Rainbow Electronics APR9301 User Manual

INTEGRATED CIRCUITS INC.- APR9301

APR9301 RE-RECORDING VOICE IC

Single-Chip Voice Recording & Playback Device

for Single 20 to 30 Second Message

 Features :

 Single-chip, high quality voice recording & Playback solution

- No external ICs required

- Minimum external components

 Non-volatile Flash memory technology

- No battery backup required

- 100K record cycles (typical)

- 100-year message retention (typical)

 Single message of 20 to 30 seconds, with external resistor selection

 Chip enable pin for simple message expansion

 User-friendly, easy-to-use operation

- Programming & development systems not required

- Level-activated recording & edge-activated playback switches

 Low power consumption

- Operating current: 25mA (typical, no load)

- Standby current: 1uA (typical, no load)

 Automatic power-down feature for longer battery life

 Single 5V power supply

General Description :

The APR9301 device offers true single-chip solid-state storage capability and requires no

software or microcont-roller support. It provides high-quality recording and playback with a

single 20- to 30-second message. It is ideal for portable voice recorders, toys, and many

other consumer and industrial applications.

APLUS’s proprietary analog/multi-level storage technology is implemented in advanced

Flash non-volatile memory cells,each of which can typically store more than 256 voltage

levels. The APR9301 device stores and reproduces voice signals in their natural forms,

eliminating distortion that is often introduced by encoding and compression. The device

combines a small size with low power consumption,non-volatility, and ease-of-use for a cost

effective solution to voice recording and playback

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INTEGRATED CIRCUITS INC.- APR9301

PS : The APR9301 DIP & SOP is not [ PIN to PIN ]

 Functional Block Diagram :

Figure 2 shows the functional block diagram for the APR9301 device.

Figure 2 APR9301 Functional Block Diagram

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INTEGRATED CIRCUITS INC.- APR9301

Sample Application

Figure 3 shows the diagram for a single,

20-second message recording and

playback application using the APR9301

device. When pins are connected as shown

in this example,the operating modes are as

follows:

Record Mode (Level-Activated)

single voice message of up to 20 seconds

can be recorded.The /LED pin will go low

during the actual recording process to

provide a visual indication if an LED light is

connected to this pin. The chip is in record

Playback Mode (Edge-Activated)

Playback always starts from the beginning

of the message.The chip is in playback

mode after the /PlayE pin pulses low

(edge-activated). Playback will stop

immediately when the /PlayE pin pulses low

a second time.

If the newly recorded message is shorter

than the previously recorded message,

the remaining portion of the previous

message will not be played after the new

message is played back.

The input preamplifier, AGC, and main

amplifier circuits are disabled during

mode as long as the /RecL pin stays low

level-activated). If the message lasts longer

than 20 seconds, recording will terminate

automatically after the last available

memory cell is written. If the message is

shorter

than 20 seconds, the recording operation

will stop when the /RecL pin goes high.

The speaker driver is automatically

tristated during the recording operation.

Messages of up to 30 seconds can be

recorded by using

different OscR resistor values

(see Table 1).

playback.

Standby Mode (/CE = "0)

The chip will automatically return to the

standby state after recording or playback

operation is completed.

Power Down Mode (/CE = "1 `)

The chip is always in standby state.

No recording or playback is allowed.

Current consumption is typically less than

1uA.

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