PCM1602KY

ADCs/DACs - Special Purpose Overview

The PCM1602KY is a CMOS monolithic integrated circuit featuring six 24-bit audio digital-to-analog converters (DACs) in an LQFP-48 package. It utilizes an enhanced multilevel delta-sigma architecture with fourth-order noise shaping and 8-level amplitude quantization. The device supports sampling rates up to 200 kHz for channels 1 and 2, and up to 100 kHz for channels 3 through 6. Key electrical specifications include a typical dynamic range of 105 dB, a signal-to-noise ratio of 105 dB, and total harmonic distortion plus noise of 0.002%. It operates with dual supplies: 5 V analog and 3.3 V digital.

ADCs/DACs - Special Purpose Feature Summary

• Six-channel 24-bit resolution with enhanced multilevel delta-sigma modulation
• High analog performance: 105 dB typical dynamic range and SNR; 0.002% typical THD+N
• Dual-supply operation: 5 V analog (VCC) and 3.3 V digital (VDD)
• Supports standard, I2S, and left-justified data formats with 16-, 18-, 20-, and 24-bit word lengths

ADCs/DACs - Special Purpose Applications

• Integrated A/V receivers
• DVD movie and audio players
• HDTV receivers
• Car audio systems
• Digital audio workstations

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix KY against the manufacturer's current production status, as legacy audio DAC families often undergo discontinuation or revision updates. Confirm that the LQFP-48 package availability aligns with current manufacturing cycles. Cross-reference the datasheet revision date (July 2005) to ensure all electrical characteristics and timing diagrams match the specific batch requirements for your design.

ADCs/DACs - Special Purpose Selection Notes

Select the PCM1602KY when high channel count and superior dynamic performance are required compared to the PCM1602Y variant. Ensure the system clock can support frequencies up to 768 fS for optimal operation. Verify that the application environment accommodates the -25°C to +85°C operating temperature range. Check that the serial control interface (MC, MDI, ML, MDO) is compatible with the host controller's logic levels.

ADCs/DACs - Special Purpose Part Context

The PCM1602 belongs to Texas Instruments' family of high-performance audio DACs designed for multichannel applications. The PCM1602KY represents the higher-performance grade within this series, distinguished by improved dynamic range and lower distortion metrics compared to the standard PCM1602Y version. Both variants share the same pinout and functional architecture but differ in strict electrical tolerances.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers for the PCM1602KY are not available in the provided documentation. Designers should consult Texas Instruments for current multichannel DAC alternatives if this component is discontinued.

ADCs/DACs - Special Purpose FAQ

What is the maximum sampling frequency supported by each channel group?

Channels 1 and 2 (VOUT1, VOUT2) support sampling frequencies up to 200 kHz. Channels 3, 4, 5, and 6 (VOUT3–VOUT6) support sampling frequencies up to 100 kHz.

How does the PCM1602KY differ from the PCM1602Y in terms of performance?

The PCM1602KY offers superior analog performance with a typical dynamic range and SNR of 105 dB (compared to 100 dB for the Y variant) and a typical THD+N of 0.002% (compared to 0.003% for the Y variant).

What power supply voltages are required for operation?

The device requires dual supplies: a digital supply voltage (VDD) of 3.3 V (range 3 V to 3.6 V) and an analog supply voltage (VCC) of 5 V (range 4.5 V to 5.5 V).