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CDCVF857GQLR

CDCVF857GQLR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    JRBGA56

  • 描述:

    IC DRIVER CLCK LOOP 2.5V 56-BGA

  • 数据手册
  • 价格&库存
CDCVF857GQLR 数据手册
CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 2.5-V PHASE-LOCKED-LOOP CLOCK DRIVER FEATURES • • • • • • • • • • • • • • DESCRIPTION Spread-Spectrum Clock Compatible Operating Frequency: 60 MHz to 220 MHz Low Jitter (Cycle-Cycle): ±35 ps Low Static Phase Offset: ±50 ps Low Jitter (Period): ±30 ps 1-to-10 Differential Clock Distribution (SSTL2) Best in Class for VOX = VDD/2 ±0.1 V Operates From Dual 2.6-V or 2.5-V Supplies Available in a 40-Pin MLF Package, 48-Pin TSSOP Package, 56-Ball MicroStar Junior™ BGA Package Consumes < 100-µA Quiescent Current External Feedback Pins (FBIN, FBIN) Are Used to Synchronize the Outputs to the Input Clocks Meets/Exceeds JEDEC Standard (JESD82-1) For DDRI-200/266/333 Specification Meets/Exceeds Proposed DDRI-400 Specification (JESD82-1A) Enters Low-Power Mode When No CLK Input Signal Is Applied or PWRDWN Is Low The CDCVF857 is a high-performance, low-skew, low-jitter, zero-delay buffer that distributes a differential clock input pair (CLK, CLK) to 10 differential pairs of clock outputs (Y[0:9], Y[0:9]) and one differential pair of feedback clock outputs (FBOUT, FBOUT). The clock outputs are controlled by the clock inputs (CLK, CLK), the feedback clocks (FBIN, FBIN), and the analog power input (AVDD). When PWRDWN is high, the outputs switch in phase and frequency with CLK. When PWRDWN is low, all outputs are disabled to a high-impedance state (3-state) and the PLL is shut down (low-power mode). The device also enters this low-power mode when the input frequency falls below a suggested detection frequency that is below 20 MHz (typical 10 MHz). An input frequency detection circuit detects the low frequency condition and, after applying a >20-MHz input signal, this detection circuit turns the PLL on and enables the outputs. When AVDD is strapped low, the PLL is turned off and bypassed for test purposes. The CDCVF857 is also able to track spread spectrum clocking for reduced EMI. Because the CDCVF857 is based on PLL circuitry, it requires a stabilization time to achieve phase-lock of the PLL. This stabilization time is required following power up. The CDCVF857 is characterized for both commercial and industrial temperature ranges. APPLICATIONS • • DDR Memory Modules (DDR400/333/266/200) Zero-Delay Fan-Out Buffer A A AVAILABLE OPTIONS TA TSSOP (DGG) –40°C to 85°C CDCVF857DGG –40°C to 85°C (1) 40-Pin MLF 56-Ball BGA (1) CDCVF857RTB CDCVF857GQL CDCVF857RHA CDCVF857ZQL Maximum load recommended is 12 pf for 200 MHz. At 12-pf load, maximum TA allowed is 70°C. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. MicroStar Junior is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2003–2007, Texas Instruments Incorporated CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 FUNCTION TABLE (Select Functions) INPUTS OUTPUTS AVDD PWRDWN CLK CLK Y[0:9] Y[0:9] FBOUT FBOUT GND H L H L H L H Bypassed/off GND H H L H L H L Bypassed/off X L L H Z Z Z Z Off X L H L Z Z Z Z Off 2.5 V (nom) H L H L H L H On 2.5 V (nom) H H L H L H L On 2.5 V (nom) X VDDQ ±50 mA IO Continuous output current VO = 0 to VDDQ IDDC Continuous current to GND or VDDQ Tstg Storage temperature range (1) (2) (3) 0.5 V to 3.6 V –0.5 V to VDDQ + 0.5 V –0.5 V to VDDQ + 0.5 V ±50 mA ±100 mA –65°C to 150°C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. This value is limited to 3.6 V maximum. THERMAL CHARACTERISTICS RθJA for TSSOP (DGG) Package (1) (1) (2) RθJA for MLF (RHA/RTB) Package RθJA for BGA (GQL/ZQL) Package (2) Airflow Low K High K Airflow With 4 Thermal Vias Airflow High K 0 ft/min 89.1°C/W 70°C/W 0 ft/min 44.7°C/W 0 ft/min 132.2°C/W 150 ft/min 78.5°C/W 65.3°C/W 150 ft/min 150 ft/min 126.4°C/W The package thermal impedance is calculated in accordance with JESD 51. Connecting the NC-balls (C3, C4, D3, D4, G3, G4, H3, H4) to a ground plane improves the θJA to 114.8°C/W (0 airflow). Submit Documentation Feedback 5 CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 RECOMMENDED OPERATING CONDITIONS MIN VDDQ Supply voltage PC1600 – PC3200 AVDD VIL Low-level input voltage VIH High-level input voltage DC input signal voltage NOM MAX 2.3 2.7 VDDQ – 0.12 2.7 CLK, CLK, FBIN, FBIN VDDQ/2 – 0.18 PWRDWN –0.3 CLK, CLK, FBIN, FBIN VDDQ/2 + 0.18 PWRDWN (1) (2) 0.7 1.7 VDDQ + 0.3 –0.3 VDDQ + 0.3 DC CLK, FBIN 0.36 VDDQ + 0.6 AC CLK, FBIN 0.7 VDDQ + 0.6 VDDQ/2 – 0.2 VDDQ/2 + 0.2 UNIT V V V V VID Differential input signal voltage VIX Input differential pair cross voltage IOH High-level output current –12 IOL Low-level output current 12 mA SR Input slew rate 1 4 V/ns TA Operating free-air temperature –40 85 °C (1) (2) (3) (4) (3) (4) V V mA The unused inputs must be held high or low to prevent them from floating. The dc input signal voltage specifies the allowable dc execution of the differential input. The differential input signal voltage specifies the differential voltage |VTR – VCP| required for switching, where VTR is the true input level and VCP is the complementary input level. The differential cross-point voltage tracks variations of VCC and is the voltage at which the differential signals must cross. ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK TEST CONDITIONS Input voltage, all inputs VDDQ = min to max, IOH = –1 mA High-level output voltage VOL Low-level output voltage VOD Output voltage swing VOX Output differential cross-voltage (3) II Input current IOZ High-impedance-state output VDDQ = 2.7 V, VO = VDDQ or GND current IDDPD Power-down current on VDDQ CLK and CLK = 0 MHz; PWRDWN = + AVDD Low; Σ of IDD and AIDD AIDD Supply current on AVDD CI Input capacitance VDDQ = 2.3 V, IOH = –12 mA (3) 6 MAX UNIT –1.2 V V 1.7 VDDQ = min to max, IOL = 1 mA 0.1 VDDQ = 2.3 V, IOL = 12 mA 0.6 Differential outputs are terminated with 120 Ω, CL = 14 pF (see Figure 3) 1.1 VDDQ/2 – 0.1 VDDQ/2 VDDQ = 2.7 V, VI = 0 V to 2.7 V 20 V VDDQ/2 + 0.1 V ±10 µA ±10 µA 100 µA 6 8 fO = 200 MHz 8 10 2.5 3.5 fO = 170 MHz 120 140 fO = 200 MHz 125 150 Differential outputs fO = 170 MHz terminated with 120 Ω, CL fO = 200 MHz = 0 pF 220 270 230 280 Differential outputs fO = 170 MHz terminated with 120 Ω, CL fO = 200 MHz = 14 pF 280 330 300 350 VDDQ = 2.5 V, VI = VDDQ or GND 2 V VDDQ – 0.4 fO = 170 MHz Without load (1) (2) (1) VDDQ – 0.1 (2) Dynamic current on VDDQ TYP VDDQ = 2.3 V, II = –18 mA VOH IDD MIN mA pF mA All typical values are at nominal VDDQ. The differential output signal voltage specifies the differential voltage |VTR – VCP|, where VTR is the true output level and VCP is the complementary output level. The differential cross-point voltage tracks variations of VDDQ and is the voltage at which the differential signals must cross. Submit Documentation Feedback CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 