at86rf211 ATMEL Corporation, at86rf211 Datasheet - Page 5

• Manufacturer Part Number: at86rf211
• Description: Fsk Transceiver For Ism Radio Applications
• Manufacturer: ATMEL Corporation

Block Diagram
Figure 4. AT86RF211 Block Diagram
1942C–WIRE–06/02
These are the only blocks that depend
on the selected ISM band (433, 868
or 915 MHz): dual band applications
can be done by only switching them.
Synthesizer, loop filter, IF filter(s),
power supply decoupling are identical.
MATCHING
CIRCUIT
AERIAL
RPOWER
PA
TX/RX
PWR
CTRL
FILTER
RF
TX
Rx
LNA
GAIN MIN/MAX
MIXER1
10.245 MHz
20.945 MHz
FILTER
or
IF1
OSC
SYNTHESIZER
10.7 MHz
21.4 MHz
AMP
IF1
or
MIXER2
FREQUENCY
CTRL
Optional
FILTER
DATA
MSG
IF2
CONTROL LOGIC
RSSI LEVEL
DATA
CLK
455 kHz
SLE
SCK
AMP
IF2
SDATA
FM DISCRIMINATOR
BANDWIDTH CTRL
DATA SLICER
WAKE-UP
WAKE-UP
AT86RF211
OPTIONAL
FILTER
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