APR9301 DATASHEET PDF

Features :. Non-volatile Flash memory technology. Single message of 20 to 30 seconds, with external resistor selection. Chip enable pin for simple message expansion. User-friendly, easy-to-use operation. Low power consumption.

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General Description. The APR de vice offers true single-chip solid-state. It provides high-quality recording and playback with. It is ideal for portable. The APR -V2 stores and reproduces voice.

The device. Page 1. Functional Block Diagram. Figure 2 shows the functional block diagram for the APRV2. O scillato r. Power Supplies. S w itch ed. Capacitor Filter. Automatic Gain. Control AGC. Read Circuits.

N on-Volatile. Analog Storage. Memory Array. Device Control. Sample Application. Figure 3 shows the diagram for a single, second message. When pins are connected as shown in this example,.

Record Mode Level-Activated. A single voice message of up to 20 seconds can be recorded. If the message lasts longer than. If the message is shorter. The speaker driver is automatically. Messages of up to 30 seconds can be recorded by using. Playback Mode Edge-Activated. Playback always starts from the beginning of the message.

Playback will stop immediately when the. If the newly recorded. The input pre-. The chip will automatically return to the standby state after. The chip is always in standby state. No recording or playback. Current consumption is typically less than 1 u A.

Page 2. It provides high-quality recording and playback with a single to second message. It is ideal for portable voice recorders, toys, and many other consumer and industrial applications. The APR -V2 stores and reproduces voice signals in their natural forms, eliminating the 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.

When pins are connected as shown in this example, the operating modes are as follows: Record Mode Level-Activated A single voice message of up to 20 seconds can be recorded. If the message lasts longer than 20 seconds, recording will terminate automatically after the last available memory cell is written. 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 Mode Edge-Activated Playback always starts from the beginning of the message. 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 pre- amplifier, AGC, and main amplifier circuits are disabled during playback. No recording or playback is allowed.

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APR9301 Datasheet

Automatic power-down feature for longer battery life Chip enable pin for simple message expansion Single 6 V power supply. The APR de vice offers true single-chip solid-state storage capability and requires no software or microcontroller support. It provides high-quality recording and playback with a single to second message. It is ideal for portable voice recorders, toys, and many other consumer and industrial applications.

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