ELECTRICAL CHARACTERISTICS (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT ∆C Part-to-part input capacitance variation VDDQ = 2.5 V, VI = VDDQ or GND 1 pF CI(∆) Input capacitance difference between CLK and CLK, FBIN, and FBIN VDDQ = 2.5 V, VI = VDDQ or GND 0.25 pF TIMING REQUIREMENTS over recommended ranges of supply voltage and operating free-air temperature PARAMETER fCLK MIN MAX Operating clock frequency 60 220 Application clock frequency 90 220 40% 60% Input clock duty cycle Stabilization time (PLL mode) (1) Stabilization time (bypass mode) (1) (2) (2) UNIT MHz 10 µs 30 ns The time required for the integrated PLL circuit to obtain phase lock of its feedback signal to its reference signal. For phase lock to be obtained, a fixed-frequency, fixed-phase reference signal must be present at CLK and VDD must be applied. Until phase lock is obtained, the specifications for propagation delay, skew, and jitter parameters given in the switching characteristics table are not applicable. This parameter does not apply for input modulation under SSC application. A recovery time is required when the device goes from power-down mode into bypass mode (AVDD at GND). SWITCHING CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) Low-to-high level propagation delay time Test mode/CLK to any output 3.5 tPHL (1) High-to-low level propagation delay time Test mode/CLK to any output 3.5 tPLH ns –65 65 133/167/200 MHz (PC2100/2700/3200) –30 30 100 MHz (PC1600) –50 50 133/167/200 MHz (PC2100/2700/3200) –35 35 –100 100 –75 75 Jitter (period), see Figure 7 tjit(cc) (2) Jitter (cycle-to-cycle), see Figure 4 tjit(hper) (2) Half-period jitter, see Figure 8 tslr(o) Output clock slew rate, see Figure 9 Load: 120 Ω, 14 pF t(φ) Static phase offset, see Figure 5 100/133/167/200 MHz tsk(o) Output skew, see Figure 6 Load: 120 Ω, 14 pF; 100/133/167/200 MHz 100 MHz (PC1600) 133/167/200 MHz (PC2100/2700/3200) UNIT ns 100 MHz (PC1600) tjit(per) (2) (1) (2) MAX ps ps ps 1 2 V/ns –50 50 ps 40 ps Refers to the transition of the noninverting output. This parameter is assured by design but cannot be 100% production tested. Submit Documentation Feedback 7 CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 PARAMETER MEASUREMENT INFORMATION VDD VYx R = 60 W R = 60 W VDD/2 VYx CDCVF857 GND S0229-01 Figure 1. IBIS Model Output Load VDD/2 C = 14 pF R = 10 W Z = 60 W –VDD/2 Scope Z = 50 W R = 50 W V(TT) Z = 60 W R = 10 W Z = 50 W C = 14 pF CDCVF857 –VDD/2 R = 50 W V(TT) –VDD/2 V(TT) = GND S0230-01 Figure 2. Output Load Test Circuit 8 Submit Documentation Feedback CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 PARAMETER MEASUREMENT INFORMATION (continued) VDD C = 14 pF Probe GND Z = 60 W C = 1 pF R = 120 W R = 1 MW V(TT) Z = 60 W C = 1 pF C = 14 pF CDCVF857 R = 1 MW V(TT) GND GND V(TT) = GND S0231-01 Figure 3. Output Load Test Circuit for Crossing Point Yx, FBOUT Yx, FBOUT tc(n) tc(n +1) tjit(cc) = tc(n) – tc(n+1) T0174-01 Figure 4. Cycle-to-Cycle Jitter CLK CLK FBIN FBIN t(f)n t(f)n+1 t(f) = S n=N t(f)n 1 N (N > 1000 Samples) T0175-01 Figure 5. Phase Offset Submit Documentation Feedback 9 CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 PARAMETER MEASUREMENT INFORMATION (continued) Yx Yx Yx, FBOUT Yx, FBOUT tsk(o) T0176-01 Figure 6. Output Skew Yx, FBOUT Yx, FBOUT tc(n) Yx, FBOUT Yx, FBOUT 1 f0 1 f0 tjit(per) = tc(n) – f0 = Average Input Frequency Measured at CLK/CLK T0177-01 Figure 7. Period