
t
PLL
TR 11
x + 32
Figure 9-15
RX
Tim e [µ s]
Time [µs]
41