ISD1790PY Nuvoton Technology Corporation of America, ISD1790PY Datasheet - Page 7

• Manufacturer Part Number: ISD1790PY
• Description: IC VOICE REC/PLAY 90-SEC 28-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: ISD1700, ChipCorder®r

Specifications of ISD1790PY

• Interface: SPI
• Duration: 90 Sec
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• For Use With: ISD-COB1790 - BOARD DEMO FOR ISD1790ISD-COB1760 - BOARD DEMO FOR ISD1760ISD-COB1750 - BOARD DEMO FOR ISD1750ISD-COB1740 - BOARD DEMO FOR ISD1740ISD-COB1730 - BOARD DEMO FOR ISD1730ISD-COB17240 - BOARD DEMO FOR ISD17240ISD-COB17210 - BOARD DEMO FOR ISD17210ISD-COB17150 - BOARD DEMO FOR ISD17150ISD-ES17XX_USB_PB - BOARD DEMO FOR ISD1700 SERIES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Filter Pass Band: -

5 PIN DESCRIPTION
Refer to Design Guide for details before performing any design or PCB layout.
RDY
PIN NAME
AUD/AUX
RESET
ERASE
SCLK
AnaIn
MISO
MOSI
PLAY
MIC+
V
V
MIC-
AGC
V
R
FWD
V
V
V
V
LED
SP+
REC
SP-
VOL
SS
FT
SSP2
SSP1
INT
CCD
CCP
OSC
CCA
SSD
SSA
Digital Power Supply: Power supply for digital circuitry.
LED: An LED output.
RESET: When active, the device enters into a known state.
Master In Slave Out: Data is shifted out on the falling edge of SCLK.
When the SPI is inactive (
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.
Serial Clock: Clock of the SPI interface.
Slave Select: Selects as a slave device and enables the SPI interface.
Analog Ground: Ground path for analog circuitry.
AnaIn: Auxiliary analog input to the device for recording or feed-through.
MIC+: Non-inverting input of the differential microphone signal.
MIC-: Inverting input of the differential microphone signal.
Ground: Ground path for negative PWM speaker drive.
SP-: The negative Class D PWM speaker output.
Power Supply for PWM Speaker Driver: Power for PWM speaker drive.
SP+: The positive Class D PWM speaker output.
Ground: Ground path for positive PWM speaker drive.
Auxiliary Output: Either an AUD (current) or AUX (voltage) output.
Automatic Gain Control (AGC): The AGC adjusts the gain of the
microphone preamplifier circuitry.
Volume: This control has 8 levels of volume adjustment.
Oscillator Resistor: A resistor determines the sample frequency of the
device, which sets the duration.
Analog Power Supply. Power supply for analog circuitry.
Feed-through: Enable the feed-through path for AnaIn signal to the
outputs.
Playback: Plays the recorded message individually, or plays messages
sequential in a looping mode.
Record: When active, starts recording message.
Erase: When active, can erase individual message or do global erase.
Forward: Advances to the next message from the current location.
An open drain output. Can review ready or interrupt status.
Digital Ground: Ground path for digital circuitry
SS
= high), it’s tri-state.
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FUNCTIONS
ISD1700 DATASHEET
Publication Release Date:Feb 4, 2010
Revision 2.0