TLC320AD81C datasheet(13/47 Pages) TI

13 / 47 page

2–1

2 Description

2.1

Serial Audio Interface

•

Programmable audio serial port

–I2S, left justified, and right justified

•

Dual input data channels (SDIN1 and SDIN2)

–

16-,18-, or 20-bit resolution (see section 6.1,

Audio Data)

•

Single output data channel (SDOUT)

–

16-,18-, or 20-bit resolution (see section 6.1,

Audio Data)

•

Accepts 32 fs or 64 fs (SCLK)†

•

I2C slave port

•

Two I2C programmable address pins (CS1 and CS2)

2.2

Audio Processing

•

Programmable multi band digital parametric EQ (updateable)

•

Programmable volume control (dynamically updateable)

•

Soft mute software controlled

•

Digital mixing of SDIN1 and SDIN2 with independent gain control

•

Programmable bass and treble tone control (dynamically updateable)

•

De-emphasis supported for CD applications at 44.1 kHz

2.3

Power Supply

•

Digital supply voltage – DVDD, DVSS of 3.3 V

•

Digital supply voltage – DVDD_DAC, DVSS_DAC of 3.3 V

•

Analog supply voltage – AVDD_PLL, AVSS_PLL of 3.3 V

•

Analog supply voltage – AVDD_DAC, AVSS_DAC of 5 V or 3.3 V

2.4

DAC

•

Stereo sigma-delta D/A converter

•

98-dB signal-to-noise ratio (SNR) typical

•

94-dB dynamic range typical

•

Soft mute hardware control pin

•

De-emphasis hardware control pin (44.1 kHz)

•

0.6 Vrms at AVDD = 3.3 V or 1 Vrms at AVDD = 5 V analog output

† 32 fs serial input mode is left justified 16 bit only

TLC320AD81C Datasheet(PDF) 13 Page - Texas Instruments

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