Datasheet

www.ti.com
1.1 PCM4204EVM Features
1.2 PCM4202EVM General Description and Functional Block Diagram
Introduction
The PCM4202EVM provides a convenient platform for evaluating the performance and functionality
of the PCM4202 product. The primary EVM features include:
• Simple configuration using onboard DIP switches
• Two differential voltage inputs supporting either 3-pin XLR or Balanced TRS connections
• Low-noise input buffer circuits utilizing the OPA1632 fully differential audio amplifier
• Two 75Ω AES3-encoded outputs, supporting operation up to 216kHz sampling rates
• Buffered Audio Serial Port supports a two-channel, 24-bit linear PCM data interface for external
hardware and signal processors. Sampling rates up to 216kHz are supported.
• Two onboard system clock oscillators, operating at 22.5792MHz and 24.576MHz respectively,
supporting standard PCM sampling rates, including 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz,
and 192kHz.
• External system clock inputs supporting alternative sampling rates up to 216kHz.
The PCM4202EVM requires +15V, -15V, and +5V analog power supplies. Additionally, a +5V digital
power supply is required, with a +3.3V digital supply being derived onboard using a linear voltage
regulator IC.
The PCM4202EVM provides a complete platform for evaluating the performance and features of
the PCM4202 stereo audio A/D converter. Figure 2 illustrates the functional block diagram for the
evaluation module.
PCM4202EVM User's Guide4 SBAU103 – August 2004