9FG830AGLFT

DATASHEET Eight Output Differential Frequency Generator for PCIe Gen3 and QPI General Description: The 9FG830 is a Frequency Timing Generator that provides 8 HCSL differential output pairs. These outputs support PCI-Express Gen3, and QPI applications. The part supports Spread Spectrum and synthesizes several additional output frequencies from either a 14.31818 MHz crystal, a 25 MHz crystal or reference input clock. The 9FG830 also outputs a copy of the reference clock. Complete control of the device is available via strapping pins or via the SMBus interface. 9 FG830 Features/Benefits: • • • • • Pin-to-Pin with 9FG108D; Easy upgrade to PCIe Gen3 Generates common frequencies from 14.318 MHz or 25 MHz; single part supports mulitple applications Provides copy of reference output; eleminates need for additional crystal or oscillator Three spread spectrum modes: -0.5%, +/-0.25%, and off; EMI reduction Unused outputs may be disabled in Hi-Z; save system power Device may be configured by SMBus and/or strap pins; can be used in systems without SMBus Recommended Application: 8 Output Differential Output Frequency Generator for PCIe Gen3 and QPI • Output Features: • • 8 - 0.7V current mode differential HCSL output pairs 1 - 3.3V LVTTL REF output Key Specifications: • • • • • Cycle-to-cycle jitter: < 50ps with 25MHz input Output-to-output skew: 200 mV IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 5 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI Electrical Characteristics - DIF 0.7V Current Mode Differential Outputs TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%, See Test Loads for loading conditions PARAMETER Slew rate Slew rate matching Voltage High Voltage Low Max Voltage Min Voltage Vswing Crossing Voltage (abs) Crossing Voltage (var) 1 SYMBOL Trf ∆Trf VHigh VLow Vmax Vmin Vswing Vcross_abs ∆-Vcross CONDITIONS Scope averaging on Slew rate matching, Scope averaging on Statistical measurement on single-ended signal using oscilloscope math function. (Scope averaging on) Measurement on single ended signal using absolute value. (Scope averaging off) Scope averaging off Scope averaging off Scope averaging off MIN 1 660 -150 -300 300 250 TYP MAX UNITS NOTES 4 20 850 mV 150 1150 mV mV mV mV 1 1 1 1, 2 1, 5 1, 6 V/ns % 1, 2, 3 1, 2, 4 1 550 140 Guaranteed by design and characterization, not 100% tested in production. IREF = VDD/(3xRR). For RR = 475 IOH = 6 x I REF and VOH = 0.7V @ ZO=50 (100 differential impedance). 2 3 (1%), IREF = 2.32mA. Measured from differential waveform Slew rate is measured through the Vswing voltage range centered around differential 0V. This results in a +/-150mV window around differential 0V. 4 Matching applies to rising edge rate of Clock / falling edge rate of Clock#. It is measured in a +/-75mV window centered on the average cross point where Clock rising meets Clock# falling. The median cross point is used to calculate the voltage thresholds the oscilloscope uses for the edge rate calculations. 5 Vcross is defined as voltage where Clock = Clock# measured on a component test board and only applies to the differential rising edge (i.e. Clock rising and Clock# falling). The total variation of all Vcross measurements in a particular system. This is a subset of V_cross_min/max (V_cross absolute) allowed. The intent is to limit Vcross induced modulation by setting V_cross_delta to be smaller than V_cross absolute. 