TAS3218IPZP datasheet(5/78 Pages) TI

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DESCRIPTION

TAS3218

www.ti.com ....................................................................................................................................................................................................... SLES235 – JULY 2008

TERMINAL FUNCTIONS (continued)

TERMINAL

I/O

TERMINATION(1)

DESCRIPTION

NO.

NAME

AVSS_ESD

Analog ground

XTAL_IN

External crystal input

XTAL_OUT

External crystal output

Pin out of internal regulator. A 4.7-F low ESR capacitor should be

VR_ANA

connected between this pin and digital ground. This terminal must not be

used to power external devices.

AVDD_OSC

3.3-V analog power

100

DVDD1

3.3-V digital power

TAS3218 is an audio system-on-a-chip (SOC) designed for digital television audio systems and mini/micro

component applications. TAS3218 has a programmable audio DSP that preserves high-quality audio by using a

48-bit data path, 28-bit filter coefficients, and a single cycle 28 x 48-bit multiplier. The programmability feature

allows users to customize features in the DSP RAM.

The TAS3218 is composed of seven functional blocks.

• Clock and serial data interface

• Analog input and output

• M8051 WARP controller, serial control interface, and device control

• Audio DSP digital audio processing

• Power supply

• Internal references

Figure 1 shows the functional structure of the TAS3218.

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