HMC747LC3C
v03.1010
14 Gbps, FAST RISE TIME D-TYPE FLIP-FLOP w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Typical Applications
The HMC747LC3C is ideal for: • RF ATE Applications
Features
Supports High Data Rates: up to 14 Gbps Differential & Singe-Ended Operation Fast Rise and Fall Times: 22 / 20 ps Low Power Consumption: 264 mW typ. Programmable Differential Output Voltage Swing: 700 - 1300 mV Propagation Delay: 105 ps Single Supply: +3.3 V 16 Lead Ceramic 3x3 mm SMT Package: 9 mm 2
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HIGH SPEED LOGIC - SMT
• Broadband Test & Measurement • Serial Data Transmission up to 14 Gbps • Digital Logic Systems up to 14 GHz
Functional Diagram
General Description
The HMC747LC3C is a D-Type Flip-Flop designed to support data transmission rates of up to 14 Gbps, and clock frequencies as high as 14 GHz. During normal operation, data is transferred to the outputs on the positive edge of the clock. Reversing the clock inputs allows for negative-edge triggered applications. All differential inputs to the HMC747LC3C 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 HMC747LC3C also features an output level control pin, VR, which allows for loss compensation or signal-level optimazation. the HMC747LC3C operates from a single 3.3 V supply and is available in ROHS-compliant 3x3 mm SMT package.
Electrical Specifications, TA = +25 °C, Vcc = 3.3 V, VR = 3.3 V
Parameter Power Supply Voltage Power Supply Current Maximum Data Rate Maximum Clock Rate Input Voltage Range Input Differential Range Input Return Loss Output Amplitude Output High Voltage Frequency H H - Positive voltage level L - Negative voltage level Outputs Q L H
F or 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
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HMC747LC3C
v03.1010
14 Gbps, FAST RISE TIME D-TYPE FLIP-FLOP w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Absolute Maximum Ratings
Power Supply Voltage (Vcc) Input Signals Output Signals Continuous Pdiss (T = 85 °C) (derate 17 mW/°C above 85 °C) Thermal Resistance (Rth j-p) Worst case junction to package paddle Maximum Junction Temperature Storage Temperature Operating Temperature Vcc -0.5 V to 3.75 V Vcc - 2.0 V to Vcc + 0.5 V Vcc - 1.5 V to Vcc + 0.5 V 0.68 W 59 °C/W 125 °C -65°C to +150°C -40°C to +85°C
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HIGH SPEED LOGIC - SMT
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.
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F or 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
HMC747LC3C
v03.1010
14 Gbps, FAST RISE TIME D-TYPE FLIP-FLOP w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Pin Descriptions
Pin Number 1, 4, 5, 8, 9, 12 Function GND Description Signal Grounds Interface Schematic
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HIGH SPEED LOGIC - SMT
3-6
2, 3 6, 7
DN, DP 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.s
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
F or 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
HMC747LC3C
v03.1010
14 Gbps, FAST RISE TIME D-TYPE FLIP-FLOP w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Evaluation PCB
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HIGH SPEED LOGIC - SMT
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. HMC747LC3C High Speed Logic, D-Type Flip-Flop 122515 Evaluation Board
[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25FR or Rogers 4350
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 package 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.
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F or 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
HMC747LC3C
v03.1010
14 Gbps, FAST RISE TIME D-TYPE FLIP-FLOP w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Application Circuit
3
HIGH SPEED LOGIC - SMT
F or 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
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