DF1760P

Analog To Digital Converters (ADC) Overview

The DF1760P is a monolithic decimating digital filter designed to pair with the PCM1760 delta-sigma modulator. It accepts 4-bit, 64fs data from the modulator and decimates it to 20-bit, 1fs data using an internal FIR filter. The device operates on a single +5V supply and supports system clocks of 256fs or 384fs. Key performance metrics include a passband ripple of ±0.0001 dB and stopband attenuation exceeding 100 dB. It offers versatile interface capabilities, including selectable 16- or 20-bit output formats and master/slave modes.

Analog To Digital Converters (ADC) Feature Summary

• Decimates 4-bit 64fs input to 20-bit 1fs output
• FIR filter with ±0.0001 dB passband ripple and >100 dB stopband attenuation
• Supports 256fs or 384fs system clock inputs
• Configurable output formats: 16/20-bit, MSB/LSB first

Analog To Digital Converters (ADC) Applications

• High-performance audio systems requiring low-cost analog-to-digital conversion
• Dynamic applications utilizing 4th order, 64x oversampling architectures
• Professional audio equipment integrating Burr-Brown PCM1760 modulators

Analog To Digital Converters (ADC) Procurement Notes

Verify package type upon ordering; the 'P' suffix denotes a 28-pin PDIP package. Confirm current marketing status as product availability may vary between active and obsolete classifications depending on the specific revision date of the datasheet consulted.

Analog To Digital Converters (ADC) Selection Notes

Select the DF1760P only when paired with the PCM1760 modulator for a complete 20-bit A/D system. Ensure the design accommodates a single +5V digital supply for the filter, while the modulator requires ±5V supplies. Verify that the host processor supports the selected serial data format (MSB/LSB first) and clocking scheme (master/slave).

Analog To Digital Converters (ADC) Part Context

The DF1760 is part of the Burr-Brown PCM1760/DF1760 family, specifically engineered as the digital companion to the PCM1760 analog front-end. While the PCM1760 handles the multi-bit enhanced noise shaping modulation, the DF1760 provides the necessary digital filtering and decimation to achieve high dynamic range audio conversion.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The DF1760 is designed for specific integration with the PCM1760 modulator; alternative solutions require re-evaluation of the entire analog-to-digital architecture.