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SBAS663 MAY 2014 ADC32J4x Dual-Channel, 14-Bit, 50-MSPS to 160-MSPS, Analog-to-Digital Converters with JESD204B Interface
1 Features 1 3 Description
The ADC32J4x are a high-linearity, ultra-low power, dual-channel, 14-bit, 50-MSPS to 160-MSPS, analogto-digital converter (ADC) family. The devices are designed specifically to support demanding, high input frequency signals with large dynamic range requirements. A clock input divider allows more flexibility for system clock architecture design while the SYSREF input enables complete system synchronization. The ADC32J4x family supports serial low-voltage differential signaling (LVDS) and JESD204B interfaces in order to reduce the number of interface lines, thus allowing high system integration density. The JESD204B interface is a serial interface, where the data of each ADC are serialized and output over only one differential pair. An internal phase-locked loop (PLL) multiplies the incoming ADC sampling clock by 20 to derive the bit clock, which is used to serialize the 14-bit data from each channel. The devices support subclass 1 with interface speeds up to 3.2 Gbps. Device Information(1)
PART NUMBER ADC32J42 ADC32J43 ADC32J44 ADC32J45 (1) For all available packages, see the orderable addendum at the end of the datasheet. VQFN (48) 7.00 mm Ч 7.00 mm PACKAGE BODY SIZE (NOM) 2 Applications Multi-Carrier, Multi-Mode Cellular Base Stations Radar and Smart Antenna Arrays Munitions Guidance Motor Control Feedback Network and Vector Analyzers Communications Test Equipment Nondestructive Testing Microwave Receivers Software-Defined Radios (SDRs) Quadrature and Diversity Radio Receivers Performance at fS = 160 MSPS, fIN = 10 MHz (SNR = 72.5 dBFS, SFDR = 92 dBc)
0 -20
Attenuation (dB) -40 -60 -80 -100 -120 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Frequency (MHz) D001 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCT PREVIEW Information. Product in design phase of development. Subject to change or discontinuance without notice. PRODUCT PREVIEW Dual Channel 14-Bit Resolution Single Supply: 1.8 V Flexible Input Clock Buffer with Divide-by-1, -2, -4 SNR = 72.2 dBFS, SFDR = 87 dBc at fIN = 70 MHz Ultra-Low Power Consumption: 227 mW/Ch at 160 MSPS Channel Isolation = 105 dB Internal Dither JESD204B Serial Interface: Subclass 0, 1, 2 Comp …
