1.1 Features 1
• 14-Bit resolution
• Sample rate:
– DAC: 9GSPS
– ADC: 3GSPS
• RF Frequency range: up to 5.2 GHz
• Maximum RF signal bandwidth
– Quad-channel mode (4T4R): 800 MHz (singleband);
300 MHz (dual-band)
– Dual-channel mode (2T2R): 1200 MHz
(TX)/1000 MHz (RX) (single-band);
800MHz(dual-band)
• On-chip dual selectable DSAs per RX channel
• Integrated TX DSA functionality
• Digital:
– Dual band digital up-converters (DUCs)
– Dual Band digital down-converters (DDCs)
– 32-Bit NCOs for DUCs/DDCs
– Interpolation ratio: 6x, 8x, 9x, 12x, 16x, 18x,
24x, 36x
– Decimation ratio: /2, /3, /4, /6, /8, /9, /12, /16,
/18, /24, /32
– RX/FB Dynamic switching for TDD
• Interface:
– 8 SerDes Transceivers up to 15Gbps
– 16-Bit and 12-bit JESD204B transport layer
formatting with 8b/10b encoding
– Subclass 1 multi-device synchronization
• Clock:
– Internal PLL/VCO to generate DAC and ADC
clocks
• Package: 17mm x 17mm FC BGA, 0.8mm pitch
• Power supplies: 1.85 V, 1.15 V, 1.0 V, –1.8 V

1.2 Applications
• Cellular base stations
• Wideband communications
• Microwave backhaul
• Distributed antenna systems (DAS)

1.3 Description
The AFE76xx is a family of high performance, quad/dual channel, 14-bit, integrated RF sampling analog
front ends (AFEs) with 9 GSPS DACs and 3 GSPS ADCs, capable of synthesizing and digitizing wideband
signals. High dynamic range allows the AFE76xx to generate and digitize 3G/4G signals for wireless base
stations. In TDD mode, the receiver channel can be configured to dynamically switching between traffic
receiver (TDD RX) status and wideband feedback receiver (TDD FB) status to assist DPD (Digital Pre-
Distortion) of the Power Amplifier (PA) on the transmitter path.
The AFE76xx family has integrated DSA on the receiver channels and also supports DSA equivalent
functionality on the transmitter channels. Each receiver channel has one analog RF peak power detector
and various digital power detectors to assist AGC control for receiver channels, and two RF overload
detectors for device reliability protection. The AFE76xx family has 8 of JESD204B compatible SerDes
transceivers running up to 15 Gbps. The devices have up to two DUCs per TX channel and two DDCs per
RX channel, with multiple interpolation/decimation rates and digital quadrature modulators/demodulators
with independent, frequency flexible NCOs. The devices support more than 1000 MHz (800 MHz as
4T4R) RF signal bandwidth in single-band mode, and up to 800 MHz (300 MHz as 4T4R) RF signal
bandwidth per band in dual-band mode. A low jitter PLL/VCO simplifies the sampling clock generation by
allowing use of a lower frequency reference clock.