HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY HIGH SPEED LOGIC - SMT 3 Typical Applications Features The HMC749LC3C is ideal for: Supports Clock Frequencies up to 26 GHz • Serial Data Transmission up to 26 Gbps Differential & Single-Ended Operation • High Speed Frequency Divider (up to 26 GHz) Fast Rise and Fall Times: 18 / 17 ps • Broadband Test & Measurement Low Power Consumption: 270 mW typ. • RF ATE Applications Programmable Differential Output Voltage Swing: 600 - 1100 mV Propagation Delay: 95 ps Single Supply: 3.3 V 16 Lead Ceramic 3x3 mm SMT Package: 9 mm2 Functional Diagram General Description The HMC749LC3C is a T Flip-Flop w/Reset designed to support clock frequencies as high as 26 GHz. During normal operation, with the reset pin not asserted, the output toggles from its prior state on the positive edge of the clock. This results in a divide-bytwo function of the clock input. Asserting the reset pin forces the Q output low regardless of the clock edge state (asynchronous reset assertion). Reversing the clock inputs allows for negative-edge triggered applications. All differential inputs to the HMC749LC3C are CML and terminated on-chip with 50 Ohms to the positive supply, Vcc, and may be AC or DC coupled. The differential CML outputs are source terminated to 50 Ohms and may also be AC or DC coupled. Outputs can be connected directly to a 50 Ohm Vcc-terminated system, while DC blocking capacitors may be used if the terminating system is 50 Ohms to ground. The HMC749LC3C also features an output level control pin, VR, which allows for loss compensation or signal-level optimazation. the HMC749LC3C operates from a single 3.3 V supply and is available in ROHS-compliant 3x3 mm SMT package. Electrical Specifications, TA = +25 ºC, Vcc = Parameter Power Supply Voltage Min. Typ. Max 3 3.3 3.6 Units V Power Supply Current 82 mA Maximum Clock Rate 26 GHz Input Voltage Range Input Differential Range 3-1 Conditions 3.3 V, VR = 3.3 V Vcc - 1.5 Vcc + 0.5 V 0.1 2 Vp-p For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Electrical Specifications (continued) Conditions Min. Typ. Frequency <13 GHz Output Amplitude Single-Ended, peak-to-peak 550 mVp-p Differential, peak-to-peak 1100 mVp-p 3.29 V Output Low Voltage Output Return Loss 2.74 V Differential, 20% - 80% 18 / 17 ps Frequency <13 GHz 10 dB rms [1] Random Jitter Jr 0.2 peak-to-peak, 215 -1 PRBS input [2] Deterministic Jitter, Jd Units dB Output High Voltage Output Rise / Fall Time Max 10 ps rms 2 ps, p-p Propagation Delay Clock to Q, td 95 ps Propagation Delay Reset to Q, tdr 125 ps [1] Upper limit of random jitter, JR, determined by measuring and integrating output phase noise with a sinusodal input at 5, 10, and 13.5 GHz over temperature. [2] Deterministic jitter calculated by simultaneously measuring the jitter of a 200 mV, 12.5 GHz, 215-1 PRBS input and a single-ended ouput. Output Differential Voltage vs. Supply Voltage [1][2] DC Current vs. Supply Voltage [1] [2] 95 1200 VOUT DIFFERENTIAL (mVp-p) DC CURRENT (mA) 90 +25C +85C -40C 85 80 75 70 65 2.9 3 HIGH SPEED LOGIC - SMT Parameter Input Return Loss 3 3.1 3.2 3.3 3.4 3.5 SUPPLY VOLTAGE (V) [1] VR = +3.3V 3.6 3.7 1150 1100 1050 1000 950 +25C +85C -40C 900 850 800 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 SUPPLY VOLTAGE (V) [2] Frequency = 12 GHz For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-2 HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Rise / Fall Time vs. Supply Voltage [1][3] Output Differential Voltage vs. Input Frequency [1][4] 25 VOUT DIFFERENTIAL (mVp-p) RISE/FALL TIME (ps) 1200 tr (12 GHz) tf (12 GHz) tr (24 GHz) tf (24 GHz) 23 21 19 17 15 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 1100 1000 900 800 +25C +85C -40C 700 