HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE HIGH SPEED LOGIC - SMT 3 Typical Applications Features The HMC679LC3C is ideal for: Supports Clock Frequencies up to 26 GHz * Serial Data Transmission up to 26 Gbps Differential or 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 mVp-p Propagation Delay: 95 ps Single Supply: -3.3 V 16 Lead Ceramic 3 x 3 mm SMT Package: 9 mm2 Functional Diagram General Description The HMC679LC3C 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 HMC679LC3C are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. Outputs can be connected directly to a 50 Ohm ground-terminated system or drive devices with CML logic input. The HMC679LC3C also features an ouput level control pin, VR, which allows for loss compensation or signal level optimization. The HMC679LC3C operates from a single -3.3 V supply and is available in ROHS-compliant 3x3 mm SMT package. Electrical Specifi cations, TA = +25 C, Vee = -3.3 V, VR = 0 V Parameter Conditions Power Supply Voltage Min. Typ. Max -3.6 -3.3 -3.0 Power Supply Current 82 Maximum Clock Rate Units V mA 26 GHz Input Voltage Range -1.5 0.5 V Input Differential Range 0.1 2.0 Vp-p Input Return Loss Frequency <23 GHz 10 dB Single-Ended, peak-to-peak 550 mVp-p Differential, peak-to-peak Output Amplitude 3-1 1100 mVp-p Output High Voltage -10 mV Output Low Voltage -560 mV 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 apps@hittite.com HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE Electrical Specifi cations (continued) Conditions Min. Typ. Differential, 20% - 80% 18 / 17 Frequency <13 GHz 10 Output Return Loss Max ps dB rms [1] Random Jitter Jr 0.2 peak-to-peak, 215 -1 PRBS input [2] Deterministic Jitter, Jd Units ps rms 2 ps, p-p Propagation Delay Clock to Q, td 95 ps Propagation Delay Reset to Q, tdr 125 ps VR Pin Current VR = 0.0 V VR Pin Current VR = +0.4 V 2 mA 3.5 mA [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 output Output Differential Voltage vs. Supply Voltage [1][2] DC Current vs. Supply Voltage [1][2] 100 1500 +25 C +85 C -40 C 90 VOUT DIFFERENTIAL (mVp-p) DC CURRENT (mA) 95 85 80 75 70 65 60 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 SUPPLY VOLTAGE (V) -3 1100 1000 900 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 SUPPLY VOLTAGE (V) -3 -2.9 VOUT DIFFERENTIAL (mVp-p) 1200 20 RISE/FALL TIME (ps) 1200 Output Differential Voltage vs. Input Frequency [1] 22 tr tf 18 16 14 12 -3.7 +25C +85C -40C 1300 800 -3.7 -2.9 Rise / Fall Time vs. Supply Voltage [1][3] 1400 3 HIGH SPEED LOGIC - SMT Parameter Output Rise / Fall Time -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 1100 1000 900 800 700 600 500 400 8 SUPPLY VOLTAGE (V) 12 16 20 24 28 32 36 INPUT FREQUENCY (GHz) [1] VR = 0.0 V [2] Frequency = 13 GHz [3] Frequency = 24 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 apps@hittite.com 3-2 HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE Output Differential Voltage vs. VR [2] Rise / Fall Time vs. VR [3] 20 1300 1200 18 1100 RISE/FALL TIME (ps) +25 C +85 C -40 C 1000 900 800 700 16 14 tr tf 12 600 500 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 10 -1.2 0.4 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 VR (V) VR (V) Input Return Loss vs. Frequency [4] Output Return Loss vs. Frequency [4] 5 5 0 0 Eval Board Device -5 RETURN LOSS (dB) RETURN LOSS (dB) HIGH SPEED LOGIC - SMT 3 VOUT DIFFERENTIAL (mVp-p) 1400 -10 -15 -20 -25 -10 -15 -20 -25 -30 -30 -35 -35 -40 Eval Board Device -5 -40 0 4 8 12 16 20 24 28 0 2 4 FREQUENCY (GHz) 6 8 10 12 14 FREQUENCY (GHz) Reset Input Return Loss vs. Frequency [4] 0 RETURN LOSS (dB) -5 Eval Board Device -10 -15 -20 -25 -30 -35 -40 0 2 4 6 8 10 12 14 FREQUENCY (GHz) [1] VR = 0.0 V 3-3 [2] Frequency = 13 GHz [3] Frequency = 24 GHz [4] Device measured on evaluation board with singleended, time-domain gating 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 apps@hittite.com HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE 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 apps@hittite.com 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. 3-4 HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE Absolute Maximum Ratings HIGH SPEED LOGIC - SMT 3 Power Supply Voltage (Vee) -3.75 V to +0.5 V Input Signals -2 V to +0.5 V Output Signals -1.5 V to +1 V Continuous Pdiss (T = 85 C) (derate 17 mW/C above 85 C) 0.68 W Thermal Resistance (Rth l-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 ESD Sensitivity (HBM) Class 1C 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 Vee. 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 apps@hittite.com HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE Pin Descriptions Pin Number Function Description 1, 4, 5, 8, 9, 12 GND Signal Grounds Interface Schematic 2, 3 RP,RN Differential Reset Inputs: Current Mode Logic (CML) referenced to positive supply. 6, 7 CP,CN Differential Clock Inputs: Current Mode Logic (CML) referenced to positive supply. 10, 11 QN, QP Differential Clock Outputs: Current Mode Logic (CML) referenced to positive supply. 13, 16 GND Supply Ground 14 VR Output level control. Output level may be increased or decreased by applying a voltage to VR per "Output Differential vs. VR" plot. 15, Package Base Vee This pin and the exposed paddle must be connected to the negative voltage supply. 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 apps@hittite.com HIGH SPEED LOGIC - SMT 3 3-6 HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE Evaluation PCB HIGH SPEED LOGIC - SMT 3 List of Materials for Evaluation PCB 123585 [1] Item Description J1, J2, J5, J6 PCB Mount SMA RF Connectors J3, J4 PCB Mount 2.92mm RF Connectors J7 - J9 DC Pin JP1 0.1" Header with Shorting Jumper C1, C2 100 pF Capacitor, 0402 Pkg. C3, C4 4.7 F Capacitor, Tantalum R1 10 Ohm Resistor, 0603 Pkg. U1 HMC679LC3C PCB [2] 118775 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 Vee. 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 GND 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 apps@hittite.com HMC679LC3C v05.1010 26 GHz, T FLIP-FLOP w/ RESET & PROGRAMMABLE OUTPUT VOLTAGE 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 apps@hittite.com 3-8