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SLWS094 – JUNE 2001
PW PACKAGE
(TOP VIEW)
D
Designed for Analog and Digital Wireless
Handsets, Voice-Enabled Terminals, and
Telecommunications Applications
1
2
3
4
5
6
7
8
9
10
20
MICMUTE
RESET
EARMUTE
MCLK
PCMSYNC
PCMO
PCMI
DVSS
D
D
2.7-V to 3.3-V Operation
19
18
17
16
15
14
13
12
11
VSS
Selectable 13-Bit Linear or 8-Bit µ-Law
Companded Conversion
EARVSS
EAROUT+
EARVDD
EAROUT–
EARVSS
D
D
D
D
D
Differential Microphone Input with External
Gain Setting
DVDD
Differential Earphone Output Capable of
Driving a 32-Ω to 8-Ω Load
LINSEL
MICGAIN–
MICIN+
MICGAIN+
MICIN–
Programmable Volume Control in Linear
Mode
Microphone (MIC) and Earphone (EAR)
Mute Functions
Typical Power Dissipation of 0.03 mW in
Power-Down Mode
D
D
D
2.048-MHz Master Clock Rate
300-Hz to 3.4-kHz Passband
Low Profile 20-Terminal TSSOP Packaging
description
The TWL1106 voice-band audio processor (VBAP) is designed to perform transmit encoding analog-to-digital
(A/D) conversion, receive decoding digital-to-analog (D/A) conversion, and the transmit and receive filtering for
voice-band communications systems. The TWL1106 device operates in either the 13-bit linear or 8-bit
companded (µ-law) mode. The VBAP generates its own internal clocks from a 2.048-MHz master clock input.
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 V
or ground. Specific guidelines for handling devices of this type are contained in the publication Guidelines for
CC
Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.
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.
VBAP is a trademark of Texas Instruments.
All other trademarks are products of their respective owners.
Copyright 2001, Texas Instruments Incorporated
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ꢝ ꢡ ꢞ ꢝꢖ ꢗꢫ ꢙꢘ ꢜ ꢤꢤ ꢢꢜ ꢚ ꢜ ꢛ ꢡ ꢝ ꢡ ꢚ ꢞ ꢦ
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265