Publication Release Date: Nov 6, 2008 - 3 - Revision 1.31 1 0 GENERAL DESCRIPTION The Nuvoton
鍙冩暩璩囨枡
鍨嬭櫉锛� ISD17150EYI
寤犲晢锛� Nuvoton Technology Corporation of America
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鎻忚堪锛� IC VOICE REC/PLAY 150SEC 28-TSOP
妯欐簴鍖呰锛� 234
绯诲垪锛� ISD1700, ChipCorder®
鎺ュ彛锛� SPI
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灏佽/澶栨锛� 28-TSSOP锛�0.465"锛�11.8mm 瀵級
渚涙噳鍟嗚ō鍌欏皝瑁濓細 28-TSOP
閰嶇敤锛� ISD-COB1790-ND - BOARD DEMO FOR ISD1790
ISD-COB1760-ND - BOARD DEMO FOR ISD1760
ISD-COB1750-ND - BOARD DEMO FOR ISD1750
ISD-COB1740-ND - BOARD DEMO FOR ISD1740
ISD-COB1730-ND - BOARD DEMO FOR ISD1730
ISD-COB17240-ND - BOARD DEMO FOR ISD17240
ISD-COB17210-ND - BOARD DEMO FOR ISD17210
ISD-COB17150-ND - BOARD DEMO FOR ISD17150
ISD-ES17XX_USB_PB-ND - BOARD DEMO FOR ISD1700 SERIES
PRELIMINARY ISD1700 SERIES
Publication Release Date: Nov 6, 2008
- 3 -
Revision 1.31
1
0
GENERAL DESCRIPTION
The Nuvoton
ISD1700 ChipCorder Series is a high quality, fully integrated, single-chip multi-
message voice record and playback device ideally suited to a variety of electronic systems. The
message duration is user selectable in ranges from 26 seconds to 120 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 ISD1700 devices
are optimized for a wide range of battery or line-powered applications.
The ISD1700 is designed for operation in either standalone or microcontroller (SPI) mode. The device
incorporates a proprietary message management system that allows the chip to self-manage address
locations for multiple messages. This unique feature provides sophisticated messaging flexibility in a
simple push-button environment. The devices include an on-chip oscillator (with external resistor
control), microphone preamplifier with Automatic Gain Control (AGC), an auxiliary analog input, anti-
aliasing filter, Multi-Level Storage (MLS) array, smoothing filter, volume control, Pulse Width
Modulation (PWM) Class D speaker driver, and current/voltage output.
The ISD1700 devices also support an optional 鈥渧Alert鈥� (voiceAlert) feature that can be used as a new
message indicator. With vAlert, the device flashes an external LED to indicate that a new message is
present. Besides, four special sound effects are reserved for audio confirmation of operations, such as
鈥淪tart Record鈥�, 鈥淪top Record鈥�, 鈥淓rase鈥�, 鈥淔orward鈥�, 鈥淕lobal Erase鈥�, and etc.
Recordings are stored into on-chip Flash memory, providing zero-power message storage. This unique
single-chip solution is made possible through Nuvoton鈥檚 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.
Voice signals can be fed into the chip through two independent paths: a differential microphone input
and a single-ended analog input. For outputs, the ISD1700 provides a Pulse Width Modulation (PWM)
Class D speaker driver and a separate analog output simultaneously. The PWM can directly drive a
standard 8
惟 speaker or typical buzzer, while the separate analog output can be configured as a single-
ended current or voltage output to drive an external amplifier.
While in Standalone mode, the ISD1700 devices automatically enter into power down mode for power
conservation after an operation is completed.
In the SPI mode, the user has full control via the serial interface in operating the device. This includes
random access to any location inside the memory array by specifying the start address and end
address of operations. SPI mode also allows access to the Analog Path Configuration (APC) register.
This register allows flexible configuration of audio paths, inputs, outputs and mixing. The APC default
configuration for standalone mode can also be modified by storing the APC data into a non-volatile
register (NVCFG) that is loaded at initialization. Utilizing the capabilities of ISD1700 Series, designers
have the control and flexibility to implement voice functionality into the high-end products.
Notice: The specifications are subject to change without notice. Please contact Nuvoton Sales Offices or
Representatives to verify current or future specifications. Also refer to the website for any related application notes.
鐩搁棞PDF璩囨枡
PDF鎻忚堪
VE-26J-CV-S CONVERTER MOD DC/DC 36V 150W
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73S1209F-68IM/F IC SMART CARD READER 68-QFN
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