User's Manual

AHS3-US Hardware Interface Overview
3.5 UICC/SIM/USIM Interface
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AHS3-US_HIO_v02.540 Page 25 of 39 2012-09-05
Confidential / Preliminary
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Figure 5: UICC/SIM/USIM interface
The total cable length between the SMT application interface pads pins on AHS3-US and the
pins of the external SIM card holder must not exceed 100mm in order to meet the specifications
of 3GPP TS 51.010-1 and to satisfy the requirements of EMC compliance.
To avoid possible cross-talk from the CCCLK signal to the CCIO signal be careful that both
lines are not placed closely next to each other. A useful approach is using the CCGND line to
shield the CCIO line from the CCCLK line.
Module
open: Card removed
closed: Card inserted
CCRST
CCVCC
CCIO
CCCLK
CCIN
SIM /
UICC
1n
220n
Board-to-board connector
CCGND