Key facts
- Brand
- Analog Devices
- Model
- AD1955
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-04
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Analog Devices AD1955 High‑Performance Multibit DAC Datasheet
The AD1955 from Analog Devices is a single‑chip, stereo digital audio playback system that includes a multibit sigma‑delta modulator, digital interpolation filters, and continuous‑time differential current output DACs. It supports 16‑ to 24‑bit data, sample rates from 32 kHz up to 192 kHz, and SACD bit‑stream playback, making it suitable for high‑end DVD‑Audio, home‑theater, automotive, and professional audio applications.
The datasheet provides comprehensive electrical specifications, pin‑out details, timing diagrams, and package information. Key performance figures include a 123 dB mono signal‑to‑noise ratio, –110 dB THD+N, and a differential output range of 8.64 mA p‑p, all powered from a 5 V supply. The device is supplied in a 28‑lead SSOP package and includes on‑chip click‑less volume control and mute functions.
Analog Devices AD1955 specifications
| Signal‑to‑Noise Ratio (Mono) | 123 dB |
|---|---|
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 5 V |
| Differential Output Range | 8.64 mA p‑p |
| Maximum Sample Rate | 192 kHz |
| Package Type | 28‑Lead SSOP |
Source: Analog Devices AD1955 High‑Performance Multibit DAC Datasheet
All Analog Devices AD1955 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage does the AD1955 require?
The AD1955 operates from a 5 V analog and a 5 V digital supply.
From: Analog Devices AD1955 High‑Performance Multibit DAC Datasheet
What is the signal‑to‑noise ratio for the mono output?
The mono output achieves a signal‑to‑noise ratio of 123 dB.
From: Analog Devices AD1955 High‑Performance Multibit DAC Datasheet
What sample rates does the AD1955 support?
It supports PCM sample rates from 32 kHz up to 192 kHz and DSD playback at 64× or 128× the base sampling frequency.
How do you mute the analog outputs of the AD1955?
Assert the MUTE pin (pin 22) high to mute both stereo analog outputs.