NB7V33M 1.8V / 2.5V, 10GHz ÷4 Clock Divider with CML Outputs Multi−Level Inputs w/ Internal Termination http://onsemi.com Description The NB7V33M is a differential B4 Clock divider with asynchronous reset. The differential Clock inputs incorporate internal 50 W termination resistors and will accept LVPECL, CML and LVDS logic levels. The NB7V33M produces a ÷4 output copy of an input Clock operating up to 10 GHz with minimal jitter. The Reset pin is asserted on the rising edge. Upon powerup, the internal flip*flops will attain a random state; the Reset allows for the synchronization of multiple NB7V33M’s in a system. The 16 mA differential CML output provides matching internal 50 W termination which guarantees 400 mV output swing when externally receiver terminated with 50 W to VCC. The NB7V33M is the B4 version of the NB7V32M (B2) and is offered in a low profile 3 mm x 3 mm 16−pin QFN package. The NB7V33M is a member of the GigaComm™ family of high performance clock products. Application notes, models, and support documentation are available at www.onsemi.com. Features • • • • • • • • • • Maximum Input Clock Frequency > 10 GHz, typical 260 ps Typical Propagation Delay 35 ps Typical Rise and Fall Times Differential CML Outputs, 400 mV Peak−to−Peak, Typical Operating Range: VCC = 1.71 V to 2.625 V with GND = 0 V Internal 50 W Input Termination Resistors Random Clock Jitter < 0.8 ps RMS QFN−16 Package, 3 mm x 3 mm −40ºC to +85°C Ambient Operating Temperature These are Pb−Free Devices MARKING DIAGRAM* 16 1 NB7V 33M ALYW G G 1 QFN16 MN SUFFIX CASE 485G A L Y W G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package (Note: Microdot may be in either location) *For additional marking information, refer to Application Note AND8002/D. R RESET VTCLK 50 W CLK CLK B4 50 W Q0 Q0 VTCLK VREFAC VCC GND Figure 1. Simplified Logic Diagram ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. © Semiconductor Components Industries, LLC, 2010 January, 2010 − Rev. 2 1 Publication Order Number: NB7V33M/D NB7V33M VCC R 16 15 Exposed Pad (EP) VCC VCC 14 13 VTCLK 1 12 VCC CLK 2 11 Q CLK 3 10 Q VTCLK 4 9 NB7V33M 5 6 Table 1. TRUTH TABLE 7 CLK CLK R Q Q x x H L H Z W L CLK ÷ 4 CLK ÷ 4 Z = Low to High Transition W = High to Low Transition X = Don’t Care VCC 8 VREFAC GND GND GND Figure 2. Pin Configuration (Top View) Table 2. PIN DESCRIPTION Pin Name I/O Description 1 VTCLK − 2 CLK LVPECL, CML, LVDS Input Non−inverted Differential CLK Input. Note 1. 3 CLK LVPECL, CML, LVDS Input Inverted Differential CLK Input. Note 1. 4 VTCLK − Internal 50 W Termination Pin for CLK 5 VREFAC − Internally Generated Output Voltage Reference for Capacitor−Coupled Inputs, Only 6 GND − Negative Supply Voltage 7 GND − Negative Supply Voltage 8 GND − Negative Supply Voltage 9 VCC − Positive Supply Voltage. Note 2. 10 Q CML Output Inverted Differential Output 11 Q CML Output Non−Inverted Differential Output 12 VCC − Positive Supply Voltage. Note 2. 13 VCC − Positive Supply Voltage. Note 2. 14 VCC − Positive Supply Voltage. Note 2. 