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EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
4.1.1
Board Component Values for FSK Reception
Part
C0
C1
C2
C3
C4
C5
CB0
CB1
CB2
CB4
CB5
CB6
CB7
CF1
CF2
CPS
CX1
CX2
CRX0
CTX0
CTX1
CTX2
CTX4
RB1
RF
RP
RL0
RPS
RS1...RS3
L0
L1
LRX2
LTX0
LTX1
LX
Size
0603
0603
0603
0603
0603
0603
1210
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
Value @
315 MHz
1.2 pF
3.9 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μ F
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
68 pF
10 nF
8.2 pF
150 pF
100 pF
10 pF
10 pF
10 pF
12 pF
100 Ω
47 k Ω
3.3 k Ω
390 Ω
22 k Ω
10 k Ω
47 nH
33 nH
82 nH
15 nH
33 nH
0 Ω
Value @
433.92
MHz
1.5 pF
5.6 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μ F
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
120 pF
10 nF
10 pF
56 pF
100 pF
10 pF
6.8 pF
6.8 pF
4.7 pF
100 Ω
47 k Ω
3.3 k Ω
390 Ω
33 k Ω
10 k Ω
22 nH
15 nH
56 nH
15 nH
33 nH
0 Ω
Value @
868.3 MHz
1.8 pF
2.2 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μ F
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
150 pF
10 nF
12 pF
18 pF
100 pF
10 pF
5.6 pF
3.9 pF
2.2 pF
100 Ω
33 k Ω
3.3 k Ω
390 Ω
47 k Ω
10 k Ω
3.9 nH
4.7 nH
15 nH
3.9 nH
10 nH
10 nH
Value @
915 MHz
0.82 pF
1.8 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μ F
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
82 pF
10 nF
12 pF
15 pF
100 pF
10 pF
4.7 pF
3.9 pF
1.8 pF
100 Ω
33 k Ω
3.3 k Ω
390 Ω
47 k Ω
10 k Ω
3.9 nH
4.7 nH
15 nH
3.9 nH
10 nH
10 nH
Tol.
± 5%
± 5%
± 5%
± 10%
± 5%
± 10%
± 20%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 5%
± 10%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
Description
VCO tank capacitor
LNA output tank capacitor
MIX input matching capacitor
data slicer capacitor
demodulator output low-pass
capacitor, depending on data rate
RSSI output low pass capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
de-coupling capacitor
loop filter capacitor
loop filter capacitor
power-select capacitor
RO capacitor for FSK ( Δ f = ± 20 kHz)
RO capacitor for FSK ( Δ f = ± 20 kHz)
RX coupling capacitor
TX coupling capacitor
TX impedance matching capacitor
TX impedance matching capacitor
TX impedance matching capacitor
protection resistor
loop filter resistor
CERDIS loading resistor
CERFIL loading, optionally
power-select resistor
protection resistor
VCO tank inductor
from Würth-Elektronik (WE-KI series)
or equivalent part
LNA output tank inductor
from Würth-Elektronik (WE-KI series)
or equivalent part
impedance matching inductor
from Würth-Elektronik (WE-KI series)
or equivalent part
RO inductor
XTAL
CERFIL
CERDIS
HC49
SMD
7x5
SMD
3.45x3.1
SMD
4.5x2
7.1505 MHz
± 20ppm cal., ± 20ppm temp.
SFECF10M7HA00
B 3dB = 180 kHz
CDSCB10M7GA136
fundamental-mode crystal from:
Telcona/Hong Kong X’tals
C5L7150500D10F3EHK02
ceramic filter from Murata,
or equivalent part
ceramic Discriminator from Murata,
or equivalent part
39012 07122 02
Rev. 006
Page 14 of 24
EVB Description
June/08
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