AT86RF211SAH-R Atmel, AT86RF211SAH-R Datasheet - Page 23

IC RF TXRX FSK 400-950MHZ 48TQFP

AT86RF211SAH-R

Manufacturer Part Number
AT86RF211SAH-R
Description
IC RF TXRX FSK 400-950MHZ 48TQFP
Manufacturer
Atmel
Datasheet

Specifications of AT86RF211SAH-R

Frequency
400MHz ~ 950MHz
Data Rate - Maximum
100kbps
Modulation Or Protocol
FSK
Applications
ISM
Power - Output
7dBm ~ 12dBm
Sensitivity
-107dBm
Voltage - Supply
2.4 V ~ 3.6 V
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP Exposed Pad, 48-eTQFP, 48-HTQFP, 48-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Memory Size
-
Current - Transmitting
-
Current - Receiving
-
Figure 2-18. Data Slicing Parameters Setup Example
5348B–WIRE–03/06
Demodulated
DISCOUT:
Data
Figure 2-17. Data Slicer Schematics
To operate this way, one must make sure that the 0 and 1 levels at the output of the dis-
criminator appear "on both sides" of the comparison level in order for the decision to be
made properly.
To set the discriminator and data slicer accordingly:
These procedures are made automatically by the software. Refer to the Application
Note "
• The output DC level of the discriminator DISCOUT can be measured (using the A/D
• The DC level can be shifted up or down at the output of the discriminator through the
• The comparison threshold can be tuned around V
embedded converter)
DTR[1:0] bit:
levels are possible, with an LSB equal to 15 mV per volt of supply voltage. V
corresponds to DTR[5:2] = 0111, and the RESET value is 1000.
– DTR[1] = 1: +180 mV + 77 × (V
– DTR[0] = 1: -180 mV - 77 × (V
“Data Demodulation and Crystal Selection for the AT86RF211S”
Choice of internal or
external reference for
the data slicer
OK
DATAMSG
+
-
CC
CC
Not OK
- 2.4V)
Vdd/2
- 2.4V)
+
-
+
Σ
+
-
+
Comparator Threshold
100 kΩ
4 bits
CC
/2 through the DTR[5:2] bit. 16
SKFILT
AT86RF211S
DSIN
DISCOUT
reference 5418.
Time
CC
/2
23

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