FX631P datasheet(7/9 Pages) CMLMICRO

7 / 9 page

Specification ......

Notes

DD = 3.3V

DD = 5.0V

With adherence to Signal-to-Voice and Signal-to Noise specifications.

With Input Amp gain setting: 15.5dB

MIN/18.0dBMAX.

Common Mode SPM and balanced voice signal.

Immune to false responses.

Immune to false de-responses

With SPM and voice signal amplitudes balanced; To avoid false de-responses due to saturation, the

peak-to-peak voice+noise level at the output of the Input Amp (12/16kHz Filter Input) should be no

greater than the dynamic range of the device.

Maximum voice frequencies = 3.4kHz

10.

Response, De-Response and Power-up Response Timing.

SIGNAL INPUT

TONE

NOTONE

RESPONSE

DELAY

DERESPONSE

DELAY

SIGNAL INPUT ......

TONE FOLLOWER OUTPUT

PACKET MODE OUTPUT ......

TONE FOLLOWER OUTPUT ......

PACKET MODE OUTPUT

Fig.7 Examples of Input and Output Relationships

System Timing

12.00kHz

11.82kHz

11.52kHz

-4%

+4%

-1.5%

+1.5%

12.18kHz

12.48kHz

16.00kHz

15.76kHz

15.36kHz

-4%

+4%

-1.5%

+1.5%

16.24kHz

16.64kHz

Fig.6 Will/Will-Not Decode Frequencies

Application Inf

Application Information ......

ormation ......

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