Product
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TWL1103T-Q1
  • TWL1103T-Q1

TWL1103T-Q1

ACTIVE

Automotive Voice-Band Audio Processor (VBAP)

Texas Instruments TWL1103T-Q1 Product Info

1 April 2026 2

Parameters

Number of ADC channels

0

Number of DAC channels

1

Analog inputs

2

Analog outputs

2

Rating

Automotive

ADC SNR (typ) (dB)

0

DAC SNR (typ) (dB)

0

Operating temperature range (°C)

-40 to 105

Package

TQFP (PBS)-32-49 mm² 7 x 7

Features

  • Qualified for Automotive Applications
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (CL = 200 pF, RL = 0)
  • 2.7-V Operation
  • Two Differential Microphone Inputs, One 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 I2C Bus, Which Provides a Simple, Standard, Two-Wire Serial Interface With Digital ICs
  • Programmable for 15-Bit Linear Data or 8-Bit Companded (u-Law or A-Law) Data
  • Available in a 32-Pin Thin Quad Flatpack (TQFP) Package
  • Designed for Analog and Digital Wireless Handsets and Telecommunications Applications
  • Dual-Tone Multifrequency (DTMF) and Single Tone Generator
  • Pulse Density Modulated (PDM) Buzzer Output

VBAP is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

  • Qualified for Automotive Applications
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (CL = 200 pF, RL = 0)
  • 2.7-V Operation
  • Two Differential Microphone Inputs, One 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 I2C Bus, Which Provides a Simple, Standard, Two-Wire Serial Interface With Digital ICs
  • Programmable for 15-Bit Linear Data or 8-Bit Companded (u-Law or A-Law) Data
  • Available in a 32-Pin Thin Quad Flatpack (TQFP) Package
  • Designed for Analog and Digital Wireless Handsets and Telecommunications Applications
  • Dual-Tone Multifrequency (DTMF) and Single Tone Generator
  • Pulse Density Modulated (PDM) Buzzer Output

VBAP is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Description

The voice-band audio processor (VBAP) 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 I2C interface. The VBAP generates its own internal clocks from a 2.048-MHz master clock input.

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