HITTITE HMC750LP4

HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Typical Applications
Features
The HMC750LP4(E) is ideal for:
Supports Data Rates up to 12.5 Gbps
•• OC-192 Receivers
Differential Gain: 44 dB
•• 10 Gbps Ethernet Receivers
2mV p-p input Sensitivity
•• 10 Gbps Fiber Channel Receivers
3 dB Bandwidth: 11 GHz
Integrated DC Offset Correction
•• Broadband Test & Measurement
Adjustable Differential Saturated
O/P Voltage Swing up to 880 mVp-p
Single +5V Power Supply
Very Low RMS Jitter Degradation
General Description
Functional Diagram
HMC750LP4E is a limiting amplifier designed to support data transmission rates up to 12.5 Gbps. The
amplifier can operate over a wide range of input voltage
levels and provides constant-level differential output
swing. HMC750LP4E also features an output level
control pin, VC1, which allows for loss compensation
or for signal level optimization. Differential output
signal swing can be adjustable up to 880 mVp-p.
Input signals higher than 3mV p-p can be amplified to
saturated 880mV p-p differential signal.
limiting amplifiers - smt
6
24 Lead Plastic 4x4mm SMT Package: 16mm²
All single-ended input signals to the HMC750LP4E
are terminated with 50 ohms to +5V on-chip, and
may be either AC or DC coupled. The outputs of the
HMC750LP4E may be operated either differentially
or single-ended. Outputs can be connected directly
to a 50 ohm terminated system referenced to +5V,
while DC blocking capacitors may be used if the
terminating system is 50 ohms to a non +5V voltage.
The HMC750LP4E operates from a single + 5V DC
supply and is available in a plastic RoHS compliant
4x4 mm SMT package.
Electrical Specifications, TA = +25° C, Vcc = +5V, VC1 = +2.5V
Parameter
Conditions
Power Supply Voltage
Power Supply Current
VC1 = 2.5V
Maximum Data Rate
6-1
Min.
Typ.
Max.
Units
4.6
5
5.4
V
106
122
12.5
mA
Gbps
Differential Small Signal Gain
VC1 = 2.5V
44
dB
Small Signal Bandwidth
3-dB Cutoff
11
GHz
Deterministic Jitter [1]
Vin = 20 mV peak to peak
5
Additive Random Jitter [2]
Vin = 200 mV peak to peak
ps p-p
0.2
ps rms
For 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 [email protected]
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Electrical Specifications (Conditions)
Conditions
Fall Time
Typ.
Max.
Units
20% - 80%
Min.
23
27
ps
20% - 80%
21
23
ps
Differential Output Swing.
VC1 = 3V for maximum output swing.
850
Input Return Loss
up to 10 GHz
15
dB
Output Return Loss
up to 10 GHz
8
dB
Data Output Swing
Input Sensitivity
880
mVp-p
2
mVp-p
Maximum Input Swing
1200
Output Offset Voltage
VC1 = 3V for maximum output swing
mVp-p
3
VC1
Vout DC
mV
2
3
V
4.5
4.8
V
[1] Deterministic jitter measured at 10 Gbps with PRBS 2 -1 pattern. It is the peak to peak deviation from the ideal time crossing
[2] Random jitter is measured with 10 Gbps 10101… pattern
23
Differential Output vs. Supply Voltage [1]
1200
DIFFERENTIAL VOLTAGE (mV)
DIFFERENTIAL VOLTAGE (mV)
1000
1000
+25C
+85C
-40C
800
600
400
200
0
4.6
4.7
4.8
4.9
5
5.1
5.2
SUPPLY VOLTAGE Vcc (V)
5.3
600
400
200
500
5
RMS JITTER (ps)
6
400
300
200
100
2.5
2.7
2.9
CONTROL VOLTAGE VC1 (V)
3.1
4
3
2
1
1
10
100
1000
Vin (mV)
[1] VC1 = 2.5V
2.3
RMS Jitter vs. Vinput [1][2][3]
600
0
0.1
+25C
+85C
-40C
800
0
2.1
5.4
Differential Output vs. Vinput [1][2]
DIFFERENTIAL VOLTAGE (mV)
Differential Output vs. Control Voltage [2]
6
limiting amplifiers - smt
Parameter
Rise Time
[2] Vcc = 5V
0
0
100
200
300
Vin (mV)
400
500
600
[3] Input Data Rate = 10 Gbps
For 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 [email protected]
6-2
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
DC Current vs. Supply Voltage [1] [3]
40
200
36
160
DC CURRENT (mA)
RISE TIME, FALL TIME 20%-80% (ps)
Rise & Fall Time vs. Vinput [1] [2] [3]
Rise Time
Fall Time
32
28
120
24
80
40
20
0
100
200
300
Vin (mV)
6
400
500
0
4.6
600
DC Current vs. Control Voltage [2] [3]
4.7
4.8
4.9
5
5.1
5.2
SUPPLY VOLTAGE Vcc (V)
5.3
5.4
Differential Gain vs. Frequency [1] [2]
50
200
+25C
+85C
-40C
170
40
140
GAIN (dB)
DC CURRENT (mA)
110
30
20
80
10
50
20
2.1
0
2.3
2.5
2.7
2.9
CONTROL VOLTAGE Vc1 (V)
0
3.1
2
4
6
8
10
FREQUENCY (GHz)
12
14
16
Return Loss [1] [2]
0
-10
RETURN LOSS (dB)
limiting amplifiers - smt
+25C
+85C
-40C
-20
-30
-40
-50
s11
s22
0
2
4
6
8
10
12
14
16
FREQUENCY (GHz)
[1] VC1 = 2.5V
6-3
[2] Vcc = 5V
[3] Input Data Rate = 10 Gbps
For 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 [email protected]
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Output Eye Diagram
Test Conditions
Eye diagram data presented on an Infinium
DCA 86100A
Rate = 10 Gb/s
Pseudo Random Code = 223 -1
Vin = 100 mVpp differential, VC1 = 3V
Minimum
Maximum
Rise Time (f1)
23.33 ps
23.33 ps
23.33 ps
32
Fall Time (f1)
24.67 ps
