SHF614A - SHF Communication Technologies AG

SHF Communication Technologies AG
Wilhelm-von-Siemens-Str. 23D • 12277 Berlin • Germany
Phone +49 30 772051-0 • Fax +49 30 7531078
E-Mail: sales@shf.de • Web: http://www.shf.de
Datasheet
SHF 614 A
60 GBaud 6-Bit DAC
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 1/14
Description
The SHF 614 A is a 6-Bit Digital-to-Analog Converter (DAC) operating at symbol rates up to 60 GBaud
for use in broadband test setups and telecom transmission systems. Up to six single ended serial data
streams are accepted by the DAC and converted into one differential 64-level data signal. By using less
than six input ports it is possible to generate 2-level NRZ as well as 4, 8, 16 or 32-level output signals.
With a programmable SHF BPG (e.g. SHF 12104 A) you have full control of the patterns into the DAC.
Therefore our BPG/DAC combination can be seen as a full blown remote head non-interleaved 60
GBaud Arbitrary Waveform Generator (AWG).
A single ended clock signal with the same frequency as the data rate is required to drive the SHF 614
A. For data regeneration purposes all input data signals are re-sampled to mitigate any signal
impairments resulting e.g. from long cables. Therefore, it becomes possible to place the DAC very
close to the DUT. Clock input port and data output ports are AC-coupled. Data input ports are DCcoupled.
Features






Broadband operation up to 60 GBaud
Output baud rate = sample rate
Differential data output, 2.8 V differential output swing (1.4 V in single-ended operation)
Single ended clock and data inputs
Latched input ports
Output amplitude & input threshold level control (remote by software)
Applications



100, 200, 400 Gbps and 1 Tbps system evaluation & development
Broadband test and measurement equipment
PAM-N, OFDM, Advanced Modulation Experiments
Options

Option Case:
DAC module, power supplies, cooling measures and 1.85 mm panel adaptors
are housed in a small benchtop case.
Block Diagram
Out
Out
SHF
614 A
6-Bit DAC
USB/
CTRL
D5
(MSB)
D4 D3 Clk D2
D1 D0
(LSB)
Power
Supply
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 2/14
Module Variants
In addition to the DAC itself, the power supplies, USB cable and heat sink are complementary parts of
each delivery. It is recommended to use the DAC only with the delivered power supply module. The
heat sink can be removed by the customer. In this case it is required to provide other cooling
measures to ensure that the maximum case temperature specified on page 6 will not be exceeded.
SHF 614 A
With Option Case the SHF 614 A DAC module, the power supplies, cooling measures and the MiniSMP to 1.85 mm panel adaptors are housed in a small benchtop case that can be easily embedded in
the customer’s test environment.
SHF 614 A – incl. Opt. Case
1
1