6 Electrical Characteristics - Current Consumption TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%, See Test Loads for loading conditions PARAMETER SYMBOL IDD3.3 Operating Supply Current IDDA3.3OP IDD3.3 IDDA3.3OP IDD3.3DS IDDA3.3DS I DD3.3DZ IDDA3.3DZ CONDITIONS VDD, All outputs active @100MHz VDDA, All outputs active @100MHz VDD, All outputs active @400MHz VDDA, All outputs active @400MHz VDD, All DIF pairs stopped driven VDDA, All DIF pairs stopped driven VDD, All DIF pairs stopped Hi-Z VDDA, All DIF pairs stopped Hi-Z MIN TYP MAX 250 28 200 28 190 28 38 28 UNITS NOTES mA mA mA mA mA mA mA mA 1 1 1 1 1 1 1 1 DIF_STOP# Current 1 2 Guaranteed by design and characterization, not 100% tested in production. I REF = VDD/(3xRR). For RR = 475 (1%), I REF = 2.32mA. IOH = 6 x I REF and VOH = 0.7V @ ZO=50 . Electrical Characteristics - Output Duty Cycle, Jitter, and Skew Characterisitics TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%, See Test Loads for Loading Conditions PARAMETER Duty Cycle Skew, Output to Output Jitter, Cycle to cycle Jitter, Cycle to cycle 1 2 SYMBOL t DC t sk3 t jcyc-cyc t jcyc-cyc CONDITIONS Measured differentially, PLL Mode VT = 50% 25M input 14.318M input MIN 45 TYP MAX 55 50 50 60 UNITS NOTES % ps ps ps 1 1 1,3 1,3 Guaranteed by design and characterization, not 100% tested in production. I REF = VDD/(3xRR). For RR = 475 (1%), I REF = 2.32mA. IOH = 6 x I REF and VOH = 0.7V @ ZO=50 . 3 Measured from differential waveform IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 6 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI Electrical Characteristics - Phase Jitter Parameters TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%, See Test Loads for loading conditions PARAMETER SYMBOL t jphPCIeG1 t jphPCIeG2 CONDITIONS PCIe Gen 1 PCIe Gen 2 Lo Band 10kHz < f < 1.5MHz PCIe Gen 2 High Band 1.5MHz < f < Nyquist (50MHz) PCIe Gen 3 (PLL BW of 2-4MHz, CDR = 10MHz) QPI & SMI (100MHz or 133MHz, 4.8Gb/s, 6.4Gb/s 12UI) QPI & SMI (100MHz, 8.0Gb/s, 12UI) QPI & SMI (100MHz, 9.6Gb/s, 12UI) MIN TYP MAX 86 3 3.1 1 0.5 0.3 0.2 UNITS Notes ps (p-p) 1,2,3,6 ps 1,2,6 (rms) ps 1,2,6 (rms) ps 1,2,4,5, (rms) 6 ps 1,5,6 (rms) ps 1,5,6 (rms) ps 1,5,6 (rms) Phase Jitter, PCI Express t jphPCIeG3 Phase Jitter, QPI/SMI t jphQPI_SMI Guaranteed by design and characterization, not 100% tested in production. See http://www.pcisig.com for complete specs 3 Sample size of at least 100K cycles. This figures extrapolates to 108ps pk-pk @ 1M cycles for a BER of 1-12. 4 Subject to final radification by PCI SIG. 5 Calculated from Intel-supplied Clock Jitter Tool v 1.6.3 6 Applies to all differential outputs 2 1 Electrical Characteristics - REF-14.318/25 MHz TA = TCOM or TIND; Supply Voltage VDD = 3.3 V +/-5%; See Test Loads for Loads for loading conditions. PARAMETER SYMBOL CONDITIONS MIN TYP Long Accuracy ppm see Tperiod min-max values 0 Clock period Tperiod 14.318MHz output nominal 69.8413 25.000MHz output nominal 40 Clock period Tperiod Output High Voltage Output Low Voltage Output High Current Output Low Current Rise/Fall Time Duty Cycle Jitter 1 2 MAX UNITS ppm ns ns V V mA mA ns % ps Notes 1,2 1,2 1,2 1 1 1 1 1 1 1 V OH VOL I OH I OL t rf1 dt1 tjcyc-cyc I OH = -1 mA I OL = 1 mA VOH @MIN = 1.0 V, VOH@MAX = 3.135 V VOL @MIN = 1.95 V, V OL @MAX = 0.4 V V OL = 0.4 V, VOH = 2.4 V VT = 1.5 V VT = 1.5 V 2.4 -29 29 0.5 45 100 0.4 -23 27 2 55 250 Guaranteed by design and characterization, not 100% tested in production. All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is trimmed to 14.31818 or 25.00 MHz IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 7 