XE1209
XE1209 is 30-70 KHZ ULTRA LOW POWER CMOS TRANSCEIVER manufactured by Xemics.
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Y@
!(8HPT
9hhÃTurr
Cvdd Vdd wupe n Level TEST SUPTEST V DDA V D D
100n F
V S S VSSA
Peak Detector
270p F 68m H 2.2n F
270p F
Sine Filter @2 fc
Low Pass Filter @ fc
Limiter
I Demodulator DA TA to u C
68m H
150k
Preampl +i Anti-Alias Filter Sine Filter @2 fc clk
+ to u C
Bit synchronizer
Low Pass Filter @ fc Q Limiter Q
47n F Vdd Cvref 30u H 100n F 280k Riref
V REF
Current Ref. Voltage Gen. rxen 0 9 0 Sequencer#2 (/ 8) Nx32.7K w upe n
IREF power management
Sequencer#1 (/ 2)
Nselect ext_osc en32Kout Pow er Management &3wire interface D E S C S D to u C
Phase/ Frequency Detector
Loop Filter
Prgm Divider N=18 or22
Quartz Oscill32...
