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DESCRIPTION
Demonstration circuit 2191A supports the
high speed, high dynamic range DAC driving the LT5579
upconverting mixer.
The circuitry on the DAC IF output is optimized for analog
frequencies from DC to 500MHz. The circuitry on the LO input
is optimized for frequencies from 1000MHz to 4300MHz.
PERFORMANCE SUMMARY
PARAMETER
Supply Voltage – DC2191
Sampling Frequency (Sample Clock Frequency)*
Sample Clock Level (Single-Ended)
LVDS Inputs
LO Input Frequency Range
*DC2191A-A Features the LTC2000-16, 16-Bit, 2.5Gsps DAC
DEMO MANUAL DC2191A
RF Transmitter Using LTC2000
16-Bit, 2.5Gsps to 2.7Gsps DAC
LTC
2000, a
The circuitry on the RF output is optimized for frequencies
®
from 2200MHz to 2600MHz.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2191
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Specifications are at T
A
CONDITIONS
This supply must provide up to 1100mA
Use a 50Ω Source
Differential Input Voltage Range
Common Mode Voltage Range
= 25°C
MIN
TYP
4.8
5.0
300
0
±0.2
0.4
750
MAX
UNITS
5.2
V
2500 or 2700
MHz
15
dBm
±0.6
V
1.8
V
4300
MHz
dc2191afa
1

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Summary of Contents for Linear Technology DC2191A

  • Page 1 DC to 500MHz. The circuitry on the LO input L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear is optimized for frequencies from 1000MHz to 4300MHz. Technology Corporation. All other trademarks are the property of their respective owners.
  • Page 2: Quick Start Procedure

    DC2191, the two boards should first be bolted together and LTDACGen should report back that it is connected to the a proper connection should be made. If Linear Technology FPGA. See Figure 2: provided the Stratix IV board the proper bit file is already...
  • Page 3 DEMO MANUAL DC2191A QUICK START PROCEDURE SINGLE-ENDED SAMPLE CLOCK INPUT RF OUTPUT LO INPUT JUMPERS SHOWN IN THEIR DEFAULT POSITIONS THE DC2191 CONNECTS TO THE ALTERA STRATIX IV CONNECT USB TO PC RUNNING LTDACGen SOFTWARE GX FPGA DEVELOPMENT BOARD VIA HSMC CONNECTORS Figure 1.
  • Page 4 DEMO MANUAL DC2191A QUICK START PROCEDURE Figure 2. LTDACGen Connected to FPGA dc2191afa...
  • Page 5 DEMO MANUAL DC2191A QUICK START PROCEDURE Figure 3. Default Frequency dc2191afa...
  • Page 6: Sample Clock

    DEMO MANUAL DC2191A QUICK START PROCEDURE ANALOG OUTPUT NETWORK J6: LO Input Signal. This is the local oscillator input to the upconverting mixer. Nominal power level is 0dBm. The analog output network of the DC2191 has been de- signed to maximize the performance of the LTC2000. The J8: SYNC.
  • Page 7 DEMO MANUAL DC2191A VP1: This is a test point that is at the output of the on- JP2: SPI and JTAG. This jumper selects how the FPGA is board switching regulator. It is meant for test purposes. programmed. In the SPI position the FPGA is programmed It can also be driven to 2.5V to shut down the output of...
  • Page 8: Parts List

    DEMO MANUAL DC2191A PARTS LIST ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components C1, C25, C26, C29, C31, C32, C33, C34, CAP., X7R, 0.1µF, 16V 10% 0402 AVX, 0402YC104KAT2A C35, C36, C37, C71, C72 C2, C3, C8, C19, C78, C94 CAP., NPO, 0.01µF, 25V, 5%, 0603...
  • Page 9 DEMO MANUAL DC2191A PARTS LIST ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER CONNECTOR, USB TYPE B, RIGHT ANGLE PCB FCI, 61729-0010BLF MOUNT HEADER, 2 × 5, 0.100 SAMTEC, TSW-105-07-L-D J10, J11 CONNECTOR, HSMC SAMTEC, ASP-122952-01 L1, L2, L3, L4, L6, L7 FERRITE BEAD, 33Ω...
  • Page 10 I.C., LOW DROPOUT REGULATOR, 3mm × 3mm, DFN LINEAR TECH., LT3080EDD#PBF I.C., 80V IDEAL DIODE, DFN-6L LINEAR TECH.,LTC4359HDCB#TRPBF IC, MIXER LINEAR TECH, LTC5579IUH XJP1, XJP2 SHUNT, 2mm SAMTEC, 2SN-BK-G CRYSTAL, 12.0MHz, SMT ABRACON, ABMM2-12.000MHZ-E2-T DC2191A-A Required Circuit Components GENERAL BOM DC2191A IC, 16-BIT 2.5Gsps DAC LINEAR TECH. LTC2000IY-16 dc2191afa...
  • Page 11: Schematic Diagram

    DEMO MANUAL DC2191A SCHEMATIC DIAGRAM dc2191afa...
  • Page 12 DEMO MANUAL DC2191A SCHEMATIC DIAGRAM dc2191afa...
  • Page 13 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 14 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.
  • Page 15 X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for category: Data Conversion IC Development Tools Click to view products by manufacturer: Analog Devices Other Similar products are found below : EVAL-AD5063EBZ EVAL-AD5422LFEBZ EVAL-AD7265EDZ EVAL-AD7641EDZ EVAL-AD7674EDZ EVAL-AD7719EBZ EVAL- AD7767-1EDZ EVAL-AD7995EBZ AD9114-DPG2-EBZ AD9211-200EBZ AD9251-20EBZ AD9251-65EBZ AD9255-125EBZ AD9284- 250EBZ AD9613-170EBZ AD9627-125EBZ AD9629-20EBZ AD9709-EBZ AD9716-DPG2-EBZ AD9737A-EBZ AD9787-DPG2-EBZ AD9993-EBZ DAC8555EVM ADS5482EVM ADS8372EVM EVAL-AD5061EBZ EVAL-AD5062EBZ EVAL-AD5443-DBRDZ EVAL-...

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