PRELIMINARY
ISD1600B
Series
Single-Message
Single-Chip
6.6- to 40-Second
Voice Record & Playback Devices
Publication Release Date: Dec. 01, 2008
Revision 1.22
ISD1600B SERIES
TABLE OF CONTENTS
1. GENERAL DESCRIPTION .................................................................................................................. 3
2. FEATURES ......................................................................................................................................... 4
3. BLOCK DIAGRAM............................................................................................................................... 5
4. PIN CONFIGURATION ....................................................................................................................... 6
5. PIN DESCRIPTION ............................................................................................................................. 7
6. FUNCTIONAL DESCRIPTION ............................................................................................................ 9
6.1. Detailed Description ...................................................................................................................... 9
6.1.1 Audio Quality ........................................................................................................................... 9
6.1.2 Duration ................................................................................................................................... 9
6.1.3 Flash Storage .......................................................................................................................... 9
6.1.4 Basic Operation ....................................................................................................................... 9
6.1.5 Automatic Power-Down Mode ................................................................................................ 9
6.2. Functional Description Example ................................................................................................... 9
6.2.1. Record a Message ............................................................................................................... 10
6.2.2. Edge-trigger Playback .......................................................................................................... 10
6.2.3. Level- trigger Playback......................................................................................................... 10
6.2.4. LED Operation ..................................................................................................................... 10
6.2.5. R
OSC
Operation ..................................................................................................................... 10
7. TIMING DIAGRAMS .......................................................................................................................... 11
8. ABSOLUTE MAXIMUM RATINGS .................................................................................................... 13
8.1 Operating Conditions ................................................................................................................... 14
9. ELECTRICAL CHARACTERISTICS ................................................................................................. 15
9.1. DC Parameters ........................................................................................................................... 15
9.2. AC Parameters ........................................................................................................................... 16
10. TYPICAL APPLICATION CIRCUIT ................................................................................................. 17
11. PACKAGE DRAWING AND DIMENSIONS .................................................................................... 18
11.1. 16-Lead 150mil Small Outline Integrated Circuit (SOIC) Package .......................................... 18
11.2. Die Physical Layout .................................................................................................................. 19
12. ORDERING INFORMATION ........................................................................................................... 20
13. VERSION HISTORY ....................................................................................................................... 21
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Publication Release Date: Dec. 01, 2008
Revision 1.22
ISD1600B SERIES
1. GENERAL DESCRIPTION
The Nuvoton
®
ISD1600B ChipCorder
®
Series is a high quality, fully integrated, single-chip single-
message voice record and playback device ideally suited to a variety of electronic systems. The
message duration is user selectable in ranges from 6.6 seconds to 40 seconds, depending on the
specific device. The sampling frequency of each device can also be adjusted from 4 kHz to 12 kHz
with an external resistor, giving the user greater flexibility in duration versus recording quality for each
application. Operating voltage spans a range from 2.4 V to 5.5 V to ensure that the ISD1600B devices
are optimized for a wide range of battery or line-powered applications.
The devices include an on-chip oscillator (with external resistor control), microphone preamplifier with
Automatic Gain Control (AGC), anti-aliasing filter, Multi-Level Storage (MLS) array, smoothing filter,
Pulse Width Modulation (PWM) Class D speaker driver, and current output. Voice signals can be fed
into the chip through a differential microphone input for recording. The PWM output can directly drive
a standard 8
Ω
speaker or a typical buzzer, while the separate single-ended current output can drive
an external amplifier.
Recordings are stored into the on-chip Flash memory cells, providing zero-power message storage.
This unique single-chip solution is made possible through Nuvoton’s patented Multi-Level Storage
(MLS) technology. Audio data are stored directly in solid-state memory without digital compression,
providing superior quality voice and music reproduction.
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Publication Release Date: Dec. 01, 2008
Revision 1.22
ISD1600B SERIES
2. FEATURES
•
User-friendly single-chip, single-message voice record & playback devices
•
Wide operating voltage: 2.4V to 5.5V
•
Push-button interface
o
Record is level-triggered
o
Playback is either edge- or level-triggered
•
Selectable sampling frequency controlled by an external oscillator resistor
Sampling Frequency
Rosc
Sample Frequency
ISD1610B
ISD1612B
ISD1616B
ISD1620B
12 kHz
53 kΩ
12 KHz
6.6 secs
8 secs
10.6 secs
13.3 secs
8 kHz
80 kΩ
8 KHz
10 secs
12 secs
16 secs
20 secs
6.4 kHz
100 kΩ
6.4 KHz
12.5 secs
15 secs
20 secs
25 secs
5.3 kHz
120 kΩ
5.3 KHz
15 secs
18 secs
24 secs
30 secs
4 kHz
160 kΩ
4 HKz
20 secs
24 secs
32 secs
40 secs
•
Variable duration selected by external oscillator resistor
•
Message and operation indicators
o
LED: stay on during recording, blink during playback operation
•
Automatic power-down mode
o
Enters standby mode immediately after a record or playback cycle
o
Standby current: 1µA typical and 10µA maximum
•
Dual output channels
o
PWM Class D speaker amplifier to directly drive an 8
Ω
speaker or a typical buzzer
o
AUD single-ended current output to drive external power amplifier
•
ChipCorder standard features
o
o
o
o
High-quality, natural voice and audio reproduction
Zero-power message storage: Eliminates battery backup circuits
100-year message retention (typical)
100,000 record cycles (typical)
•
Package options: Leaded and Lead-free packaged units
•
Available in die and 16L 150mil SOIC
•
Temperature options:
o
o
Commercial: 0°C to +50°C (Die); 0°C to +70°C (Packaged)
Industrial: -40°C to +85°C (Packaged)
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Publication Release Date: Dec. 01, 2008
Revision 1.22
ISD1600B SERIES
3. BLOCK DIAGRAM
R
OSC
Internal
Clock
Timing
Sampling Clock
Amp
Active
Antialiasing Filter
Decoders
Analog Transceivers
AUD
MIC+
MIC-
AGC
AGC
Amp
Automatic
Gain Control
(AGC)
Power Conditioning
Nonvolatile
Multilevel Storage
Array
Active
Smoothing Filter
SP+
Amp
SP-
Device Control
V
CCA
V
SSA
V
SSP
V
CCP
V
SSD
V
CCD
REC
PLAYE
PLAYL
LED
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Publication Release Date: Dec. 01, 2008
Revision 1.22
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