AD9864
PRODUCTIONIF Digitizing Subsystem
- Part Models
- 2
- 1ku List Price
- Starting From $14.22
Part Details
- 10 MHz to 300 MHz input frequency
- 6.8 kHz to 270 kHz output signal bandwidth
- 7.5 dB single sideband noise figure (SSB NF)
- −7.0 dBm input third-order intercept (IIP3)
- AGC free range up to −34 dBm
- 12 dB continuous AGC range
- 16 dB front-end attenuator
- Baseband I/Q 16-bit (or 24-bit) serial digital output
- LO and sampling clock synthesizers
- Programmable decimation factor, output format, AGC, and synthesizer settings
- 370 Ω input impedance
- 2.7 V to 3.6 V supply voltage
- Low current consumption: 17 mA
- 48-lead LFCSP package
The AD9864 is a general-purpose IF subsystem that digitizes a low level, 10 MHz to 300 MHz IF input with a signal bandwidth ranging from 6.8 kHz to 270 kHz. The signal chain of the AD9864 consists of a low noise amplifier (LNA), a mixer, a band-pass Σ-∆ analog-to-digital converter (ADC), and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit gives the AD9864 12 dB of continuous gain adjustment. Auxiliary blocks include both clock and local oscillator (LO) synthesizers.
The high dynamic range of the AD9864 and inherent antialiasing provided by the band-pass Σ-∆ converter allow the device to cope with blocking signals up to 95 dB stronger than the desired signal. This attribute often reduces the cost of a radio by reducing IF filtering requirements. Also, it enables multimode radios of varying channel bandwidths, allowing the IF filter to be specified for the largest channel bandwidth.
The SPI port programs numerous parameters of the AD9864, 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 AD9864 is available in a 48-lead LFCSP package and operates from a single 2.7 V to 3.6 V supply. The total power consumption is typically 56 mW and a power-down mode is provided via serial interfacing.
Applications
- Multimode narrow-band radio products
Analog/digital UHF/VHF FDMA receivers
TETRA, APCO25, GSM/EDGE - Portable and mobile radio products
- SATCOM terminals
Documentation
Data Sheet 1
Technical Articles 2
Frequently Asked Question 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 |
|---|---|---|---|
| AD9864BCPZ | 48-Lead LFCSP (7mm x 7mm w/ EP) | ||
| AD9864BCPZRL | 48-Lead LFCSP (7mm x 7mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea |
||
| AD9864BCPZ | PRODUCTION | |
| AD9864BCPZRL | PRODUCTION | |
|
Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea. |
||
| AD9864BCPZ | PRODUCTION | |
| AD9864BCPZRL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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AD9864 IBIS Models 1
Evaluation Kits
Evaluation Board for AD9864 and AD9874
Resources
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