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SkyTraq Technology, Inc. Preliminary Draft www.skytraq.com.tw
APPLICATION CIRCUIT
When PX1100S has previously been used within 2 hour, for faster time to first fix powering up without needing to
decoded ephemeris data from signal, V_BCKP should be connected to non-volatile supply; above figure with V_BCKP
connected to rechargeable battery is an example implementation. If cold starting every time powering up is not an
issue, V_BCKP can be connect to VCC.
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