ATMEGA64RZAPV-10AU Atmel, ATMEGA64RZAPV-10AU Datasheet - Page 4

BUNDLE ATMEGA644P/AT86RF230 TQFP

ATMEGA64RZAPV-10AU

Manufacturer Part Number
ATMEGA64RZAPV-10AU
Description
BUNDLE ATMEGA644P/AT86RF230 TQFP
Manufacturer
Atmel
Series
ATMEGAr
Datasheet

Specifications of ATMEGA64RZAPV-10AU

Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee
Power - Output
3dBm
Sensitivity
-101dBm
Voltage - Supply
1.8 V ~ 3.6 V
Data Interface
PCB, Surface Mount
Memory Size
64kB Flash, 2kB EEPROM, 4kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
44-TQFP, 44-VQFP
Wireless Frequency
2.4 GHz
Interface Type
SPI, USART
Output Power
3 dBm
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Applications
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
ATmega64
3.3 Description of Power and Filter Circuit
3.4 Description of STK500 Interface
4
AVR414
• Better tolerance to less than perfect RF ground.
However, the RZ502 has a typical single ended SMA stub antenna mounted. A
special circuit is required to convert the 100Ω differential RF input/output pins of the
AT86RF230 to a 50Ω single ended RF port. This is solved by a BALUN circuit on the
RZ502 top module. A BALUN (a compound term meaning “BAlanced-UNbalanced”) is
a passive component that transforms impedance. Two capacitors are added as a DC
block. Figure 3-2 depicts the BALUN circuit described above.
Figure 3-2 BALUN Circuit
Figure 3-3 shows the power and filter circuit connected to the AT86RF230. The power
circuit is built from three components; a SMD fuse (F1), a Zener diode (D1) and a
jumper (JP1). D1 is a 3.9 Volts Zener diode connected in series with the thermal fuse.
This connection prevents excessive voltages on the DVTG (Digital Voltage) and
AVTG (Analog Voltage) ports when JP1 is closed, and potentially harm the
AT86RF230. JP1 can also be used for current measurements.
The rightmost part of Figure 3-3 is a PI-type LC (two shunt capacitors and one series
inductor) filter used to suppress noise and harmonics to enter the analog/RF part of
the radio transceiver.
Figure 3-3 Power and Filter Circuit
The STK500 board has two expansion connectors, one on each side of the
programming module. All AVR I/O ports, programming signals and control signals are
routed to these connectors. Figure 3-4 depicts the pin-out of expansion connector 1.
This connector is used by the RZ502 top module to mount itself to the
STK500/STK501 board stack. And ultimately connect the AT86RF230 radio
RFN
RFP
C1
C2
Balanced 1
Balanced 2
BALUN
Unbalanced
SMA Connector
8051A-AVR-11/06

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