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI SRC Reference Clock Common Recommendations for Differential Routing Dimension or Value L1 length, route as non-coupled 50ohm trace 0.5 max L2 length, route as non-coupled 50ohm trace 0.2 max L3 length, route as non-coupled 50ohm trace 0.2 max Rs 33 Rt 49.9 Down Device Differential Routing L4 length, route as coupled microstrip 100ohm differential trace 2 min to 16 max L4 length, route as coupled stripline 100ohm differential trace 1.8 min to 14.4 max Differential Routing to PCI Express Connector L4 length, route as coupled microstrip 100ohm differential trace 0.25 to 14 max L4 length, route as coupled stripline 100ohm differential trace 0.225 min to 12.6 max Unit inch inch inch ohm ohm Notes 1 1 1 1 1 inch inch 1 1 inch inch 2 2 Figure 1: Down Device Routing (Test Load) L1 Rs L2 L4 L4' L1' Rs HCSL Output Buffer L2' Rt Rt PCI Express Down Device REF_CLK Input L3' L3 Figure 2: PCI Express Connector Routing L1 Rs L2 L4 L4' L1' Rs HCSL Output Buffer L2' Rt Rt PCI Express Add-in Board REF_CLK Input L3' L3 IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 8 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI Alternative Vdiff Vp-p 0.45v 0.22v 0.58 0.28 0.80 0.40 0.60 0.3 R1a = R1b = R1 R2a = R2b = R2 Figure 3 Termination for LVDS and other Common Differential Signals (Figure 3) Vcm R1 R2 R3 R4 Note 1.08 33 150 100 100 0.6 33 78.7 137 100 0.6 33 78.7 none 100 ICS874003i-02 input compatible 1.2 33 174 140 100 Standard LVDS L1 R1a L2 R3 L4 L4' R4 L1' R1b HCSL Output Buffer L2' R2a R2b Down Device REF_CLK Input L3' L3 Cable Connected AC Coupled Application (figure 4) Component Value Note R5a, R5b 8.2K 5% R6a, R6b 1K 5% Cc 0.1 µF Vcm 0.350 volts Figure 4 3.3 Volts R5a Cc L4 L4' Cc R6a R5b R6b PCIe Device REF_CLK Input Figure 5. REF Output Test Load Zo = 50 ohms 33 5pF 9FGxxx REF Output IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 9 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI Differential Clock Tolerances x1 - 25MHz Clock Periods - Differential Outputs with Spread Spectrum Disabled SSC OFF or SSC +/- Synthesis 0.25% Error Center (ppm) Spread 0 0 0 10 0 6 10 0 1 Clock Center Freq. MHz 1us Measurement Window 0.1s 0.1s 0.1s 1us 1 Clock +SSC + ppm 0 ppm Short- +c2c jitter Units Long-Term AbsPer Period Term Average Max Nominal Average Max Max 10.00000 10.00000 10.05000 ns 8.00000 8.00000 8.05000 ns 7.50000 7.50000 7.55000 ns 6.00000 6.00006 6.05006 ns 5.00000 5.00000 5.05000 ns 3.75000 3.75002 3.80002 ns 3.00000 3.00003 3.05003 ns 2.50000 2.50000 2.55000 ns -SSC - ppm -c2c jitter S hort-Term Long-Term AbsPer Average Average Min Min Min 9.95000 7.95000 7.45000 5.94994 4.95000 3.69998 2.94997 2.45000 10.00000 8.00000 7.50000 5.99994 5.00000 3.74998 2.99997 2.50000 Notes DIF 100.00 125.00 133.33 166.67 200.00 266.67 333.33 400.00 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1,2 Clock Periods - Differential Outputs with Spread Spectrum Enabled SSC ON -0.5% Down Spread 1 Clock Synthesis Error (ppm) Center Freq. MHz 1us Measurement Window 0.1s 0.1s 0.1s 1us 1 Clock +SSC + ppm 0 ppm Short- +c2c jitter Units Long-Term Period Term AbsPer Average Nominal Average Max Max Max 10.02506 10.02603 10.05103 10.10103 ns 8.02005 8.02020 8.04020 8.09020 ns 7.51880 7.51952 7.53827 7.58827 ns 6.01504 6.01510 6.03010 6.08010 ns 5.01253 5.01301 5.02551 5.07551 ns 3.75940 3.75903 3.76841 3.81841 ns 3.00752 3.00755 3.01505 3.06505 ns 2.50627 2.50651 2.51276 2.56276 ns -SSC - ppm -c2c jitter S hort-Term Long-Term AbsPer Average Average Min Min Min 9.94910 7.94990 7.44933 5.94998 4.94955 3.70039 2.94999 2.44978 9.99910 7.99990 7.49933 5.99998 4.99955 3.75039 2.99999 2.49978 10.02410 8.01990 7.51808 6.01498 5.01205 3.75977 3.00749 2.50603 Notes DIF 96 19 96 10 96 -98 10 96 99.75 124.69 133.00 166.25 199.50 266.00 332.50 399.00 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1 Guaranteed by design and characterization, not 100% tested in production. 