| 数据搜索系统,热门电子元器件搜索 |
|
AD9577BCPZ-R7 数据表(PDF) 17 Page - Analog Devices |
|
|
|||||||||||||||||||||||||||||
AD9577BCPZ-R7 数据表(HTML) 17 Page - Analog Devices |
|
17 / 44 page ![]() Data Sheet AD9577 Rev. A | Page 17 of 44 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS NOTES 1. THE EXPOSED PADDLE ON THIS PACKAGE IS AN ELECTRICAL CONNECTION AS WELL AS A THERMAL ENHANCEMENT. FOR THE DEVICE TO FUNCTION PROPERLY, THE PADDLE MUST BE ATTACHED TO GROUND (GND). IT IS RECOMMENDED THAT A MINIMUM OF NINE VIAS BE USED TO CONNECT THE PADDLE TO THE PRINTED CIRCUIT BOARD (PCB) GROUND PLANE. PIN 1 INDICATOR 1 VSCA 2 VSI2C 3 REFOUT 4 VSREFOUT 5 VSX 6 REFCLK 7 XT2 8 XT1 9 REFSEL 10 VSCB 23 OUT3P 24 VSFB 25 VSM 26 SSCG 27 VSFA 28 OUT1N 29 OUT1P 30 VSOB1A 22 OUT3N 21 VSOB3B TOP VIEW (Not to Scale) AD9577 Figure 5. Pin Configuration Table 15. Pin Function Descriptions Pin No. Mnemonic Description 1 VSCA PLL1 Power Supply. 2 VSI2C I2C Digital Power Supply. 3 REFOUT CMOS Reference Output. 4 VSREFOUT Reference Output Buffer Power Supply. 5 VSX Crystal Oscillator and Input Reference Power Supply. 6 REFCLK Reference Clock Input. Tie low when not in use. 7, 8 XT2, XT1 External 19.44 MHz to 27 MHz Crystal. Leave unconnected when not in use. 9 REFSEL Logic Input. Use this pin to select the reference source. Internal 30 kΩ pull-up resistor. 10 VSCB PLL2 Analog Power Supply. 11 TST1B Test Pin. Connect this pin to Pin 13 (LDO). 12 TST2B Test Pin. Connect this pin to Pin 13 (LDO). 13 LDO This pin is for bypassing the PLL2 LDO to ground with a 220 nF capacitor. 14 VSVB PLL2 VCO Power Supply. 15, 16, 35, 36 GND Ground. 17 OUT2N LVPECL/LVDS/CMOS Clock Output. 18 OUT2P LVPECL/LVDS/CMOS Clock Output. 19 VSOB2B Output Port OUT2 Power Supply. 20 MARGIN Logic 1 sets the margining frequency on the clock output pins. Internal 30 kΩ pull-down resistor. 21 VSOB3B Output Port OUT3 Power Supply. 22 OUT3N LVPECL/LVDS/CMOS Clock Output. 23 OUT3P LVPECL/LVDS/CMOS Clock Output. 24 VSFB PLL2 Analog Power Supply. 25 VSM PLL2 Digital Power Supply. 26 SSCG Logic 1 enables spread spectrum operation of PLL2. Internal 30 kΩ pull-down resistor. 27 VSFA PLL1 Analog Power Supply. 28 OUT1N LVPECL/LVDS/CMOS Clock Output. 29 OUT1P LVPECL/LVDS/CMOS Clock Output. |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |