PCM1604PTR Equivalent & Substitute Parts

Part Overview

The PCM1604PTR is a 24-bit audio digital-to-analog converter manufactured by Texas Instruments, designed for high-fidelity audio applications requiring 200 kHz sampling rate capability. This component operates across dual voltage supplies (3V–3.6V and 5V) and features an I2S digital interface for seamless integration into audio processing systems.

The PCM1604PTR is classified as obsolete. Identifying suitable substitute components is essential for ongoing production support, design updates, and inventory management when original stock becomes unavailable.

Substiute Parts

PCM1604PTR

Texas InstrumentsIn Stock: 6144PCM1604PTR Datasheet

Current PartRFQ

PCM1602APT

Texas InstrumentsIn Stock: 1094PCM1602APT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCM1604PTR is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Package type: 48-LQFP (7×7 mm) surface mount
• Data interface: I2S protocol
• Resolution: 24 bits
• Voltage supply compatibility: 3V–3.6V and 5V operation
• Operating temperature range: −25°C to +85°C minimum
• Regulatory compliance: ROHS3 and REACH requirements

Allowable Variations:

• Number of channels: May differ from the original 3-channel configuration
• Sampling rate: May exceed the original 200 kHz specification, provided the substitute operates at or above this rate
• Product status: Active or obsolete status does not disqualify a substitute

The PCM1602APT meets all mandatory criteria and represents a direct functional substitute within the SoundPlus™ audio DAC product family.

Parameter Comparison

Engineering Selection Recommendations

The PCM1602APT is qualified as a direct substitute for the PCM1604PTR based on the following engineering criteria:

Package and Interface Compatibility: Both components utilize the 48-LQFP (7×7 mm) surface mount package and I2S digital interface, ensuring mechanical and electrical compatibility without PCB redesign.

Electrical Specifications: Both parts operate across identical voltage supply ranges (3V–3.6V and 5V) and maintain the same 24-bit resolution and operating temperature range (−25°C to +85°C), supporting equivalent system performance.

Regulatory Compliance: Both components meet ROHS3 and REACH requirements, ensuring compliance with current environmental and hazardous substance regulations.

Product Status Advantage: The PCM1602APT carries active product status, providing assured long-term availability and manufacturing support compared to the obsolete PCM1604PTR.

Channel Configuration: The PCM1602APT provides 6 channels versus the PCM1604PTR's 3 channels. Systems requiring only 3 channels may operate the substitute with unused channels disabled or left unconnected, depending on application requirements and firmware configuration.

Sampling Rate Consideration: The PCM1602APT supports 192 kHz sampling rate, which is lower than the PCM1604PTR's 200 kHz specification. Applications requiring exactly 200 kHz operation must evaluate whether 192 kHz sampling rate meets system performance requirements.

Frequently Asked Questions (FAQ)

Q: Can the PCM1602APT directly replace the PCM1604PTR without PCB modifications?

A: Yes. Both components share identical 48-LQFP (7×7 mm) package geometry, pin count, and I2S interface protocol. No PCB layout changes are required for mechanical and electrical integration.

Q: What is the impact of the PCM1602APT's 6-channel configuration versus the PCM1604PTR's 3-channel design?

A: The PCM1602APT provides additional output channels. Systems designed for 3-channel operation can utilize the substitute by configuring firmware to use only the required channels. Unused channels may be disabled or left unconnected depending on the application architecture.

Q: Does the 192 kHz sampling rate of the PCM1602APT meet applications requiring 200 kHz operation?

A: The PCM1602APT operates at 192 kHz, which is 4% lower than the PCM1604PTR's 200 kHz specification. System designers must evaluate whether this sampling rate reduction is acceptable for their specific audio processing requirements and signal bandwidth constraints.

Q: Are both components compliant with current environmental regulations?

A: Yes. Both the PCM1604PTR and PCM1602APT are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations for electronic components.

Q: What is the advantage of selecting the PCM1602APT over the obsolete PCM1604PTR?

A: The PCM1602APT carries active product status, ensuring ongoing manufacturing availability, technical support, and supply chain reliability. The PCM1604PTR is obsolete and subject to inventory depletion and discontinuation.

Q: Are the voltage supply requirements identical between both components?

A: Yes. Both components operate across 3V–3.6V and 5V supply ranges for analog and digital circuits, supporting equivalent power supply configurations and system integration.