ISD15C00
Publication Release Date: Aug 09, 2011
- 2 - Revision 1.4
TABLE OF CONTENTS
1 GENERAL DESCRIPTION .............................................................................................................. 2
2 FEATURES ...................................................................................................................................... 3
3 BLOCK DIAGRAM ........................................................................................................................... 5
4 PINOUT CONFIGURATION ............................................................................................................ 7
5 PIN DESCRIPTION .......................................................................................................................... 8
6 ELECTRICAL CHARACTERISTICS .............................................................................................. 11
6.1 ABSOLUTE MAXIMUM RATINGS ............................................................................................................. 11
6.2 OPERATING CONDITIONS ........................................................................................................................ 11
6.3 DC PARAMETERS ................................................................................................................................... 11
6.4 AC PARAMETERS ................................................................................................................................... 13
6.4.1 Internal Oscillator ......................................................................................................................... 13
6.4.2 Inputs ............................................................................................................................................. 13
6.4.3 Outputs ........................................................................................................................................... 14
6.4.4 SPI Timing ..................................................................................................................................... 15
6.4.5 I
2
S Timing ...................................................................................................................................... 17
7 APPLICATION DIAGRAM .............................................................................................................. 18
8 PACKAGE SPECIFICATION ......................................................................................................... 18
8.1 48 LEAD LQFP(7X7X1.4MM FOOTPRINT 2.0MM) .................................................................................... 18
9 ORDERING INFORMATION .......................................................................................................... 20
10 REVISION HISTORY.................................................................................................................. 21
1 GENERAL DESCRIPTION
The ISD15C00 is a multi-message ChipCorder
®
featuring digital compression, comprehensive memory
management, and integrated analog/digital audio signal paths. The message management feature is
designed to make message recording simple and address-free as well as make code development
easier for playback-only applications. The ISD15C00 utilizes winbond 25X/25Q series flash memory
to provide non-volatile audio record/playback for a two-chip solution. Unlike other ChipCorder series,
the ISD15C00 provides an I
2
S digital audio interface, faster digital recording, higher sampling
frequency, and a signal path with SNR equivalent to 12bit resolution.
The ISD15C00 can take digital audio data via I
2
S or SPI interface. When I
2
S input is selected, it will
replace the analog audio inputs and will support sample rates of 32, 44.1 or 48 kHz depending upon
clock configuration. When SPI interface is chosen, the sample rate of the audio data sent must be one
of the ISD15C00 supported sample rates.
The ISD15C00 has built-in analog audio inputs, analog audio line driver, and speaker driver output.
The two analog audio inputs to the device are: (1) AUXIN has a fixed gain configured by SPI
command, and (2) ANAIN/ANAOUT has a fixed gain amplifier with the gain set by two external
resistors. ANAIN/ANAOUT can also be used as a microphone differential input (ANAIN/ANAOUT
becomes MIC+/MIC-) in conjunction with an automatic gain control (AGC) circuit configured by SPI
command. Analog outputs are available in three forms: (1) AUXOUT is a single-ended voltage output;
(2) AUDOUT can be configured as either a single-ended voltage output or a single-ended current
output; (3) BTL (bridge-tied-load) is a differential voltage output.