AT86RF211SDK E2V, AT86RF211SDK Datasheet - Page 17

• Manufacturer Part Number: AT86RF211SDK
• Description: KIT DEV FOR AT86RF211/915MHZ
• Manufacturer: E2V
• Series: Smart RFr
• Type: Transceiverr

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

2.2.7
5348B–WIRE–03/06
IF1 Narrow Bandwidth Filters
Figure 2-9.
Figure 2-10. Schematic Input of the IF1 Amplifier
Figure 2-11. Schematic Output of the Second Mixer
IF1 and IF2 filters can be replaced by a single narrowband 10.7 or 21.4 MHz crystal fil-
ter. This solution has the following advantages:
• Only one cheap IF1 filter is used, reducing costs
• Size is optimized
• Selectivity remains good, even if a very narrow 455 kHz filter is not used
IF1 Filtering
330 Ω
IF1OUT
(pin 36)
IF1DEC
IF1IN
C > 100 pF
1600 Ω
IF1
330 Ω
"or"
IF2OUT
20 k Ω
(pin 35)
IF1IN
AT86RF211S
330 Ω
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