XE1209 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – 30-70 KHZ ULTRA LOW POWER CMOS TRANSCEIVER

270pF 270pF
INA
INB
Vdd
100nF
47nF
VREF
Cvref
280k
IREF
Riref
wupen
Peak
Detector
Pream+pli
Anti-Alias Filter
Current Ref.
Voltage Gen.
Level
Sine
Filter
@ 2 fc
Sine
Filter
@ 2 fc
TEST
Low Pass
Filter @ fc
Low Pass
Filter @ fc
power
management
Phase/
Frequency
Detector
Sequencer #1
(/ 2)
N x 32.7K
0 90
Sequencer #2
(/ 8)
Loop Filter
VCO
Prgm Divider
N=18 or 22
SUPTEST
Cvdd
Vdd
100nF
VDDA VDD
VSS VSSA
I
Limiter
Q
Limiter
I
Demodulator
clk
+
Bit synchronizer
Q
rxen wupen
Quartz
Oscill 32 K
N select
ext_osc
en32Kout
On/Off
Power
Management
& 3 wire
interface
DATA ^{to uC}
to uC
DCLK
to uC
DE
SC
SD
RE
Y@ !(8HPT
9h‡hÃTurr‡
PAOUT
VSSPA
Prgm
Power
Amplifier
Phase
MSB
Accum.
12
QIN
QOUT
Xtal
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