The cables are not part of the delivery and must be ordered separately
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 3/14
Ease of Use
The easy to use software package, SHF 600 Series Control is the most convenient way to control the DAC.
The software reads the individual calibration tables of the DAC and sets the contribution of the bias
voltages accordingly. The amplitude of the individual eye openings can be set and is displayed in the
graphical user interface (GUI) as well as the input threshold level for the DC-coupled data inputs. This
enables the user to generate a perfect signal just by a few intuitive clicks. The control software for other
operating systems is available on request.
Fig. 2: “SHF 600 Series Control” – GUI
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 4/14
Absolute Maximum Ratings
Parameter
Unit
Symbol
Min.
Typ.
Max.
Comment
Data Input Voltage
mV
Vdata in
900
Peak-to-Peak
Clock Input Voltage
mV
Vclk in
900
Peak-to-Peak
External DC Voltage on
RF Clock Input Port
V
VDCin
-10
+10
AC coupled input
External DC Voltage on
RF Data Input Ports
V
VDCin
-0.5
0
DC coupled inputs
External DC Voltage on
RF Output Ports
V
VDCout
-10
+10
AC coupled outputs
DC Supply Voltage
V
Vcc
Unit
Symbol
Min. Input Data Rate
Gbps
Rin,min
Max. Input Data Rate
Gbps
Rin,max
60
mV
Vdata in
300
800
V
VDCin
-0.5
0
Min. Clock Input Frequency
GHz
fin,min
Max. Clock Input Frequency
GHz
fin,max
60
Clock Input Voltage
mV
Vclk in
300
800
Peak-to-Peak;
500 mV recommended
V
VDCin
-10
+10
AC coupled input
Input Parameters
13.0
Specifications
Parameter
Min.
Typ.
Max.
Comment
Input Parameters
Data Input Voltage
External DC Voltage on
RF Data Input Ports
External DC Voltage on
RF Clock Input Port
1
Eye Amplitude;
500 mV recommended
DC coupled inputs
1
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 5/14
Parameter
Unit
Symbol
Min. Output Data Rate
GBaud
Rout,min
Max. Output Data Rate
GBaud
Rout,max
Min.
Typ.
Max.
Comment
Output Parameters
Output Voltage
mV
Vout
Rise / Fall Time
ps
tr / tf
GHz
BW
ps
tskew
Equivalent Output Bandwidth
Differential Output Skew
1
60
1200
1386
8.2
22
Eye Amplitude;
Single ended;
Full scale;
Adjustable up to -6 dB
 see page 7
10
20%...80%;
2
deconvolved
Derived from Rise Time
3
using formula ;
-3 dB bandwidth
27
±1
±2
+12
+12.5
Power Requirements (without Option Case)
Supply Voltage
V
Vc
Supply Current
mA
Ic
1150
Power Dissipation
W
Pd
13.8
+11.5
2.1 mm DC Power Jack
@ VC = +12V
Power Requirements (with Option Case)
Supply Voltage
V
Vc
Supply Current
mA
Power Dissipation
+11.5
+12
+12.5
Ic
1350
1450
W
Pd
16.2
17.4
°C
Tcase
2.1 mm DC Power Jack
@ VC = +12V
Conditions
Module Temperature
4
10
45
without Option Case
2
Calculation based on typical rise / fall times from oscilloscope data sheet:   = √(  )2 − (  )2 = √( . )2 − (3.68 )2
3
Calculation based on formula:  =
4
0,22

