AT86RF211DAI-R Atmel, AT86RF211DAI-R Datasheet - Page 13

• Manufacturer Part Number: AT86RF211DAI-R
• Description: IC TXRX FR FSK 400-950MHZ 48-TQF
• Manufacturer: Atmel

Specifications of AT86RF211DAI-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: -

IF2 Filtering and Gain
1942C–WIRE–06/02
Figure 13. IF1 Filtering
Figure 14. Schematic Input of IF1 Amplifier
Figure 15. Schematic Output of the Second Mixer
IF2 filtering achieves a narrow channel selection. In case it is not used, it should be
replaced by a > 1 nF coupling capacitor, thus the IF1 filter is the only part achieving the
channel selection. Available commercial filters with a 35 kHz BW allow data rates up to
19.6 kbps if crystal temperature drifts are very low.
For faster communications and/or wider channelization, this ceramic filter can be
replaced by an LC band-pass filter as proposed hereafter.
330 Ω
IF1OUT
(pin 36)
IF1DEC
IF1IN
C > 100 pF
1600 Ω
IF1
330Ω
"or"
IF2OUT
20 k Ω
(pin 35)
IF1IN
330 Ω
AT86RF211
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