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
7
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 sup-
port 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,
T
A
= +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 <13 GHz
Single-Ended, peak-to-peak
2.8
2.1
10
550
Conditions
Min.
3.0
Typ.
3.3
76
13
13
26
3.8
3.3
Max
3.6
Units
V
mA
Gbps
GHz
Gbps
V
V
dB
mVpp
7 - 170
For 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
Electrical Specifi cations
(continued)
Parameter
Output Low Voltage
Output Rise / Fall Time
Output Return Loss
Random Jitter, Jr
Deterministic Jitter, Jd
Propagation Delay, A or B to D
OUT
, td
Propagation Delay Select to Data, tds
Set Up & Hold Time, t
SH
Differential, 20% - 80%
Frequency <13 GHz
rms
[1]
peak-to-peak, 2
15
-1 PRBS input
[2]
2
125
135
6
Conditions
Min.
Typ.
2
22 / 22
10
0.2
Max
Units
V
ps
dB
ps rms
ps, pp
ps
ps
ps
7
HIGH SPEED LOGIC - SMT
[1] Upper limit of random jitter, Jr, determined by measuring and integrating output phase noise with a sinusoidal 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, 2
15
-1 PRBS input, and a single-ended output
DC Current vs. Supply Voltage
[1] [2]
110
+25C
+85C
-40C
Output Differential vs. Supply Voltage
[1] [2]
1200
DIFFERENTIAL VOLTAGE (mV)
1175
1150
1125
1100
1075
1050
1025
1000
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
+25C
+85C
-40C
100
DC CURRENT (mA)
90
80
70
60
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Rise / Fall Time vs. Supply Voltage
[1] [2]
25
23
RISE/FALL TIME (ps)
21
19
17
15
2.9
Output Differential vs. Frequency
[1]
1300
OUTPUT DIFFERENTIAL (mV)
1200
1100
1000
900
800
700
600
tr
tf
3
3.1
3.2
3.3
3.4
SUPPLY VOLTAGE (V)
3.5
3.6
3.7
2
4
6
8
10
12
14
16
18
FREQUENCY (GHz)
[1] VR = +3.3V
[2] Frequency = 13 GHz
For 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 - 17
HMC748LC3C
v01.1208
13 Gbps, 2:1 SELECTOR w/ PROGRAMMABLE
OUTPUT VOLTAGE & POSITIVE SUPPLY
Output Differential vs. VR
[2]
1400
Rise / Fall Time vs. VR
[2]
25
DIFFERENTIAL VOLTAGE (mV)
1200
RISE/FALL TIME (ps)
23
7
HIGH SPEED LOGIC - SMT
1000
21
800
+25C
+85C
-40C
19
tr
tf
600
17
400
2.1
2.3
2.5
2.7
2.9
VR (V)
3.1
3.3
3.5
3.7
15
2.1
2.3
2.5
2.7
2.9
VR (V)
3.1
3.3
3.5
3.7
Input Return Loss vs. Frequency
0
-5
-10
RETURN LOSS (dB)
-15
-20
-25
-30
-35
0
2
4
6
8
10
12
14
FREQUENCY (GHz)
Output Return Loss vs. Frequency
0
-5
-10
RETURN LOSS (dB)
-15
-20
-25
-30
-35
0
2
4
6
8
10
12
14
FREQUENCY (GHz)
Select Port Return Loss vs. Frequency
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
0
2
4
6
8
10
12
14
FREQUENCY (GHz)
[1] VR = +3.3V
[2] Frequency = 13 GHz
7 - 172
For 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
Eye Diagram
[1] Test Conditions:
Waveform generated with an Agilent N4903A J-Bert.
Rate = 13 GHz
Eye Diagram data presented on a Tektronix CSA 8000
Device is AC coupled to scope.
7
HIGH SPEED LOGIC - SMT
Timing Diagram
Truth Table
Inputs
SP
L
H
H = Negative Voltage Level
L = Positive Voltage Level
Notes:
D = DP - DN
S = SP - SN
SN
H
L
Outputs
DP
A -> D
B -> D
For 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 - 17
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
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 -C-
6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
7. PADDLE MUST BE SOLDERED TO GND.
7 - 174
For 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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