TLC320AD535C-I_16 Datasheet, PDF (7/42 Pages) Texas Instruments – DUAL CHANNEL VOICE/DATA CODEC

1 Introduction
The TLC320AD535 dual channel voice/data codec is a mixed-signal broadband connectivity device. The
TLC320AD535 is comprised of a two-channel codec and analog hybrid circuitry with two independent serial ports for
communication with the host processor and external resistors and capacitors for setting gain and filter poles. The
device also contains microphone bias and amplification, audio mixing capabilities in the voice channel,
programmable gain control, and three (SPKR_LEFT, SPKR_RIGHT, and MONOUT) speaker drivers.The device
operates with either a 5-V analog, a 5-V digital, and a 5-V monitor power supply or a 3.3-V analog, a 3.3-V digital,
and a 5-V monitor power supply or 5-V analog, 3.3-V digital, and 5-V monitor power supply. It is available in a single
64-pin PM (QFP) package.
1.1 Features
• Analog, Digital, and Monitor Amp Power Supplies: 5 V or 3.3 V
• Separate Software Power-Down Modes for Data and Voice Channels
• Independent Voice and Data Channel Sample Rates up to 11.025 kHz
• 16-Bit Signal Processing
• Dynamic Range of 80 dB in the Data and Voice Channels
• Total Signal-to-Noise + Distortion of 77 dB for the ADCs
• Total Signal-to-Noise + Distortion of 74 dB for the DACs
• Programmable Gain Amplifiers
• 600-Ω TAPI Audio and Data Channel Drivers
• 60-Ω Headphone Driver With Programmable Gain Amplifier
• 8-Ω AT41 Differential Speaker Driver With Programmable Gain Amplifier
• Maximum Microphone Bias of 5 mA at 2.5 V/1.5 V
• Maximum Handset Reference of 2.5 mA at 2.5 V/1.5 V
• Maximum Data Channel Reference of 10 mA at 2.5 V/1.5 V
• 5-V MV_DD Power Reset Circuit
• Flash Write Enable Circuit, for Writing the Flash Memory Device
• Available in a 64-Pin PM (QFP) Package Operating From –40°C to 85°C
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