isd4003 Winbond Electronics Corp America, isd4003 Datasheet - Page 12

• Manufacturer Part Number: isd4003
• Description: Single-chip, Multiple-messages Voice Record/playback Devices 4-, 5-, 6-, And 8-minute Duration
• Manufacturer: Winbond Electronics Corp America

7. FUNCTIONAL DESCRIPTION
Audio Quality
The Winbond’s ISD4003 ChipCorder
frequencies, allowing the user a choice of speech quality options. Increasing the sampling frequency
will produce better sound quality, but affects duration. Please refer to Table 1: Product Summary for
details.
Analog speech samples are stored directly into on-chip non-volatile memory without the digitization
and compression associated with other solutions. Direct analog storage provides higher quality
reproduction of voice, music, tones, and sound effects than other solid-state solutions.
Duration
The ISD4003 Series is a single-chip solution with 4-, 5-, 6-, and 8-minute duration.
* This is the –3dB point. This parameter is not checked during production testing and may vary due to process
variations and other factors. Therefore, the customer should not rely upon this value for testing purposes.
Flash Storage
The ISD4003 series utilizes on-chip Flash memory, providing zero-power message storage. The
message is retained for up to 100 years typically without power. In addition, the device can be re-
recorded typically over 100,000 times.
Memory Architecture
The ISD4003 series contains a total of 1,920K Flash memory cells, which is organized as 1,200 rows
of 1,600 cells each.
7.1. D
ISD4003-04M
ISD4003-05M
ISD4003-06M
ISD4003-08M
Part Number
ETAILED
D
ESCRIPTION
TABLE 1: PRODUCT SUMMARY OF ISD4003 SERIES
(Minutes)
Duration
4
5
6
8
®
series is offered at 8.0, 6.4, 5.3 and 4.0 kHz sampling
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Sample Rate
(kHz)
8.0
6.4
5.3
4.0
ISD4003 SERIES
Typical Filter Pass
Band (kHz) *
3.4
2.7
2.3
1.7