Clock Generator
Schematic Diagrams
+3VS |
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| MainU21Clock Generator | Clock Outputs |
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| Damping Resistors |
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| Place near to the |
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| L30 FCM2012V121 |
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| CLK_VCC3 |
| CLOCK GEN (660) |
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1 | 2 |
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| 1 | VDDREF |
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| CPUCLK0 | 40 | 1 | 4 | 3 | |||||
C81 | C93 | C504 | C505 | C89 | C107 | C108 | C555 | C92 |
| 13 | VDDZ |
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| 2 | 3 | |||||
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| 19 | VDDPCI |
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| CPUCLK#0 |
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| 3 | |||
0.1UF |
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| 0.1UF |
| 0.1UF | 0.1UF | VDDPCI |
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10UF/10V | 0.1UF | 0.1UF | 0.1UF | 0.1UF | 28 |
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| CPUCLK1 | 44 | 1 | 4 | 5 |
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VDD48 |
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| 43 | 2 | 3 |
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| 42 | VDDAGP |
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| CPUCLK#1 |
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| 5 | |||
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| 48 | VDDCPU |
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| SDCLK | 47 | R411 | 22 | SDCLK | T |
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| VDDSD |
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| 12 | PCI_STOP# |
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| AGPCLK0 | 31 | R413 | 22 | AGPCLK | AGPCLK | 5 |
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| 30 | R414 | 22 | AGPCLKATI |
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| 5 | VSSREF |
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| AGPCLK1 |
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| AGPCLKATI 30 | ||
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| ZCLK0 | 9 | R451 | 22 | ZCLK0 | ZCLK0 | 9 |
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| +3VS | 18 | VSSZ |
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| 10 | R452 | 22 | ZCLK1 |
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| 24 | VSSPCI |
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| ZCLK1 |
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| ZCLK1 | 13 |
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| 25 | VSSPCI |
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| PCICLK_F0/FS3 | 14 | FS3 | R453 | 33 | PCICLK963 | PCICLK963 | 13 | |
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| 32 | VSS48 |
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| 15 | FS4 | R454 | 33 | PCICLK1394 | ||||
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| R92 |
| 41 | VSSAGP |
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| PCICLK_F1/FS4 | 16 | R455 | 33 | PCICLKPCM | T |
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| 46 | VSSCPU |
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| PCICLK0 | 17 | R456 | 33 | PCICLKLAN | PCICLKPCM | 19 | ||
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| 10K |
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| PCICLK1 | 20 | R457 | 33 | PCICLKIO | PCICLKLAN | 25 | ||
| R101 | R436 |
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| D16 |
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| PCICLK2 | 21 | R458 | 33 | PCICLKH8 | PCICLKIO | 22 | |||
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| PCICLK3 | 22 | R435 | 33 | PCLK_80P | PCICLKH8 | 24 | ||
| 10K | 10K | 15,29 CPUSTP# |
| C | A |
| 45 | CPU_STOP# |
| PCICLK4 | 23 | T |
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| PCLK_80P | 20 | |||||
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| PCICLK5 |
| FS0 |
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VTT |
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| 1SS355 |
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| REF0/FS0 | 2 | R448 | 33 | REFCLK0 | |||||
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| 3 | FS1 | R449 | 33 | REFCLK1 | REFCLK0 | 9 |
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R437 | C |
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| PD#/VTT_PWRGD |
| REF1/FS1 | 4 | FS2 | R450 | 33 | CLKAPIC | REFCLK1 | 15 |
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| B | B | Q36 |
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| R412 |
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| REF2/FS2 |
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| CLKAPIC | 15 |
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| R91 | 22 | UCLK48M | 48 MHZ |
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| E Q37 |
| E 2N3904 |
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| 38 | IREF |
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| 48M | 27 |
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10K | 2N3904 |
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| 475_1% |
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| 26 | MULTISEL | R415 | 22 | SIO48M | UCLK48M | 16 |
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| L29 |
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| 24_48M/MULTISEL | SIO48M | 22 |
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| 1 | 2FCM1608K121 |
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| +3VS |
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| VDDA |
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| C88 |
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| C90 | C91 |
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| SCLK | 35 | SMBCLK | SMBCLK | 7,15,25 |
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| 34 | SMBDAT |
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| 0.1UF |
| 0.1UF | 0.01UF |
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| SDATA |
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| SMBDAT | 7,15,25 |
