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CXD2932AGA-2

GPS Base Band LSI

Sony Semiconductor 

CXD2932AGA-2

Backup Mode

When the power supply of the GPS receiver system is off (XPWRS = low: the external pull-down is necessary)

and the reset state (XRS = low) is established, the device goes into the low power consumption state (backup

mode) where the all oscillators except for the timer stop. The whole internal memory status at this time is

retained and the Hot Start/Warm Start can be achieved. In order to cancel this mode, set the XRS pin to high

after XPWRS is set to high and then the oscillation stabilization time and the PLL lock-in time are waited.

(Normal operation / reset : VDD = 3.0 to 3.6V, backup mode : VDD = 2.0 to 3.6V)

OSC output

XPWRS

XRS

Normal

ED[31:0], EA[19:0]

PORT[15:0]

XCS[3:0], XWE[3:0],

XOE, XTCXO

TXD[1:0], CLKOUT

Backup

Reset

Normal

Oscillation stabilization time PLL lock-in time

(max. 1.0ms)

Pull-down output

Hi-Z output

High output

Low output

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