Jitter Yx, FBOUT Yx, FBOUT t(hper_n) t(hper_n+1) 1 f0 n = Any Half Cycle tjit(hper) = t(hper_n) – 1 2´f0 f0 = Average Input Frequency Measured at CLK/CLK T0178-01 Figure 8. Half-Period Jitter 10 Submit Documentation Feedback CDCVF857 www.ti.com SCAS047F – MARCH 2003 – REVISED MAY 2007 PARAMETER MEASUREMENT INFORMATION (continued) VOH, VIH 80% Clock Inputs and Outputs 80% 20% 20% VOL, VIL tr tslr(I/O) = tf V80% – V20% tslf(I/O) = tr V80% – V20% tf T0179-01 Figure 9. Input and Output Slew Rates (2) Card Via Bead 0603 AVDD VDDQ 4.7 mF 1206 0.1 mF 0603 GND Card Via (1) 2200 pF 0603 PLL AGND S0232-01 (1) Place the 2200-pF capacitor close to the PLL. (2) Recommended bead: Fair-Rite P/N 2506036017Y0 or equilvalent (0.8 Ω dc maximum, 600 Ω at 100 MHz). NOTE: Use a wide trace for the PLL analog power and ground. Connect PLL and capacitors to AGND trace and connect trace to one GND via (farthest from the PLL). Figure 10. Recommended AVDD Filtering Submit Documentation Feedback 11 PACKAGE OPTION ADDENDUM www.ti.com 9-Sep-2014 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) CDCVF857DGG ACTIVE TSSOP DGG 48 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CDCVF857 CDCVF857DGGG4 ACTIVE TSSOP DGG 48 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CDCVF857 CDCVF857DGGR ACTIVE TSSOP DGG 48 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CDCVF857 CDCVF857DGGRG4 ACTIVE TSSOP DGG 48 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CDCVF857 CDCVF857GQLR ACTIVE BGA MICROSTAR JUNIOR GQL 56 1000 TBD SNPB Level-2A-220C-4 WKS -40 to 85 CDCVF857 CDCVF857RHAR ACTIVE VQFN RHA 40 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 CKVF857 CDCVF857RHARG4 ACTIVE VQFN RHA 40 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 CKVF857 CDCVF857RHAT ACTIVE VQFN RHA 40 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 CKVF857 CDCVF857RHATG4 ACTIVE VQFN RHA 40 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 CKVF857 CDCVF857RTBR OBSOLETE VQFN RTB 40 TBD Call TI Call TI -40 to 85 CKVF857 CDCVF857RTBT OBSOLETE VQFN RTB 40 CDCVF857ZQLR ACTIVE BGA MICROSTAR JUNIOR ZQL 56 1000 TBD Call TI Call TI -40 to 85 CKVF857 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM -40 to 85 CDCVF857 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 9-Sep-2014 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 31-May-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant CDCVF857DGGR TSSOP DGG 48 2000 330.0 24.4 8.6 15.8 1.8 12.0 24.0 Q1 CDCVF857RHAR VQFN RHA 40 2500 330.0 16.4 6.3 6.3 1.1 12.0 16.0 Q2 CDCVF857RHAT VQFN RHA 40 250 180.0 16.4 6.3 6.3 1.1 12.0 16.0 Q2 ZQL 56 1000 330.0 16.4 4.8 7.3 1.5 8.0 16.0 Q1 CDCVF857ZQLR BGA MI CROSTA R JUNI OR Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 31-May-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) CDCVF857DGGR TSSOP DGG 48 2000 367.0 367.0 45.0 CDCVF857RHAR VQFN RHA 40 2500 367.0 367.0 38.0 CDCVF857RHAT VQFN RHA 40 250 210.0 185.0 35.0 CDCVF857ZQLR BGA MICROSTAR JUNIOR ZQL 56 1000 336.6 336.6 28.6 Pack Materials-Page 2 MECHANICAL DATA MTSS003D – JANUARY 1995 – REVISED JANUARY 1998 DGG (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0,27 0,17 0,50 48 0,08 M 25 6,20 6,00 8,30 7,90 0,15 NOM Gage Plane 1 0,25 24 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 48 56 64 A MAX 12,60 14,10 17,10 A MIN 12,40 13,90 16,90 DIM 4040078 / F 12/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. 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