932SQ428AKLF Renesas

DATASHEET PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 932SQ428 General Description Features/Benefits The 932SQ428 is a main clock synthesizer for 0.5% down spread capable on SRC/PCI outputs Lower Romley-generation Intel based server platforms. The EMI 932SQ428 is driven with a 25 MHz crystal for maximum 48-pin MLF package Space Savings performance. It generates CPU outputs of 100MHz. Key Specifications Recommended Application Cycle to cycle jitter: SRC/NS SAS < 50ps CK420BQ Phase jitter: PCIe Gen2 <3ps rms Phase jitter: PCIe Gen3 <1ps rms Output Features Phase jitter: QPI 9.6GB/s <0.2ps rms 2 - HCSL Non-Spread SAS outputs Phase jitter: NS-SAS <0.4ps rms using raw phase data 3 - HCSL SRC outputs - can be used as CPU 100M Phase jitter: NS-SAS <1.3ps rms using Clk Jit Tool 1.6.3 1 - HCSL DOT96 output 1 - 3.3V 48M output 5 - 3.3V PCI outputs 1 - 3.3V 14.318M output Block Diagram IDT PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 1 932SQ428 REV E 042312932SQ428 PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS Pin Configuration 48 47 46 45 44 43 42 41 40 39 38 37 VDDXTAL 1 36 GNDNS GNDPCI 2 35 AVDDNS PCI4 2x334 NS S AS1T PCI3 2x433 NS S AS1C PCI2 2x532 GNDNS PCI1 2x631 VDDNS 932SQ428 PCI0 2x730 NS S AS0T VDDPCI829 NS S AS0C 928 VDD4 8 IRE F 48M 2x 10 27 GNDSRC GND4 8 11 26 AVDDSRC 12 25 GND9 6 VDDS RC 13 14 15 16 17 18 19 20 21 22 23 24 48-Pin MLF (6x6mm 0.4mm pitch) Pins with prefix have internal 120K pullup Pins with v prefix have internal 120K pulldown 932SQ428 Functionality SRC PCI REF NS SAS DOT96 USB Unit 100 33.33 14.318 100.00 96.00 48.00 MHz Spread Spectrum Control 932SQ428 Power Down Functionality Differential Single-ended Single ended SS Enable CKPWRGD /PD SRC & PCI Outputs Outputs Outputs w/Latch (B1b0) 1 2 1HI-Z Low Low 0OFF 0 Running 1ON 1. Hi-Z on the differential outputs will result in both True and Complement being low due to the termination network 2. These outputs are Hi-Z after VDD is applied and before the first Power Group Table assertion of CKPWRGD . MLF Description VDD GND 14MHz PLL Analog 42 41 REF14M Output and Logic 43 45 25MHz XTAL 146 PCI Outputs and Logic 82 911 48MHz Output and Logic 96MHz PLL Analog, Output and Logic 15 12 17, 25 20 SRC Outputs and Logic SRC PLL Analog 26 27 31 32 Non-Spreading Differential Outputs & Logic 35 36 NS-SAS PLL Analog 37 38 Core Logic IDT PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 2 932SQ428 REV E 042312 DO T9 6T X2 25 DOT 96 C X1 2 5 VDD96 GNDXTAL CKPWRGD /PD GND1 4 VDDSRC REF1 4 3 x SRC0 T VDD14 SRC0 C AV DD14 GNDSRC GND1 4 SRCC1 SMBCLK SRCT1 SM BDATA SRCC2 GND SRCT 2 VDD