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AC65/AC75 Hardware Interface Description
Confidential / Preliminary
s
AC65/AC75_hd_v00.372 Page 60 of 118 2006-08-03
GSM module
I2CDAT
I2CCLK
GND
I2CDAT
I2CCLK
GND
Application
VEXT
R
p
R
p
Figure 20: I
2
C interface connected to VEXT line of AC65/AC75
Note: Good care should be taken when creating the PCB layout of the host application: The
traces of I2CCLK and I2CDAT should be equal in length and as short as possible.