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DESCRIPTION

ORDERING INFORMATION

ABSOLUTE MAXIMUM RATINGS

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PCM4222

SBAS399A – OCTOBER 2006 – REVISED MARCH 2007

The PCM4222 is a high-performance, two-channel analog-to-digital (A/D) converter designed for use in

professional audio applications. Offering outstanding dynamic performance, the PCM4222 supports 24-bit linear

PCM, 1-bit Direct Stream Digital (DSD), and 6-bit modulator data outputs. The supported output formats make

the PCM4222 ideal for digital audio recording and processing applications. The multi-bit modulator output adds

versatility, allowing customers to design their own digital decimation filter and processing hardware. The on-chip,

linear phase decimation filtering engine supports Classic and Low Group Delay filter responses, allowing

optimization for either studio or live sound applications.

The PCM4222 includes three PCM sampling modes, supporting output sampling rates from 8kHz to 216kHz.

The DSD output supports either 64x or 128x oversampled bit rates. The PCM4222 is configured using dedicated

control pins for selection of output modes, PCM audio data formats and word length, decimation filter response,

high-pass filter disable, and reset/power-down functions.

While providing uncompromising performance, the PCM4222 addresses power concerns with just over 300mW

typical total power dissipation, making the device suitable for multi-channel audio systems. The PCM4222 is

typically powered from a +4.0V analog supply and a +3.3V digital supply. The digital I/O is logic-level compatible

with common digital signal processors, digital interface transmitters, and programmable logic devices. The

PCM4222 is available in a TQFP-48 package, which is RoHS-compliant.

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be

more susceptible to damage because very small parametric changes could cause the device not to meet its published

specifications.

For the most current package and ordering information, see the Package Option Addendum at the end of this

datasheet, or see the TI website at www.ti.com.

VALUE

Power Supplies:

VCC1, VCC2

–0.3V to +6.0V

VDD

–0.3V to +4.0V

Digital input voltage

All digital input and I/O pins

–0.3V < (VDD + 0.3V) < +4.0V

Analog input voltage

VINL+, VINL–, VINR+, VINR–

–0.3V < (VCC + 0.3V) < +6.0V

Input current (all pins except power and ground)

±10mA

Ambient operating temperature

–40

°C to +85°C

Storage temperature

–65

°C to +150°C

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These limits are stress ratings only. Stresses beyond these limits may result in permanent damage. Extended exposure to absolute

maximum ratings may degrade device reliability. Normal operation or performance at or beyond these limits is not specified or ensured.

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