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DF1760

Part Number	DF1760
Manufacturer	Burr-Brown Corporation
Description	Multi-Bit Enhanced Noise Shaping 20-Bit ANALOG-TO-DIGITAL CONVERSION SYSTEM
Published	Mar 30, 2005
Detailed Description	® PCM1760P/U DF1760P/U Multi-Bit Enhanced Noise Shaping 20-Bit ANALOG-TO-DIGITAL CONVERSION SYSTEM FEATURES q DUAL 20-...
Datasheet	DF1760 PDF File

Overview

® PCM1760P/U DF1760P/U Multi-Bit Enhanced Noise Shaping 20-Bit ANALOG-TO-DIGITAL CONVERSION SYSTEM FEATURES q DUAL 20-BIT MONOLITHIC MODULATOR (PCM1760) AND MONOLITHIC DECIMATING DIGITAL FILTER (DF1760) q HIGH PERFORMANCE: THD+N: –92dB typ, –90dB max Dynamic Range: 108dB typ SNR: 108dB min, 110dB typ Channel Separation: 98dB typ, 94dB min q 64X OVERSAMPLING q CO-PHASE CONVERSION q RUNS ON 256fs OR 384fs SYSTEM CLOCK q VERSATILE INTERFACE CAPABILITY: 16-, 20-Bit Output MSB First or LSB First Format q OPTIONAL FUNCTIONS: Offset Error Calibration Overflow Detection Power Down Mode (DF1760) q RUNS ON ±5V SUPPLIES (PCM1760) AND 5V SUPPLY (DF1760) q COMPACT 28-PIN PACKAGES: 28-Pin DIP and SOIC PCM1760 DESCRIPTION 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.
DF1760 Analog Input (L) 4 Stage, 4-Bit Delta-Sigma Modulator 64fs 64fs Timing Control and Interface 256fs 1/16 Filter 4fs FIR Filter fs Timing Control and Interface Data Analog Input (R) 4 Stage, 4-Bit Delta-Sigma Modulator System Clock 256/384fs International Airport Industrial Park • Mailing Address: PO Box 11400 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • © • Tucson, AZ 85734 • Street Address: 6730 S.
Tucson Blvd.
• Tucson, AZ 85706 Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 PDS-1174C Printed in U.
S.
A.
July, 1994 1993 Burr...

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