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AD74111:  2.5 V, 24-Bit Sigma-Delta Mono CODEC

The AD74111 is a front-end processor for general purpose audio and voice applications. It features a multi-bit Sigma-Delta A/D conversion channel and a multi-bit Sigma-Delta D/A conversion channel. The ADC channel provides >67 dB THD+N and the DAC channel provides >88 dB THD+N both over an audio signal bandwidth.

The AD74111 is particularly suitable for a variety of applications ...More

AD74111:  2.5 V, 24-Bit Sigma-Delta Mono CODEC

Product Description

The AD74111 is a front-end processor for general purpose audio and voice applications. It features a multi-bit Sigma-Delta A/D conversion channel and a multi-bit Sigma-Delta D/A conversion channel. The ADC channel provides >67 dB THD+N and the DAC channel provides >88 dB THD+N both over an audio signal bandwidth.

The AD74111 is particularly suitable for a variety of applications where mono input and output channels are required, including audio sections of Digital Video Camcorders, portable personal audio devices and telematic applications. Its high quality performance also make it suitable for speech and telephony applications such as speech recognition and synthesis and modern feature phones.

An on-chip reference voltage is included but can be overdriven by an external reference source if required.

The AD74111 offers sampling rates which, depending on MCLK selection and MCLK divider ratio, range from 8 kHz in the voiceband range to 48 kHz in the audio range.

The AD74111 is available in 16 lead TSSOP package option and is specified for the automotive temperature range of -40°C to +105°C.

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EVALUATION BOARDS & DEVELOPMENT KITS

  • 2.5 V Mono Audio Codec with 3.3 V Tolerant Digital Interface
  • Supports 8 kHz to 48 kHz Sample Rates
  • Supports 16-/20-/24-Bit Word Lengths
  • Multibit Σ-Δ Modulators with "Perfect Differential Linearity Restoration" for Reduced Idle Tones and Noise Floor
  • Data Directed Scrambling DAC – Least Sensitive to Jitter
  • Programmable ADC Gain
  • On-Chip Volume Control for DAC Channel
  • Software Controllable Clickless Mute
  • Performance (20 Hz to 20 kHz)
    - 85 dB ADC Dynamic Range
    - 93 dB DAC Dynamic Range
  • Supports 256 x fS, 512 x fS, and
    768 x fS Master Mode Clocks
  • Master Clock Prescaler for Use with DSP Master Clocks
  • On-Chip Reference
  • # ADC: 1
  • # DAC: 1
  • ADC Dynamic Range (dB): 85dB
  • ADC SNR (dB): 77dB
  • DAC Dynamic Range (dB): 93dB
  • DAC SNR (dB): 89dB
  • THD+N (dB): ADC: -67,DAC: -88
  • Product Description: Low Cost Mono Audio Codec

Functional Block Diagram for AD74111

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Part# # ADC # DAC ADC Dynamic Range (dB) DAC Dynamic Range (dB) ADC SNR (dB) DAC SNR (dB) THD+N (dB) Product Description Price* (1000-4999)
AD1936 4 8 107 106 107 106 ADC: -92, DAC: -92 192 kHz, 24-Bit CODEC with PLL, Single-Ended Output, I2C Control -
AD1937 4 8 107 109 107 109 ADC: -94, DAC: -94 192 kHz, 24-Bit CODEC with PLL, Differential Output, I2C Control $7.63
ADAU1361 2 2 99 101 99 101 ADC: -90, DAC: -92 Stereo, Low Power, 96 kHz, 24-Bit Audio Codec with Integrated PLL $2.88
SSM2602 2 2 - - 90 100 - Low Pwr, 192 kHz, 24-Bit CODEC w/ mic Bias, I2C and SPI Interface -
AD1836A 4 6 105 108 105 108 ADC: -95, DAC: -95 4 ADC, 6 DAC, 24-Bit, 96 kHz, Multibit Sigma-Delta CODEC $7.68
AD1938 4 8 107 108 107 108 ADC: -94, DAC: -94 192 kHz 24-bit CODEC w/ PLL $7.14
AD1939 4 8 107 112 107 - ADC: -96, DAC: -94 High Performance Multibit Sigma Delta CODEC. $7.72
AD73322 2 2 - - 78 77 ADC: -84, DAC: -80 Dual-Channel, 3 V Front-End Processor for General Purpose Apps Including Speech and Telephony -
AD73322L 2 2 - - 78 78 ADC: -84, DAC: -80 Dual-Channel, 3 V Front-End Processor for General Purpose Apps Including Speech and Telephony $4.86
ADAV803 2 2 102 101 102 101 ADC: -88, DAC: -91 Audio Codec for Recordable DVD $8.29
ADAV801 2 2 102 101 102 101 ADC: -88, DAC: -91 Audio Codec for Recordable DVD $6.74
AD1839A 2 6 105 108 105 108 ADC: -95, DAC: -95 96 kHz, 24-bit Sigma-Delta CODEC -
AD1838A 2 6 105 108 105 108 ADC: -95, DAC: -95 96 kHz, 24-bit Sigma-Delta CODEC $8.80
AD1837A 2 8 105 108 105 108 ADC: -95, DAC: -95 96 kHz, 24-bit Sigma-Delta CODEC -
AD1835A 2 8 105 108 105 108 ADC: -95, DAC: -95 96 kHz, 24-bit Sigma Delta CODEC $9.15
AD73311L 1 1 - - 76 77 ADC: -83, DAC: -70 Single-Channel, 3 V and 5 V Front-End Processor for Gen Purp Apps Including Speech and Telephony $2.69
AD73311 1 1 - - 75 70 ADC: -83, DAC: -70 Single-Channel, 3 V and 5 V Front-End Processor for Gen Purp Apps Including Speech and Telephony $4.17
AD74111 1 1 85 93 77 89 ADC: -67, DAC: -88 Low Cost Mono Audio Codec $2.69
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* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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For detailed drawings and chemical composition please consult our  Package Site

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This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.