HMC749LC3C

HMC749LC3C v01.1208 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Typical Applications The HMC749LC3C is ideal for: • Serial Data Transmission up to 26 Gbps Features Supports Clock Frequencies up to 26 GHz Differential & Singe-Ended Operation Fast Rise and Fall Times: 18 / 17 ps Low Power Consumption: 270 mW typ. Programmable Differential Output Voltage Swing: 600 - 1100 mV Propagation Delay: 95 ps Single Supply: +3.3V 16 Lead Ceramic 3x3mm SMT Package: 9mm2 7 HIGH SPEED LOGIC - SMT • High Speed Frequency Divider (up to 26 GHz) • Broadband Test & Measurement • RF ATE Applications 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. The HMC749LC3C also features an output level control pin, VR, which allows for loss compensation or for signal level optimization. All input signals to the HMC749LC3C are terminated with 50Ω to Vcc on-chip, and may be either AC or DC coupled. inputs or outputs can be connected directly to a 50Ω Vcc terminated system, while DC blocking capacitors may be used if the terminating system is 50Ω ground. The HMC749LC3C operates from a single +3.3V DC supply and is available in a ceramic RoHS compliant 3x3 mm SMT package. Electrical Specifi cations, TA = +25ºC Vcc = +3.3V Parameter Power Supply Voltage Power Supply Current Maximum Clock Rate Input High Voltage Input Low Voltage Input Return Loss Output Amplitude Differential, peak-to-peak Output High Voltage Output Low Voltage 1100 3.25 2 mVpp mV mV Frequency H X X Q 0 1 0 1 Q Next 1 0 0 (ASYNC) 0 (ASYNC) H - Negative voltage level L - Positive voltage level F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 7 - 181 HMC749LC3C v01.1208 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Absolute Maximum Ratings Power Supply Voltage (Vcc) Input Signals Output Signals -0.5V to +3.7V Vcc - 2V to Vcc + 0.5V +1V to +3.7V -65°C to +150°C -40°C to +85°C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS 7 HIGH SPEED LOGIC - SMT Storage Temperature Operating Temperature 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 0.05mm DATUM -C6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND. 7. PADDLE MUST BE SOLDERED TO GND. 7 - 182 F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC749LC3C v01.1208 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Pin Descriptions [1] Pin Number 1, 4, 5, 8, 9, 12 Function GND Description Signal Grounds Interface Schematic 7 2, 3 Reset Inputs 6, 7 CP, CN Clock Inputs 10, 11 QN, QP Data Output 13, 16 14, Package Base Vcc GND Positive Supply Supply Ground Output level control. Output level may be adjusted by applying a voltage to VR per “Output Differential vs. VR” plot. 15 VR [1] Contact HMC for alternate pinouts F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 7 - 183 HIGH SPEED LOGIC - SMT RP, RN HMC749LC3C v01.1208 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Evaluation PCB 7 HIGH SPEED LOGIC - SMT Item J1 J2 J3 J4 J5 J6 J7 J8 J9 Description RP RN CP CN QN QP GND VR Vcc List of Materials for Evaluation PCB 122517 [1] Item J1 - J6 J7 - J9 JP1 C1, C2 C3 - C5 R2 U1 PCB [2] Description PCB Mount SMA RF Connectors DC Pin Shorting Jumper 4.7 μF Capacitor, Tantalum 100 pF Capacitor, 0402 Pkg. 10 Ohm Resistor, 0603 Pkg. HMC749LC3C 122515 Evaluation Board [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25FR The circuit board used in the final 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. 7 - 184 F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC749LC3C v01.1208 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY Application Circuit 7 HIGH SPEED LOGIC - SMT F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 7 - 185