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PCM1794ADBR
+NomenclatureIC DAC/AUDIO 24BIT 200K 28SSOP
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FabricantTexas Instruments
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Pièce fabricant #PCM1794ADBR
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Package SSOP-28
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En stock5340
365 Garantie qualité 24h/24
7*24 Garantie de service 24h/24
90-Garantie après-vente 24h/24
Garantie produit authentique
Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | DAC, Audio |
| Number of Channels | 3 |
| Resolution(Bits) | 24 b |
| Sampling Rate(Per Second) | 200k |
| Data Interface | I²S |
| Voltage Supply Source | Analog and Digital |
| Voltage - Supply | 3V ~ 3.6V, 5V |
| Operating Temperature | -25°C ~ 85°C |
| Mounting Type | Surface Mount |
Présentation
Description
The PCM1794ADBR features differential current outputs, which enhance performance by reducing noise and distortion. It is compatible with various audio data formats, including I2S, left-justified, and right-justified, offering flexibility in system design. The device operates on dual power supplies: 5V for the analog section and 3.3V for the digital section, ensuring optimal performance.
Housed in a 28-pin SSOP package, the PCM1794ADBR is suitable for professional audio equipment, home theater systems, and other high-end audio applications where clarity and precision are critical. Its robust performance and versatile interface options make it a popular choice among audio engineers and designers.
Equivalent
1. AK4490EQ - by Asahi Kasei Microdevices, offering similar high-resolution audio performance.
2. ES9038Q2M - by ESS Technology, known for its high dynamic range and low distortion.
3. CS4398 - by Cirrus Logic, providing advanced audio quality with similar specifications.
These alternatives offer comparable features for high-fidelity audio applications. Always review datasheets for specific requirements.
Features
1. Resolution and Performance: It offers 24-bit resolution and supports up to 192 kHz sampling rates, ensuring high-quality audio output.
2. Dynamic Range and SNR: The DAC boasts an impressive dynamic range of 127 dB and a signal-to-noise ratio (SNR) of 127 dB, providing clear and detailed sound.
3. Distortion: It features a low total harmonic distortion plus noise (THD+N) of -108 dB, minimizing audio distortion.
4. Architecture: Utilizes a 4th-order sigma-delta modulator and an 8x oversampling digital filter for superior audio performance.
5. Output: Supports both differential and single-ended outputs, offering flexibility in audio design applications.
6. Power Supply: Operates with a dual power supply, ±5V for analog and 3.3V for digital, optimizing performance.
7. Interface: Compatible with various digital audio interfaces, including I2S, left-justified, and right-justified formats.
8. Applications: Ideal for high-end audio applications like home theater systems, professional audio equipment, and high-fidelity sound systems.
These features make the PCM1794ADBR a preferred choice for applications requiring high-resolution audio conversion.
Pinout
- Digital Interface Pins: These include pins for digital audio input such as Data (DIN), Bit Clock (BCK), and Word Clock (LRCK).
- Control Pins: These are used for mode settings and include pins like Mode Control 0 (MD0) and Mode Control 1 (MD1).
- Analog Output Pins: The DAC provides differential outputs with pins for Left Channel (+LOUT, -LOUT) and Right Channel (+ROUT, -ROUT).
- Power Supply Pins: Separate pins for digital (VDD) and analog (VCC) power supply ensure reduced noise and improved performance.
- Ground Pins: These provide grounding for digital (DGND) and analog (AGND) sections.
- Additional Pins: Include functions like Zero Detection (ZERO), which indicates when the audio input is zero, and De-Emphasis (DEM), used for emphasis control.
The PCM1794ADBR is designed for high-end audio applications, offering superb sound quality with low distortion and high dynamic range.