AT86RF211SDK E2V, AT86RF211SDK Datasheet - Page 11
AT86RF211SDK
Manufacturer Part Number
AT86RF211SDK
Description
KIT DEV FOR AT86RF211/915MHZ
Manufacturer
E2V
Series
Smart RFr
Type
Transceiverr
Datasheet
1.AT86RF211SDK.pdf
(66 pages)
Specifications of AT86RF211SDK
Frequency
915MHz
For Use With/related Products
AT86RF211 @ 915MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT86RF211-DK
AT86RF211-DK915107
AT86RF211DK
AT86RF211DK915107
AT86RF211DK915107
AT86RF211-DK915107
AT86RF211DK
AT86RF211DK915107
AT86RF211DK915107
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2. Detailed Description
2.1
2.1.1
Figure 2-2.
5348B–WIRE–03/06
C L = 16 pF
Frequency Synthesis
Crystal Reference Oscillator
15 pF
(1)
Typical Networks
XTAL1
C1 = 82 pF
6.5/30 pF
The reference clock is based on a classic Colpitts architecture with three external
capacitors.
The bias circuitry of the oscillator is optimized to produce a low drive level for the XTAL.
This reduces XTAL aging.
Note:
Figure 2-1.
Notes:
Any parallel-mode 10.245, 20.5 or 20.945 MHz crystal can be used. Its load capacitance
must be between 10 and 20 pF.
(2)
XTAL2
C2 = 56 pF
The PLL is only activated when the oscillator is stabilized.
1. Various load capacitance (C
2. Thanks to the synthesizer’s fine steps (200 Hz), the trimmer capacitor can be
surrounding network (C1, C2) must be re-calculated.
replaced by adjusting the software.
Crystal Oscillator Inputs
R = 3.3 kΩ
C L = 20 pF
XTAL2
XTAL1
33 pF
(1)
L
) crystals can be used. If C
XTAL1
C1 = 68 pF
6.5/30 pF
(2)
XTAL2
L
AT86RF211S
differs from 16 or 20 pF, the
C2 = 68 pF
R = 3.3 kΩ
11
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