tr / tf of the output data signal can be slightly decreased by applying additional cooling measures like heat sinks or cooling fans.
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 6/14
Typical Output Amplitudes
Below mentioned values assume no attenuation to be set in the control software. The output amplitude
of the DAC can be reduced by 0 to 6 dB by making the appropriate setting in the control software.
Input D5
Input D4
Input D3
Input D2
Input D1
Input D0
Typical Output
Amplitude [mV]
-
-
-
-
-
On
22
-
-
-
-
On
-
44
-
-
-
On
-
-
88
-
-
On
-
-
-
176
-
On
-
-
-
-
352
On
-
-
-
-
-
704
The typical output amplitude of a multilevel signal can be calculated by accumulating the typical output
amplitudes of all applied input ports of the DAC as shown in the table above. Thus the full scale output
swing (all inputs active) accumulates as follows:
On
On
On
On
On
On
1386
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 7/14
Typical Output Eye Diagrams
31
The measurements below had been performed using a SHF 12104 A Bit Pattern Generator (PRBS 2 1) and a Tektronix DSA 8300 Digital Serial Analyzer (DSA) with Phase Reference Module (82A04B60G) and 70 GHz Sampling Module (80E11). The outputs of the DAC module had been connected
directly to the DSA input with a 10 dB attenuator.
4-Level Output Signal Measurement
Out @ 64 GBaud
Out @ 60 GBaud
Out @ 56 GBaud
Out @ 43 GBaud
Out @ 32 GBaud
Out @ 10 GBaud
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 8/14
8-Level Output Signal Measurement
Out @ 60 GBaud
Out @ 56 GBaud
Out @ 43 GBaud
Out @ 32 GBaud
Out @ 10 GBaud
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 9/14
16-Level Output Signal Measurement
Out @ 43 GBaud
Out @ 32 GBaud
Out @ 20 GBaud
Out @ 10 GBaud
32-Level Output Signal Measurement
Out @ 10 GBaud
Out @ 2 GBaud
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 10/14
Arbitrary Waveform Generation (4-Bit Mode)
Sine @ 60 GBaud
Saw @ 60 GBaud
Triangle @ 60 GBaud
Stepped Eye @ 60 GBaud
“SHF”- writing @ 60 GBaud
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 11/14
Outline Drawing - Module
Power LED
4x M2,5x5mm
Power Supply
Control
4
39
4
5
3
6
1
3
1
2
94
3x3.6
36.6
53.2
62.6
1.85mm (V) female
GND
4
black
D0
MiniSMP (GPPO) Male
5
grey
Vee
D1
MiniSMP (GPPO) Male
6
pink
GND
D2
MiniSMP (GPPO) Male
D3
MiniSMP (GPPO) Male
D4
MiniSMP (GPPO) Male
Pin
Colour
D5
MiniSMP (GPPO) Male
1
brown
SCL
Clk
MiniSMP (GPPO) Male
3
blue
GND
Clk
MiniSMP (GPPO) Male
4
black
SDA
Control (I2C-Bus)
All dimensions in mm.
Designation
CTRL
GND
Out
blue
D145
3
D2
D1
D0
nc
1.85mm (V) female
Out
Vcc
Out
Clk
Clk
white
6-Bit DAC
2
Power
Supply
Vee
Connector
Communication
Technologies AG
Voltage
brown
SHF
Colour
1
45.2
Pin
Port
Out
3x3.6
56.8
46.8
Power Supply
SHF 614 A
12.4
45.2
nc
D5
D4
D3
6
6.3
6.4
21
12.5
3.6
23
87
100
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 12/14
Outline Drawing – Module with Heat Sink
Power LED
Out
Out
Power Supply
Control
4
4
5
3
6
1
3
1
2
Power Supply
Pin
Colour
Voltage
1
brown
Vee
Power
Supply
nc
D5
D4
D3
Clk
Clk
D2
D1
D0
nc
CTRL
SHF
Out
Out
Communication
Technologies AG
6-Bit DAC
D145
SHF 614 A
Port
Connector
2
white
Vcc
Out
1.85mm (V) female
3
blue
GND
1.85mm (V) female
GND
Out
4
black
D0
MiniSMP (GPPO) Male
5
grey
Vee
D1
MiniSMP (GPPO) Male
6
pink
GND
D2
MiniSMP (GPPO) Male
D3
MiniSMP (GPPO) Male
D4
MiniSMP (GPPO) Male
Pin
Colour
D5
MiniSMP (GPPO) Male
1
brown
SCL
Clk
MiniSMP (GPPO) Male
3
blue
GND
Clk
MiniSMP (GPPO) Male
4
black
SDA
Control (I2C-Bus)
Designation
43.2
53.2
121
All dimensions in mm.
3x3.6 3.6 3x3.6
13
26.6
43.2
52.6
SHF
14.7
D3
D4
D5
nc
Clk
Clk
Power Supply
nc
D0
D1
D2
14.6
8.5
CTRL
Communication
Technologies AG
SHF 614 A
D145
6-Bit DAC
12.4
6
45.2
77
100
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 13/14
50.8
Outline Drawing – SHF 614 A with Option Case
221.4
d
6 x 15mm
15
28.6
3
5 6
7 8
9
177
4
7.2
55.4
2
1
8.9
85.2
10
28.5
c
b
a
Pos.
1
Designation
Data Out
Connector
1.85mm (V) Female
Pos.
a
Designation
GND
2
3
4
Data Out
Clock In
D0
1.85mm (V) Female
1.85mm (V) Female
1.85mm (V) Female
b
c
d
Power Supply
USB
GND
5
6
7
8
D1
D2
D3
D4
1.85mm (V) Female
1.85mm (V) Female
1.85mm (V) Female
1.85mm (V) Female
9
D5
1.85mm (V) Female
SHF reserves the right to change specifications and design without notice - SHF 614 A - V002 – November 13, 2015 Page 14/14