Datasheet AD8325 (Analog Devices) - 15

AD8325 VIN–0 VIN+0 HPF_0 TP21 DNI
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R20 0 AGND R21 DNI AGND CABLE_0 5 R10 DNI TP22 DNI CBL 10–18 6 2 1 TP20 DNI SEC R18 DNI 9 3 R19 DNI AGND T3 HPP COM AGND
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R9 0 4 3 PRI TOKO1 R22 DNI LPP CX6002 AGND 1 3 2 1 DNI SEC R17 DNI T4 ETC1 4 5 PRI R16 DNI
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R14 0
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R8 0 R15 0 TP23 TP24 R7 DNI DNI = DO NOT INSTALL
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R13 R6 0 51.1 AGND 6 2 1 AGND R11 DNI R12 DNI SEC F T1 F AGND
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C15 4 3 TOKO1 PRI C16 0.1 0.1 TP19 DNI 3 2 1 TP10 TP11 TP12 AGND SEC DNI T2 ETC1 4 5 PRI AGND F TB1
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F
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TP18 DNI C9 C7 0.1 0.1 CC F V CC
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DEVICE = 2LUGPWR V C11 0.1 F TP16 DNI TP9
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F C12 10
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F
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C8 0.1 C10 AGND 0.1 R4 DNI AGND TP13 DNI TP17 DNI PKG_TYPE = R1206 R5 DNI TP15 DNI 28 27 26 25 24 23 22 21 20 19 18 17 16 15 CC IN– IN+ CC CC CC TP14 DNI GND V V V GND V GND BYP V V GND GND GND OUT+ Z1 AGND TSSOP28 DATEN CC CC CC SDATA CLK GND V TXEN SLEEP GND V V GND GND GND OUT– 1 2 3 4 5 6 7 8 9 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 10 11 12 13 14 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 TP6 C5 1000pF C6 DNI C4 DNI
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R2 0 TP2 TP4 TP8
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R1 0
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R3 TP1 0 TP5 AGND TP3 TP7 F F F
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1 2 3 4 5 6 7 8 9 C1 C2 C3 10 11 12 13 14 15 16 17 18 0.1 0.1 0.1 AGND P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 P1 CLK DATEN SDATA TXEN SLEEP
Figure 12. Evaluation Board Schematic REV. A –15– Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS LOGIC INPUTS TIMING REQUIREMENTS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDERING GUIDE PIN FUNCTION DESCRIPTIONS Typical Performance Characteristics APPLICATIONS General Application Operational Description SPI Programming and Gain Adjustment Input Bias, Impedance, and Termination Output Bias, Impedance, and Termination Power Supply Decoupling, Grounding, and Layout Considerations Initial Power-Up Between Burst Operation Distortion, Adjacent Channel Power, and DOCSIS Noise and DOCSIS Evaluation Board Features and Operation Overshoot on PC Printer Ports Transformer and Diplexer Differential Inputs Single-Ended-to-Differential Input Differential Input Installing the Visual Basic Control Software Running the Software Controlling the Gain/Attenuation of the AD8325 Transmit Enable, Transmit Disable, and Sleep Memory Section EVALUATION BOARD FEATURES AND OPERATION EVALUATION BOARD BILL OF MATERIALS OUTLINE DIMENSIONS Revision History