1.1ScopeThe ADC EV10AS150A-EB Evaluation Kit is designed to facilitate the evaluation and
characterization of the different versions of EV10AS150A ADC with 1:2/4 DMUX up to
its 5 GHz full power input bandwidth.
The ADC EV10AS150A-EB Evaluation Kit includes:
The EV10AS150A with 1:2/4 DMUX Evaluation board including one version of the
EV10AS150A ADC device soldered on the board
Six SMA caps for CLK, CLKN, VIN, VINN, DRR and ASYNCRST signals
Six jumpers DMUX function settings (RS, BIST, DRTYPE, SLEEP, STAGG),
CLKTYPE jumper is not used
3-wire serial link to control ADC functionality
The user guide uses the EV10AS150A Evaluation Kit as an evaluation and demonstra-
tion platform and provides guidelines for its proper use.
1.2DescriptionThe ADC EV10AS150A Evaluation board is very straightforward as it only implements
the EV10AS150A ADC/DMUX device, SMA connectors for the sampling clock, analog
inputs and reset inputs accesses and HE14 double row 2.54 mm pitch connectors compatible with high speed acquisition system probes.
To achieve optimal performance, the ADC EV10AS150A-EB Evaluation board was
designed in a 8-metal-layer board with RO4003 200 µm and FR4 HTG epoxy dielectric
materials. The board implements the following devices:
The ADC EV10AS150A with 1:2/4 DMUX Evaluation board with one version of the
EV10AS150A ADC soldered on the board
Six SMA caps for CLK, CLKN, VIN, VINN, DRR and ASYNCRST signals
Six jumpers DMUX function settings (RS, BIST, DRTYPE, SLEEP, STAGG),
CLKTYPE jumper is not used
3-wire serial link to control ADC functionality via RS232
2.54 mm pitch connectors for the digital outputs, compatible with high speed
acquisition system probes
Banana jacks for the power supply accesses and the die junction temperature
monitoring functions (2 mm)
Potentiometers for the DMUX functions
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Introduction
The board is composed of eight metal layers for signal traces, ground and power supply
layers, and seven dielectric layers featuring low insertion loss and enhanced thermal
characteristics for operation in the high frequency domain.
The board dimensions are 220 mm x 240 mm.
The board comes fully assembled and tested, with one version of the EV10AS150A
ADC installed.
As shown in Figure 1-1, different power supplies are required:
V
V
V
V
= 5.0V analog positive power supply
CCA5
= 3.3V analog positive power supply
CCA3
= 3.3V digital positive power supply
CCD
= 2.5V digital output power supply
PLUSD
3.3V power supply for the board functions
DR
Port B
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2.1Board Structure
In order to achieve optimum full speed operation of the ADC EV10AS150A with 1:2/4
DMUX, a multilayer board structure was retained for the evaluation board. Eight copper
layers are used, respectively dedicated to the signal traces, ground planes, power supply planes and DC signals traces.
The board is made in RO4003 200 µm and FR4 HTG epoxy dielectric materials. Table
2-1 gives a detailed description of the board's structure.
Ground plane = reference plane (identical to layer 3)
Copper thickness = 40 µm
DC signals traces and Serial Interface (AVR) signals
Ground plane
CCA3
PLUSD
The board is 1.6 mm thick.
The clock, analog input, reset and digital data output signals occupy the top metal layer
while the ADC and DMUX functions are located both on the top.
The ground planes occupy layer 3, 13 and 15 (partly).
2.2Analog
Inputs/Clock
Input
Layer 5, 7, 9 and 11 are dedicated to the power supplies.
The differential active inputs (Clock, Analog) are provided by SMA connectors.
Reference: VITELEC 142-0701-8511
Special care was taken for the routing of the analog input and clock input signals for
optimum performance in the high frequency domain:
50Ω lines matched to ±0.1 mm (in length) between V
and V
IN
and between CLK
INN
and CLKN
50 mm max line length
1.27 mm pitch between the differential traces
400 µm line width
40 µm thickness
850 µm diameter hole in the ground layer below the V
, V
IN
, CLK and CLKN ball
INN
footprints
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Hardware Description
Figure 2-1. Figure 2-1.Board Layout for the Differential Analog and Clock Inputs
400 µm
e= 40µm
m
870 µ
400 µm
RO4003
Ground plane
µ1270 m
Figure 2-2. Differential Analog Inputs Implementation
2.3Digital OutputThe digital output lines were designed with the following recommendations:
50Ω lines matched to ±0.5 mm (in length) between signal of the same differential pair
80 mm max line length
±1 mm line length difference between signals of two ports
±1.5 mm max line length difference between all signals
770 µm pitch between the differential traces
370 µm line width
40 µm thickness
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Hardware Description
Figure 2-4. Board Layout for the Differential Digital Outputs
3 7 0 µ m
e= 40µm
400 µm
370 µm
RO4003
Ground Plane
m
770 µ
200 µm
The digital outputs are compatible with LVDS standard. They are on-board 100Ω differentially terminated as described in Figure 2-5.
