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LMH0395 Datasheet(PDF) 23 Page - Texas Instruments |
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LMH0395 Datasheet(HTML) 23 Page - Texas Instruments |
23 / 33 page ![]() VCC LMH0395 VEE SDI SDI SDO1 DAP 3 4 6 13 17 18 SPI_EN SDO1 SS Coaxial Cable 75: 49.9: 75: 5.6 nH 1.0 PF 1.0 PF 1.0 PF VCC 0.1 PF Differential Outputs VCC 0.1 PF MUTEREF (SPI) SS (SPI) MOSI (SPI) SCK (SPI) MISO SDO0 14 15 SDO0 1 2 VEE 5 VEE 16 VEE SDO1_DISABLE CD LMH0395 www.ti.com SNLS323M – AUGUST 2010 – REVISED JULY 2015 8.2 Typical Application Figure 16 shows the application circuit for the LMH0395 in SPI mode. (Note: The application circuit shows an external capacitor connected between the AEC+ and AEC- pins as commonly configured in legacy equalizers. This capacitor is optional and not necessary for the LMH0395; the AEC+ and AEC- pins may be left unconnected with no change in performance.) Figure 16. Application Circuit (SPI Mode) 8.2.1 Design Requirements Table 2 lists the design parameters of the LMH0395. Table 2. LMH0395 Design Parameters DESIGN PARAMETERS REQUIREMENTS Required. A common type of AC coupling capacitor Input AC coupling capacitors is 1 µF ± 10% X7R ceramic capacitor (0402 or 0201 size). Keep this distance as short as possible to minimize Distance from Device to BNC parasitic Design single-ended trace impedance with 75 Ω ± High Speed SDI, and SDI, trace impedance 5% High Speed SDO0, SDO0, SDO1, and SDO1 trace Design differential trace impedance with 100 Ω ± impedance 5% To minimize power supply noise, use 0.1-µF DC Power Supply Coupling Capacitors capacitors as close to the device VDD pin as possible 8.2.2 Detailed Design Procedure To begin the design process, determine the following: 1. Maximum power draw for PCB regulator selection: Use maximum current consumption in the data sheet to compute maximum power consumption. Copyright © 2010–2015, Texas Instruments Incorporated Submit Documentation Feedback 23 Product Folder Links: LMH0395 |
Similar Part No. - LMH0395_15 |
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Similar Description - LMH0395_15 |
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