CXD2932AGA-2 Просмотр технического описания (PDF) - Sony Semiconductor

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CXD2932AGA-2

GPS Base Band LSI

Sony Semiconductor 

CXD2932AGA-2

Initialization Setting

The device initialization is started by setting the reset pin (XRS) to low level. The timing should satisfy the

conditions noted below.

(1) During power-on (VDD = 3.0 to 3.6V, Topr = –40 to +85°C)

XPWRS should rise simultaneously with the power supply. XRS should rise 100ms or more after the power

supply and XPWRS have risen.

VDD

Power supply

XPWRS

XRS

100ms or more

VDD/2

VSS

(2) Initialization during operation (VDD = 3.0 to 3.6V, Topr = –40 to +85°C)

The internal registers can be initialized during operation by setting the XRS signal to low level for 100µs or

more. Keep the XPWRS signal at high level at this time. (The internal memory value is held.)

Power supply

XPWRS

VDD

XRS

1µs or more

VDD/2

VSS

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