For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
1
HMC747LC3C
v06.0413
14 Gbps, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
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.
General Description
Features
Functional Diagram
Supports High Data Rates: up to 14 Gbps
Differential & Single-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 mm2
Typical Applications
The HMC747LC3C is ideal for:
• RF ATE Applications
• Broadband Test & Measurement
• Serial Data Transmission up to 14 Gbps
• Digital Logic Systems up to 14 GHz
Electrical Specications, TA = +25 °C, Vcc = 3.3 V, VR = 3.3 V
Parameter Conditions Min. Typ. Max Units
Power Supply Voltage 3.0 3.3 3.6 V
Power Supply Current 80 mA
Maximum Data Rate 14 Gbps
Maximum Clock Rate 14 GHz
Input Voltage Range Vcc - 1.5 Vcc + 0.5 V
Input Differential Range 0.1 2Vp-p
Input Return Loss Frequency <14 GHz 10 dB
Output Amplitude Single-Ended, peak-to-peak 550 mVp-p
Differential, peak-to-peak 1100 mVp-p
Output High Voltage 3.29 V
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
2
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Electrical Specications (continued)
Parameter Conditions Min. Typ. Max Units
Output Low Voltage 2.74 V
Output Rise / Fall Time Differential, 20% - 80% 22 / 20 ps
Output Return Loss Frequency <13 GHz 10 dB
Random Jitter Jr rms 0.2 ps rms
Deterministic Jitter, Jd peak-to-peak, 215-1 PRBS input [1] 2 ps, p-p
Propagation Delay Clock to Data, td 105 ps
Clock Phase Margin 13 GHz 320 deg
Set Up & Hold Time, tSH 6ps
VR Pin Current VR = 3.3 V 2 mA
VR Pin Current VR = 3.7 V 3.5 mA
[1] Deterministic jitter calculated by simultaneously measuring the jitter of a 300 mV, 13 GHz, 215-1 PRBS input, and a single-ended output
[1] VR = 3.3 V [2] Frequency = 13 GHz [3] Vcc = 3.3 V
DC Current vs. Supply Voltage [1][2]
Rise / Fall Time vs. Supply Voltage [1][2]
Output Differential Voltage
vs. Supply Voltage [1][2]
Output Differential Voltage vs. VR [1][2]
60
65
70
75
80
85
90
95
2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7
+25C
+85C
-40C
DC CURRENT (mA)
SUPPLY VOLTAGE (V)
1000
1025
1050
1075
1100
1125
1150
1175
1200
2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7
+25C
+85C
-40C
VOUT DIFFERENTIAL (mVp-p)
SUPPLY VOLTAGE (V)
15
17
19
21
23
25
2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7
tr
tf
RISE/FALL TIME (ps)
SUPPLY VOLTAGE (V)
400
600
800
1000
1200
1400
2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7
+25C
+85C
-40C
VOUT DIFFERENTIAL (mVp-p)
VR (V)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
[1] Vcc = 3.3 V [2] Frequency = 13 GHz
Input Return Loss vs. Frequency
Output Return Loss vs. Frequency
Rise / Fall Time vs. VR [1][2]
15
17
19
21
23
25
2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7
tr
tf
RISE/FALL TIME (ps)
VR (V)
-30
-25
-20
-15
-10
-5
0
0 2 4 6 8 10 12 14
CLK
DATA
RETURN LOSS (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
0 2 4 6 8 10 12 14
RETURN LOSS (dB)
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
4
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Eye Diagram
Timing Diagram
Truth Table
Input Outputs
D C Q
L L -> H L
H L -> H H
Notes:
D = DP - DN
C = CP - CN
Q = QP - QN
H - Positive voltage level
L - Negative voltage level
I
fclock
tc =
tSH = Setup and Hold Time
CPM = Clock Phase Margin = 360° tc - tSH
tc
[1] Test Conditions:
Pattern generated with an Agilent N4903A Serial BERT.
Eye Diagram presented on a Tektronix CSA 8000.
Device input = 13 Gbps PN code.
Both output channels shown.
Device is AC coupled to scope.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
5
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Absolute Maximum Ratings
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 -C-
6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
7. PADDLE MUST BE SOLDERED TO GND.
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
ESD Sensitivity (HBM) Class 1C
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
6
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Pin Number Function Description Interface Schematic
1, 4, 5, 8, 9, 12 GND Signal Grounds
2, 3
6, 7
DN, DP
C P, C N
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 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.
Pin Descriptions
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
7
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Evaluation PCB
List of Materials for
Evaluation PCB EVAL01-HMC747LC3C [1]
Item Description
J1 - J6 PCB Mount SMA RF 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 HMC747LC3C
High Speed Logic, D-Type Flip-Flop
PCB [2] 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
gro-und 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.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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
8
HMC747LC3C
v06.0413
14 GBPS, FAST RISE TIME D-TYPE FLIP-FLOP
w/ PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY
Application Circuit
