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LMK00338RTAR Datasheet(PDF) 3 Page - Texas Instruments |
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LMK00338RTAR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 33 page CLKoutA0 VCCOA CLKoutB3 CLKoutB1* CLKoutB1 CLKoutB0* CLKoutA0* VCCOA CLKoutA1 CLKoutA1* CLKoutA2 CLKoutA2* CLKoutA3 CLKoutA3* CLKoutB3* CLKoutB2* CLKoutB2 VCCOB VCCOB CLKoutB0 39 40 38 37 36 35 34 33 32 31 10 9 8 7 6 5 4 3 2 1 12 11 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DAP Top Down View LMK00338 www.ti.com SNAS636A – DECEMBER 2013 – REVISED OCTOBER 2014 5 Pin Configuration and Functions 40-Pin RTA0040A Package Top View Pin Functions(1) PIN TYPE DESCRIPTION NUMBER NAME DAP DAP GND Die Attach Pad. Connect to the PCB ground plane for heat dissipation. 1, 2 CLKoutA0, CLKoutA0* O Differential clock output A0. Power supply for Bank A Output buffers. VCCOA can operate from 3.3 V or 2.5 3, 6 VCCOA PWR V. The VCCOA pins are internally tied together. Bypass with a 0.1 uF low-ESR capacitor placed very close to each Vcco pin. (2) 4, 5 CLKoutA1, CLKoutA1* O Differential clock output A1. 7, 8 CLKoutA2, CLKoutA2* O Differential clock output A2. 9, 10 CLKoutA3, CLKoutA3* O Differential clock output A3. 11 CLKoutA_EN I Bank A low active output buffer enable(3) Power supply for Core and Input buffer blocks. The Vcc supply operates from 12, 32, 35, Vcc PWR 3.3 V. Bypass with a 0.1 uF low-ESR capacitor placed very close to each Vcc 39 pin. Input for crystal. Can also be driven by a XO, TCXO, or other external single- 13 OSCin I ended clock. Output for crystal. Leave OSCout floating if OSCin is driven by a single-ended 14 OSCout O clock. 15, 18 CLKin_SEL0, CLKin_SEL1 I Clock input selection pins (3) 16, 17 CLKin0, CLKin0* I Universal clock input 0 (differential/single-ended) 19 CLKoutB_EN I Bank B low active output buffer enable(3) (1) Any unused output pins should be left floating with minimum copper length (see note in Clock Outputs), or properly terminated if connected to a transmission line, or disabled/Hi-Z if possible. See Clock Outputs for output configuration or Termination and Use of Clock Drivers output interface and termination techniques. (2) The output supply voltages/pins (VCCOA, VCCOB, and VCCOC) will be referred to generally as VCCO when no distinction is needed, or when the output supply can be inferred by the output bank/type. (3) CMOS control input with internal pull-down resistor. Copyright © 2013–2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LMK00338 |
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