AD1858: Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs
The AD1857/AD1858 are complete single-chip stereo digital audio playback components. They each comprise an advanced digital interpolation filter, a revolutionary "linearity-compensated" multibit ...More
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AD1858: Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs
Product Description
The AD1857/AD1858 are complete single-chip stereo digital audio playback components. They each comprise an advanced digital interpolation filter, a revolutionary "linearity-compensated" multibit sigma-delta modulator with dither, a jitter-tolerant DAC, switched capacitor and continuous time analog filters and analog output drive circuitry. Other features include digital de-emphasis processing and mute. The AD1857/AD1858 support continuously variable sample rates with essentially linear phase response, and support 50/15 µs digital de-emphasis intended for "Redbook" 44.1 kHz sample frequency playback from Compact Discs. The user must provide a master clock that is synchronous with the left/right clock at 256 or 384 times the intended sample frequency.
The AD1857/AD1858 have a simple but very flexible serial data input port that allows for glueless interconnection to a variety of ADCs, DSP chips, AES/EBU receivers and sample rate converters. The AD1857 serial data input port can be configured in either 16-bit, 18-bit or 20-bit left-justified or I 2 S-justified modes. The AD1858 serial data input port can be configured in either 16-bit right-justified or DSP serial port compatible modes. The AD1857/AD1858 accept serial audio data in MSB first, twos-complement format. A power-down mode is offered to minimize power consumption when the device is inactive. The AD1857/AD1858 operate from a single +5 V power supply. They are fabricated on a single monolithic integrated circuit and housed in 20-pin SSOP packages for operation over the temperature range 0°C to +70°C.
Diagrams
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Functional Block Diagram for AD1858
Stereo, Single Supply 16-, 18- and 20-Bit Sigma-Delta DACs
Functional Block Diagram for AD1858
| Part# | DAC DNR (dB) | SNR (dB) | DAC THD+N @ 1 kHz (-3dB) | Product Description | Price* (1000-4999) | Function |
|---|---|---|---|---|---|---|
| AD1933 | 110 | 110 | 96 | 192 kHz, 24-Bit CODEC w/ PLL | $3.66 | DAC |
| AD1934 | 108 | 108 | 96 | 192 kHz, 24-Bit CODEC w/ PLL, I2C and SPI. | $3.15 | DAC |
| AD1955 | 120 | 120 | 110 | Multibit Sigma-Delta D/A w/ SACD Playback | $6.86 | DAC |
| AD1853 | 116 | 117 | 104 | 24-bit 192 kHz Multibit Sigma-Delta DAC (Current Output) | $7.59 | DAC |
| AD1852 | 114 | 114 | 104 | Stereo, 24-bit 192 kHz Multibit Sigma-Delta D/A (Voltage Output) | $5.57 | DAC |
| AD1854 | 113 | 112 | 97 | Complete Single Chip Stereo Audio D/A | $4.05 | DAC |
| AD1953 | 112 | 112 | 100 | SigmaDSP 3 Ch, 26-/48-Bit Processing D/A | $7.14 | DAC, Signal Processor |
| AD1954 | 112 | 112 | 100 | SigmaDSP 3 Ch, 26-/48-Bit Processing D/A | $7.14 | DAC, Signal Processor |
| AD1833A | 110 | 110 | 95 | Multi-Ch, 24-bit 192 kHz, Sigma-Delta D/A | $3.98 | DAC |
| AD1958 | 109 | 108 | 96 | Stereo, 24-bit 192 kHz Multibit Sigma-Delta D/A w/ PLL | - | DAC |
| AD1851 | 96 | 110 | 90 | 16-Bit, 16 3 FS PCM Audio DACs Dual 5V Supplies | $4.71 | DAC |
| AD1857 | 94 | - | 90 | Stereo, Single Supply 16/18/20-bit Sigma-Delta D/A | - | DAC |
| AD1859 | 94 | - | 88 | Stereo, Single Supply 18-bit Integrated Sigma-Delta D/A | $4.45 | DAC |
| AD1858 | 94 | - | 90 | Stereo, Single Supply 16-bit Sigma-Delta D/A | - | DAC |
| AD1868 | 92 | 98 | 88 | Single Supply Dual 18-Bit Audio DAC | - | DAC |
| AD1866 | 90 | 95 | 86 | Single Supply Dual 16-Bit Audio DAC | $10.57 | DAC |
* 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.