Clock Generator
Schematic Diagrams
+3VS |
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| MainU28Clock Generator | Clock Outputs |
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| Damping Resistors |
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| Place near to the |
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| L84 FCM2012V121 |
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| CLK_VCC3 |
| CLOCK GEN (650) |
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1 | 2 |
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| 1 | VDDREF |
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| 11 |
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| 40 | 1 | 4 | 3 | |||||
C76 | C401 | C85 | C84 | C81 | C102 | C103 | C105 | C104 | 13 | VDDZ |
| CPUCLK0 | 39 |
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| 19 | VDDPCI |
| CPUCLK#0 |
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| 3 | |||
0.1UF | 10UF/10V | 0.1UF | 0.1UF 0.1UF | 0.1UF | 0.1UF | 0.1UF | 0.1UF | 28 | VDDPCI |
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| 44 | 1 | 4 | 5 |
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VDD48 |
| CPUCLK1 |
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| 29 |
| 43 | 2 | 3 |
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| 42 | VDDAGP |
| CPUCLK#1 |
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| 5 | |||
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| 48 | VDDCPU |
| SDCLK | 47 | R309 | 22 | SDCLK | SDCLK | 6 |
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| VDDSD |
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| R310 |
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| 12 | PCI_STOP# |
| AGPCLK0 | 31 | 22 | AGPCLK | AGPCLK | 5 |
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| 30 | R311 | 22 | AGPCLKATI |
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| 5 | VSSREF |
| AGPCLK1 |
| R334 | 22 |
| AGPCLKATI | 30 |
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| 9 | ZCLK0 | ZCLK0 | 9 |
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| +3VS | 18 | VSSZ |
| ZCLK0 | 10 | R335 | 22 | ZCLK1 |
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| 24 | VSSPCI |
| ZCLK1 |
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| ZCLK1 | 13 |
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| VSSPCI |
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| 14 | FS3 | R336 | 33 | PCICLK961 |
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| PCICLK961 | 13 | |||||||
| +3VS |
| +3VS |
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| R37 |
| 32 | VSS48 |
| PCICLK_F0/FS3 | 15 | FS4 | R337 | 33 | PCICLK1394 | |||
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| 41 | VSSAGP |
| PCICLK_F1/FS4 | 16 | R338 | 33 | PCICLKPCM | T |
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| 46 | VSSCPU |
| PCICLK0 | 17 | R339 | 33 | PCICLKLAN | PCICLKPCM | 19 | ||
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| 10K |
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| VSSSD |
| PCICLK1 | 20 | R340 | 33 | PCICLKIO | PCICLKLAN | 25 | ||
| R59 | R43 |
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| D10 |
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| PCICLK2 | 21 | R341 | 33 | PCICLKH8 | PCICLKIO | 22 | ||
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| PCICLK3 | 22 | R342 | 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 |
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VTT |
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| 1SS355 |
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| REF0/FS0 | 2 | FS0 | R331 | 33 | REFCLK0 | ||||
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| 3 | FS1 | R332 | 33 | REFCLK1 | REFCLK0 | 9 |
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R62 | C |
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| PD#/VTT_PWRGD | REF1/FS1 | 4 | FS2 | R333 | 33 | CLKAPIC | REFCLK1 | 15 |
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| B | B |
| Q19 |
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| R45 |
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| REF2/FS2 |
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| CLKAPIC | 15 |
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| 27 | R312 | 22 | UCLK48M | 48 MHZ |
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| E Q20 |
| 2N3904 |
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| IREF |
| 48M |
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10K | 2N3904 |
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| 475_1% |
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| 26 | MULTISEL | R313 | 22 | SIO48M | UCLK48M | 16 |
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| L21 |
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| 24_48M/MULTISEL | SIO48M | 22 |
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| +3VS | 1 |
| 2FCM1608K121 | 36 | VDDA |
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| C90 |
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| C83 | C82 |
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| SCLK | 35 | SMBCLK | SMBCLK | 7,15 |
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| 34 | SMBDAT |
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| 0.1UF |
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| 0.1UF | 0.01UF |
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| SDATA |
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| SMBDAT | 7,15 |
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| 37 | VSSA | XIN | XOUT |
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| +3VS |
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| ICS 952001 | 6 | 7 |
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| CY 28342 | Y5 |
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| 1 | 2 |
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| C77 |
| C78 |
| C86 |
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| 14.318MHz |
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| MULTISEL | R44 | 0(R) |
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| 10UF/10V | 0.01UF |
| 0.1UF |
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| C92 | C91 |
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| 10PF | 10PF |
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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 | RP75 | 3 | 2 | DDRCLK37 | |||||
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| FCM2012V121 |
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| 12 | 1 |
| 4 | 1 |
| DDRCLK#3 | ||||
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| VDD | CLK#0 |
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| DDRCLK#37 | |||||||
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| C523 | C532 | C550 | C557 | 23 |
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| C208 | C565 | C207 | VDD |
| 4 | RP76 | 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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| DDRCLK#0 | |||
| 10U(0805) | 0.01UF | 0.1UF |
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| CLK#1 |
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| DDRCLK2 | ||||||
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| 13 | RP77 | 2 | 3 |
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| +2.5VS L94 |
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| CLK2 | DDRCLK27 | |||||||
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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 |
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| CLK3 | 17 | RP62 | 1 | 4 | DDRCLK47 | |||||
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| C560 |
| C549 | C556 |
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| DDRCLK#4 | |||
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| CLK#3 |
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| DDRCLK#47 | ||||||||
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| DDRCLK1 | |||
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| 10U(0805) | 0.01UF | 0.1UF |
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| CLK4 | 24 | RP61 | 2 | 3 | DDRCLK17 | ||||
| Frequency |
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| DDRCLK#1 | ||||
+3VS |
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| CLK#4 |
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| DDRCLK#17 | |||||||
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| SMBCLK | 7 |
| 26 | RP60 | 2 | 3 | DDRCLK5 | ||||||||
| Selection |
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| SCLK | CLK#5 | DDRCLK#57 | |||||||||||
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| DDRCLK#5 | ||||||
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| SMBDAT |
| CLK5 |
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| DDRCLK57 | ||
R67 | 4.7K | FS0 |
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| 22 | SDATA |
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| R384 |
| 22 | FB_IN |
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R66 | 4.7K | FS1 |
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| FWDSDCLKO |
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| FB_OUT | 19 | FB_OUT |
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R65 | 4.7K(R) | FS2 |
| 6 FWDSDCLKO |
| 8 | CLK_IN |
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R61 | 4.7K(R) | FS3 |
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R60 | 4.7K(R) | FS4 |
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| FB_IN |
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| +2.5V |
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| FB_IN | GND |
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| GND | 15 |
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+3VS |
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| 9 |
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| C684 |
| T |
| 18 | NC | GND |
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| 0.1UF |
| T |
| NC |
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| FB_IN |
| C533 | 10PF(R) |
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| ICS 93722 |
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R283 | R296 |
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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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| H | L |
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| H | H |
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SDCLK | C75 |
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AGPCLK | C74 |
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AGPCLKATI | C688 | |
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ZCLK0 | C121 | |
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ZCLK1 | C120 | |
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PCICLK961 | C119 | |
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PCICLK1394 | C118 | |
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PCICLKPCM | C117 | |
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PCICLKLAN | C116 | |
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PCICLKIO | C115 | |
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PCICLKH8 | C114 | |
UCLK48M | C73 |
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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 41
Clock Generator
B.Schematic Diagrams
Clock Generator