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CDCE62005 Datasheet(PDF) 4 Page - Texas Instruments |
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CDCE62005 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 85 page  2 3 4 5 6 7 1 13 14 15 16 28 27 26 25 17 18 19 31 30 29 43 42 41 40 39 38 37 8 9 10 20 21 22 34 33 32 46 45 44 11 12 36 35 48 47 23 24 PLL_LOCK REG_CAP2 VCC2_PLL EXT_LFP EXT_LFN VCC2_PLL AUX IN VCC_AUXIN PRI_REF+ PRI_REF- VCC_IN_PRI VBB AUX OUT SYNC VCC_AUXOUT U2P U2N VCC_OUT U1P U1N VCC_OUT SPI_MISO SPI_MOSI SPI_CLK CDCE62005 (Top View) CDCE62005 SCAS862F – NOVEMBER 2008 – REVISED JANUARY 2015 www.ti.com 5 Pin Configuration and Functions 48-Pin VQFN RGZ Package Top View Pin Functions(1) PIN TYPE DESCRIPTION NAME NUMBER VCC_OUT 8, 11, 18, 21, 3.3V Supply for the Output Buffers and Output Dividers Power 26, 29, 32 VCC_AUXOUT 15 Power 3.3V to Power the AUX_OUT circuitry VCC1_PLL 5 A. Power 3.3V PLL Supply Voltage for the PLL circuitry. (Filter Required) VCC2_PLL 39, 42 A. Power 3.3V PLL Supply Voltage for the PLL circuitry. (Filter Required) VCC_VCO 34, 35 A. Power 3.3V VCO Input Buffer and Circuitry Supply Voltage. (Filter Required) VCC_IN_PRI 47 A. Power 3.3V References Input Buffer and Circuitry Supply Voltage. VCC_IN_SEC 1 A. Power 3.3V References Input Buffer and Circuitry Supply Voltage. VCC_AUXIN 44 A. Power 3.3V Crystal Oscillator Input Circuitry. GND_VCO 36 Ground Ground that connects to VCO Ground. (VCO_GND is shorted to GND) GND PAD Ground Ground is on Thermal PAD. See Layout recommendation SPI_MISO 3-state LVCMOS Output that is enabled when SPI_LE is asserted low. It is the serial Data 22 O Output to the SPI bus interface SPI_LE LVCMOS input, control Latch Enable for Serial Programmable Interface (SPI), with Hysteresis in SPI Mode. The input has an internal 150-k Ω pull-up resistor if left 25 I unconnected it will default to logic level 1. The SPI_LE status also impacts whether the device loads the EEPROM into the device registers at power up. SPI_LE has to be logic 1 before the Power_Down pin toggles low-to-high in order for the EEPROM to load properly. (1) Note: The internal memory (EEPROM and RAM) are sourced from various power pins. All VCC connections must be powered for proper functionality of the device. 4 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: CDCE62005 |
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