HMC748LC3C
v01.1208
13 Gbps, 2:1 SELECTOR w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Typical Applications
The HMC748LC3C is ideal for: • 2:1 Multiplexer up to 13 Gbps
Features
Supports High Data Rates: up to 13 Gbps Single-ended inputs Differential & Single-ended outputs Fast Rise and Fall Times: 22 / 22 ps Low Power Consumption: 250 mW typ. Programmable Differential Output Voltage Swing: 600 - 1200 mV Propagation Delay: 125 ps Single Supply: +3.3V 16 Lead Ceramic 3x3mm SMT Package: 9mm 2
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HIGH SPEED LOGIC - SMT
• RF ATE Applications • Broadband Test & Measurement • Serial Data Transmission up to 13 Gbps • Redundant Path Switching • Built-in Test
Functional Diagram
General Description
The HMC748LC3C is a 2:1 Selector designed to support data transmission rates of up to 13 Gbps, and selector port operation of up to 13 GHz. The selector routes one of the two single-ended inputs to the differential output upon assertion of the proper select port. The HMC748LC3C also features an output level control pin, VR, which allows for loss compensation or for signal level optimization. All single-ended input signals to the HMC748LC3C are terminated with 50 ohms to Vcc on-chip, and may be either AC or DC coupled. The outputs of the HMC748LC3C may be operated either differentially or single-ended. Inputs or outputs can be connected directly to a 50 ohm to Vcc terminated system, while DC blocking capacitors may be used if the terminating system is 50 ohms to ground. The HMC748LC3C operates from a single +3.3V DC supply and is housed in a ceramic RoHS compliant 3x3 mm SMT package.
Electrical Specifi cations, TA = +25°C, Vcc = +3.3V
Parameter Power Supply Voltage Power Supply Current Maximum Data Rate Maximum Select Rate Maximum Serial Transmission Rate Input High Voltage Input Low Voltage Input Return Loss Output Amplitude Differential, peak-to-peak Output High Voltage 1100 3.25 mVpp V Frequency D
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
HMC748LC3C
v01.1208
13 Gbps, 2:1 SELECTOR w/ 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
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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.
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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
HMC748LC3C
v01.1208
13 Gbps, 2:1 SELECTOR 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
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2, 3 AP, BP Data Inputs
6, 7
SP, SN
Select Inputs
10, 11
DN, DP
Data Outputs
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, 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
HMC748LC3C
v01.1208
13 Gbps, 2:1 SELECTOR w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Evaluation PCB
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HIGH SPEED LOGIC - SMT
Item J1 J2 J3 J4 J5 J6 J7 J8 J9
Description AP BP SP SN DN DP 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. HMC748LC3C High Speed Logic, 2:1 Selector 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 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.
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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
HMC748LC3C
v01.1208
13 Gbps, 2:1 SELECTOR w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Application Circuit
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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
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