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MICRF218 Datasheet(PDF) 11 Page - Micrel Semiconductor

Part # MICRF218
Description  3.3V, 315/433MHz Wide-IF Bandwidth ASK Receiver
PDF  23 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MICRF218 Datasheet(HTML) 11 Page - Micrel Semiconductor

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Micrel
MICRF218
November 2011
11
M9999-111111
(408) 944-0800
+3V
C4
0.047µF
C2
2.2pF
J2
RF IN
C5
4.7µF
C3
33pF
U1 MICRF218AYQS
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
RO1
GNDRF
ANT
GNDRF
VDD
IF_BW
SEL0
SHDN
GND
DO
SEL1
CTH
CAGC
RSSI
NC
RO2
C5
100nF
L2
3.9nH
Y1
9.8131MHz
1
2
C1
NP
J1
REFOSC
JPR1
0 OHMS
JPR2
NP
R11
100k
TSDF1220W
Q2
TSDF1220W
Q1
R7
100k
Y2
12.1287MHz
R2
NP
R1
NP
+3V
R6
10k
R9
10k
R10
100k
+3V
R8
10k
R4
0 OHMS
C7
NP
1
2
J4
CON2
IF BANDWIDTH
CONTROL
EXTERNAL REFERENCE
OSCILLATOR INPUT
VDD = WIDE BANDWIDTH
0V = NARROW BANDWIDTH
1
2
3
4
5
6
7
R5
100K
R3
NP
+3V
3.0 to 3.3V
3.0 to 3.3V
COM
SHDN
DO
REF-OSC CNTR
COM
J3
DATA OUT
L3
ZCB-0603
Notes:
1. 0V = Common
2. VDD Input = 3.0 to 3.3V
3. Ref-Osc Control:
0V = 315 MHz Operation,
VDD = 390.1 MHz Operation
L3
100nH
L4
100nH
NP = Not Placed
Figure 4. Dual Frequency QR218BP_SWREF, 315 MHz and 390 MHz



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