PRODUCT OVERVIEW
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 deci mation filter with programmable decimation factor. An auto matic gain control (AGC) circuit gives the AD9864 12 dB of
continuous gain adjustment. Auxiliary blocks include both clock and LO synthesizers.

FEATURES
10 MHz to 300 MHz input frequency
6.8 kHz to 270 kHz output signal bandwidth
7.5 dB SSB NF
–7.0 dBm 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 sythesizer settings
370 Ω input impedance
2.7 V to 3.6 V supply voltage
Low current consumption: 17 mA
48-lead LFCSP package

APPLICATIONS
Multimode narrow-band radio products
  Analog/digital UHF/VHF FDMA receivers
  TETRA, APCO25, GSM/EDGE
Portable and mobile radio products
SATCOM terminals