2 All Long Term Accuracy specifications are guaranteed with the assumption that the REF output is tuned to the exact target XTAL frequency. IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 10 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI Differential Clock Tolerances x1 - 14.31818MHz Clock Periods - Differential Outputs with Spread Spectrum Disabled SSC OFF or SSC +/- Synthesis Error 0.25% (ppm) Center Spread 35 -114 35 -104 35 42 -104 35 1 Clock Center Freq. MHz 1us Measurement Window 0.1s 0.1s 0.1s 0 ppm Period Nominal 10.00000 8.00000 7.50000 6.00000 5.00000 3.75000 3.00000 2.50000 + ppm Long-Term Average Max 10.00035 7.99909 7.50026 5.99937 5.00018 3.75016 2.99969 2.50009 1us 1 Clock +SSC Short- +c2c jitter Units AbsPer Term Max Average Max 10.05035 ns 8.04909 ns 7.55026 ns 6.04937 ns 5.05018 ns 3.80016 ns 3.04969 ns 2.55009 ns -SSC - ppm -c2c jitter S hort-Term Long-Term AbsPer Average Average Min Min Min 9.94965 7.95091 7.44974 5.95062 4.94983 3.69984 2.95031 2.44991 9.99965 8.00091 7.49974 6.00062 4.99983 3.74984 3.00031 2.49991 Notes DIF 100.00 125.00 133.33 166.67 200.00 266.67 333.33 400.00 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1,2 Clock Periods - Differential Outputs with Spread Spectrum Enabled SSC ON -0.5% Down Spread 1 Clock Synthesis Error (ppm) Center Freq. MHz 1us Measurement Window 0.1s 0.1s 0.1s 1us 1 Clock +SSC + ppm Short- +c2c jitter Units 0 ppm Long-Term Term Period AbsPer Average Average Nominal Max Max Max 10.02506 10.02706 10.05206 10.10206 ns 8.02005 8.01925 8.03925 8.08925 ns 7.51880 7.52029 7.53904 7.58904 ns 6.01504 6.01510 6.03010 6.08010 ns 5.01253 5.01353 5.02603 5.07603 ns 3.75940 3.75887 3.76825 3.81825 ns 3.00752 3.00755 3.01505 3.06505 ns 2.50627 2.50676 2.51301 2.56301 ns -SSC - ppm -c2c jitter S hort-Term Long-Term AbsPer Average Average Min Min Min 9.94807 7.95085 7.44855 5.94998 4.94903 3.70055 2.94999 2.44952 9.99807 8.00085 7.49855 5.99998 4.99903 3.75055 2.99999 2.49952 10.02307 8.02085 7.51730 6.01498 5.01153 3.75992 3.00749 2.50577 Notes DIF 199 -100 199 10 199 -140 10 199 99.75 124.69 133.00 166.25 199.50 266.00 332.50 399.00 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1 2 Guaranteed by design and characterization, not 100% tested in production. A ll Long Term Accuracy specifications are guaranteed with the assumption that the REF output is tuned to the exact target XTAL frequency. IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 11 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI General SMBus serial interface information for the 9FG830 How to Write: • • • • • • • • Controller (host) sends a start bit. Controller (host) sends the write address DC (H) IDT clock will acknowledge Controller (host) sends the begining byte location = N IDT clock will acknowledge Controller (host) sends the data byte count = X IDT clock will acknowledge Controller (host) starts sending Byte N through Byte N + X -1 (see Note 2) • IDT clock will acknowledge each byte one at a time • Controller (host) sends a Stop bit How to Read: • • • • • • • • • • • • • • Controller (host) will