22 Gbps High Output Voltage Driver
The Photline DR-DG-20-HO is a driver module optimized for digital applications requiring an upper operation voltage. It exhibits 12.5 Vpp output volatge and 29 dB gain up to 23 GHz.
The Photline DR-DG-20-HO module is especially useful for driving LiNbO3 modulators with 22 Gbps DPSK and 2x20 Gbps (D)QPSK modulation formats. It is operated from a single power supply voltage for safety and ease of use and offers gain and cross-point control.
The Photline DR-DG-20-HO comes with K type RF connectors (female in, male out) and with an optionnal heat sink. It is a non-inverting and single ended amplifier.
FEATURES
• High output voltage 12.5 Vpp
• High gain 29 dB
• Flat gain up to 20 GHz
• Single voltage power supply
APPLICATIONS
• LiNbO3 & InP modulators
• 22 Gbps DPSK
• 2x20 Gbps (D)QPSK
• Research & Development
OPTIONS
• 13.5 Vpp output voltage
• Heat-sink
• Analog version
• Low output voltage version for EAM
RELATED EQUIPMENTS
• MXIQ-LN-40, MX-LN-20 modulators
• MBC-DG Automatic Bias Controllers
Performance Highlights
Parameter
Min
Typ
Max
Unit
Cut-off Frequencies
80 k
23 G
25 G
Hz
Output Voltage
-
12.5
13.5
Vpp
Gain
-
29
-
dB
Saturated Power
26
-
-
dBm
Added Jitter
-
1.05
-
ps
Rise / Fall Times
-
12 / 16
-
ps
Measurements for Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
20 Gbps Output Response
DC Electrical Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
Supply voltage (fixed)
Vbias
-
12
13
V
Current consumption
Ibias
-
0.53
0.56
mA
Gain control voltage
Vamp
0
1.5
2
V
Cross point control voltage
Vxp
0
0.7
1
V
Electrical Characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Lower frequency
f3db, lower
-3 dB point
-
-
80
kHz
Upper frequency
f3db, upper
-3 dB point
-
23
25
GHz
Gain
S21
Small signal
-
29
-
dB
Gain ripple
-
< 17 GHz
-
±1.5
-
dB
Input return loss
S11
50 kHz < f < 18 GHz
-
-10
-
dB
Output return loss
S22
50 kHz < f < 15 GHz
-
-10
-
dB
Saturated power
Psat
Vin = 0.65 Vpp
26
-
-
dBm
Output voltage
Vout
Vin = 0.65 Vpp @20 Gbps
-
12.5
13.5
(Vin=1Vpp)
Vpp
Rise time / Fall time
tr / tf
20 % - 80 %
-
12 / 16
-
ps
Added jitter
JRMS
JRMS=√J2RMS-total- J2RMS-source
-
1.05
-
ps
Power dissipation
P
Vout = 12.5 Vpp
-
6.4
-
W
Conditions: Vin = 0.65 Vpp, Tamb = 25 °C, 50 W system
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
Parameter
Symbol
Min
Max
Unit
RF input voltage
Vin
-
0.8
Vpp
Supply Voltage
Vbias
-
13
V
DC current
Ibias
-
0.56
A
Gain control voltage
Vamp
0
2
V
Cross point control voltage
Vxp
0
1
V
Power dissipation
Pdiss
-
7.3
W
Temperature of operation
Top
0
+40
°C
Storage temperature
Tst
-10
+70
°C
S21 Parameter Curve
Conditions: Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
Group Delay Parameter Curve
Conditions: Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
S22 Parameter Curve
Conditions: Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
S11 Parameter Curve
Conditions: Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
S12 Paremeter Curve
Conditions: Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
Noise Factor Curve
Conditions: Vbias = 12 V, Vamp = 1.2 V, Vxp = 0.7 V, Ibias = 650 mA
Eye Diagrams
Electrical Schematic Diagram
Mechanical Diagram and Pinout
All measurements in mm
The heatsinking of the module is necessary. It’s user responsability to use an adequate heatsink. Refer to the iXBlue recommended heatsink.
PIN
Function
Unit
IN
RF In
K connector female
OUT
RF Out
K connector male
Vbias
Power supply voltage
Set a typical operating specification
Vamp
Output voltage amplitude adjustment
Adjust for gain control tuning
Vxp
Output voltage cross point adjustment
Adjust for cross point control tuning
Det
RF power detector
Option
Mechanical Diagram And Pinout With HS-HO1 Heatsink
All measurements in mm