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| 37 | VSSA | XIN |
| XOUT |
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| +3VS |
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| ICS 952011 | 6 |
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| CY 28342 |
| Y4 |
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| C84 |
| C83 |
| C82 |
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| 14.318MHz |
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| MULTISEL | R416 | 4.7K |
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| 10UF/10V | 0.01UF |
| 0.1UF |
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| C554 | C530 |
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| 5PF |
| 5PF |
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| +2.5VS |
| Clock Buffer (DDR) |
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CLOCK BUFFER (DDR48)
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| BUFFERVCC |
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| DDRCLK3 |
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| 3 | VDD | CLK0 | 2 | RP64 | 3 | 2 | DDRCLK37 | |||||
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| FCM2012V121 |
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| 12 | 1 |
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| DDRCLK#3 | ||||
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| VDD | CLK#0 |
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| DDRCLK#37 | |||||||
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| C215 | C708 | C737 | C210 | 23 |
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| C220 | C755 | C219 | VDD |
| 4 | RP65 | 4 | 1 | DDRCLK0 |
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| CLK1 | DDRCLK07 | |||||||||||
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| 10U(0805) | 0.1UF | 0.1UF | 0.1UF |
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| 10U(0805) | 0.01UF | 0.1UF |
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| CLK#1 |
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| DDRCLK#07 | |||||||||
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| DDRCLK2 | ||||||
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| 13 | RP66 | 2 | 3 |
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| CLK2 | DDRCLK27 | |||||||
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| +2.5VS L142 |
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| DDRCLK#2 | ||||
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| CLK#2 |
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| DDRCLK#27 | |||||||
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| 1 | 2 |
| BUF_2.5VS |
| 10 | AVDD |
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| DDRCLK4 | |||
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| FCM1608K121 |
| C736 | C750 |
| CLK3 | 17 | RP51 | 1 | 4 | DDRCLK47 | |||||
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| C753 |
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| DDRCLK#4 | |||||
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| CLK#3 |
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| DDRCLK1 | DDRCLK#47 | |
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| 10U(0805) | 0.01UF | 0.1UF |
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| CLK4 | 24 | RP50 | 2 | 3 | DDRCLK17 | ||||
| Frequency |
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| DDRCLK#1 | ||||
+3VS |
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| SMBCLK |
| 7 |
| CLK#4 | 26 | RP49 | 2 | 3 | DDRCLK5 | DDRCLK#17 | ||||
| Selection |
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| SCLK | CLK5 | DDRCLK57 | ||||||||||
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| SMBDAT |
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| DDRCLK#5 | |||||||
R462 | 4.7K | FS0 |
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| 22 | SDATA | CLK#5 |
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| DDRCLK#57 | ||
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| R523 |
| 22 | FB_IN |
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R463 | 4.7K(R) | FS1 |
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| FWDSDCLKO |
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| FB_OUT | 19 | FB_OUT |
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R464 | 4.7K(R) | FS2 | 6 FWDSDCLKO |
| 8 | CLK_IN |
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R465 | 4.7K(R) | FS3 |
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| NEAR DDR SODIMM | ||||||||
R466 | 4.7K(R) | FS4 |
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| FB_IN |
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| +2.5V |
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| GND | 15 |
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+3VS |
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| GND |
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| NC | GND |
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| C574 |
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| T |
| NC |
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| 0.1UF |
| T |
| NC |
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| FB_IN |
| C709 | 10PF(R) |
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| ICS 93722 |
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R347 | R346 |
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4.7K | 4.7K |
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| CY28352 |
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BSEL0 3
BSEL1 3
PLEASE PLACE IN COMP SIDE
AND NEAR TOGETHER
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| FS4 | FS3 | FS2 | FS1 | FS0 | CPU SDRAM ZCLK AGP PCI | ||||
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| L | L |
| 0 | 0 | 0 | 1 | 1 | 100M | 133M | 66M | 66M | 33M | |
| BSEL1 | BSEL0 | Function |
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| 0 | 0 | 0 | 0 | 1 | 100M | 100M | 66M | 66M | 33M | |
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| L | H |
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SDCLKC482
AGPCLK C483
AGPCLKATI C506
ZCLK0C600
ZCLK1 C601
PCICLK963 C602
PCICLK1394 C603
PCICLKPCM C122
PCICLKLAN C121
PCICLKIO C120
PCICLKH8 C119
UCLK48M C87
49.9_1% |
49.9_1% |
49.9_1% |
49.9_1% |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
10PF(R) |
Sheet 4 of 42
Clock Generator
B.Schematic Diagrams
Clock Generator