send start bit. Controller (host) sends the write address DC (H) IDT clock will acknowledge Controller (host) sends the begining byte location = N IDT clock will acknowledge Controller (host) will send a separate start bit. Controller (host) sends the read address DD (H) IDT clock will acknowledge IDT clock will send the data byte count = X IDT clock sends Byte N + X -1 IDT clock sends Byte 0 through byte X (if X(H) was written to byte 8). Controller (host) will need to acknowledge each byte Controllor (host) will send a not acknowledge bit Controller (host) will send a stop bit Index Block Write Operation Controlle r (Host) starT bit T S lave Address DC(H ) WR W Rite Beginning Byte = N ACK Data Byte Count = X ACK Beginning Byte N ACK X Byte IDT (Sla ve /Re ce ive r) Index Block Read Operation Controlle r (Host) T starT bit S lave Address DC(H ) WR W Rite Beginning Byte = N ACK RT Repeat starT Slave Address DD(H ) RD ReaD ACK Data Byte Count = X ACK Beginning Byte N ACK X Byte IDT (Sla ve /Re ce ive r) ACK ACK Byte N + X - 1 ACK P stoP bit Byte N + X - 1 N P Not acknowledge stoP bit IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 12 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI SMBus Table: Device Control Register, READ/WRITE ADDRESS (DC/DD) Byte 0 Pin # Name Control Function Type 1 27 RW Bit 7 FS3 5 RW Bit 6 FS21 44 RW Bit 5 FS11 7 RW Bit 4 FS01 1 26 RW Bit 3 Spread Enable Bit 2 Bit 1 Bit 0 Enable Software Control of Frequency, Spread Enable (Spread Type always Software Control) DIF_STOP# drive mode Spread Type RW RW RW 0 1 See Frequency Selection Table. Off On Default Pin 27 Pin 5 Pin 44 Pin 7 Pin 26 0 0 0 Hardware Software S elect Select Driven Down Hi-Z Center Notes: 1. These bits reflect the state of the corresponding pins at power up, but may be written to if Byte 0, bit 2 is set to '1'. FS3 is the SEL14M_25M# pin. SMBus Table: Output Enable Register Byte 1 Pin # Name Control Function Type DIF_7 EN Output Enable RW Bit 7 DIF_6 EN Output Enable RW Bit 6 DIF_5 EN Output Enable RW Bit 5 DIF_4 EN Output Enable RW Bit 4 DIF_3 EN Output Enable RW Bit 3 DIF_2 EN Output Enable RW Bit 2 DIF_1 EN Output Enable RW Bit 1 DIF_0 EN Output Enable RW Bit 0 Byte 1 sets outputs active or inactive, not the conditons set by the OE Note: SMBus Table: Output Stop Mode Register Byte 2 Pin # Name Control Function DIF_7 STOP EN Free Run/ Stop Enable Bit 7 DIF_6 STOP EN Free Run/ Stop Enable Bit 6 DIF_5 STOP EN Free Run/ Stop Enable Bit 5 DIF_4 STOP EN Free Run/ Stop Enable Bit 4 DIF_3 STOP EN Free Run/ Stop Enable Bit 3 DIF_2 STOP EN Free Run/ Stop Enable Bit 2 DIF_1 STOP EN Free Run/ Stop Enable Bit 1 DIF_0 STOP EN Free Run/ Stop Enable Bit 0 0 Disable Disable Disable Disable Disable Disable Disable Disable inputs. 1 Enable Enable Enable Enable Enable Enable Enable Enable Default 1 1 1 1 1 1 1 1 Type RW RW RW RW RW RW RW RW 0 Free-run Free-run Free-run Free-run Free-run Free-run Free-run Free-run 1 Default Stop-able 0 Stop-able 0 Stop-able 0 Stop-able 0 Stop-able 0 Stop-able 0 Stop-able 0 Stop-able 0 IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 13 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI SMBus Table: Frequency Select Readback Register Byte 3 Pin # Name Control Function 1 SEL14M_25M# 27 State of pin 27 Bit 7 (FS3) 6 State of pin 6 Bit 6 FS21 1 44 State of pin 44 Bit 5 FS1 45 State of pin 45 Bit 4 FS01 26 State of pin 26 Bit 3 SPREAD1 Reserved Bit 2 Reserved Bit 1 Reserved Bit 0 Type R R R R R R R R 0 1 Default Pin 27 See Frequency Selection Table. Off