TH71081 Просмотр технического описания (PDF) - Melexis Microelectronic Systems
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TH71081 Datasheet PDF : 12 Pages
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Not recommended for new designsTH71081
868/915MHz
ASK Transmitter / LO Source
4 Electrical Characteristics
4.1 Absolute Maximum Ratings
Parameter
Symbol
Condition
Supply voltage
Input voltage
Storage temperature
Junction temperature
Thermal Resistance
Power dissipation
Electrostatic discharge
1) all pins except OUT1, OUT2
VCC
VIN
TSTG
TJ
RthJA
Pdiss
VESD1 human body model, 1)
VESD2 human body model, 2)
2) pins OUT1, OUT2
Min
Max
Unit
0
7.0
V
-0.3
VCC+0.3
V
-65
150
°C
150
°C
163
K/W
0.12
W
-1.0
+1.0
kV
-0.75
+0.75
4.2 Normal Operating Conditions
Parameter
Supply voltage
Operating temperature
Input low voltage CMOS
Input high voltage CMOS
XOSC frequency
Symbol
Condition
VCC
TA
VIL ENTX pin
VIH ENTX pin
fref set by the crystal
VCO frequency
Data rate ASK
FM deviation
Modulation frequency FM
fc
RASK
∆fFM
fmod
fc = 32 • fref
NRZ
TA < 70°C,
VCC ≥ 2.5V
Min
2.2
-30
0.7*VCC
26.5
850
Max
5.5
85
0.3*VCC
28.75
890
920
40
±6
5
Unit
V
°C
V
V
MHz
MHz
kbit/s
kHz
kHz
4.3 Crystal Parameters
Parameter
Crystal frequency
Load capacitance
Static capacitance
Resonance resistance
Symbol
Condition
f0 fundamental mode, AT
CL
C0
R1
Min
Max
Unit
26.5
28.75
MHz
10
15
pF
7
pF
40
Ω
3901071081
Rev. 009
Page 6 of 12
Data Sheet
May/05
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