Product Info
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 GNSS Interface
- 2.4 Sample Application
- 3 Operating Characteristics
- 3.1 Operating Modes
- 3.2 Power Up/Power Down Scenarios
- 3.3 Power Saving
- 3.4 Power Supply
- 3.5 Operating Temperatures
- 3.6 Electrostatic Discharge
- 3.7 Blocking against RF on Interface Lines
- 3.8 Reliability Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
TX62-W(-B/-C)/TX82-W Hardware Interface Description
2.1 Application Interface
69
t TX62-W_TX62-W-x_TX82-W_HID_v01.000 2021-05-19
Confidential / Preliminary
Page 37 of 154
The figure below shows a circuit to connect an external SIM card holder.
Figure 13: External UICC/SIM/USIM card holder circuit
The total cable length between the SMT application interface pads on TX62/TX82 and the pads
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 a GND line to shield
the CCIO line from the CCCLK line.
An example for an optimized ESD protection for the SIM interface is shown in Section 2.1.6.1.
It is possible to connect the UICC/USIM/SIM interface lines to an external SIM card multiplexer
controlled by the module’s SIM_SWITCH signal. Thus, it becomes possible to switch between
two networks/subscriptions each with its own UICC, and maybe different connection speeds.
See also Section 2.1.11.4.
SIM
CCVCC
CCRST
CCIO
CCCLK
220nF
2
1nF
2
CCIN
V180
10pF
1,2
10pF
1,2
1
= Optional 10pF for SIM protection for RF blocking (internal antenna)
2
= Capacitors should be placed near to the SIM connector or eUICC