ISD2590P Electronic IC Chips Single-Chip Voice Record / Playback Devices
electronic integrated circuit
,linear integrated circuits
ISD2500 Series
Single-Chip Voice Record/Playback Devices 32-*, 40-*, 48-*, 64-*, 60-, 75-, 90-, and 120-Second Durations
FEATURES
• Easy-to-use single-chip voice Record/ Playback solution
• High-quality, natural voice/audio reproduction
• Manual switch or microcontroller compatible Playback can be edge- or levelactivated
• Single-chip durations of 32*, 40*, 48*, 64*, 60, 75, 90, and 120 seconds
• Directly cascadable for longer durations
• Automatic Power-Down (Push-Button Mode)
– Standby current 1 µA (typical)
• Zero-power message storage
– Eliminates battery backup circuits
• Fully addressable to handle multiple messages
• 100-year message retention (typical)
• 100,000 record cycles (typical)
• On-chip clock source
• No algorithm development required
• Single +5 volt power supply
• Available in die form, DIP, SOIC, and TSOP packaging
• Industrial temperature (-40°C to +85°C) versions available
GENERAL DESCRIPTION
Information Storage Devices' ISD2500 ChipCorder® Series provides high-quality, single-chip Record/Playback solutions for 32- to 120-second messaging applications. The CMOS devices include an on-chip oscillator, microphone preamplifier, automatic gain control, antialiasing filter, smoothing filter, speaker amplifier, and high density multi-level storage array. In addition, the ISD2500 is microcontroller compatible, allowing complex messaging and addressing to be achieved.
Recordings are stored in on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through ISD's patented multilevel storage technology. Voice and audio signals are stored directly into memory in their natural form, providing highquality, solid-state voice reproduction.
DETAILED DESCRIPTION
Speech/Sound Quality
The ISD2500 Series includes devices offered at 4.0, 5.3, 6.4, and 8.0 KHz sampling frequencies, allowing the user a choice of speech quality options. Increasing the duration within a product series decreases the sampling frequency and bandwidth, which affects sound quality. Please refer to the ISD2500 Series Summary table on page 1-79 to compare filter pass band and product durations.
The speech samples are stored directly into onchip nonvolatile memory without the digitization and compression associated with other solutions. Direct analog storage provides a very true, natural sounding reproduction of voice, music, tones, and sound effects not available with most solid-state digital solutions.
Duration
To meet end system requirements, the ISD2500 Series offers single-chip solutions at 32*, 40*, 48*, 64*, 60, 75, 90, and 120 seconds. Parts may also be cascaded together for longer durations.
ABSOLUTE MAXIMUM RATINGS (PACKAGED PARTS)
| Condition | Value |
|---|---|
| Junction temperature | 150° C |
| Storage temperature range | –65° C to +150° C |
| Voltage applied to any pin | (VSS – 0.3 V) to (VCC + 0.3 V) |
| Voltage applied to any pin (Input current limited to ±20 mA) | (VSS – 1.0 V) to (VCC + 1.0 V) |
| Lead temperature (soldering – 10 seconds) | 300° C |
| VCC - VSS | – 0.3 V to + 7.0 V |
NOTE: Stresses above those listed may cause permanent damage to the device. Exposure to the absolute maximum ratings may affect device reliability. Functional operation is not implied at these conditions.
OPERATING CONDITIONS (PACKAGED PARTS)
| Condition | Value |
|---|---|
| Commercial operating temperature range(1) | 0° C to +70° C |
| Industrial operating temperature range(1) | –40° C to +85° C |
| Supply voltage (VCC) (2) | +4.5 V to +5.5 V |
| Ground voltage (VSS) (3) | 0 V |
NOTES:
1. Case temperature.
2. VCC = VCCA = VCCD.
3. VSS = VSSA = VSSD.
Stock Offer (Hot Sell)
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