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User's Guide

SCAU040–March 2010

Quad Sine-Wave Clock Buffer Evaluation Board

Contents

1 General Description ......................................................................................................... 2

1.1 Features ............................................................................................................. 2

2 Signal Path and Control Circuitry ......................................................................................... 2

3 Getting Started .............................................................................................................. 3

4 Power-Supply Connections ................................................................................................ 3

5 Output Clock ................................................................................................................. 3

6 Enabling/Disabling Outputs ................................................................................................ 3

7 Bill of Materials .............................................................................................................. 4

8 Schematic .................................................................................................................... 6

List of Figures

1 CDC3S04 Evaluation Board............................................................................................... 2

2 Schematic – (1 of 3) ........................................................................................................ 6

3 Schematic – (2 of 3) ........................................................................................................ 7

4 Schematic – (3 of 3) ........................................................................................................ 8

List of Tables

1 Clock Source ................................................................................................................ 3

2 Supply source ............................................................................................................... 3

3 Outputs on the CDC3S04EVM............................................................................................ 3

4 Jumpers to Control the CDC3S04 ........................................................................................ 3

5 Bill of Materials .............................................................................................................. 4

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SCAU040–March 2010 Quad Sine-Wave Clock Buffer Evaluation Board

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Summary of content (10 pages)

PAGE 1
User's Guide SCAU040 – March 2010 Quad Sine-Wave Clock Buffer Evaluation Board 1 2 3 4 5 6 7 8 Contents General Description ......................................................................................................... 1.1 Features ............................................................................................................. Signal Path and Control Circuitry ......................................................................................... Getting Started ................
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General Description www.ti.com Figure 1. CDC3S04 Evaluation Board 1 General Description The CDC3S04 is a four-channel low-power sine-wave clock buffer. It can be used to buffer a single master clock to multiple peripherals. The four sine-wave outputs (CLK1–CLK4) are designed for minimal channel-to-channel skew and ultralow additive output jitter. Each output has its own clock request input which enables the dedicated clock output.
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Getting Started www.ti.com Table 1. Clock Source 3 Component TCXO on board External input R80 Not mounted Not mounted R74 Not mounted Not mounted R98 0R0 Not mounted R97 Not mounted 0R0 C8 15 pF 15 pF Getting Started The CDC3S04EVM has self-explanatory labeling and uses similar naming conventions as the CDC3S04 product data sheet (SCAS883). In this user’s guide, all words in boldface and italic print reflect the actual labeling on the EVM.
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Bill of Materials 7 www.ti.com Bill of Materials Table 5. Bill of Materials 4 QTY Value Designator PKG/CASE Manufacturer Lot Number 10 0.01uF C8, C12, C13, C33, C35, C53, C58, C63, C67, C71 0402 Venkel C0402X7R500-103KNE 15 0.1uF C4, C5, C6, C16, C34, C36, C49, C54, C64, C68, C72, C55, C73, C75, C76 0402 Venkel C0402X7R160-104KNE 2 0.22uF C3, C74 0402 Venkel C0402X5R6R3-224KNE 1 0.47uF C7 0402 Murata Electronics North Am GRM155R61A474KE15D 5 1.
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Bill of Materials www.ti.com Table 5. Bill of Materials (continued) 5 1X3 J66, J67, J68, J69, J74 0.1" HTSW-150-08-G-S K10000012278 4 Banana Plug - Metal P1, P2, P3, P4 4mm Emerson Network Power Co 108-0740-001 5 4-40/0.25"- Screws MH1, MH2, MH3, MH4, MH5 Building Fasteners PMSSS 440 0025 PH 5 0.
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REQ1 V REQ2 4 3 1 1 2 2 V_LDO 0R R98 0R R97 MCLK_IN_2 2 R95 10k J66 Jumper3 2 R100 10k J67 Jumper3 R99 10k TCXO GND GND OUT X1 R74 500R MCLK_IN_1 R94 10k 1 2 J19 1 1.8V_Vdd_DIG 3 1.8V_Vdd_DIG 2 3 4 5 1 2 1 2 1 C8 R96 5k1 REQ3 15PF 2 E3 SDAH R102 10k J68 Jumper3 Adj_V REQ4 REQ3 REQ2 REQ1 VBAT 2 R104 10k J69 Jumper3 CDC3S04 VLDO MCLK_REQ CLK4 CLK3 CLK2 CLK1 1.8V_Vdd_DIG R103 10k 1.
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Copyright © 2010, Texas Instruments Incorporated JTAG J70 1 2 3 4 5 6 0R0 C12 10nF C13 10nF ADC_0 ADC_1 C6 100nF MCLK_REQ C5 100nF 1.8V_Vdd_MSP + C11 10uF C16 100nF C7 470n DVcc AVcc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Test/SBWTCK TDO TDI TMS TCK RST/NMI/SBWTDIO measurement for Vdd_ANA & Vadj + C15 10uF SW2 SW PUSHBUTTON 1.8V_Vdd_MSP R108 C10 2.2nF DNP R9 47K 1.8V_Vdd_MSP Y1 4MHz C3 220nF P6.4/CB4/A4 P6.5/CB5/A5 P6.6/CB6/A6 P6.7/CB7/A7 P7.0/CB8/A12 P7.1/CB9/A13 P7.
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1 2 HEADER 2 J71 VCC_Battery 1 1 2 VCC_1.8V 2 1 2 R113 0R0 R112 0R0 JUMPER J51 VCC_Battery D5 RED C77 10u JUMPER J50 50Ohm @ 100MHz 1 2 R76 330 1 2 1 MSP_EN_Adj C56 4.7uF P1 1.8V_DIG C41 4.7uF 1 1 1 1 2 8 10 NC EN2 EN1 IN L8 2 50Ohm @ 100MHz C65 4.7uF C66 1uF C51 1uF C69 4.7uF L9 2 50Ohm @ 100MHz C44 4.7uF R109 10k L6 2 50Ohm @ 100MHz C50 4.7uF JUMPER J52 P3 1.8V_ANA 2 100nF C57 U5 GND T-PAD 5 11 C68 0.1uF C54 0.
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Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.