Key facts
- Brand
- Analog Devices
- Model
- AD9874
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2000-01-01
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Analog Devices AD9874 IF Digitizing Subsystem Datasheet
The AD9874 is a general-purpose IF subsystem designed to digitize low-level 10 MHz to 300 MHz IF inputs with a signal bandwidth ranging from 6.8 kHz to 270 kHz. The device integrates a low noise amplifier, a mixer, a band-pass sigma-delta analog-to-digital converter, and a decimation filter with a programmable decimation factor. It also includes an automatic gain control (AGC) circuit, clock and LO synthesizers, and various programmable parameters to optimize performance for different applications.
The subsystem is suitable for multimode narrow-band radio products, analog/digital UHF/VHF FDMA receivers, and portable/mobile radio products. It features a high dynamic range and inherent antialiasing, allowing it to cope with blocking signals up to 95 dB stronger than the desired signal. The device operates with a supply voltage of 2.7 V to 3.6 V and is available in a 48-lead LQFP package.
Analog Devices AD9874 specifications
| Input Frequency Range | 10 MHz to 300 MHz |
|---|---|
| Output Signal Bandwidth | 7.2 kHz to 270 kHz |
| Single Sideband Noise Figure | 8.1 dB (typical) |
| Input Third Order Intercept (IIP3) | -5 dBm (typical) |
| Supply Voltage | 2.7 V to 3.6 V |
| Package Type | 48-Lead LQFP |
| ADC Resolution | 16 or 24 Bits |
| Operating Temperature Range | -40 to +85 °C |
Source: Analog Devices AD9874 IF Digitizing Subsystem Datasheet
All Analog Devices AD9874 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the input frequency range of the AD9874?
The AD9874 accepts an IF input frequency ranging from 10 MHz to 300 MHz.
From: Analog Devices AD9874 IF Digitizing Subsystem Datasheet
Does the AD9874 include an Automatic Gain Control circuit?
Yes, the device includes an automatic gain control (AGC) circuit that provides 12 dB of continuous gain adjustment.
From: Analog Devices AD9874 IF Digitizing Subsystem Datasheet
What is the input frequency range of the AD9874?
The AD9874 accepts input frequencies from 10 MHz to 300 MHz.
What supply voltage does the AD9874 require?
The device operates from a supply voltage of 2.7 V to 3.6 V.
What is the input frequency range of the AD9874?
The AD9874 accepts an IF input from 10 MHz up to 300 MHz.
What is the single‑sideband noise figure of the AD9874?
The device has an SSB noise figure of 8.1 dB.