LRI2K-MBTG/2GE STMicroelectronics, LRI2K-MBTG/2GE Datasheet - Page 19
LRI2K-MBTG/2GE
Manufacturer Part Number
LRI2K-MBTG/2GE
Description
Manufacturer
STMicroelectronics
Datasheet
1.LRI2K-MBTG2GE.pdf
(86 pages)
Specifications of LRI2K-MBTG/2GE
Operating Temperature (max)
85C
Mounting
Surface Mount
Pin Count
8
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Compliant
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LRI2K
4
4.1
4.2
4.3
Communications signal from LRI2K to VCD
The LRI2K has several modes defined for some parameters, owing to which it can operate
in different noise environments and meet different application requirements.
Load modulation
The LRI2K is capable of communication with the VCD via an inductive coupling area
whereby the carrier is loaded to generate a subcarrier with frequency f
generated by switching a load in the LRI2K.
The load-modulated amplitude received on the VCD antenna shall be at least 10 mV when
measured as described in the test methods defined in International Standard ISO 10373-7.
Subcarrier
The LRI2K supports the one-subcarrier and two-subcarrier response formats. These
formats are selected by the VCD using the first bit in the protocol header. When one
subcarrier is used, the frequency f
When two subcarriers are used, frequency f
484.28 kHz (f
continuous phase relationship between f
Data rates
The LRI2K can respond using the low or the high data rate format. The selection of the data
rate is made by the VCD using the second bit in the protocol header. It also supports the x2
mode available on all the Fast commands.
by the LRI2K using the different response format combinations.
Table 4.
High
Low
Standard commands
Fast commands
Standard commands
Fast commands
Data rate
Response data rate
C
/28). When using the two-subcarrier mode, the LRI2K generates a
S1
of the subcarrier load modulation is 423.75 kHz (f
13.24 Kbits/s (f
6.62 Kbits/s (f
26.48 Kbits/s (f
52.97 Kbits/s (f
One subcarrier
S1
Table 4
and f
S1
Communications signal from LRI2K to VCD
is 423.75 kHz (f
S2
.
c
shows the different data rates produced
c
/2048)
c
c
/1024)
/512)
/256)
C
/32), and frequency f
6.67 Kbits/s (f
26.69 Kbits/s (f
Two subcarriers
S
not applicable
not applicable
. The subcarrier is
c
/2032)
c
/508)
S2
C
/32).
19/86
is
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