AVM1504D

Rev 1.2

2002/11/6

4

Dynamic means LED will flash depending on voice signal.

For each sub-table, the STS1 could be programmed within sub_table as active or inactive.

The pulse width of stop pulse: 15ms--45ms (40ms at playback speed 6KHz).

NOTE: the 3Hz and 6Hz depend on the ratio of current playback speed (5.3Hz to 16KHz).

the stop pulse width depends on the ratio of final playback speed.

8. The internal stop pulse feedback mask options are offered.

9. Snooze Function description:

1. Snooze Function use 2 sub_tables:

1st stores Ringing voice or melody (alarm sound), playing when time's up.

2nd stores [greeting sound +] snooze time.

2. Please refer to timing diagram 6.

BLOCK DIAGRAM:

PAD DESCRIPTION:

Pad Name

Pad No.

ATTR.

Function

Vdd

1

Power

Positive power supply.

OSC

2

I

Oscillator input (300K ohm connect to Vdd).

TEST

3

I

Test pad for production testing.

TG1

4

I

Trigger input, internal pull low (high active).

AUDIO

5

O

Current output for driving speaker.

STS1

6

O

Status output for Busy, LED or Stop pulse.

GND

7

Power

Negative power supply.