ISD1600 SERIES
7. FUNCTIONAL DESCRIPTION
7.1. DETAILED DESCRIPTION
Audio Quality
Winbond’s patented ChipCorder® MLS technology provides natural high quality record and playback
solution on a single chip. The input audio signals are stored directly into the non-volatile memory and
are reproduced in its natural form without any compression artifacts caused by the digital speech
solutions. A complete sample is stored in a single cell, minimizing the memory needed to store a
single message.
Duration
The ISD1600 series offer single-chip solution with record/playback duration from 6.6 seconds to 40
seconds. Sampling rate and duration are determined by an external resistor connected to the Rosc
pin.
Rosc
60 kΩ
80 kΩ
100 kΩ
120 kΩ
160 kΩ
Sample Rate
ISD1610
6.6 secs
10 secs
12.5 secs
15 secs
20 secs
ISD1612
8 secs
12 secs
15 secs
18 secs
24 secs
ISD1616
10.6 secs
16 secs
20 secs
24 secs
32 secs
ISD1620
13.3 secs
20 secs
25 secs
30 secs
40 secs
12 KHz
8 KHz
6.4 KHz
5.3 KHz
4 KHz
Flash Storage
The ISD1600 product utilizes the on-chip Flash memory providing zero-power message storage. The
message is retained for up to 100 years without power. In addition, the device can be re-recorded
typically over 10,000 times.
Basic Operation
The ISD1600 ChipCorder® device is controlled by either the REC pin, or one of the two playback
modes, PLAYE and PLAYL. The ISD1600 parts are configured for design simplicity in a single-
message application. Device operation is explained in Section 7.2.
Automatic Power-Down Mode
At the end of a playback or record cycle, the ISD1600 device automatically enters into a low-power
standby mode, consuming typically 0.5µA, provided that PLAY and REC pins are HIGH (see DC
parameters, Section 10). During a playback cycle, the device powers down automatically at the end of
the message. During a record cycle, the device powers down immediately after REC is released to
HIGH.
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