15 R LVCMOS Input 16 VCC − Positive Supply Voltage. Note 2. − EP − The Exposed Pad (EP) on the QFN−16 package bottom is thermally connected to the die for improved heat transfer out of package. The exposed pad must be attached to a heat−sinking conduit. The pad is electrically connected to the die, and must be electrically and thermally connected to GND on the PC board. Internal 50 W Termination Pin for CLK Asynchronous Reset Input. Internal 75 kW pulldown to GND. 1. In the differential configuration when the input termination pins (VTCLK/VTCLK) are connected to a common termination voltage or left open, and if no signal is applied on CLK/CLK input, then the device will be susceptible to self−oscillation. Q/Q outputs have internal 50 W source termination resistors. 2. All VCC and GND pins must be externally connected to a power supply for proper operation. http://onsemi.com 2 NB7V33M Table 3. ATTRIBUTES Characteristics ESD Protection Value Human Body Model Machine Model > 4 kV > 200 V QFN16 Level 1 RPD − Reset Input Pulldown Resistor 75 kW Moisture Sensitivity (Note 3) Flammability Rating Oxygen Index: 28 to 34 UL 94 V−0 @ 0.125 in Transistor Count 190 Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test 3. For additional information, see Application Note AND8003/D. Table 4. MAXIMUM RATINGS Symbol Parameter Condition 1 Condition 2 Rating Unit VCC Positive Power Supply GND = 0 V 3.0 V VIN Positive Input Voltage GND = 0 V −0.5 to VCC +0.5 V VINPP Differential Input Voltage |D − D| 1.89 V IIN Input Current Through RT (50 W Resistor) $40 mA IOUT Output Current Through RT (50 W Resistor) $40 mA IVFREFAC VREFAC Sink/Source Current $1.5 mA TA Operating Temperature Range −40 to +85 °C Tstg Storage Temperature Range −65 to +150 °C qJA Thermal Resistance (Junction−to−Ambient) (Note 4) QFN−16 QFN−16 42 35 °C/W qJC Thermal Resistance (Junction−to−Case) (Note 4) QFN−16 4 °C/W Tsol Wave Solder Pb−Free 265 °C 0 lfpm 500 lfpm Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 4. JEDEC standard multilayer board − 2S2P (2 signal, 2 power) with 8 filled thermal vias under exposed pad. http://onsemi.com 3 NB7V33M Table 5. DC CHARACTERISTICS POSITIVE CML OUTPUT VCC = 1.71 V to 2.625 V; GND = 0 V; TA = −40°C to 85°C (Note 5) Symbol Characteristic Min Typ Max Unit 95 85 115 100 mA VCC – 30 2470 1770 VCC – 10 2490 1790 VCC 2500 1800 mV VCC – 650 1850 VCC – 600 1200 VCC – 550 1950 VCC – 500 1300 VCC – 450 2050 VCC – 400 1400 mV 1050 VCC − 100 mV POWER SUPPLY CURRENT ICC Power Supply Current (Inputs and Outputs Open) VCC = 2.5 V ± 5% VCC = 1.8 V ± 5% CML OUTPUTS VOH Output HIGH Voltage (Note 6) VOL Output LOW Voltage (Note 6) VCC = 2.5 V VCC = 1.8 V VCC = 2.5 V VCC = 1.8 V DIFFERENTIAL INPUTS DRIVEN SINGLE−ENDED (Note 7) (Figures 5 & 6) Vth Input Threshold Reference Voltage Range (Note 8) VIH Single−ended Input HIGH Voltage Vth + 100 VCC mV VIL Single−ended Input LOW Voltage GND Vth − 100 mV VISE Single−ended Input Voltage (VIH − VIL) 200 1200 mV VCC – 850 VCC – 750 VCC – 500 VCC – 450 VREFAC VREFAC Output Reference Voltage @100 mA for Capacitor− Coupled Inputs, Only VCC = 2.5 V VCC = 1.8 V mV DIFFERENTIAL INPUTS DRIVEN DIFFERENTIALLY (Figures 7 & 8) (Note 9) VIHD Differential Input HIGH Voltage 1100 VCC mV VILD Differential Input LOW Voltage GND VCC − 100 mV VID Differential Input Voltage (VIHD − VILD) 100 1200 mV VCMR Input Common Mode Range (Differential Configuration, Note 10) (Figure 9) 1050 VCC − 50 mV IIH Input HIGH Current (VTx/VTx Open) −150 150 mA IIL Input LOW Current (VTx/VTx Open) −150 150 mA CONTROL INPUT (Reset pin) VIH Input HIGH Voltage for Control Pin VCC − 200 VCC mV VIL Input LOW Voltage for Control Pin GND 200 mV IIH Input HIGH Current −150 150 mA IIL Input LOW Current −150 150 mA TERMINATION RESISTORS RTIN Internal Input Termination Resistor 45 50 55 W RTOUT Internal Output Termination Resistor 45 50 55 W NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. 