24.00 ps
25.33 ps
32
Differential Eye
Amplitude (f1)
860 mV
858 mV
860 mV
32
Eye S/N (f1)
15.35
15.28
15.50
32
Vertical Scale
100 mV / div
Horizontal Scale
30.0 ps / div
6
Total Meas
Output Eye Diagram
Test Conditions
Eye diagram data presented on an Infinium
DCA 86100A
Rate = 10 Gb/s
Pseudo Random Code = 223 -1
Vin = 500 mVpp differential, VC1 = 3V
Current
Minimum
Maximum
Total Meas
Rise Time (f1)
23.33 ps
22.67 ps
23.33 ps
30
Fall Time (f1)
24.67 ps
24.67 ps
26.00 ps
30
Differential Eye
Amplitude (f1)
862 mV
861 mV
862 mV
30
Eye S/N (f1)
15.27
15.19
15.35
30
Vertical Scale
100 mV / div
Horizontal Scale
30.0 ps / div
limiting amplifiers - smt
Current
For 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 [email protected]
6-4
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Input Signal
limiting amplifiers - smt
6
6-5
Output Signal
Input and output signal for 10 Gbps, PRBS 223 -1, 3.5mV p-p differential, VC1 = 3V.
Absolute Maximum Ratings
Supply Voltage
5.6V
Input Signals
4V to 5.5V
RF Input Power
10 dBm
Junction Temperature
125 °C
Continuous Pdiss (T = 85°C)
(Derate 24 mW/°C above 85°C)
0.95 Watts
Thermal Resistance (Rth)
(junction to ground paddle)
42 °C/W
Storage Temperature
-65 to 150 °C
Operating Temperature
-40 to +85 °C
For 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 [email protected]
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Outline Drawing
NOTES:
1.LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3.LEAD SPACING TOLERANCE IS NON-CUMULATIVE
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND.
7. REFER TO HMC APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN.
Package Information
Part Number
Package Body Material
Lead Finish
MSL Rating
HMC750LP4
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
[1]
HMC750LP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
[2]
Package Marking [3]
H750
XXXX
limiting amplifiers - smt
6
H750
XXXX
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
For 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 [email protected]
6-6
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Pin Descriptions
limiting amplifiers - smt
6
6-7
Pin Number
Function
Description
1, 18, 19,
22 - 24
Vcc
Positive supply.
2, 5, 14, 17,
Ground Paddle
GND
Signal and supply ground. Package
base must be connected to DC ground.
3, 4
INP, INN
Data inputs
6, 7,
9 - 13
N/C
No connection. These pins are not connected internally,
but should be connected to ground externally.
8
VC1
Gain, output level control.
15, 16
OUTN, OUTP
Data outputs
20, 21
CN, CP
Filter capacitor for offset correction.
Connect 100nF capacitor between CP and CN.
Interface Schematic
For 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 [email protected]
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Evaluation PCB
List of Materials for Evaluation PCB 121600 [1]
Item
Description
J1 - J4
PCB Mount SMA Connector
J6, J8, J9
DC Pin
C1, C2, C13
0.1 µF Capacitor, 0402 Pkg.
C5 - C7
1 nF Capacitor, 0402 Pkg.
C14
4.7 µF Capacitor, 0402 Pkg.
C16
100 pF Capacitor, 0402 Pkg.
C17
10 nF Capacitor, 0402 Pkg.
R1 -R4
0 Ohm Resistor, 0402 Pkg.
R7
620 Ohm Resistor, 0402 Pkg.
U1
HMC750LP4(E) Limiting Amplifier
PCB [2]
121598 Evaluation PCB
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 and exposed paddle should be connected directly to the ground plane similar to that
shown. 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.
limiting amplifiers - smt
6
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25FR
For 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 [email protected]
6-8
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Application Circuit
limiting amplifiers - smt
6
6-9
For 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 [email protected]
HMC750LP4 / 750LP4E
v03.0111
12.5 Gbps LIMITING AMPLIFIER
Application Information
Setting the output swing using external resistor Rc
The HMC750LP4E features output swing level adjustment by using VC1 pin. Output swing can be adjusted to the
desired level by applying a DC voltage to VC1 pin. Differential output swing vs. control voltage relationship is given in
the plot below.
Differential Output vs. Control Voltage
1000
+25C
+85C
-40C
800
600
6
400
200
0
2.1
2.3
2.5
2.7
2.9
3.1
CONTROL VOLTAGE VC1 (V)
In order to adjust the DC voltage on VC1 pin a resistor, Rc (R7 in application circuit), should be connected between
VC1 pin and VCC as shown in the figure below.
The value of the resistor can be chosen using the following equation as a function of VC1. VC1 DC voltage value can
be chosen by using the plot given above.
For 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 app[email protected]
limiting amplifiers - smt
DIFFERENTIAL VOLTAGE (mV)
1200
6 - 10