TH7121 Datasheet, PDF (21/28 Pages) List of Unclassifed Manufacturers – 300 to 930MHz FSK/FM/ASK Transceiver

TH7121
300 to 930MHz
FSK/FM/ASK Transceiver
FSK test circuit component list to Fig. 4 and Fig. 5
Part
Size
Value
Tolerance
Description
@ 868.3 MHz
C0
0805
8.2 pF
±5%
VCO tank capacitor
C1
0603
NIP
±5%
LNA output tank capacitor
C2
0603
1 pF
±5%
MIX input matching capacitor
C3
0805
10 nF
±10%
data slicer capacitor
C4
0805
100 pF
±10%
demodulator output low-pass capacitor,
depending on data rate
C5
0805
330 pF
±10%
RSSI output low pass capacitor
CB0
0805
100 nF
±10%
blocking capacitor
CB1 to CB4
0805
0603
330 pF
±10%
blocking capacitor
CB5
CB6
CB7
CF1
CF2
CX1
CX2
CP0
CRX0
CTX0
RB
RP
RF
RF1
RPS
L0
L1
LTX0
PRELIMINARY 0603
0603
0603
0805
0805
0805
0805
0805
0603
0603
0805
0805
0805
0805
0805
0805
0603
0805
330 pF
10 nF
330 pF
2.2 nF
100 pF
15 pF
33 pF
10 - 12 pF
100 pF
10 pF
10 Ω
3.9 KΩ
82 kΩ
9.1 kΩ
NIP
2.2 nH
10 nH
2.2 nH // 2.7 pF
±10%
±10%
±10%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
±10%
±5%
±5%
±5%
±5%
±5%
±5%
±5%
blocking capacitor
blocking capacitor
blocking capacitor
loop filter capacitor
loop filter capacitor
RO capacitor
RO capacitor for FSK (∆f = ±20 kHz)
CERRES parallel capacitor
RX coupling capacitor
TX coupling capacitor
blocking resistor for VCC
CERFIL parallel resistor
loop filter resistor
loop filter resistor
power-select resistor, only required
at fixed-frequency operation
VCO tank inductor
LNA output tank inductor
TX impedance matching inductor
VD1
SOD-323
BBY-03W
varactor diode from Infineon
XTAL
HC49-SMD
7.1505 MHz
±30ppm calibr. fundamental-mode crystal, Cload = 10 pF to 15pF,
±30ppm temp. C0, max = 7 pF, Rm, max = 70 Ω
CERFIL
Leaded
SFE10.7MFP @
TBD
ceramic filter from Murata
type
BIF2 = 40 kHz
CERRES
SMD
type
SMD type
SFECV10.7MJS-A
@ BIF2 = 150 kHz
CDACV10.7MG18-A
±40 kHz
ceramic filter from Murata
ceramic demodulator tank from Murata
Notes:
• NIP – not in place, may be used optionally
• Antenna matching network according to Evaluation Board Description EVB7120
3901007121
Rev. 001
Page 21 of 28
Data Sheet
Jan. 2002