TLC320AD77 Datasheet, PDF (7/33 Pages) Texas Instruments – 24-Bit 96 kHz Stereo Audio Codec

1 Introduction
The TLC320AD77C is a cost competitive stereo analog-to-digital (A/D) and digital-to-analog (D/A) 24-bit
delta-sigma converter for consumer applications which demand excellent audio performance. It has a wide
variety of serial input options including left justified, right justified, IIS, or DSP data formats for 16-, 20-, or
24-bit input/output data. It has an extremely wide range of sampling rates starting at 16 kHz and increasing
upwards to 96 kHz. Its internal bandgap design provides a very clean voltage reference. The TLC320AD77C
is primarily designed for mini-disks, audio/video receivers, musical instruments, and other end-equipments
requiring high-performance digital audio conversion.
1.1 Features
• 24-Bit Delta Sigma Stereo ADC and DAC:
– 16-, 20-, or 24-Bit Input/Output Data
– Wide Range of Sampling Rates: 16 kHz to 96 kHz
– Master Clock: 256 f_s or 384 f_s
– 3.3-V Power Supply Operation
– Internal Bandgap Voltage Reference
– Economical 28-Pin DB (SSOP) Package
• Stereo ADC:
– Differential Input
– 128× Oversampling (in normal speed mode)
– High Performance: 100-dB Signal-to-Noise Ratio (SNR) (EIAJ), 100-dB Dynamic Range
– Digital High-Pass Filter
• Stereo DAC:
– Single-Ended Output
– 128× Oversampling (in normal speed mode)
– High Performance: 100-dB Signal-to-Noise Ratio (SNR) (EIAJ), 100-dB Dynamic Range
• Digital De-Emphasis:
– 32-kHz, 44.1-kHz, and 48-kHz Selection
• Special Features:
– High Jitter Tolerance
– Good Phase Characteristics
– Excellent Power Supply Rejection Ratio
1–1