Datasheet SSM2603 (Analog Devices)

Low Power Audio Codec Data Sheet SSM2603 FEATURES GENERAL DESCRIPTION Stereo, 24-bit analog-to-digital and digital-to-analog converters
The SSM2603 is a low power, high quality stereo audio codec
DAC SNR: 100 dB (A-weighted), THD: −80 dB at 48 kHz, 3.3 V
for portable digital audio applications with one set of stereo
ADC SNR: 90 dB (A-weighted), THD: −80 dB at 48 kHz, 3.3 V
programmable gain amplifier (PGA) line inputs and one
Highly efficient headphone amplifier
monaural microphone input. It features two 24-bit analog-to-
Stereo line input and monaural microphone input
digital converter (ADC) channels and two 24-bit digital-to-
Low power
analog (DAC) converter channels.
7 mW stereo playback (1.8 V/1.5 V supplies)
The SSM2603 can operate as a master or a slave. It supports
14 mW record and playback (1.8 V/1.5 V supplies)
various master clock frequencies, including 12 MHz or 24 MHz
Low supply voltages
for USB devices; standard 256 f
Analog: 1.8 V to 3.6 V
S or 384 fS based rates, such as 12.288 MHz and 24.576 MHz; and many common audio sampling
Digital core: 1.5 V to 3.6 V
rates, such as 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz, 24
Digital I/O: 1.8 V to 3.6 V
kHz, 22.05 kHz, 16 kHz, 12 kHz, 11.025 kHz, and 8 kHz.
256/384 oversampling rate in normal mode; 250/272 over- sampling rate in USB mode
The SSM2603 can operate at power supplies as low as 1.8 V for
Audio sampling rates: 8 kHz, 11.025 kHz, 12 kHz, 16 kHz,
the analog circuitry and as low as 1.5 V for the digital circuitry.
22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz,
The maximum voltage supply is 3.6 V for all supplies.
and 96 kHz
The SSM2603 software-programmable stereo output options
28-lead, 5 mm × 5 mm LFCSP package
provide the user with many application possibilities. Its volume
APPLICATIONS
control functions provide a large range of gain control of the audio signal.
Mobile phones MP3 players
The SSM2603 is specified over the industrial temperature range
Portable gaming
of −40°C to +85°C. It is available in a 28-lead, 5 mm × 5 mm
Portable electronics
lead frame chip scale package (LFCSP).
Educational toys FUNCTIONAL BLOCK DIAGRAM AVDD VMID AGND DBVDD DGND DCVDD HPVDD PGND MICBIAS SSM2603 BYPASS –34.5dB TO +33dB, –6dB TO –15dB/MUTE –3dB STEP SIDETONE –73dB TO +6dB, 1.5dB STEP 1dB STEP RHPOUT RLINEIN MUX ADC DAC ROUT DIGITAL MICIN PROCESSOR 0dB/20dB BOOST LOUT MUX ADC DAC LLINEIN LHPOUT –34.5dB TO +33dB, –6dB TO –15dB/MUTE –3dB STEP 1.5dB STEP –73dB TO +6dB, SIDETONE 1dB STEP BYPASS CLK DIGITAL AUDIO INTERFACE CONTROL INTERFACE
001
MCLK/ XTO CLKOUT PBDAT RECDAT BCLK PBLRC RECLRC MUTE CSB SDIN SCLK
07241-
XTI
Figure 1.
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Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Digital Filter Characteristics Timing Characteristics Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Converter Filter Response Digital De-Emphasis Theory of Operation Digital Core Clock ADC and DAC ADC High-Pass and DAC De-Emphasis Filters Hardware Mute Pin Automatic Level Control (ALC) Decay (Gain Ramp-Up) Time Attack (Gain Ramp-Down) Time Noise Gate Analog Interface Signal Chain Stereo Line and Monaural Microphone Inputs Bypass and Sidetone Paths to Output Line and Headphone Outputs Digital Audio Interface Recording Mode Playback Mode Digital Audio Data Sampling Rate Software Control Interface Control Register Sequencing Typical Application Circuits Register Map Register Map Details Left-Channel ADC Input Volume, Address 0x00 Right-Channel ADC Input Volume, Address 0x01 Left-Channel DAC Volume, Address 0x02 Right-Channel DAC Volume, Address 0x03 Analog Audio Path, Address 0x04 Digital Audio Path, Address 0x05 Power Management, Address 0x06 Power Consumption Digital Audio I/F, Address 0x07 Sampling Rate, Address 0x08 Active, Address 0x09 Software Reset, Address 0x0F ALC Control 1, Address 0x10 ALC Control 2, Address 0x11 Noise Gate, Address 0x12 Outline Dimensions Ordering Guide