Figure 2-5. Differential digital Outputs Implementation
Line
50Ω
50Ω
50Ω
50Ω
Line
Line
Line
100Ω
100Ω
Di
DiN
DRN
DR
HE14 Double row 2.54 mm pitch connectors are used for the digital output data. The
upper row is connected to the signal while the lower row is connected to Ground, as
illustrated in Figure 2-6.
Figure 2-6. Differential Digital Outputs 2.54 mm Pitch Connector (Example Port A)
Signal
Ground
A0NA0AORN
…
GND A0NA0
GND GND GND GNDGND GND GND GND
AOR
A
/DR
/DRA
N
A1NAORN AORGND B0
Figure 2-7. Differential Digital Clock Outputs 2.54 Mm Pitch Connector
l
Signa
DR
DR
N
Ground
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Hardware Description
µ
2.4Reset Lines
The reset line (DRR and ASYNCRST) were designed with the following recommendations:
50Ω lines
80 mm max line length
430 µm line width
40 µm thickness
Figure 2-8. Board Layout for the Single Reset Lines
430 µm
RO4003
e=40
m
200 µm
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Hardware Description
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Section 3
Operating Characteristics
3.1IntroductionThis section describes a typical configuration for operating the evaluation board of the
ADC EV10AS150A with 1:2/4 DMUX.
The analog input signal can be entered either in differential or single ended. Refer to the
datasheet for the impact of driving analog input in single or in differential. The clock input
signal must be differentially driven.
ADC EV10AS150 clock inputs should be fed with balanced signals (use a balun or
hybrid junction to convert a single signal to a differential signal).
3.2Operating
Procedure
1.Connect the power supplies and ground accesses through the dedicated banana
jacks.
V
= 5.0V, V
CCA5
V
= 3.3V, V
CCA3
short-cable.
2.Connect the clock input signals. Use a low-phase noise high frequency
generator.
The clock input level is typically 1dBm (on 100Ω differential input). The clock frequency
can range from 500 MHz up to maximum speed.
3.Connect the analog input signal. Use a low-phase noise high frequency
generator.
The analog input full scale is 500 mV peak-to-peak (±250 mV on each single ended
input) around 0V (AC coupling). It is recommended to use the ADC with an input signal
of –1 dBFS max (to avoid saturation of the ADC).
The analog input frequency can range from DC up to 5 GHz. At 5 GHz, the ADC attenuates the input signal by 3 dB.
4.Connect the high-speed acquisition system probes to the output connectors.
The digital data are differentially terminated on-board (100Ω) however, they can be
probed either in differential or in single-ended mode.
5.Connect the DMUX function jumpers:
All instrumentation and connectors are now connected.
6.Switch on the power supplies (No specific power supplies sequencing required
during power on/off).
7.Turn on the RF clock generator.
8.Turn on the RF signal generator.
= 3.3V, V
CCA3
= 3.3V and 3.3V have separated planes but can be reunited via a
CCD
= 3.3V, V
CCD
PLUSD
= 2.5V,
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Operating Characteristics
9.Perform an asynchronous Reset (DRR active) on the device and maintain this
Reset active.
10. Perform an asynchronous Reset ((push button) ASYNCRST active) on the
board.
