AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 11

• Manufacturer Part Number: AT86RF212
• Manufacturer: Atmel Corporation

Specifications of AT86RF212

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 700/800/900MHz
• Max Data Rate (mb/s): 1
• Antenna Diversity: No
• External Pa Control: Yes
• Power Output (dbm): 10
• Receiver Sensitivity (dbm): -110
• Receive Current Consumption (ma): 9.0
• Transmit Current Consumption (ma): 18 at 5dBm
• Link Budget (dbm): 120

Table 3-1. Exemplary Bill of Materials (BoM) for Basic Application Schematic
8168C-MCU Wireless-02/10
Symbol
B1
F1
B1 + F1
CB1, CB3
CB2, CB4
CX1, CX2
C1, C2
C3
R1
XTAL
Description
SMD balun
SMD low pass filter
Balun/Filter combination
LDO VREG bypass capacitor 1 μF
Power supply bypass
capacitor
Crystal load capacitor
RF coupling capacitor
CLKM low-pass filter
capacitor
CLKM low-pass filter resistor
Crystal
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.
Value
800 – 1000 MHz
902 – 928 MHz
863 – 928 MHz
779 – 787 MHz
1 μF
12 pF
68 pF
2.2 pF
680 Ω
CX-4025 16 MHz
SX-4025 16 MHz
Manufacturer Part Number
Wuerth
JTI
Wuerth
JTI
JTI
JTI
AVX
Murata
AVX
Murata
Epcos
Epcos
AVX
AVX
Murata
ACAL Taitien
Siward
748431090
0900BL18B100
748131009
0915LP15A026
0896FB15A0100
0783FB15A0100
0603YD105KAT2A
GRM188R61C105KA12D
06035A120JA
GRP1886C1H120JA01
B37930
B37920
06035A680JAT2A
06035A229DA
GRP1886C1H2R0DA01
XWBBPL-F-1
A207-011
Comment
X5R
(0603)
COG
(0603)
COG
(0402 or 0603)
COG
(0603)
Designed for f
Designed for f
AT86RF212
10%
5%
5%
±0.5 pF
CLKM
CLKM
= 1 MHz
= 1 MHz
16 V
50 V
50 V
50 V
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