Summary of Contents for Linear Technology LTC2268-14
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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1532 12/14 BIT, 25 TO 125 MSPS DUAL ADC LTC2268-14, LTC2268-12, LTC2267-14, LTC2267-12, LTC2266-14, LTC2266-12, LTC2265-14, LTC2265-12, LTC2264-14, LTC2264-12, LTC2263-14, LTC2263-12 DESCRIPTION Demonstration circuit 1532 supports a family of 14/12 ate ADC. The circuitry on the analog inputs is opti- BIT 125 MSPS ADCs.
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1532 12/14 BIT, 25 TO 125 MSPS DUAL ADC Table 2. Performance Summary (T = 25° C) PARAMETER CONDITION VALUE Optimized for 3V Depending on sampling rate and the A/D converter Supply Voltage – DC1532A provided, this supply must provide up to 500mA.
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To provided power supply 3.5-6V Analog Inputs Channel 1 To provided USB cable Channel 2 Parallel/Serial Single Ended Encode Clock (Use provided DC1075, di- vide by 4 clock board) Figure 1. DC1532 Setup (zoom for detail)
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DC1532 DEMONSTRATION CIRCUIT J14: LANE: Selects either 1 lane or 2 lane BOARD JUMPERS output modes (Default – Removed) NOTE: The DC1532 demonstration circuit board The DC1371 does not support 1 lane opera- should have the following jumper settings as tion.
“J6 AIN3”, “J7 AIN4”. These inputs corre- System Software provided or downloaded spond with channels 1-4 of the ADC respec- from the Linear Technology website at tively. These inputs are capacitive coupled to http://www.linear.com/software/. Balun transformers ETC1-1-13. To start the data collection software if “PScope.exe”, is installed (by default) in...
SERIAL PROGRAMMING Randomizer – Enables Data Output Random- PScope has the ability to program the DC1532 izer board serially through the DC1371. There are several options available in the LTC2268 family - Off (Default) – Disables data output randomizer that are only available through serially pro- - On –...
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- On – Enables internal termination Outputs – Enables Digital Outputs - Enabled (Default) – Enables digital outputs - Disabled – Disables digital outputs Test Pattern – Selects Digital output test pat- terns. The desired test pattern can be entered into the text boxes provided.
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