On Reserved Reserved Reserved Pin 6 Pin 44 Pin 45 Pin 26 X X X Notes: 1. These bits reflect the state of the corresponding pins, regardless of whether software programming is enabled or not. SMBus Table: Vendor & Revision ID Register Byte 4 Pin # Name Control Function RID3 Bit 7 RID2 Bit 6 REVISION ID RID1 Bit 5 RID0 Bit 4 VID3 Bit 3 VID2 Bit 2 VENDOR ID VID1 Bit 1 VID0 Bit 0 SMBus Table: DEVICE ID Byte 5 Pin # Name DEVID7 Bit 7 DEVID6 Bit 6 DEVID5 Bit 5 DEVID4 Bit 4 DEVID3 Bit 3 DEVID2 Bit 2 DEVID1 Bit 1 DEVID0 Bit 0 SMBus Table: Byte Count Register Byte 6 Pin # Name BC7 Bit 7 BC6 Bit 6 BC5 Bit 5 BC4 Bit 4 BC3 Bit 3 BC2 Bit 2 BC1 Bit 1 BC0 Bit 0 Type R R R R R R R R 0 - 1 - Default X X X X 0 0 0 1 Control Function Device ID = 83 hex Type R R R R R R R R 0 1 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Default 1 0 0 0 0 0 1 1 Control Function Writing to this register will configure how many bytes will be read back, default is 07 = 7 bytes. Type RW RW RW RW RW RW RW RW 0 - 1 - Default 0 0 0 0 0 1 1 1 1680C—08/26/10 IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 14 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI SMBus Table: Reserved Register Byte 7 Pin # Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SMBus Table: Reserved Register Byte 8 Pin # Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Control Function Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Type 0 1 Default X X X X X X X X Control Function Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Type 0 1 Default X X X X X X X X SMBus Table: M/N Programming Enable Byte 9 Pin # Name Control Function PLL M/N Programming M/N_EN Bit 7 Enable Select Polarity of OE OE_Polarity Bit 6 inputs Enables/Disables REF REFOUT_En 5 Bit 5 Reserved Bit 4 Reserved Bit 3 Reserved Bit 2 Reserved Bit 1 Reserved Bit 0 SMBus Table: PLL Frequency Control Register Byte 10 Pin # Name Control Function PLL N Div8 N Divider Prog bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 PLL N Div9 PLL M Div5 PLL M Div4 PLL M Div3 PLL M Div2 PLL M Div1 PLL M Div0 M Divider Programming bit (5:0) N Divider Prog bit 9 Type RW RW RW 0 Disable OE# Disable 1 Enable OE Enable Default 0 1 1 0 0 0 0 0 Type RW RW RW RW RW RW RW RW 0 1 Default X X X X X X X X The decimal representation of M and N Divider in Byte 11 and 12 will configure the PLL VCO frequency. Default at power up = latch-in or Byte 0 Rom table. VCO Frequency = fXTAL x [NDiv(9:0)+8] / [MDiv(5:0)+2] IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 15 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI SMBus Table: PLL Frequency Control Register Byte 11 Pin # Name Control Function PLL N Div7 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 PLL N Div6 PLL N Div5 PLL N Div4 PLL N Div3 PLL N Div2 PLL N Div1 PLL N Div0 N Divider Programming Byte11 bit(7:0) and Byte10 bit(7:6) Type RW RW RW RW RW RW RW RW 0 1 The decimal representation of M and N Divider in Byte 11 and 12 will configure the PLL VCO frequency. Default at power up = latch-in or Byte 0 Rom table. VCO Frequency = fXTAL x [NDiv(9:0)+8] / [MDiv(5:0)+2] Default X X X X X X X X SMBus Table: PLL Spread Spectrum Control Register Byte 12 Pin # Name Control Function PLL SSP7 Bit 7 PLL SSP6 Bit 6 PLL SSP5 Bit 5 Spread Spectrum PLL SSP4 Bit 4 Programming bit(7:0) PLL SSP3 Bit 3 PLL SSP2 Bit 2 PLL SSP1 Bit 1 PLL SSP0 Bit 0 SMBus Table: PLL Spread Spectrum Control Register Byte 13 Pin # Name Control Function Reserved Bit 7 PLL SSP14 Bit 6 PLL SSP13 Bit 5 PLL SSP12 Bit 4 Spread Spectrum PLL SSP11 