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LM97937RMET bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM97937RMET bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 80 page ±120 ±100 ±80 ±60 ±40 ±20 0 0.0 50.0 100.0 150.0 Frequency [MHz] C063 Input = 150 MHz, -3dBFS SNRBoost Mode SNR = 71.4 dBFS (100MHz) SFDR = 88.2 dBFS LM97937 www.ti.com SNVS990A – DECEMBER 2013 – REVISED JANUARY 2014 LM97937 Dual 370 MSPS Receiver and Feedback IC With SNRBoost, Bit-Burst, and JESD204B Outputs Check for Samples: LM97937 1 FEATURES DESCRIPTION • Conversion Rate: 370 MSPS The LM97937 device is a dual-channel 370 MSPS • 1.7 VP-P Input Full Scale Range analog-to-digital converter (ADC) with JESD204B • SNRBoost Noise Shaping with 100 MHz interface operating up to 7.4 Gb/s. SNRBoost Bandpass Bandwidth technology with bandpass spectral shaping improves the noise density at the intermediate frequency and – Noise Spectral Density: –152.0 dBFS/Hz Bit-Burst technology provides temporary and periodic – Programmable Passband Center Frequency resolution enhancement. The integrated input buffer • Bit-Burst Resolution Switching reduces charge kick-back noise and eases the system level design of the driving amplifier, anti- – Resolutions: 9-bit (Low-Res), 14-bit (Hi-Res) aliasing filter and impedance matching. An input – Hi-Res Noise Density: –152.7 dBFS/Hz sampling clock divider provides integer divide ratios – Programmable Burst Configurations with configurable phase selection to simplify system clocking. The device comes in a 56-pin, 8-mm × 8- • Performance mm QFN package. – 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 x 8 mm, 0.5mm pin- pitch) Figure 1. 1-Tone Spectrum, SNRBoost Mode, 150 MHz APPLICATIONS • High IF Sampling Receivers • Multi-Carrier Base Station Receivers – GSM/EDGE, CDMA2000, UMTS, LTE, and WiMax • Diversity, Multi-Mode and Multiband Receivers • Digital Pre-Distortion 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2013–2014, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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