LM97937 - 具有 SNRBoost、Bit-Burst 和 JESD204B 输出的 LM97937 双路 9 位 370MSPS ADC

LM97937是TI德州仪器公司的一款宽带接收器产品，LM97937是具有 SNRBoost、Bit-Burst 和 JESD204B 输出的 LM97937 双路 9 位 370MSPS ADC，本站介绍了LM97937的封装应用图解、特点和优点、功能等，并给出了与LM97937相关的TI元器件型号供参考。

LM97937 - 具有 SNRBoost、Bit-Burst 和 JESD204B 输出的 LM97937 双路 9 位 370MSPS ADC - 宽带接收器 - 模拟前端(AFE) - 德州仪器

产品描述

The LM97937 device is a dual-channel 370 MSPS analog-to-digital converter (ADC) with JESD204B interface operating up to 7.4 Gb/s. SNRBoost technology with bandpass spectral shaping improves the noise density at the intermediate frequency and Bit-Burst technology provides temporary and periodic resolution enhancement. The integrated input buffer reduces charge kick-back noise and eases the system level design of the driving amplifier, anti-aliasing filter and impedance matching. An input sampling clock divider provides integer divide ratios with configurable phase selection to simplify system clocking. The device comes in a 56-pin, 8-mm × 8-mm QFN package.

产品特性

Conversion Rate: 370 MSPS
1.7 VP-P Input Full Scale Range
SNRBoost Noise Shaping with 100 MHz Bandpass Bandwidth
- Noise Spectral Density: –152.0 dBFS/Hz
- Programmable Passband Center Frequency
Bit-Burst Resolution Switching
- Resolutions: 9-bit (Low-Res), 14-bit (Hi-Res)
- Hi-Res Noise Density: –152.7 dBFS/Hz
- Programmable Burst Configurations
Performance
- Input: 150 MHz, –3 dBFS
  - SNR (SNRBoost): 71.6 dBFS
  - SNR (Bit-Burst): 69.6 dBFS
  - SFDR: 88 dBFS
  - non-HD2/HD3 SPUR: –90 dBFS
Power Dissipation: 876 mW/channel
Buffered Analog Inputs
On-chip Precision Reference Without External Bypassing
Input Sampling Clock Divider with Phase Synchronization (Divide-by- 1, 2, 4 or 8)
JESD204B Subclass 1 Serial Data Interface
- Lane Rates up to 7.4 Gb/s
- Configurable as 1- or 2-lanes/channel
Fast Over-range Signals
4-wire, 1.2 V, 1.8 V, 2.5V or 3.3V Compatible SPI
56-pin QFN Package, (8 × 8 mm, 0.5mm pin-pitch)

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