TH7111ENG Melexis Inc, TH7111ENG Datasheet - Page 14

• Manufacturer Part Number: TH7111ENG
• Description: IC RECEIVER FULL SIZE 44-LQFP
• Manufacturer: Melexis Inc

Specifications of TH7111ENG

• Rohs Status: RoHS non-compliant
• Frequency: 800MHz ~ 930MHz
• Sensitivity: -109dBm
• Data Rate - Maximum: 80 kbps
• Modulation Or Protocol: ASK, FM, FSK
• Applications: Alarm and Security Systems, RKE, TPMS
• Current - Receiving: 9.2mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LQFP
• Features: -
• Memory Size: -
• Other names: TH7111

FSK test circuit with AFC component list to Fig. 3
NIP – not in place, may be used optionally
TH7111 Data Sheet
3901007111
CERRES SMD type
SAWFIL
CERFIL
XTAL
Part
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
CP
VD
C1
C3
C4
C5
C6
C7
C8
C9
R1
R3
R4
R5
L1
L2
L3
L4
L5
SMD type
SOD-323
QCC8C
leaded
HC49-
Size
0805
0805
0603
0603
0603
0603
0603
0603
0805
0603
0603
0603
0603
0805
0805
0805
0603
0805
0805
0805
0805
0805
0603
0603
0603
0805
0805
SMD
type
CDACV10.7MG18-A
@ RF = 868.3 MHz
@ RF = 868.3 MHz
SFECV10.7MJS-A
@ B
Value / Type
@ B
25.22353 MHz
SFE10.7MFP
10 – 47 pF
10 – 47 pF
IF2
100 k
680 k
680 k
100 nH
100 nH
330 pF
680 pF
330 pF
IF2
6.8 nH
BB535
4.7 pF
2.7 pF
1.2 pF
1.5 pF
B3570
10 k
15 pF
22 pF
33 nF
27 pF
33 nF
33 nF
10 nF
12 nH
12 nH
1 nF
1 nF
1 nF
1 nF
NIP
= 150 kHz
= 40 kHz
B
25ppm calibra-
Tolerance
30ppm temp.
3dB
= 1.7 MHz
40 kHz
TBD
tion
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
Page 14 of 20
crystal series capacitor
loop filter capacitor
capacitor to match to SAW filter input
capacitor to match to SAW filter output
LNA output tank capacitor
MIX1 input matching capacitor
MIX1 blocking capacitor
IF1 tank capacitor
IFA feedback capacitor
IFA feedback capacitor
IFA feedback capacitor
DEMOD phase-shift capacitor
DEMOD coupling capacitor
ceramic resonator loading capacitor
demodulator output low-pass capacitor, depending on
data rate
demodulator output low-pass capacitor, depending on
data rate
RSSI output low-pass capacitor
integrator capacitor, fixed
integrator capacitor, @ 0.5 to 2 kbit/s NRZ
integrator capacitor, @ 2 to 20 kbit/s NRZ
integrator capacitor, @ 20 to 40 kbit/s NRZ
loop filter resistor
varactor diode biasing resistor
integrator resistor
integrator resistor
inductor to match SAW filter
inductor to match SAW filter
LNA output tank inductor
IF1 tank inductor
IF1 tank inductor
varactor diode from Infineon
fundamental-mode crystal, C
C
low-loss SAW filter from EPCOS
ceramic filter from Murata
ceramic demodulator tank from Murata
0, max
= 7 pF, R
m, max
= 50
FSK/FM/ASK Receiver
Description
load
= 10 pF to 15pF,
TH7111
868/915MHz
Nov. 2001
Rev. 005