AMS AS3930 Manual - Page 10

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AS3930 Standard Board

4.2.1.12

General Settings

AGC only on carrier burst: The automatic gain control is active only on the first carrier burst.

AGC UP-DOWN: The automatic gain control is operating in both directions (up and down). At the

beginning the gain of the channel amplifier is set to the maximum and the AGC reduces it according

to the received signal input level. If AGC UP-DOWN is disabled the AGC can only decrease the

gain for the whole duration of the data reception. In this mode the system holds the RSSI peak.

4.2.1.13

Enable correlator: If the correlator is enabled the chip searches first for the preamble bits and then

for the data pattern (Manchester encoded Wakeup Pattern). Should the pattern correlation be

disabled, the AS3930 goes directly in data receiving mode.



Single pattern: The wakeup pattern is sent as single string.



Double pattern: The wakeup pattern is doubled.

4.2.1.14

The Symbol Rate can be adjusted between 512 Symbols/s and 4096 Symbols/s. The symbol rate

defines the duration of one bit via the 32.768 kHz Clock in order to recover the data.

4.2.1.15

It is possible to enable the artificial wakeup with a period between 1s and 2 hours.

4.2.1.16

The Clear Wake Button resets the WAKE pin manually.

4.2.1.17

Reset the current RSSI measurement.

4.3

The False Wakeup register counts the number of frequency detections that do not match the

wakeup pattern. The accumulated number of false wakeups can be reset via the Clear False

Wakeup button.

4.4

All adjustments that are made to the settings can be saved via "Store Settings" in the lower right

corner of the 'Transmitter' tab. The settings can be reset to the default configuration by pushing the

button "Restore Default Settings".

Note: A possible Firmware Update can be done via Help/Firmware Update (Ctrl+F). Load the latest

*.bin file for the transmitter and update the firmware.

ams Demo Kit Manual, Confidential

[v1-02] 2014-Jul-10

Page 10

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