AD6649 Rev. A is a mid-frequency diversity receiver with features such as high signal-to-noise ratio, low spurious dynamic range, and flexible input range.
The AD6649 is a mixed-signal intermediate frequency (IF) receiver that integrates a dual-channel 14-bit 250 MSPS ADC and a broadband digital down-converter (DDC). Designed for low-cost, small-size, wide-bandwidth, and multi-function communication applications, it features high signal-to-noise ratio and low input noise density. The device supports various digital processing functions including a numerically controlled oscillator (NCO), FIR filters, and automatic gain control (AGC). This manual is written in Chinese.
| Resolution | 14 bits |
|---|---|
| Sampling Rate | 250 MSPS |
| Signal-to-Noise Ratio (SNR) | 73.4 dBFS |
| Spurious-Free Dynamic Range (SFDR) | 85 dBc |
| Input Noise Density | -151.2 dBFS/Hz |
| Total Power Dissipation | 1 W |
| Supply Voltage | 1.8 V |
| Package | 64-pin LFCSP |
| Operating Temperature | -40°C to +85°C |
The integrated dual-channel ADC supports a sampling rate of up to 250 MSPS.
It supports TD-SCDMA, WiMax, WCDMA, CDMA2000, GSM, EDGE, and LTE.
Yes, it integrates a broadband digital down-converter (DDC).