600 500 2 3.7 6 10 14 18 22 FREQUENCY (GHz) SUPPLY VOLTAGE (V) 26 30 34 3.3 3.5 3.7 Rise / Fall Time vs. VR [1][2] Output Differential Voltage vs. VR [1][2] 25 1300 1200 +25C +85C -40C 1100 tr (12 GHz) tf (12 GHz) tr (24 GHz) tf (24 GHz) 23 RISE/FALL TIME (ps) VOUT DIFFERENTIAL (mVp-p) HIGH SPEED LOGIC - SMT 3 1300 1000 900 800 700 21 19 17 600 500 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 15 2.1 3.7 2.3 2.5 2.7 VR (V) Input Return Loss vs. Frequency 2.9 VR (V) 3.1 Output Return Loss vs. Frequency 0 0 -5 -5 RETURN LOSS (dB) RETURN LOSS (dB) -10 -15 -20 -25 -30 -15 -20 -25 -35 -40 -30 0 [1] VR = 3.3 V 3-3 -10 5 10 15 FREQUENCY (GHz) [2] Frequency = 12 GHz 20 25 0 2 4 6 8 10 12 14 FREQUENCY (GHz) [3] Frequency = 24 GHz [4] Vcc = 3.3 V For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Output Waveform Timing Diagram For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3 HIGH SPEED LOGIC - SMT [1] Test Conditions: Waveform generated with a CW signal source input at 26 GHz. Diagram data presented on a Tektronix CSA 8000. Device is AC coupled to scope. 3-4 HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Absolute Maximum Ratings HIGH SPEED LOGIC - SMT 3 Power Supply Voltage (Vcc) Vcc -0.5 V to 3.75 V Input Signals Vcc - 2.0 V to Vcc + 0.5 V Output Signals Vcc - 1.5 V to Vcc + 0.5 V Continuous Pdiss (T = 85 °C) (derate 17 mW/°C above 85 °C) 0.68 W Thermal Resistance (Rth j-p) Worst case junction to package paddle 59 °C/W Maximum Junction Temperature 125 °C Storage Temperature -65 °C to +150 °C Operating Temperature -40 °C to +85 °C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing NOTES: 1. PACKAGE BODY MATERIAL: ALUMINA 2. LEAD AND GROUND PADDLE PLATING: 30-80 MICROINCHES GOLD OVER 50 MICROINCHES MINIMUM NICKEL. 3. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 5. PACKAGE WARP SHALL NOT EXCEED 0.05 mm DATUM -C6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND. 7. PADDLE MUST BE SOLDERED TO GND. 3-5 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Pin Descriptions [1] Function Description 1, 4, 5, 8, 9, 12 GND Signal Grounds 2, 3 RP, RN Differential Reset Inputs: Current Mode Logic (CML) referenced to positive supply. 6, 7 CP, CN Differential Data Inputs: Current Mode Logic (CML) referenced to positive supply. 10, 11 QN, QP Differential Data Outputs: Current Mode Logic (CML) referenced to positive supply. 13, 16 Vcc Positive Supply 14, Package Base GND Supply Ground 15 VR Output level control. Output level may be adjusted by applying a voltage to VR per “Output Differential vs. VR” plot. Interface Schematic 3 HIGH SPEED LOGIC - SMT Pin Number [1] Contact HMC for alternate pinouts For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-6 HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Evaluation PCB HIGH SPEED LOGIC - SMT 3 List of Materials for Evaluation PCB 090-00328-00 [1] Item Description J1, J2, J5, J6 PCB Mount SMA RF Connectors J3, J4 SRI-K Connectors J7 - J9 DC Pin JP1 Shorting Jumper C1, C2 4.7 µF Capacitor, Tantalum C3 - C5 100 pF Capacitor, 0402 Pkg. R2 10 Ohm Resistor, 0603 Pkg. U1 HMC749LC3C PCB [2] 122515 Evaluation Board [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25FR or Rogers 4350 3-7 The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads should be connected directly to the ground plane similar to that shown. The exposed packaged base should be connected to GND. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. Install jumper on JP1 to short VR to Vcc for normal operation. For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC749LC3C v04.1010 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Application Circuit HIGH SPEED LOGIC - SMT 3 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 3-8