11. Then, ASYNCRST inactive on the board.
12. DRR inactive on the device.
13. Started 3 Wire Serial interface (refer to Section 4)
14. Reset button allows to configure ADC (Mode 0)
3.3Electrical
Characteristics
Table 3-1. Absolute Maximum Ratings
ParameterSymbolValueUnit
Analog 5.0V Power Supply voltageV
Analog 3.3V Power Supply voltageV
Digital 3.3V Power Supply VoltageV
Output 2.5V Power Supply voltageV
Minimum Analog input peak voltage
CCA5
CCA3
CCD
PLUSD
V
IN
or V
INN
(with differential input)
Maximum Analog input peak voltage
or V
V
IN
INN
(with differential input)
Maximum difference between V
V
INN
IN
and
|V
- V
|2.0
IN
INN
(with differential input)
Minimum Analog input peak voltage
(with single ended input)
VIN with VINN = 50Ω to GND
or
VINN with VIN = 50Ω to GND
Maximum Analog input peak voltage
(with single ended input)
Maximum amplitude on V
IN
or V
INN
V
or
V
|V
with V
IN
with V
INN
IN|
or |V
= 50Ω to GND
INN
= 5 Ω to GND
IN
|(2 Vpp = +10 dBm in 50Ω)V
INN
(with single ended input)
Minimum Clock input peak voltage
or V
V
CLK
CLKN
(with differential clock)
Maximum Clock input peak voltage
or V
V
CLK
CLKN
(with differential clock)
Maximum difference between V
and V
CLKN
CLK
CLK - VCLKN
|1.5
|V
(with differential clock)
3WSI input voltageSDATA, SLDN, SCLK, RESET–0.3 to
ADC Reset VoltageDRR–0.3 to V
DMUX function input voltageRS, DRTYPE, SLEEP, STAGG, BIST–0.3 to V
DMUX Asynchronous ResetASYNCRST–0.3 to V
GND to 6.0V
GND to 3.6V
GND to 3.6V
GND to 3.0V
2.0V
4.0V
(4 Vpp = +13 dBm in 100 Ω)
2.0V
4.0V
1.5V
4.0V
(3 Vpp)
+ 0.3V
VCCA3
+ 0.3V
CCA3
+ 0.3V
CCD
+ 0.3V
CCD
V
V
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Operating Characteristics
Table 3-1. Absolute Maximum Ratings (Continued)
DMUX Control VoltageCLKDACTRL–0.3 to V
Maximum input voltage on DIODEDIODE ADC700mV
Maximum input current on DIODEDIODE ADC1mA
Max Junction TemperatureT
J
135°C
Storage temperatureTstg–55 to 150°C
ESD protection (HBM)≥500 on ADC inputs
500 on DMUX outputs
Note:Absolute maximum ratings are limiting values (referenced to GND = 0V), to be applied individually, while other parameters are
within specified operating conditions. Long exposure to maximum rating may affect device reliability.
All integrated circuits should be handled with appropriate care to avoid damages due to ESD. Damage caused by inappropriate
handling or storage could range from performance degradation to complete failure, including reliability degradation.
+ 0.3V
CCD
V
Table 3-2. Electrical Characteristics for Supplies
Test
Parameter
POWER REQUIREMENTS
Power Supply voltages
Analog 5.0V
Analog 3.3V
Digital 3.3V
Output 2.5V
Power Supply current in 1:2 DMUX
Analog V
Analog V
Digital V
Output V
CCA5
CCA3
CCD
PLUSD
= 5.0V
= 3.3V
= 3.3V
= 2.5V
Power Supply current in 1:4 DMUX
Analog V
Analog V
Digital V
Output V
CCA5
CCA3
CCD
PLUSD
= 5.0V
= 3.3V
= 3.3V
= 2.5V
Power Supply current in NAP and SLEEP mode
Analog V
Analog V
Digital V
Output V
CCA5
CCA3
CCD
PLUSD
= 5.0V
= 3.3V
= 3.3V
= 2.5V
Power dissipation
- 1:2 DMUX
- 1:4 DMUX
- NAP & SLEEP mode (1:4 or 1:2)
Level
1
1
1
1
1P
SymbolMinTypMaxUnit
V
CCA5
V
CCA3
V
CCD
V
PLUSD
I
VCCA5
I
VCCA3
I
VCCD
I
VPLUSD
I
VCCA5
I
VCCA3
I
VCCD
I
VPLUSD
I
VCCA5
I
VCCA3
I
VCCD
I
VPLUSD
D
4.85
3.15
3.15
2.4
5.0
3.3
3.3
2.5
160
775
400
420
160
775
450
450
140
590
140
410
6.2
6.4
4.4
5.15
3.45
3.45
2.6
200
960
500
610
200
960
580
650
190
870
180
560
7.6
8.0
6.0
V
V
V
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
W
W
W
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Operating Characteristics
3.4Digital Output
Coding
Table 3-3. Digital Output Coding
Differential
Analog InputVoltage LevelDigital Output
Natural Binary
MSB……….LSB OR
> 250.25 mV>Top end of full scale + ½ LSB1 1 1 1 1 1 1 1 1 1 10 1 1 1 1 1 1 1 1 1 11 0 0 0 0 0 0 0 0 0 1
Now you can launch the ADC10Bit series software from its icon; the following screen will
be displayed:
Figure 4-8. ADC EV10AS150A User Interface Window
Figure 4-9. ADC10-bit User Interface Hardware Implementation
Evaluation
Board
ADC EV10AS150A
PC
Software
Serial port
Use a RS 232 port to send data to ADC.
Connect the crossed DB9 9 (F/F) cable between your PC and your evaluation board.
