Texas Instruments LMH5401IRMSR | Demoboard TIDA-010122

Description

This reference design provides the solution for synchronization design challenges associated with emerging 5G adapted applications like massive multiple input multiple output (mMIMO), phase array RADAR and communication payload. The typical RF front end contains antenna, low noise amplifier (LNA), mixer , local oscillator (LO) in analog domain and analog to digital converter, numerical controlled oscillator (NCO) and digital down converter (DDC) in digital domain. To achieve overall system synchronization these digital blocks need to be synchronize with system clock. This reference design uses ADC12DJ3200 data converter, achieve less than 5-ps channel-to-channel skew across multiple receiver with deterministic latency by synchronizing on chip NCO with SYNC~ and uses noiseless aperture delay adjustment (tAD Adjust) feature to further reduce skew. This design also provides a very low phase noise clocking solution based the LMX2594 wide band PLL and the LMK04828 synthesizer and jitter cleaner.

Features

• Gain Bandwidth Product (GBP): 8 GHz
• Excellent Linearity Performance: DC to 2 GHz, G = 12 dB
• Slew Rate: 17,500 V/μs
• Low HD2, HD3 Distortion (1 VPP, 200 Ω, DE-DE, G = 12 dB):– 100 MHz: HD2 at –104 dBc, HD3 at –96 dBc– 200 MHz: HD2 at –95 dBc, HD3 at –92 dBc– 500 MHz: HD2 at –80 dBc, HD3 at –77 dBc– 1 GHz: HD2 at –64 dBc, HD3 at –58 dBc
• Low IMD2, IMD3 Distortion (2 VPP, 200 Ω, DE-DE, G = 12 dB):– 200 MHz: IMD2 at –96 dBc, IMD3 at –95 dBc– 500 MHz: IMD2 at –80 dBc, IMD3 at –83 dBc– 1 GHz: IMD2 at –70 dBc, IMD3 at –63 dBc
• Input Voltage Noise: 1.25 nV/√Hz
• Input Current Noise: 3.5 pA/√Hz
• Supports Single- and Dual-Supply Operation
• Power Consumption: 55 mA
• Power-Down Feature

Typical applications

• GSPS ADC Drivers / ADC Drivers for High-Speed Data Acquisition / ADC Drivers for 1-GBPS Ethernet over Microwave / DAC Buffers
• IF, RF, and Baseband Gain Blocks / SAW Filter Buffers and Drivers / Balun Replacement DC to 2 GHz

More information

• Datasheet
• IC product information