AD6679 135 MHz BW IF Diversity Receiver

The AD6679 is a 135 MHz bandwidth mixed-signal intermediate frequency (IF) receiver. It consists of two, 14-bit, 500 MSPS analog-to-digital converters (ADCs) and various digital signal processing blocks consisting of four wideband DDCs, an NSR, and VDR monitoring. It has an on-chip buffer and a sample-and-hold circuit designed for low power, small size, and ease of use. This product is designed to support communications applications capable of sampling wide bandwidth analog signals of up to 2 GHz. The AD6679 is optimized for wide input bandwidth, high sampling rates, excellent linearity, and low power in a small package.

The dual ADC cores feature a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth inputs supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations.

Applications

Features and Benefits
  • Parallel LVDS (DDR) outputs
  • In-band SFDR = 82 dBFS at 340 MHz (500 MSPS)
  • In-band SNR = 67.8 dBFS at 340 MHz (500 MSPS)
  • 1.1 W total power per channel at 500 MSPS (default settings)
  • Noise density = −153 dBFS/Hz at 500 MSPS
  • 1.25 V, 2.50 V, and 3.3 V dc supply operation
  • Flexible input range: 1.46 V p-p to 2.06 V p-p (2.06 V p-p nominal)
  • 95 dB channel isolation/crosstalk
  • Amplitude detect bits for efficient automatic gain control (AGC) implementation
  • Noise shaping requantizer (NSR) option for main receiver function
  • See data sheet for additional features
  • RF & Microwave
    Data Sheets
    Documentnote
    AD6679: 135 MHz BW IF Diversity Receiver Data Sheet (Rev. B)PDF 1.72 M
    Application Notes
    Documentnote
    AN-1371: Variable Dynamic Range (Rev. 0)PDF 521.73 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD6679BBPZ-500 Production196 ball (12x12x1.38 w/7.5mm EP)OTH 189-40 to 85C320272Y
    AD6679BBPZRL7-500 Production196 ball (12x12x1.38 w/7.5mm EP)REEL 500-40 to 85C320272Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    AD6679-500EBZEvaluation Board795Y
    AD6679: 135 MHz BW IF Diversity Receiver Data Sheet (Rev. B) ad6679
    AN-1371: 可变动态范围 (Rev. 0) ad6674
    AN-1371: Variable Dynamic Range (Rev. 0) ad6674