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Software Tools
Figure 4-10. Crossed RS232 Cable
DB 9
Female
2
3
5
2
DB 9
Female
3
5
Serial Port Configuration:
Bit rate: 19200
Data coding: 8 bit
1 start bit, 1 Stop bit
No parity check
4.3.1Installation SoftwareAt startup, the application automatically checks all RS 232 ports available on the computer and tries to find the evaluation board on them.
Figure 4-11. ADC EV10AS150A User Interface
The Port menu shows all available ports on your computer. The port currently used has
a check mark on its left. By clicking another port item, the application will try to connect
to an evaluation board via the selected port. If a board is successfully detected on the
new port, the LED is green (or orange depending on the serial interface switch) and the
new port gets the check mark. If the application is not able to find a board on this port,
an error message is displayed and the LED turns to red.
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4.3.2Troubleshooting
Software Tools
If the ADC EV10AS150A evaluation board is not connected or not powered, a red LED
appears on the right of the Reset button and the application is grayed
Figure 4-12. ADC EV10AS150A User Interface
Check the connection to the PC and restart the application.
If the serial interface is not active the LED appears in orange and the application is
grayed too.
Figure 4-13. ADC EV10AS150A User Interface
Turn ON the switch on the demo board, the application should become available and
the LED turns to green.
Troubleshooting:
– Check your rights to write in the directory
– Check for the available disk space
– Check that at least one RS232 serial port is free and properly configured.
– Check that the DB9 connector is properly inserted
– Check that all supplies are ON
– Check that the serial mode is active (green LED ON)
4.4Operating Modes
4.4.1OverviewThe software provides a graphical user interface to configure the ADC.
Push buttons, popup menus and capture windows allows playing with:
Control Mode,
Switch analog and Switch clock
Standby
Gain
Offset
DDA
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Software Tools
Always click on Apply to validate any command
Each setting must be validated in its own tab.
Clicking on Cancel will restore last settings sent with Apply button.
Reset button allows to configure ADC (Mode 0)
4.4.2Control ModeThe control mode allows controlling the NAP mode and Data Ready Reset Inactive
mode.
4.4.2.1NAP ModeNAP mode configurable Off or On
4.4.2.2Data Ready Reset
Inactive on Level
Data Ready Reset is inactive on High level or on Low level
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4.4.3ADC Output Data
Format (BinaryGray)
Software Tools
ADC Output Data Format: Binary
ADC Output Data Format: Gray
Note:In this mode, MSB complement is not available.
4.4.4ADC Output Data
Format (MSB
Complement)
ADC Output Data Format: MSB complement Off
ADC Output Data Format: MSB complement On
Note:Mode MSB complement is available if ADC output data format is binary
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Software Tools
4.4.5ADC Gain AdjustADC Gain adjustment is from –0.5 to 0.5 dB.
4.4.6ADC Offset Adjust
ADC Offset adjustment is from –20 mV to 20 mV.
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Software Tools
4.4.7Sampling Delay
Adjust
Sampling Delay Adjustment Off
– Sampling delay adjustment On
– Coarse adjustment: 0 to 90 ps by step of 30 ps
– Fine adjustment: 0 to 30 ps by step of 0.118 ps
– Maximum delay: 120 ps
4.4.8Advanced Setting:
Internal logic clock adjustment 0 to 30 ps on Lsb register
Logic Clock
Adjustment
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Software Tools
4.4.9Clock Duty Cycle
(Track - Hold)
ADC Duty Cycle (Track-Hold): 40%-60% to 30%-70%
Note: Reset value 35%-65%
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Section 5
Application Information
5.1IntroductionFor this section, refer also to the product chapter 4 of the datasheet.
5.2Analog InputsThe analog input can be entered either single ended or differentially. Refer to the
datasheet to see the impact on dynamic performances.
It is recommended to use a filter to optimize the dynamic performance and the spectral
response of the ADC.
5.3Clock InputsThe clock inputs should be differentially driven using a balun or hybrid junction.
The clock input is AC coupled.
5.4Digital OutputsThe digital outputs (data and Data Ready) are LVDS compatible. 100Ω differential termi-
nation is provided on-board.
Figure 5-1. Differential Digital Outputs Implementation
Line
50Ω
50Ω
50Ω
50Ω
Line
Line
Line
100Ω
100Ω
Di
DiN
DRN
DR
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Application Information
5.5ADC Functions
5.5.1DRR (Data Ready
Reset)
The Data Ready Reset signal is accessed via an SMA connector.
