AD9874
PRODUCTIONLow Power IF Digitizing Subsystem
- Part Models
- 2
- 1ku List Price
- Starting From $19.44
Part Details
- 10-300 MHz Input Frequency
- Baseband (I/Q) Digital Output
- 2.7-3.6 Supply Voltage
- 10-270 KHz Output Signal Bandwidth
- 8 dB SSB NF
- +1 dBm IIP3 (typ, max. bias)
- 95 dB Dynamic Range with 12 dB Continuous AGC Range Enabled
- -18 or -30 dBm max IF Input with AGC Disabled
- LO and Clock Sampling Synthesizers
- Programmable Decimation Factor, Output Format, AGC, and Synthesizer settings
The AD9874 is a general purpose IF subsystem that digitizes a low level 10-300MHz IF input signal with a bandwidth of up to 270 kHz. The signal chain of the AD9874 contains a low-noise amplifier, mixer, a band pass sigma-delta analog-to-digital converter and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit provides the AD9874 with 12 dB of continuous gain adjustment.
The high dynamic range and inherent anti-aliasing provided by the bandpass sigma delta converter allows the AD9874 to cope with blocking signals 95 dB stronger than the desired signal. Auxiliary blocks include clock and LO synthesizers in addition to a serial peripheral interface port.
The SPI port programs numerous parameters of the AD9874, thus allowing the device to be optimized for any given application. Programmable parameters include synthesizer divide ratios, AGC attenuation and attack/decay time, received signal strength level, decimation factor, output data format, 16 dB attenuator, and the selected bias currents. The bias currents of the LNA and mixer can be further reduced at the expense of degraded performance for battery-powered applications.
APPLICATIONS
- Multimode Narrow-Band Radio Products
- Analog/Digital UHF/VHF FDMA Receivers
- TETRA, APCO25, GSM/EDGE - Portable and Mobile Radio Products
- Base Station Applications
- SATCOM Terminals
Documentation
Data Sheet 1
Technical Articles 3
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9874ABST | 48-Lead LQFP (7mm x 7mm) | ||
| AD9874ABSTRL | 48-Lead LQFP (7mm x 7mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
Dec 7, 2016 - 16_0033 Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products |
||
| AD9874ABST | PRODUCTION | |
| AD9874ABSTRL | PRODUCTION | |
|
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages |
||
| AD9874ABST | PRODUCTION | |
| AD9874ABSTRL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
Evaluation Board for AD9864 and AD9874
Resources
Latest Discussions
No discussions on AD9874 yet. Have something to say?
Start a Discussion on EngineerZone®