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CDCE72010 Scheda tecnica(PDF) 29 Page - Texas Instruments |
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CDCE72010 Scheda tecnica(HTML) 29 Page - Texas Instruments |
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29 / 70 page ![]() CDCE72010 www.ti.com...................................................................................................................................................................................................... SCAS858 – JUNE 2008 Register 8: SPI Mode SPI RAM POWER UP BIT NAME RELATED BLOCK DESCRIPTION/FUNCTION BIT BIT CONDITION 0 A0 Address 0 0 1 A1 Address 1 0 2 A2 Address 2 0 3 A3 Address 3 1 4 0 VCXOBUFSELX VCXO and AUX Input Buffer Type Select (LVPECL,LVDS or LVCMOS) XY(10) LVPECL, (11) LVDS, (00) LVCMOS- Input is Positive Pin 5 1 VCXOBUFSELY VCXO and AUX 6 2 VCXOACDCSEL If Set to 0 AC Termination, If set to 1 DC Termination EEPROM Input Buffers 7 3 VCXOHYSTEN If Set to 1 Input Buffers Hysteresis enabled 8 4 VCXOTERMSEL If Set to 0 Input Buffer Internal Termination enabled 9 5 VCXOINVBB VCXO Input Buffer If Set to 1 It Biases VCXO Input negative pin with internal VCXOVBB Voltage EEPROM 10 6 PH8ADJC0 11 7 PH8ADJC1 12 8 PH8ADJC2 13 9 PH8ADJC3 Output 8 and 9 Coarse phase adjust select for Output Divider 8 EEPROM 14 10 PH8ADJC4 15 11 PH8ADJC5 16 12 PH8ADJC6 17 13 OUT8DIVRSEL0 18 14 OUT8DIVRSEL1 19 15 OUT8DIVRSEL2 Output Divider 8 ratio select 20 16 OUT8DIVRSEL3 Output 8 and 9 EEPROM (seeTable 7) 21 17 OUT8DIVRSEL4 22 18 OUT8DIVRSEL5 23 19 OUT8DIVRSEL6 When set to 0, the divider is disabled 24 20 EN89DIV Output 8 and 9 EEPROM When set to 1, the divider is enabled 25 21 PECL8HISWING Output 8 High Output Voltage Swing in LVPECL Mode if set to 1 EEPROM 26 22 CMOSMODE8PX LVCMOS mode select for OUTPUT 8 Positive Pin. Output 8 EEPROM (X,Y) = 00: Active, 10: Inverting, 11: Low, 01: 3-State 27 23 CMOSMODE8PY 28 24 CMOSMODE8NX LVCMOS mode select for OUTPUT 8 Negative Pin. Output 8 EEPROM (X,Y) = 00: Active, 10: Inverting, 11: Low, 01: 3-State 29 25 CMOSMODE8NY RAM BITS OUTPUT TYPE 30 26 OUTBUFSEL8X Output 8 22 23 24 25 26 27 EEPROM LVPECL 0 0 0 0 0 1 LVDS 0 1 0 1 1 1 31 27 OUTBUFSEL8Y Output 8 LVCMOS See Settings Above(1) 0 0 EEPROM All Outputs Disabled 0 1 0 1 1 0 (1) Use description for bits 22, 23, 24, and 25 for setting the LVCMOS outputs Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 29 Product Folder Link(s): CDCE72010 |
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