Bit 3 Programming bit(14:8) PLL SSP10 Bit 2 PLL SSP9 Bit 1 PLL SSP8 Bit 0 Type RW RW RW RW RW RW RW RW Default X X These Spread X Spectrum bits in X Byte 13 and 14 will X program the spread X pecentage of PLL X X 0 1 Type RW RW RW RW RW RW RW Default 0 X These Spread X Spectrum bits in X Byte 13 and 14 will X program the spread X pecentage of PLL X X 0 1 IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 16 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI SYMBOL A A1 b c D E E1 e h L N a VARIATIONS N 48 300 mil SSOP In Millimeters COMMON DIMENSIONS MIN MAX 2.41 2.80 0.20 0.40 0.20 0.34 0.13 0.25 SEE VARIATIONS 10.03 10.68 7.40 7.60 0.635 BASIC 0.38 0.64 0.50 1.02 SEE VARIATIONS 0° 8° In Inches COMMON DIMENSIONS MIN MAX .095 .110 .008 .016 .008 .0135 .005 .010 SEE VARIATIONS .395 .420 .291 .299 0.025 BASIC .015 .025 .020 .040 SEE VARIATIONS 0° 8° D mm. MIN 15.75 MAX 16.00 MIN .620 D (inch) MAX .630 Reference Doc.: JEDEC Publication 95, MO-118 10-0034 IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 17 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI N c E1 INDEX AREA E 12 α D A2 A1 A 6.10 mm. Body, 0.50 mm. Pitch TSSOP (240 mil) (20 mil) In Millimeters In Inches L SYMBOL COMMON DIMENSIONS COMMON DIMENSIONS MIN MAX MIN MAX A -1.20 -.047 A1 0.05 0.15 .002 .006 A2 0.80 1.05 .032 .041 b 0.17 0.27 .007 .011 c 0.09 0.20 .0035 .008 D SEE VARIATIONS SEE VARIATIONS E 8.10 BASIC 0.319 BASIC E1 6.00 6.20 .236 .244 e 0.50 BASIC 0.020 BASIC L 0.45 0.75 .018 .030 N SEE VARIATIONS SEE VARIATIONS α 0° 8° 0° 8° aaa -0.10 -.004 VARIATIONS - Ce b SEATING PLANE N 48 10-0039 D mm. MIN MAX 12.40 12.60 D (inch) MIN .488 MAX .496 Ref erence Doc.: JEDEC Publicat ion 95, M O-153 aaa C Ordering Information Part / Order Number 9FG830AFLF 9FG830AFLFT 9FG830AFILF 9FG830AFILFT 9FG830AGLF 9FG830AGLFT 9FG830AGILF 9FG830AGILFT Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Package 48-pin SSOP 48-pin SSOP 48-pin SSOP 48-pin SSOP 48-pin TSSOP 48-pin TSSOP 48-pin TSSOP 48-pin TSSOP Temperature 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C “LF” suffix to the part num ber are the Pb-Free configuration and are RoHS com pliant. “ A” is the device revision designator (w ill not correlate w ith the datasheet revision). IDT® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI 1680C—08/26/10 18 9FG830 Eight Output Differential Frequency Generator for PCIe Gen3 and QPI Revision History Rev. A B Originator 7/13/2010 7/20/2010 Issue Date Rev X.3 RDW Initial release. Move to final 1. Added PPM tables to DS for both 25M and 14.318M inputs 2. Added Test load figures RDW 1. Updated/reformatted Electrical Tables 2. Corrected Features/Benefits and General Description RDW 3. Updated termination figures to include Fig 5. for REF output Page # C 8/25/2010 1, Various Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 For Tech Support 408-284-6578 pcclockhelp@idt.com Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 (outside U.S.) Asia Pacific and Japan IDT Singapore Pte. Ltd. 1 Kallang Sector #07-01/06 KolamAyer Industrial Park Singapore 349276 Phone: 65-6-744-3356 Fax: 65-6-744-1764 Europe IDT Europe Limited 321 Kingston Road Leatherhead, Surrey KT22 7TU England Phone: 44-1372-363339 Fax: 44-1372-378851 © 2010 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, ICS, and the IDT logo are trademarks of Integrated Device Technology, Inc. A ccelerated T hinking is a service mark of Integrated Device Technology, Inc. A ll other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA 19