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CDCE72010RGCR 데이터시트(PDF) 3 Page - Texas Instruments |
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CDCE72010RGCR 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 73 page PACKAGE 49 1 32 64 33 48 16 17 TopView BottomView CDCE72010 www.ti.com.............................................................................................................................................................. SCAS858A – JUNE 2008 – REVISED JULY 2009 The CDCE72010 is available in a 64-pin lead-free “green” plastic quad flatpack package with enhanced bottom thermal pad for heat dissipation. The Texas Instruments package designator is RGC (S-PQFP-N64). TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. 5,8,11,14,19 22,25,28,31 3.3V supply for the output buffers. There is no internal connection between VCC and AVCC. VCC Power 34,37,40, and It is recommended that each VCC uses its own supply filter. 43 VCC_PLL 4, 63 A. Power 3.3V PLL supply voltage for the PLL circuitry. VCC_IN 57, 60 A. Power 3.3V reference input buffers and circuitry supply voltage. VCC_VCXO 51, 54 A. Power 3.3V VCXO input buffer and circuitry supply voltage. GND 32 Ground Ground connected to thermal pad internally. GND PAD Ground Ground on thermal pad. See layout recommendations. VCCA 48, 49 A. Power 3.3V for internal analog circuitry power supply A. GND_CP 2 Analog ground for charge pump Ground Charge pump power supply pin used to have the same supply as the external VCO/VCXO. VCC_CP 64 A. Power It can be set from 2.3V to 3.6V. In SPI mode it is an open drain output and it functions as a master and in slave out as a SPI_MISO 15 DO serial control data output from the CDCE72010. LVCMOS input, control latch enable for the Serial Programmable Interface (SPI), with SPI_LE 45 I hysteresis in SPI mode. or CD1 In configuration default mode this pin becomes CD1. SPI_CLK LVCMOS input, serial control clock input for the SPI bus interface, with hysteresis. In 46 I or CD2 configuration default mode this pin becomes CD2. LVCMOS input, master out slave in as a serial control data input to CDCE72010 for the SPI SPI_MOSI 44 I bus interface. In configuration default mode this pin becomes CD3 and it should be tied to or CD3 GND. SPI MODE = H; when driven high or left unconnected, it defaults to SPI bus interface mode. CD MODE = L; If tied low the device goes into configuration default mode which is MODE_SEL 16 I configured by CD1, CD2, CD3, and AUX_SEL (CTRL_LE, CTRL_CLK, and CTRL_MOSI). In configuration default mode the device loads various configuration defaults from the EEPROM into memory at start-up. Copyright © 2008–2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): CDCE72010 |
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