TLV320AIC1103
SLAS356 − DECEMBER 2001
PCM CODEC
FEATURES
D
2.7-V Operation
D
Two Differential Microphone Inputs, One
D
D
D
D
D
D
D
D
Differential Earphone Output, and One
Single-Ended Earphone Output
Programmable Gain Amplifiers for Transmit,
Receive, Sidetone, and Volume Control
Earphone Mute and Microphone Mute
On-Chip I
2
C Bus, Which Provides a Simple,
Standard, Two-Wire Serial Interface With
Digital ICs
Programmable for 15-Bit Linear Data or 8-Bit
Companded (µ-Law or A-Law) Data
Available in a 32-Pin Thin Quad Flatpack
(TQFP) Package and an 80-Pin GQE MicroStar
Juniort Ball Grid Array (BGA)
Designed for Analog and Digital Wireless
Handsets and Telecommunications
Applications
Dual-Tone Multifrequency (DTMF) and Single
Tone Generator
Pulse Density Modulated (PDM) Buzzer
Output
DESCRIPTION
The PCM codec is designed to perform transmit
encoding analog/digital (A/D) conversion, receive
decoding digital/analog (D/A) conversion, and transmit
and receive filtering for voice-band communications
systems. The device operates in either the 15-bit linear
or 8-bit companded
(µ-law
or A-Law) mode, which is
selectable through the I
2
C interface. The PCM codec
generates its own internal clocks from a 2.048-MHz
master clock input.
PBS PACKAGE
(TOP VIEW)
24 23 22 21 20 19 18 17
PLLVSS
VSS
MCLK
RESET
PWRUPSEL
BUZZCON
PCMSYN
PCMCLK
PLLV
DD
EARV
SS
EAR1ON
EARV
DD
EAR1OP
EARV
SS
EAR2O
AV
DD
25
26
27
28
29
30
31
32
1
2
3
4 5 6 7
8
16
15
14
13
12
11
10
9
APPLICATIONS
D
Digital Handset
D
Digital Headset
D
Cordless Phones
D
Digital PABX
D
Digital Voice Recording
PCMO
PCMI
DV
SS
DV
DD
SCL
SDA
NC
NC
NC − No internal connection
This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These
circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,
Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than maximum-rated
voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device
should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level,
preferably either VCC or ground. Specific guidelines for handling devices of this type are contained in the publication
Guidelines for
Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies
available from Texas Instruments.
MicroStar Junior is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
MBIAS
MIC1P
MIC1N
MIC2P
MIC2N
REXT
NC
AVSS
Copyright
2001, Texas Instruments Incorporated
www.ti.com
1
TI [ TEXAS INSTRUMENTS ]
