TH72036
868/915MHz
FSK/ASK Transmitter
4.5 AC Characteristics
all parameters under normal operating conditions, unless otherwise stated;
typical values at TA = 23 °C and VCC = 3 V; test circuit shown in Fig. 6, fc = 868.3MHz
Parameter
Symbol
Condition
Min
Typ
Max
Unit
CW Spectrum Characteristics
Output power in step 0
(Isolation in off-state)
Poff
EN=1
-70
dBm
Output power in step 1
Output power in step 2
Output power in step 3
Output power in step 4
Phase noise
P1
P2
EN=1
EN=1
EN=1
EN=1
-13
-4
1
-12
-3
-11 1)
-2 1)
3.5 1)
9.5 1)
-82
dBm
dBm
P3
2.5
7.5
-87
dBm
P4
4
dBm
L(fm)
Pspur
@ 200kHz offset
dBc/Hz
dBm
Spurious emissions according
to EN 300 220-1 (2000.09)
table 13
47MHz< f <74MHz
87.5MHz< f <118MHz
174MHz< f <230MHz
470MHz< f <862MHz
B=100kHz
-54
f < 1GHz, B=100kHz
f > 1GHz, B=1MHz
-36
-30
dBm
dBm
Clock output Characteristics
Output low voltage CMOS
Output high voltage CMOS
VOL
VOH
depending on capaci-
tor CCK
and CKDIV
0.3*VCC
V
V
0.7*VCC
Start-up Parameters
Start-up time
ton
from standby to
transmit mode
0.6
1
ms
Frequency Stability
Frequency stability vs. supply
voltage
dfVCC
dfTA
ppm
ppm
ppm
±3
Frequency stability vs. tem-
perature
crystal at constant
temperature
±10
±20
Frequency stability vs. varia-
tion range of CRO
dfCRO
1) output matching network tuned for 5V supply
3901072036
Rev. 005
Page 10 of 16
Data Sheet
June/07
MELEXIS [ Melexis Microelectronic Systems ]
