TH72035_12 Datasheet, PDF (8/20 Pages) Melexis Microelectronic Systems – FSK/ASK Transmitter

TH72035
868/915MHz
FSK/ASK Transmitter
4 Electrical Characteristics
4.1 Absolute Maximum Ratings
Parameter
Supply voltage
Input voltage
Storage temperature
Junction temperature
Thermal Resistance
Power dissipation
Electrostatic discharge
Symbol
Condition
V_CC
V_IN
T_STG
T_J
R_thJA
P_diss
V_ESD
human body model (HBM)
according to CDF-AEC-
Q100-002
Min
0
-0.3
-65
±2.0
Max
7.0
V_CC+0.3
150
150
49
0.12
Unit
V
V
°C
°C
K/W
W
kV
4.2 Normal Operating Conditions
Parameter
Supply voltage
Operating temperature
Input low voltage CMOS
Input high voltage CMOS
XOSC frequency
VCO frequency
FSK deviation
FSK Data rate
ASK Data rate
Symbol
Condition
V_CC
T_A
V_IL ENTX, DTA pins
V_IH ENTX, DTA pins
f_ref set by the crystal
f_c
f_c = 32 • f_ref
∆f depending on CX1, CX2
and crystal parameters
R NRZ
R NRZ
Min
1.95
-40
0.7*V_CC
26.6
850
±2.5
Max
5.5
125
0.3*V_CC
29
930
±60
40
40
Unit
V
°C
V
V
MHz
MHz
kHz
kbit/s
kbit/s
4.3 Crystal Parameters
Parameter
Crystal frequency
Load capacitance
Static capacitance
Series resistance
Spurious response
Symbol
Condition
f₀ fundamental mode, AT
C_L
C₀
R₁
a_spur only required for FSK
39010 72035
Rev. 011
Page 8 of 20
Min
Max
Unit
26.6
29
MHz
10
15
pF
7
pF
50
Ω
-10
dB
Data Sheet
Jan/12