DF1760U

Voltage Reference :
Number of Converters : 2
Interface Type : Serial
Mounting Style : SMD/SMT
Architecture : Delta-Sigma
Packaging : Tube
Input Type : Voltage
Number of ADC Inputs : 1
Supply Voltage - Max : 5.25 V
Maximum Operating Temperature : + 70 C
Supply Voltage - Min : 4.75 V
Package / Case : SO-20
Resolution : 20 bit
Maximum Power Dissipation : 275 mW
Conversion Rate : 48 KSPs
SNR : 110 dB


Features:

 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 min
 64X OVERSAMPLING
 CO-PHASE CONVERSION
 RUNS ON 256fs OR 384fs SYSTEM CLOCK
 VERSATILE INTERFACE CAPABILITY: 16-, 20-Bit Output MSB First or LSB First Format
 OPTIONAL 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


Pinout




Specifications

Supply Voltage .................................................................................... 7.0V
Voltage Mismatch ............................................................................... 0.1V
Digital Input ............................................................................... +V_DD +0.5V
V_SS 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


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.

Parameters:

Technical/Catalog Information	DF1760U
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Number of Bits	20
Package / Case	20-SOP
Data Interface	Serial
Packaging	Tube
Sampling Rate (Per Second)	192k
Operating Temperature	0°C ~ 70°C
Voltage Supply Source	Analog and Digital, Dual ±
Number of Inputs and Type	2 Single-Ended, Bipolar
Number of Converters	2
Power Dissipation (Max)	275mW
Drawing Number	296; 4040062; NS; 14, 16, 20, 24
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	DF1760U DF1760U