Key facts
- Brand
- Analog Devices
- Model
- AD9858
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-05-03
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Analog Devices AD9858 GSPS Direct Digital Synthesizer Datasheet Rev C
The AD9858 is a direct digital synthesizer (DDS) featuring a 10‑bit digital‑to‑analog converter (DAC) operating up to 1 GSPS. It provides fast frequency hopping, a 32‑bit programmable frequency register, and an integrated 2 GHz mixer for agile clock synthesis and VHF/UHF LO generation. The device supports both parallel (8‑bit) and serial (SPI) programming interfaces and includes an internal charge pump and phase‑frequency detector for PLL functions.
Key specifications include a 3.3 V supply (typical), power dissipation of about 2 W, and an operating temperature range of –40 °C to +85 °C. The part is offered in a 100‑lead thin‑quad flat package with an exposed thermal pad and is RoHS compliant. Applications span cellular base‑station hopping synthesizers, radars, SONET/SDH clock synthesis, and instrumentation.
Analog Devices AD9858 specifications
| Internal clock speed | 1 GSPS |
|---|---|
| Input clock frequency range | Up to 2 GHz (selectable divide‑by‑2) |
| DAC resolution | 10 bits |
| Power dissipation (typical) | 2 W |
| Operating temperature range | –40 °C to +85 °C |
| Maximum junction temperature | 150 °C |
Source: Analog Devices AD9858 GSPS Direct Digital Synthesizer Datasheet Rev C
All Analog Devices AD9858 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum input clock frequency for the AD9858?
The AD9858 can accept an input clock of up to 2 GHz when the divide‑by‑2 option is selected.
From: Analog Devices AD9858 GSPS Direct Digital Synthesizer Datasheet Rev C
What is the typical power dissipation of the AD9858?
Typical power dissipation is about 2 W under full‑load conditions.
From: Analog Devices AD9858 GSPS Direct Digital Synthesizer Datasheet Rev C
What is the maximum internal clock speed of the AD9858?
The AD9858 operates with an internal clock speed of 1 GSPS.
What is the allowed operating temperature range for the AD9858?
The device is specified to operate from –40 °C to +85 °C.
What is the maximum internal clock speed of the AD9858?
The AD9858 operates with a 1 GSPS internal clock speed.
From: Analog Devices AD9858 Direct Digital Synthesizer Datasheet
What temperature range can the AD9858 operate in?
It is specified for an industrial temperature range of –40 °C to +85 °C.
From: Analog Devices AD9858 Direct Digital Synthesizer Datasheet