EVB7122 Datasheet, PDF (14/24 Pages) Melexis Microelectronic Systems – 27 to 930MHz Transceiver Evaluation Board Description

EVB7122
27 to 930MHz Transceiver
Evaluation Board Description
4.1.1 Board Component Values for FSK Reception
Part
Size
Value @
315 MHz
Value @
433.92
MHz
Value @
868.3 MHz
Value @
915 MHz
Tol.
Description
C0
C1
C2
C3
C4
C5
CB0
CB1
CB2
CB4
CB5
CB6
CB7
CF1
CF2
CX1
CX2
CRX0
CTX0
CTX1
CTX2
CTX4
RB1
RF
RP
RL0
RPS
RS1...RS3
0603
0603
0603
0603
0603
0603
1210
0603
0603
0603
0603
0603
0603
0603
0603
0805
0805
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
L0
0603
0.47 pF
3.9 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
100 pF
8.2 pF
150 pF
100 pF
10 pF
10 pF
10 pF
12 pF
100 Ω
33 kΩ
3.3 KΩ
390 Ω
18 kΩ
10 kΩ
56 nH
L1
0603
LRX2
LTX0
LTX1
XTAL
CERFIL
CERDIS
0603
0603
0603
HC49
SMD
7x5
SMD
3.45x3.1
SMD
4.5x2
33 nH
82 nH
15 nH
33 nH
NIP
4.7 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
68 pF
10 pF
56 pF
100 pF
10 pF
6.8 pF
6.8 pF
4.7 pF
100 Ω
33 kΩ
3.3 KΩ
390 Ω
33 kΩ
10 kΩ
33 nH
1.8 pF
1.8 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
150 pF
12 pF
18 pF
100 pF
10 pF
5.6 pF
3.9 pF
2.2 pF
100 Ω
33 kΩ
3.3 KΩ
390 Ω
43 kΩ
10 kΩ
4.7 nH
1.5 pF
1 pF
1.5 pF
10 nF
330 pF
1.5 nF
10 μF
10 nF
330 pF
10 nF
100 nF
100 pF
100 nF
1 nF
82 pF
12 pF
15 pF
100 pF
10 pF
4.7 pF
3.9 pF
1.8 pF
100 Ω
33 kΩ
3.3 KΩ
390 Ω
43 kΩ
10 kΩ
3.9 nH
15 nH
4.7 nH
4.7 nH
56 nH
15 nH
33 nH
15 nH
3.9 nH
10 nH
15 nH
3.9 nH
10 nH
7.1505 MHz
±20ppm cal., ±20ppm temp.
SFECF10M7HA00
B_3dB = 180 kHz
CDSCB10M7GA136
±5% VCO tank capacitor
±5% LNA output tank capacitor
±5% MIX input matching capacitor
±10% data slicer capacitor
±5% demodulator output low-pass
capacitor, depending on data rate
±10% RSSI output low pass capacitor
±20% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% de-coupling capacitor
±10% loop filter capacitor
±5% loop filter capacitor
±5% RO capacitor for FSK (Δf = ±20 kHz)
±5% RO capacitor for FSK (Δf = ±20 kHz)
±5% RX coupling capacitor
±5% TX coupling capacitor
±5% TX impedance matching capacitor
±5% TX impedance matching capacitor
±5% TX impedance matching capacitor
±5% protection resistor
±5% loop filter resistor
±5% CERDIS loading resistor
±5% CERFIL loading, optionally
±5% power-select resistor
±5% protection resistor
VCO tank inductor
±5% from Würth-Elektronik (WE-KI series)
or equivalent part
LNA output tank inductor
±5% from Würth-Elektronik (WE-KI series)
or equivalent part
±5% _{impedance matching inductor}
±5% from Würth-Elektronik (WE-KI series)
±5% ^{or equivalent part}
fundamental-mode crystal from:
Telcona/Hong Kong X’tals
C5L7150500D10F3EHK02
ceramic filter from Murata,
or equivalent part
ceramic Discriminator from Murata,
or equivalent part
Note: - NIP – not in place, may be used optionally
39012 07122 02
Rev. 005
Page 14 of 24
EVB Description
June/07