ISD1600B SERIES

Publication Release Date: Jan. 23, 2007

- 9 -

Revision 1.2

6. FUNCTIONAL DESCRIPTION

6.1.1 Audio Quality

Winbond’s patented ChipCorder

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.

6.1.2 Duration

The ISD1600B series offer single-chip solution with record & playback duration from 6.6

seconds to 40 seconds. Sampling frequency and duration are determined by an external

resistor connected to the Rosc pin.

Sampling Frequency

Rosc

ISD1610B

ISD1612B

ISD1616B

ISD1620B

12 KHz

53 k

Ω

6.6 secs

8 secs

10.6 secs

13.3 secs

8 KHz

80 k

Ω

10 secs

12 secs

16 secs

20 secs

6.4 KHz

100 k

Ω

12.5 secs

15 secs

20 secs

25 secs

5.3 KHz

120 k

Ω

15 secs

18 secs

24 secs

30 secs

4 KHz

160 k

Ω

20 secs

24 secs

32 secs

40 secs

6.1.3 Flash Storage

The ISD1600B 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 100,000 times.

6.1.4 Basic Operation

The ISD1600B ChipCorder

in single-message application. Detailed operations are explained in Section 6.2.

6.1.5 vAlert

With vAlert option, after Record, the LED blinks slowly to indicate a new message exists.

Once playback is performed, the LED will not blink again and resume to normal operating

conditions.

6.1.6 Automatic Power-Down Mode

(see DC parameters Section). During a playback cycle, the device powers down automatically