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ISD1700 データシート(PDF) 7 Page - Winbond

部品番号 ISD1700
部品情報  Multi-Message Single-Chip Voice Record & Playback Devices
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メーカー  WINBOND [Winbond]
ホームページ  http://www.winbond.com
Logo WINBOND - Winbond

ISD1700 データシート(HTML) 7 Page - Winbond

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ISD1700 SERIES
Publication Release Date: January 23, 2007
- 7 -
Revision 1.3-S2
5
PIN DESCRIPTION
Refer to Design Guide for details before performing any design or PCB layout.
PIN NAME
FUNCTIONS
VCCD
Digital Power Supply
: Power supply for digital circuitry.
LED
LED
: An LED output.
RESET
RESET
: When active, the device enters into a known state.
MISO
Master In Slave Out:
Data is shifted out on the falling edge of SCLK.
When the SPI is inactive ( SS = high), it’s tri-state.
MOSI
Master Out Slave In:
Data input of the SPI interface when ISD1700 is a
slave. Data is latched into the device on the rising edge of SCLK.
SCLK
Serial Clock:
Clock of the SPI interface.
SS
Slave Select:
Selects as a slave device and enables the SPI interface.
VSSA
Analog Ground
: Ground path for analog circuitry.
AnaIn
AnaIn:
Auxiliary analog input to the device for recording or feed-through.
MIC+
MIC+:
Non-inverting input of the differential microphone signal.
MIC-
MIC-:
Inverting input of the differential microphone signal.
VSSP2
Ground
: Ground path for negative PWM speaker drive.
SP-
SP-
: The negative Class D PWM speaker output.
VCCP
Power Supply for PWM Speaker Driver
: Power for PWM speaker drive.
SP+
SP+:
The positive Class D PWM speaker output.
VSSP1
Ground
: Ground path for positive PWM speaker drive.
AUD/AUX
Auxiliary Output
: Either an AUD (current) or AUX (voltage) output.
AGC
Automatic Gain Control (AGC)
: The AGC adjusts the gain of the
microphone preamplifier circuitry.
VOL
Volume:
This control has 8 levels of volume adjustment.
ROSC
Oscillator Resistor
: A resistor determines the sample frequency of the
device, which sets the duration.
VCCA
Analog Power Supply
. Power supply for analog circuitry.
FT
Feed-through:
Enable the feed-through path for AnaIn signal to the
outputs.
PLAY
Playback:
Plays the recorded message individually, or plays messages
sequential in a looping mode.
REC
Record:
When active, starts recording message.
ERASE
Erase:
When active, can erase individual message or do global erase.
FWD
Forward:
Advances to the next message from the current location.
INT
RDY
An open drain output. Can review ready or interrupt status.
VSSD
Digital Ground
: Ground path for digital circuitry


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