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ADC1213D Datasheet(PDF) 21 Page - NXP Semiconductors |
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ADC1213D Datasheet(HTML) 21 Page - NXP Semiconductors |
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21 / 41 page ![]() ADC1213D_SER_5 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Preliminary data sheet Rev. 05 — 23 April 2010 21 of 41 NXP Semiconductors ADC1213D series ADC1213D series 14.5 JESD204A serializer 14.5.1 Digital JESD204A formatter The block placed after the ADC cores is used to implement all functionalities of the JESD204A standard. This ensures signal integrity and guarantees the clock and the data recovery at the receiver side. The block is highly parameterized and can be configured in various ways depending on the sampling frequency and the number of lanes used. Fig 20. CML output connection to the receiver in AC coupling CMLPA/CMLPB CMLNA/CMLNB 12 mA to 26 mA 100 Ω 50 Ω 10 nF 10 nF 005aaa083 VDDD − + RECEIVER Fig 21. General overview of the JESD204A serializer FRAME TO OCTETS F octets SCRAMBLER TX transport layer CF: position of controls bits HD: frame boundary break Padding with Tails bits (TT) Mx(N'xS) bits Lx(F) octets L octets N' = N+CS S samples per frame cycle samples stream to lane stream mapping N bits from Cr0 + CS bits for control N bits from CrM−1 + CS bits for control M CONVERTERS L LANES LANE1 FRAME TO OCTETS F octets SCRAMBLER 8-bit/ 10-bit SER TX CONTROLLER LANE0 8-bit/ 10-bit SER ALIGNMENT CHARACTER GENERATOR ALIGNMENT CHARACTER GENERATOR SYNC~ 005aaa084 |
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