Rf Connection - Sierra Wireless MC5725V Hardware Integration Manual

CDMA and GSM / UMTS Mini Card Hardware Integration Guide
Note: To disconnect the
antenna, make sure you use the
Hirose U.FL connector removal
tool (P/N UFL-LP-N-2(01)) to
prevent damage to the module
or coaxial cable assembly.
18
In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
Table 3-1: MC87xx— Supported frequencies
Product
MC8792V
MC8775V
MC8780
MC8781
MC8785V
MC8790
MC8790V
MC8791V
MC8792V

RF connection

When attaching an antenna to the module:
Use a Hirose U.FL connector (model
•
U.FL #CL331‐0471‐0‐10) to attach an antenna to a
connection point on the module, as shown in Figure 3‐1 (the
main RF connector on the top side; the diversity RF or GPS
connector on the bottom side).
Match coaxial connections between the module and the
•
antenna to 50 Ω.
Minimize RF cable losses to the antenna; the recommended
•
maximum cable loss for antenna cabling is 0.5 dB.
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Band Frequencies (MHz)
Band VIII Tx: 880–915
UMTS 900 Rx: 925–960
GPS 1575.42
2130114