TLV320AIC3268 Datasheet, PDF (1/263 Pages) Texas Instruments – Low Power Stereo Audio Codec

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TLV320AIC3268
SLAS953A – JANUARY 2014 – REVISED FEBRUARY 2014
TLV320AIC3268 Low Power Stereo Audio Codec With 105dB DAC, DirectPath Headphone
and Class-D Speaker Amplifier and Integrated miniDSP
1 Features
•1 105dB SNR for Stereo Audio DAC to Differential
Lineout
• 95dB SNR for Stereo Line Input to Audio ADC
• 8-192kHz Playback and Record
• 24 mW output power from DirectPath^TM
Headphone Driver
• 121 mW output power from Differential Receiver
Output Driver
• Class-D Speaker Driver with
– 1.45 W (8Ω, 5V, 10% THDN)
– 1.15 W (8Ω, 5V, 1% THDN)
• Differential or Single-Ended Stereo Line Outputs
• Eight Single-Ended or 4 Fully-Differential Analog
Inputs
• Analog Microphone Inputs, and Up to 4
Simultaneous Digital Microphone Channels
• Extensive Signal Processing Options
• Fully-programmable Enhanced miniDSP
• Three Independent Digital Audio Serial Interfaces
with Separate I/O Power Voltages
– TDM and mono PCM support on all Audio
Serial Interfaces (ASI)
– 8-channel Input and Output on ASI 1
• Programmable PLL, plus Low-Frequency Clocking
• Programmable 12-Bit SAR ADC
• SPI and I²C Control Interfaces
AIC3268
2 Applications
• Low Power Portable Audio Devices
• Consumer Audio Devices
• Infotainment Systems
3 Description
The TLV320AIC3268 (AIC3268) provides users with
an integrated method to implement an audio system
with multiple digital and analog audio streams as
sources, and multiple output devices such as high-
powered audio amplifiers. The integrated miniDSP
allows users to differentiate their products by enabling
customization of signal processing on the audio
streams. The low power consumption of this device is
ideal for systems that are battery operated or that
operate in a constrained power consumption
environment.
The AIC3268 is an integrated, low-power, low-voltage
stereo audio codec and also features four digital
microphone inputs, plus programmable outputs,
predefined and parameterizable signal processing
blocks and an integrated PLL. Extensive register-
based control of power, input and output channel
configuration, gains, effects, terminal-multiplexing and
clocks are included, allowing the device to be
precisely targeted to its application.
The AIC3268 supports a range of applications from
mono 8kHz voice to stereo 192kHz music, making it
ideal for wide variety of low power battery-operated
and consumer audio applications.
Device Information
DEVICE NAME
PACKAGE
TLV320AIC3268
VQFN (64)
BODY SIZE
9mm × 9mm
4 Simplified Diagrams
BIAS
PLL
CHARGE PUMP
BT
CD
S/PDIF
Rx
I ²S
I²S
In
Out
I ²S
Audio
In
Processing
I²S
Out
I ²S
In
Analog
In
Analog
Out
Digital
Input
Amplifier
Digital
Input
Amplifier
Analog
Input
Amplifier
ADC
M
U
X
ADC
DAC
DAC
SAR
ADC
REF
SPI/I² C
ASI-1 ASI-2
TERMINAL MUX
ASI-3
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.