参数资料
型号: AT86RF212-ZUR
厂商: Atmel
文件页数: 11/172页
文件大小: 0K
描述: TXRX AVR LOW PWR/VOLTAGE 32PQFN
标准包装: 1
频率: 700MHz,800MHz,900MHz
数据传输率 - 最大: 250kbps
调制或协议: 802.15.4 Zigbee,6LoWPAN,ISM
应用: ISM,ZigBee?
功率 - 输出: 10dBm
灵敏度: -110dBm
电源电压: 1.8 V ~ 3.6 V
电流 - 接收: 9.2mA
电流 - 传输: 25mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
工作温度: -40°C ~ 85°C
封装/外壳: 32-VFQFN 裸露焊盘
包装: 标准包装
其它名称: AT86RF212-ZURDKR
AT86RF212
as possible to the pins and should have a low-resistance and low-inductance
connection to ground to achieve the best performance.
The crystal (XTAL), the two load capacitors (CX1, CX2), and the internal circuitry
connected to pins XTAL1 and XTAL2 form the crystal oscillator. To achieve the best
accuracy and stability of the reference frequency, large parasitic capacitances should
be avoided. Crystal lines should be routed as short as possible and not in proximity of
digital I/O signals. This is especially required for the High Data Rate Modes; refer to
section 7.1.4.
Crosstalk from digital signals to the crystal pins or the RF pins can degrade the system
performance. Therefore, a low-pass filter (C3, R1) is placed close to the CLKM output
pin to reduce the emission of CLKM signal harmonics. This is not needed if the CLKM
pin is not used as a microcontroller clock source. In that case, the output should be
turned off during device initialization.
The ground plane of the application board should be separated into four independent
fragments: the analog, the digital, the antenna, and the XTAL ground plane. The
exposed paddle shall act as the reference point of the individual grounds.
Please note that pins DIG1, DIG2, DIG3, and DIG4 are connected to ground in the
Basic Application Schematic; refer to Figure 3-1. Special programming of these pins
requires a different schematic; refer to section 3.2.
Table 3-1. Exemplary Bill of Materials (BoM) for Basic Application Schematic
Symbol
Description
Value
Manufacturer Part Number
Comment
B1
SMD balun
800 – 1000 MHz
Wuerth
748431090
JTI
0900BL18B100
F1
SMD low pass filter
902 – 928 MHz
Wuerth
748131009
JTI
0915LP15A026
B1 + F1
Balun/Filter combination
863 – 928 MHz
779 – 787 MHz
JTI
JTI
0896FB15A0100
0783FB15A0100
CB1, CB3
CB2, CB4
LDO VREG bypass capacitor 1 μ F
1 μ F
Power supply bypass
AVX
Murata
0603YD105KAT2A
GRM188R61C105KA12D
X5R
(0603)
10%
16 V
capacitor
CX1, CX2
Crystal load capacitor
12 pF
AVX
06035A120JA
COG
5%
50 V
Murata
GRP1886C1H120JA01
(0603)
C1, C2
RF coupling capacitor
68 pF
Epcos
B37930
COG
5%
50 V
Epcos
AVX
B37920
06035A680JAT2A
(0402 or 0603)
C3
CLKM low-pass filter
2.2 pF
AVX
06035A229DA
COG
± 0.5 pF
50 V
capacitor
Murata
GRP1886C1H2R0DA01
(0603)
Designed for f CLKM = 1 MHz
R1
CLKM low-pass filter resistor
680 Ω
Designed for f CLKM = 1 MHz
XTAL
Crystal
CX-4025 16 MHz
SX-4025 16 MHz
ACAL Taitien
Siward
XWBBPL-F-1
A207-011
11
8168C-MCU Wireless-02/10
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