The PCM1760 and DF1760 combine for a low-cost, high-performance dual 20-bit, 48kHz sampling analog- to-digital conversion system which is specifically designed for dynamic applications.
The PCM1760/DF1760 pair form a 4-bit, 4th order, 64X oversampling analog-to-digital converter.
The PCM1760 is a delta-sigma modulator that uses a 4-bit quantizer within the modulation loop to achieve very high dynamic range.
The DF1760 is a high-performance decimating digital filter. The DF1760 accepts 4-bit 64fs data from the PCM1760 and decimates to 20-bit 1fs data.
The FIR filter of the DF1760 has pass-band ripple of less than ±0.001dB and greater than 100dB of the reject band attenuation.
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DUAL 20-BIT MONOLITHIC MODULATOR (PCM1760) AND MONOLITHIC DECIMATING DIGITAL FILTER (DF1760) HIGH PERFORMANCE: THD+N: 92dB typ, 90dB max Dynamic Range: 108dB typ SNR: 108dB min, 110dB typ Channel Separation: 98dB typ, 94dB min64X OVERSAMPLINGCO-PHASE CONVERSIONRUNS ON 256fs OR 384fs SYSTEM CLOCKVERSATILE INTERFACE CAPABILITY: 16-, 20-Bit Output MSB First or LSB First FormatOPTIONAL FUNCTIONS: Offset Error Calibration Overflow Detection Power Down Mode (DF1760)RUNS ON ±5V SUPPLIES (PCM1760) AND 5V SUPPLY (DF1760) COMPACT 28-PIN PACKAGES: 28-Pin DIP and SOIC
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Supply Voltage .................................................................................... 7.0V
Voltage Mismatch ............................................................................... 0.1V
Digital Input ............................................................................... +VDD +0.5V
VSS 0.5V
Input Current ±20mA
Power Dissipation/P ....................................................................... 460mW
Power Dissipation/U ....................................................................... 440mW
Lead Temperature/P (soldering, 10s) .............................................. 260°C
Lead Temperature/U (soldering, 10s, reflow) ................................... 235°C
Operating Temperature .......................................................... 0°C to +70°c
Storage Temperature ...................................................... 50°C to +125°C
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