EM4102 datasheet(3/7 Pages) EMMICRO

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EM4102

www.emmicroelectronic.com

Electrical Characteristics

VDD = 1.5V, VSS = 0V,

fC1 = 134kHz square wave, Ta = 25°C

VC1 = 1.0V with positive peak at VDD and negative peak at VDD -1V unless otherwise specified

Parameter

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Supply Voltage

Rectified Supply Voltage

Coil1 - Coil2 Capacitance

Power Supply Capacitor

VDD

VDDREC

Cres

Csup

VCOIL1 - VCOIL2 = 2.8 VDC

Modulator switch = “ON”

Vcoil=100mVRMS

f=10kHz

1.5

78 2)

125

Manchester and biphase

versions

Supply Current

C2 pad Modulator ON

voltage drop

PSK version

Supply Current

C2 pad Modulator ON

voltage drop

IDD

VONC2

IDDPSK

VONC2PSK

VDD=5.0V

IVDDC2=1mA

with ref. to VDD

VDD=5.0V

IVDDC2=100µA

with ref. to VDD

150

500

0.6

220

0.9

650

1.5

280

2.0

800

µA

Note 1)

The maximum voltage is defined by forcing 10mA on COIL1 - COIL2

Note 2)

The tolerance of the resonant capacitor is ± 15% over the whole production.

On a wafer basis, the tolerance is ± 2%

Timing Characteristics

VDD = 1.5V, VSS = 0V, fcoil = 134kHz square wave, Ta = 25°C

VC1 = 1.0V with positive peak at VDD and negative peak at VDD -1V unless otherwise specified

Timings are derived from the field frequency and are specified as a number of RF periods.

Parameter

Symbol

Test Conditions

Value

Units

Read Bit Period

Trdb

depending on option

64, 32, 16

RF periods

Timing Waveforms

BIT n

BIT n+1

BIT n+2

64, 32 or 16 TOC, depending on option

TOC

COIL1

Serial Data Out

Fig. 4

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