5. Input and output parameters vary 1:1 with VCC. 6. CML outputs loaded with 50−W to VCC for proper operation. 7. Vth, VIH, VIL,, and VISE parameters must be complied with simultaneously. 8. Vth is applied to the complementary input when operating in single−ended mode. 9. VIHD, VILD, VID and VCMR parameters must be complied with simultaneously. 10. VCMR min varies 1:1 with GND, VCMR max varies 1:1 with VCC. The VCMR range is referenced to the most positive side of the differential input signal. http://onsemi.com 4 NB7V33M Table 6. AC CHARACTERISTICS VCC = 1.71 V to 2.625 V; GND = 0 V; TA = −40°C to 85°C (Note 11) Symbol Min Typ fMAX Maximum Input Clock Frequency Characteristic 10 11 GHz VOUTPP Output Voltage Amplitude (@ VINPPmin) fin ≤ 10 GHz (Note 12) (Figure 3) 260 400 mV tPLH, tPHL Propagation Delay to Differential Outputs, @ 1 GHz, measured at differential crosspoint 150 500 200 600 tPLH TC Propagation Delay Temperature Coefficient tskew Duty Cycle Skew (Note 13) Device − Device skew (tpdmax – tpdmin) tRR Reset Recovery (See Figure 16) 550 135 tPW Minimum Pulse Width R 500 200 tDC Output Clock Duty Cycle (Reference Duty Cycle = 50%) fin v 10 GHz 45 50 fN Phase Noise, fc = 1 GHz tŘfN CLK/CLK to Q, Q R to Q, Q Max Unit 350 700 50 ps Dfs/°C 20 50 10 kHz 100 kHz 1 MHz 10 MHz 20 MHz 40 MHz ps ps ps 55 % −144 −147 −152 −152 −152 −153 dBc Integrated Phase Jitter (Figure x) fc = 1 GHz, 12 kHz − 20 MHz Offset 35 fs tJITTER RJ – Output Random Jitter (Note 14) fin v 10.0 GHz 0.2 VINPP Input Voltage Swing (Differential Configuration) (Figure 11) (Note 15) 200 tr, tf Output Rise/Fall Times @ 1 GHz (20% − 80%), Q, Q 20 35 0.8 ps RMS 1200 mV 60 ps NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. 11. Measured using a 1 GHz, VINPPmin, 50% duty−cycle clock source. All output loading with external 50 W to VCC. Input edge rates 40 ps (20% − 80%). 12. Output voltage swing is a single−ended measurement operating in differential mode. 13. Duty cycle skew is defined only for differential operation when the delays are measured from cross−point of the inputs to the cross−point of the outputs. Duty cycle skew is measured between differential outputs using the deviations of the sum of Tpw− and Tpw+ @ 1 GHz. Skew is measured between outputs under identical transitions and conditions. 14. Additive RMS jitter with 50% duty cycle clock signal. 15. Input voltage swing is a single−ended measurement operating in differential mode. VOUTPP, OUTPUT VOLTAGE AMPLITUDE (mV) 500 450 400 350 300 250 200 0 2 4 6 8 10 fin, CLOCK INPUT FREQUENCY (GHz) Figure 3. Output Voltage Amplitude (VOUTPP) vs. Input Frequency (fin) at Ambient Temperature (Typical) http://onsemi.com 5 NB7V33M VTCLK VCC 50 W CLK I CLK 50 W VTCLK Figure 4. Input Structure VCC Vthmax CLK VIH VIHmax VILmax Vth VIH Vth VIL Vth VIL Vthmin CLK Vth Figure 6. Vth Diagram CLK CLK CLK CLK VIHD(MAX) VIHD