AMBE-2000™ Vocoder Chip

User’s Manual Version 3.0

page 41

Confidential Proprietary, Subject to Change

7.6.2

Power Down

Power Down provides the lowest power usage of the sleep modes, the only drawback to this mode is the necessity of a

hardware reset on RESETN (pin 69) to resume normal operation.

Table 7-C Summary of Power Saving Modes

Power Consumption

3V

Sleep Mode

Enter State via

Return to Normal

Operation via

Wake Up

Time

Crystal

CMOS

TTL

Normal Operation

N/A

N/A

N/A

Approx. 65mW

Standard Sleep

SLEEP_EN pin at

reset OR Control

Word

Control Word

N/A

24 mW

36 mW

Power Down

Control Word

RESETN

200

0.11 mW

0.11 mW