TH72031_12 Datasheet, PDF (9/20 Pages) Melexis Microelectronic Systems – FSK Transmitter

4.4 DC Characteristics
TH72031
868/915MHz
FSK Transmitter
all parameters under normal operating conditions, unless otherwise stated;
typical values at T_A = 23 °C and V_CC = 3 V
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Operating Currents
Standby current
Supply current in power step 0
Supply current in power step 1
Supply current in power step 2
Supply current in power step 3
Supply current in power step 4
Digital Pin Characteristics
I_SBY ^ENTX=0
I_CC0 ENTX=1
I_CC1 ENTX=1
I_CC2 ENTX=1
I_CC3 ENTX=1
I_CC4 ENTX=1
10
4000
nA
2.5
3.9
5.7
mA
3.5
5.1
7.3
mA
4.5
6.4
8.8
mA
6.2
8.6
11.4
mA
9.4
13.4
17.3
mA
Input low voltage CMOS
V_IL ENTX, FSKDTA pins -0.3
0.3*V_cc
V
Input high voltage CMOS
V_IH ENTX, FSKDTA pins 0.7*V_CC
V_CC+0.3
V
Pull down current ENTX
I_PDEN ENTX=1
0.2
2.0
20
µA
Low level input current ENTX I_INLEN ENTX=0
0.02
µA
High level input current FSKDTA I_INHDTA FSKDTA=1
0.02
µA
Pull up current FSKDTA active I_PUDTAa FSKDTA=0, ENTX=1 0.1
1.5
12
µA
Pull up current FSKDTA standby I_PUDTAs FSKDTA=0, ENTX=0
0.02
µA
FSK Switch Resistance
MOS switch On resistance
R_ON FSKDTA=0
ENTX=1
20
70
Ω
MOS switch Off resistance
R_OFF FSKDTA=1
1
MΩ
ENTX=1
Power Select Characteristics
Power select current
I_PSEL
Power select voltage step 0
V_PS0
Power select voltage step 1
V_PS1
Power select voltage step 2
V_PS2
Power select voltage step 3
V_PS3
Power select voltage step 4
V_PS4
Low Voltage Detection Characteristic
ENTX=1
ENTX=1
ENTX=1
ENTX=1
ENTX=1
ENTX=1
7.0
8.6
9.9
µA
0.035
V
0.14
0.24
V
0.37
0.60
V
0.78
1.29
V
1.55
V
Low voltage detect threshold
V_LVD ENTX=1
1.75
1.85
1.95
V
3901072031
Rev. 012
Page 9 of 20
Data Sheet
Jun/12