ATZB-EVB-24-A2 Atmel, ATZB-EVB-24-A2 Datasheet - Page 16

• Manufacturer Part Number: ATZB-EVB-24-A2
• Description: Zigbee / 802.15.4 Development Tools MeshBean 2.4 GHz Dual Chip Antenna
• Manufacturer: Atmel

Specifications of ATZB-EVB-24-A2

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: ATZB-900-B0
• Frequency: 2.4 GHz
• Interface Type: SPI, UART, USB
• Operating Supply Voltage: 3 V

3.4
ZigBit™ 700/800/900 MHz Wireless Modules
Mounting Information
Figure 3-3.
The below diagrams show the PCB layout recommended for ZigBit 900 module. Neither via-holes nor
wires are allowed on the PCB upper layer in area occupied by the module. As a critical requirement,
RF_GND pins should be grounded via several holes to be located right next to the pins thus minimizing
inductance and preventing both mismatch and losses.
Host MCU
UART_TXD
UART_RXD
UART_RTS
UART_CTS
1,8..3,6V
VCC
Typical Reference Schematic
RST
1uF
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
SPI_CLK
SPI_MISO
SPI_MOSI
GPIO0
GPIO1
GPIO2
OSC32K_OUT
RESET
DGND
CPU_CLK
I2C_CLK
I2C_DATA
UART_TXD
UART_RXD
UART_RTS
UART_CTS
GPIO6
GPIO7
GPIO3
GPIO4
GPIO5
DGND
DGND
D_VCC
D_VCC
USART0_EXTCLK
ADC_INPUT_3
ADC_INPUT_2
ADC_INPUT_1
USART0_RXD
USART0_TXD
JTAG_TMS
JTAG_TDI
JTAG_TDO
JTAG_TCK
UART_DTR
A_VREF
RF_GND
RFP_IO
RF_GND
RFN_IO
RF_GND
GPIO9
GPIO8
IRQ_7
IRQ_6
AGND
BAT
44
45
46
47
48
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
two capacitors*
*) 68 pF
GRM 1555C1H101JZ01D
100k
VCC
0900BL18B100
6
5
4
8227C–MCU Wireless–06/09
Balun
10
5
9
3
1
4
7
8
6
2
3
2
1
Specifications
JTAG_TMS
JTAG_TDI
JTAG_TDO
JTAG_TCK
JTAG_VCC
NC
NC
JTAG_RST
JTAG_GND
JTAG_GND
3-9