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932S421BGLFT Scheda tecnica(PDF) 1 Page - Integrated Device Technology |
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932S421BGLFT Scheda tecnica(HTML) 1 Page - Integrated Device Technology |
1 / 23 page ICS932S421B IDTTM PCIe Gen2 and QPI Clock for Intel-Based Servers 1340G—01/26/10 PCIe Gen2 and QPI Clock for Intel-Based Servers 1 DATASHEET Pin Configuration Recommended Application: PCIe Gen 2 & QPI compliant CK410B+ clock for Intel-based servers Output Features: • 4 - 0.7V current-mode differential CPU pairs • 5 - 0.7V current-mode differential SRC pair • 4 - PCI (33MHz) • 3 - PCICLK_F, (33MHz) free-running • 1 - 48MHz • 2 - REF, 14.318MHz Features/Benefits: • Supports spread spectrum modulation, 0 to -0.5% down spread • Uses external 14.318MHz crystal and external load capacitors for low ppm synthesis error • CPU clocks independent of SRC/PCI clocks • D2/D3 SMBus address Key Specifications: • PCIe Gen 2 compliant SRC outputs • QPI & FBD 2 compliant CPU clocks • CPU cycle-cycle jitter: < 50ps • SRC cycle-cycle jitter: < 125ps • PCI cycle-cycle jitter: < 500ps • CPU output skew: < 50ps • SRC output skew: < 250ps • ± 100ppm frequency accuracy on all outputs Functionality FS_C 1 FS_B 1 FS_A 2 CPU MHz SRC MHz PCI MHz REF MHz USB MHz 0 0 0 266.67 0 0 1 133.33 0 1 0 200.00 0 1 1 166.67 1 0 0 333.33 1 0 1 100.00 1 1 0 400.00 11 1 1. FS_B and FS_C are three-level inputs. Please see V IL_FS and VIH_FS specifications in the Input/Supply/Common Output Parameters Table for correct values. Also refer to the Test Clarification Table. 2. FS_A is a low-threshold input. Please see the V IL_FS and VIH_FS specifications in the Input/Supply/Common Output Parameters Table for correct values. Reserved 100.00 33.33 14.32 48.00 56-pin SSOP & TSSOP VDDPCI 1 56 FS_C/TEST_SEL GNDPCI 2 55 REF0 PCICLK0 3 54 REF1 PCICLK1 4 53 VDDREF PCICLK2 5 52 X1 PCICLK3 6 51 X2 GNDPCI 7 50 GNDREF VDDPCI 8 49 FS_B/TEST_MODE PCICLK_F0 9 48 FS_A PCICLK_F1 10 47 VDDCPU PCICLK_F2 11 46 CPUCLKT0 VDD48 12 45 CPUCLKC0 48MHz 13 44 VDDCPU GND48 14 43 CPUCLKT1 VDDSRC 15 42 CPUCLKC1 SRCCLKT0 16 41 GNDCPU SRCCLKC0 17 40 CPUCLKT2 SRCCLKC1 18 39 CPUCLKC2 SRCCLKT1 19 38 VDDCPU GNDSRC 20 37 CPUCLKT3 SRCCLKT2 21 36 CPUCLKC3 SRCCLKC2 22 35 VDDA SRCCLKC3 23 34 GNDA SRCCLKT3 24 33 IREF VDDSRC 25 32 NC SRCCLKT4 26 31 Vtt_PwrGd#/PD SRCCLKC4 27 30 SDATA VDDSRC 28 29 SCLK |
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