MLX90111 Просмотр технического описания (PDF) - Melexis Microelectronic Systems
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MLX90111 Datasheet PDF : 12 Pages
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MLX90111
128bit Read Write Transponder
MLX90111 Electrical Specifications
Operating Parameters are based on test set up (see Schematic below).
Toper = -40°C to 85°C, Operating frequency = 120kHz (unless otherwise specified)
Parameter
Symbol Test Conditions
Min Typ Max Units
Regulated supply voltage
VDD
(3)
3.0
4.0 V
Power On Level
VPOR Continuous normal reading of the ID 1.55 1.8 2.2 V
Sensitivity level (e.m.f.)
Vacsens Continuous normal reading of the ID 200 170
mV
Modulation Depth ASK
Weak power: Vacmin = 200mVpp
0.2
4 V(4)
Medium power: Vac = 5Vpp
2.8
7.5 V(4)
High power: Vac = 20Vpp
5
10 V(4)
EEPROM writing supply voltage Vacee Critical reading ID
1
V
EEPROM writing supply current Iee
10
µA
ACP modulation depth
EEPROM data retention
Vachigh=Vacee
Tret
Critical reading ID
20
10
% (5)
year
EEPROM write cycles
Ncycle Critical reading ID
100k
cycles
Coil-GND tune capacitor
Toper=25oC
200
pF(6)
Total Tuning range
Toper=25oC, 5bits
124
pF(6)
Tuning accuracy
Toper=25oC, LSB/2
2.0
pF(6)
DC input current clamping
IclampLow VdutDC = +/- 2V
40 1000 NA
IclampHigh VdutDC = +/- 10V
1
3.5
10 mA
Notes:
Note (1): Specifications are tested 100% or
guaranteed by characterization.
Note (2): All specifications are valid for Manchester
and Biphase encoding, and for 2kbaud and 4kbaud
data rate options.
Note (3): Maximum supply voltage is generated by
forcing 10mA between coil and ground pin.
Note (4): Min = Vbottom (modulation on),
Max = Vtop (modulation off).
L=6.8mH
Vin Cpar=10pF
Vdut
COIL
Qrc @ 120KHz=48.8
C1+C2=250pF
Vac
C1
C2 90111
DUT
GND
Note (5): Modulation depth is calculated as Vachigh -Vaclow / Vachigh + Vaclow. Lower modulation depths may
be applied, but the performance of the system may vary along the distance between reader and transponder coil.
Higher modulation levels will reduce the maximum Write distance.
Note (6): Lot to lot spread on capacitance is 20%. Temperature shift is typically 0% on -40°C, and +1% at 85°C.
MLX90111 128bit Read Write Transponder Page 2 of 12
Rev 1.12 5-Feb-01
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