PCM9211PTR

Audio Special Purpose Overview

The PCM9211PTR is a digital audio interface transceiver from Texas Instruments, designed for high-performance audio applications. It features a 2-channel architecture with 24-bit resolution and supports sampling rates up to 216 kS/s. The device integrates stereo ADCs and routing capabilities within an LQFP-48 package. It operates on dual power supplies ranging from 2.9 V to 3.6 V and 4.5 V to 5.5 V, with a typical operating current of 10 mA. Communication is managed via I2C and SPI interfaces, ensuring flexible configuration and control in complex audio systems.

Audio Special Purpose Feature Summary

• Integrated stereo ADCs with 24-bit resolution and 216 kS/s sampling rate
• Supports I2C and SPI interfaces for system control and configuration
• Dual voltage operation: 2.9–3.6 V and 4.5–5.5 V domains
• Includes internal audio routing for flexible signal path management

Audio Special Purpose Applications

• Professional audio equipment requiring high-resolution digital audio input
• Automotive infotainment systems with multi-channel audio processing
• Consumer electronics utilizing digital audio interfaces (DIX)

Audio Special Purpose Procurement Notes

Verify the specific suffix 'PTR' indicates tape-and-reel packaging when sourcing components. Confirm that the dual-voltage requirements align with the target system's power design. Ensure ESD protection measures are implemented during handling due to the sensitive nature of CMOS audio ICs. Cross-reference the datasheet revision date to ensure compatibility with existing firmware or hardware designs.

Audio Special Purpose Selection Notes

Select the PCM9211PTR when a digital audio transceiver with integrated analog-to-digital conversion is required. The LQFP-48 package suits space-constrained PCB layouts. Consider the 10 mA current consumption for power budgeting. Verify that the host processor supports the necessary I2C/SPI protocols for register configuration. Compare against the PCM9211PT if tray packaging is preferred over reel packaging.

Audio Special Purpose Part Context

The PCM9211 belongs to Texas Instruments' family of digital audio interface transceivers. It is often paired with complementary DACs or processors in complete audio subsystems. The 'PTR' variant specifically denotes the reel packaging format, distinguishing it from the tube-packaged 'PT' version. This component serves as a bridge between digital audio sources and downstream processing units.

Audio Special Purpose Replacement Considerations

The PCM9211PT is a pin-compatible alternative differing only in packaging (tube vs. reel). No other direct functional substitutes are listed in the provided data. Verify pinout and electrical specifications before substituting with any other audio transceiver.