20 Gbps NRZ/RZ High Performance Driver Module
The Photline DR-DG-20-MO is a high performance versatile driver module designed for 2.5 Gbps up to 20 Gbps data transmission with NRZ or RZ format. It exhibits a 28 dB gain and can deliver an output signal up to 9 Vpp.
The Photline DR-DG-20-MO is a key component to obtain high quality 2.5 Gbps up to 20 Gbps eye diagrams with low rise and fall time, low jitter and high SNR. It operates from a single power supply for safety and ease of use, and offers gain and cross point controls. It comes with K type RF connectors (female in, male out) and with an optional heat sink.
FEATURES
• Output voltage up to 8 Vpp
• Low Rise/Fall time
• Flat gain up to 20 GHz
• Single voltage power supply
• Low group delay variation
APPLICATIONS
• LiNbO3 modulators
• 20 Gbps NRZ and RZ
• Research & Development
Performance Highlights
Parameter
Min
Typ
Max
Unit
Cut-off frequencies
50 k
-
18 G
Hz
Output voltage
2
-
8
Vpp
Gain
28
30
-
dB
Saturated output power
-
-
23
dBm
Added jitter
-
0.9
-
ps
Rise / Fall times
-
14
-
ps
Measurements for Vbias = 12 V, Vamp = 0.65 V, Vxp = 1 V, Ibias = 319 mA
20 Gbps Output Response
DC Electrical Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
Supply voltage (fixed)
Vbias
-
12
-
V
Current consumption
Ibias
-
260
-
A
Gain control voltage
Vamp
-
0.5
-
V
Cross Point control voltage
Vxp
-
0.9
-
V
Electrical Characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Lower frequency
f3dB, lower
-3 dB point
-
-
50
kHz
Upper frequency
f3dB, upper
-3 dB point
18
20
-
GHz
Gain
S21
Small signal
28
30
-
dB
Gain ripple
-
f < 15 GHz
-
±1.5
-
dB
Input return loss
S11
10 MHz < f < 12 GHz
-
-10
-
dB
Output return loss
S22
10 MHz < f < 15 GHz
-
-10
-
dB
Saturated output power
Psat
Vin = 0.5 Vpp
22
23
-
dBm
Output voltage
Vout
Vin = 0.5 Vpp
2
-
8
Vpp
Rise / Fall time
tr / tf
20 % - 80 %
-
12 / 16
-
ps
Added jitter
JRMS
JRMS =√J2RMS-total- J2 RMS-source
-
0.9
-
ps
Noise Figure
NF
1 GHz < f < 20 GHz
3.5
-
6
dB
Power dissipation
P
Vout = 8 Vpp
-
3.2
-
W
Conditions: Vin = 0.5 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
-
1
Vpp
Supply voltage
Vbias
11
13
V
DC current
Ibias
0
0.4
A
Gain control voltage
Vamp
0
1.2
V
Cross Point control voltage
Vxp
0
1.1
Vpp
Power dissipation
Pdiss
-
5.2
W
Temperature of operation
Top
0
+40
°C
Storage temperature
Tst
-20
+70
°C
S21 and Group Delay Parameter Curves
Conditions: Vbias = 12 V, Vamp = 0.65 V, Vxp =1 V, Ibias = 319 mA
S12 Parameter Curve
Conditions: Vbias = 12 V, Vamp = 0.65 V, Vxp =1 V, Ibias = 319 mA
S22 Parameter Curve
Conditions: Vbias = 12 V, Vamp = 0.65 V, Vxp =1 V, Ibias = 319 mA
S11 Parameter Curve
Conditions: Vbias = 12 V, Vamp = 0.65 V, Vxp =1 V, Ibias = 319 mA
Typical Output Voltage Amplitude vs Vamp
Conditions: Vbias = 12 V, Vin = 0.5 V
Typical Cross point vs Vxp
Conditions: Vbias = 12 V, Vin = 0.5 V
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
Operational Notes
IN
RF In
K-connector female
OUT
RF Out
K-connector male
Vbias
Power supply voltage
Set at 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
Mechanical Diagram And Pinout With HS-M02 Heatsink
All measurements in mm