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Overview:

The AFE7684IABJ is a high-performance four-channel, 14-bit integrated RF sampling analog front end (AFE) with nine GSPS Dacs and three GSPS ADCs that support synthetic and digital broadband signals. The high dynamic range enables the AFE7684 to generate and digitize 3G/4G signals for wireless base stations.

The AFE76xx series features an integrated DSA on the receiver channel while supporting the DSA equivalent on the transmitter channel. Each receiver channel has an analog RF peak power detector and multiple digital power detectors to assist with automatic gain control (AGC) on the receiver channel, and two RF overload detectors to protect device reliability.

Features:

14-bit resolution

Sampling rate

DAC: 9GSPS

ADC: 3GSPS

Rf frequency range: up to 5.2GHz

Maximum RF signal bandwidth

Four-channel mode (4T4R) : 800MHz (single band); 300MHz (dual band)

Dual channel mode (2T2R) : 1200MHz (TX)/1000MHz (RX) (single band); 800MHz (dual band)

Two optional on-chip DSA/RX channels

Integrated TX DSA function

figure

Dual band Digital Boost Converter (DUC)

Dual-band digital downconverter (DDC)

32-bit NCO for DUC/DDC

Interpolation ratio: 6x, 8x, 9x, 12x, 16x, 18x, 24x, 36x

Extraction rate: /2, /3, /4, /6, /8, /9, /12, /16, /18, /24, /32

RX/FB dynamic transformation for TDD

port

Eight SerDes transceivers up to 15Gbps

16-bit and 12-bit JESD204B transport layer format in 8b/10b encoding

Subclass 1 Multi-device synchronization

clock

Internal PLL/VCO for generating DAC and ADC clocks

Package: 17mm x 17mm FC BGA with 0.8mm pitch

Power supply: 1.85V, 1.15V, 1.0V, -1.8V

Applications

Cell base station

Broadband communication

Microwave back transmission

Distributed Antenna System (DAS)

AFE7684IABJ: Four-channel RF sampling analog Front end (AFE) with dual-band DUC/DDC.

Contact: Mr. Chen

Tel: +8613410018555

Email: sales@hkmjd.com