
ADC
DAC
ADC
HPL
HPR
RECL
LINEOUT _LP
LINEOUT _LM
LINEOUT _RP
LINEOUT _RM
LINEIN_L
MIC1_P
MIC1_M
EXTMIC _P
EXTMIC _M
MIC2_P
MIC2_M
LINEIN_R
AudioSerial
Bus
D
IN
D
O
U
T
B
C
L
K
W
C
L
K
Control
S
C
L
S
D
A
I2
C
_
A
D
R
0
I2
C
_
A
D
R
1
GPIO
M
C
L
K
R
E
S
E
T
B
Microphone
Support
D
E
T
E
C
T
G
P
IO
3
G
P
IO
4
IN
T
M
IC
_
B
IA
S
E
X
T
M
IC
_
B
IA
S
Charge
Pump
A
V
D
2
F
C
_
P
O
S
F
C
_
N
E
G
GND_ADC
A
V
D
1
A
V
S
1
A
V
D
_
C
P
G
N
D
_
C
P
D
V
D
V
S
IO
V
D
Voltage
Regulators
Digital
Supplies
G
P
IO
1
G
P
IO
2
AVDD _ADC
AVSS _DAC
HP_COM
A
V
S
_
R
E
G
A
V
D
_
R
E
G
N
D
_
R
E
G
Signal
Grounds
V
C
M
_
A
D
C
G
N
D
_
D
A
C
G
N
D
_
H
P
A
V
D
_
B
IA
S
G
N
D
_
B
IA
S
RECR
H
O
K
G
P
IO
5
G
P
IO
6
G
N
D
AVDD _DAC
AVDD _HP
AVSS _HP
PGA
A
D
C
F
ilt
e
r
E
n
g
in
e
D
A
C
F
ilt
e
r
E
n
g
in
e
www.ti.com
SBAS387A – MAY 2009 – REVISED JUNE 2010
Low Power Stereo Audio Codec With Embedded miniDSP
1
INTRODUCTION
1.1
Features
1234
Generators
Stereo Audio DAC
Programmable PLL for Flexible Clock
– 100-dBA Signal-to-Noise Ratio
Generation
– 16/20/24/32-Bit Data
Advanced Microphone Impedance Detection
– Supports Rates From 8 to 192 kHz
I2C Control Bus
– Programmable DAC Filter Engine
Audio Serial Data Bus Supports I2S,
Stereo Audio ADC
Left/Right Justified, DSP, and TDM Modes
– 92-dBA Signal-to-Noise Ratio
Alternate Serial PCM/I2S Data Bus
– Supports Rates from 8 to 192 kHz
Stereo Digital Microphone Input
– Programmable ADC Filter Engine
Extensive Modular Power Control
Three Dedicated Microphone Inputs
– Integrated Charge Pump
– Supports Single-Ended, Balanced
– Integrated Programmable LDOs
Differential, and Unbalanced Differential
Package: 5 x 5 mm 80-VFBGA
Configurations
Stereo Line-Level Inputs
1.2
Applications
Audio Output Drivers
Portable Navigation Devices (PND)
– Ground-Referenced Cap-Free Stereo 16
Portable Media Players (PMP)
Single-Ended Headphone Drivers
Mobile Handsets
– Ground-Referenced Cap-Free Stereo 16
Single-Ended Receiver Drivers
Communication
– Fully Differential Stereo Line Outputs
Portable Computing
Programmable Input/Output Gains
Automatic Gain Control (AGC) for Record
Dual Programmable Microphone Bias
Figure 1-1. Simplified Block Diagram
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
MicroStar Junior is a trademark of Texas Instruments.
3
I2C, I2S are trademarks of NXP Semiconductors.
4
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2009–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.