VILD CLK VILD(MAX) VINPP = VIH(CLK) − VIL(CLK) CLK VIHD VID = VIHD − VILD Q VILD VOUTPP = VOH(Q) − VOL(Q) Q VIHD(MIN) GND VID = |VIHD(D) − VILD(D)| Figure 8. Differential Inputs Driven Differentially Figure 7. Differential Inputs Driven Differentially VCMR VILmin GND Figure 5. Differential Input Driven Single−Ended VCC VIHmin tPHL tPLH VILD(MIN) Figure 9. VCMR Diagram Figure 10. AC Reference Measurement http://onsemi.com 6 NB7V33M VCC VCC VCC ZO = 50 W LVPECL Driver Vth ZO = 50 W VCC ZO = 50 W CLK NB7V33M CLK 50 W VTCLK VTCLK VTCLK LVDS Driver VTCLK ZO = 50 W 50 W CLK 50 W 50 W CLK Vth = VCC − 2 V VEE NB7V33M GND GND GND Figure 11. LVPECL Interface Figure 12. LVDS Interface VCC VCC ZO = 50 W CML Driver VCC CLK NB7V33M 50 W VTCLK VTCLK ZO = 50 W VT = VT = VCC 50 W CLK GND GND Figure 13. Standard 50 W Load CML Interface VCC ZO = 50 W Differential Driver VCC VCC Vth CLK VTCLK VTCLK ZO = 50 W VCC ZO = 50 W NB7V33M 50 W Single−Ended Driver 50 W Vth VTCLK VTCLK CLK NB7V33M 50 W 50 W CLK Vth = VREFAC GND CLK Vth = VREFAC GND GND GND Figure 15. Capacitor−Coupled Single−Ended Interface (VTCLK/VTCLK Connected to VREFAC; VREFAC Bypassed to Ground with 0.1 mF Capacitor) Figure 14. Capacitor−Coupled Differential Interface (VTCLK/VTCLK Connected to VREFAC; VREFAC Bypassed to Ground with 0.1 mF Capacitor) http://onsemi.com 7 NB7V33M 50% 50% VOUTPP = VOH(Q) − VOL(Q) Q tPLH tPHL 50% 50% CLK tRR(MIN) R 50% Figure 16. AC Reference Measurement (Timing Diagram) VCC VCC (Receiver) 50 W 50 W 50 W 50 W 16 mA GND Figure 17. Typical CML Output Structure and Termination http://onsemi.com 8 VINPP = VIH(CLK) − VIL(CLK) NB7V33M VCC 50 W Z = 50 W DUT Driver Device 50 W Q D Receiver Device Z = 50 W Q D Figure 18. Typical Termination for CML Output Driver and Device Evaluation DEVICE ORDERING INFORMATION1 Package Shipping† NB7V33MMNG QFN−16 (Pb−Free) 123 Units / Rail NB7V33MMNHTBG QFN−16 (Pb−Free) 100 / Tape & Reel NB7V33MMNTXG QFN−16 (Pb−Free) 3000 / Tape & Reel Device †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. http://onsemi.com 9 NB7V33M PACKAGE DIMENSIONS 16 PIN QFN CASE 485G−01 ISSUE D D ÇÇÇ ÇÇÇ L1 DETAIL A PIN 1 LOCATION ALTERNATE TERMINAL CONSTRUCTIONS E ÉÉ ÉÉ EXPOSED Cu 0.15 C TOP VIEW 0.15 C DETAIL B 0.10 C NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 MM FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. 5. Lmax CONDITION CAN NOT VIOLATE 0.2 MM MINIMUM SPACING BETWEEN LEAD TIP AND FLAG L L A B ÉÉ ÉÉ ÇÇ A3 MOLD CMPD A1 DIM A A1 A3 b D D2 E E2 e K L L1 DETAIL B (A3) ALTERNATE CONSTRUCTIONS A 16 X SEATING PLANE 0.08 C SIDE VIEW 16X L A1 5 NOTE 5 8 4 16X 0.575 0.022 e EXPOSED PAD 3.25 0.128 0.30 0.012 EXPOSED PAD 9 E2 K 12 1 16 16X 1.50 0.059 3.25 0.128 e 13 b 0.10 C A B 0.05 C SOLDERING FOOTPRINT* C D2 DETAIL A MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 REF 0.18 0.30 3.00 BSC 1.65 1.85 3.00 BSC 1.65 1.85 0.50 BSC 0.18 TYP 0.30 0.50 0.00 0.15 BOTTOM VIEW 0.30 0.012 0.50 0.02 NOTE 3 SCALE 10:1 mm Ǔ ǒinches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. The products described herein (NB7V33M), may be covered by U.S. patents including 6,362,644. There may be other patents pending. GigaComm is a trademark of Semiconductor Component Industries, LLC (SCILLC). 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