DRR is CMOS/LVCMOS compatible:
V
= 0 (typical)
IL
V
IH
= V
CCA3
(typical)
The active level depends on the Data Ready Reset of 3WSI function (refer to section
4.4.2)
This signal acts as an internal Reset of the device. It is not mandatory for proper operation of the device. It is only used to determine exactly the first data to be sampled.
When applied, the clock outputs are Reset. The Reset pulse should last at least 3.5 ns.
An asynchronous Reset (ASYNCRST push button) should be applied while DRR is
active (high) in order to Reset properly the whole device.
In most cases (single channel application, no need to know which data will be the first
one to be sampled), this Reset can be left unused.
5.6DMUX Functions
5.6.1ASYNCRSTThe asynchronous Reset is mandatory to start the device properly. It should be applied
after power up of the device.
A push button is provided to perform this Reset and pull-up and pull-down resistors
allow to keep the ASYNCRST signal inactive.
Figure 5-2. ASYNCRST
3.3V
GND
15KΩ
4.7K
Ω
3.3V
ADC EV10AS150A
If the DRR Reset is also used, it is recommended to apply the asynchronous Reset
while the DRR Reset is active.
The first data is available at the device output after TOD + N cycles (with 4.5 ≤ N ≤ 7.5
depending on DEMUX mode).
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Application Information
5.6.2CLKDACTRLA delay cell is provided to allow the user to tune the delay between the Clock and Data
at the DMUX input. The delay is controlled via the CLKDACTRL potentiometer.
This cell allows you to delay the internal DMUX clock via the CLKDACTRL potentiometer (varying from V
/3 to (2 x V
CCD
CCD
)/3).
This pin must be biased and it is recommended to set CLKDACTRL at VCCD/3. With
this value it is normally not necessary to tune CLKDACTRL voltage over the full specified clock rate.
Figure 5-3. CLKDACTRL Potentiometer
3.3V
kΩ
10
kΩ
10
10
Ω
k
GND
ADC EV10AS150A
5.6.3RS, DRTYPE, BIST,
SLEEP, STAGG
Seven jumpers are provided for the RS, DRTYPE, BIST, SLEEP and STAGG functions.
Table 5-1 describes each function.
Table 5-1. DMUX Function Settings and Description
FunctionDescriptionJumper Settings
Ratio selection:
RS
DRTYPE
BIST
SLEEP
STAGG
- 1:2
- 1:4
Output clock mode:
- DR = data valid on each rising edge of the DR/DRN
signal
- DR/2 = data valid on both rising and falling edges of the
DR/DRN signal
Built-In Self Test:
- Active: checker board pattern available at the device
outputs
- BIST inactive: normal mode
Sleep mode
- Active: the device is in a partial standby mode
- SLEEP inactive: normal mode
Simultaneous or Staggered output mode
- STAGG active: staggered output data
- STAGG inactive: simultaneous output data
1:2: Jumper ON
1:4: Jumper OUT
DR: Jumper OUT
DR/2: Jumper ON
BIST: Jumper ON
No BIST: Jumper OUT
SLEEP: Jumper ON
SLEEP inactive: Jumper OUT
STAGG: Jumper ON
STAGG inactive: Jumper OUT
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Application Information
Figure 5-4. DMUX Functions Jumper Positions
Jumper OUTJumper ON
Jumper CLKTYPE can be placed in any position: it has no effect.
5.6.4Additional OR BitsIn simultaneous mode, the out-of-range signal of the ADC is demultiplexed by the
DMUX and output on all ports as the (AOR/DRAN, AORN/DRA), (BOR/DRBN,
BORN/DRB), (COR/DRCN, CORN/DRC) and (DOR/DRDN, DORN/DRD) signals.
These signals can be used to detect if the input of the ADC is above the full scale.
In staggered mode, these signals correspond to the output clock for each port:
DRA, DRAN for Port A (pins A6, B6)
DRB, DRBN for Port B (pins J2, H1)
DRC, DRCN for Port C (pins W5, V5)
DRD, DRDN for Port D (pins W17, V17)
5.7Diode for Die
Junction
Temperature
Monitoring
Two diodes for die junction temperature measurement are available, for maximum junction temperature monitoring (hot point measurement) of both the ADC and the DMUX.
The measurement method consists in forcing a 1 mA current into a diode mounted
transistor.
The measurement setup is described in Figure 5-5.
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Figure 5-5. ADC DIODE Measurement Setup
IGND
Application Information
Note:The 1 mA current can be supplied by a multimeter set in this specific current source
Whilst e2v has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof
and also reserves the right to change the specification of goods without notice. e2v accepts no liability beyond that set out in its standard conditions of sale
in respect of infringement of third party patents arising from the use of tubes or other devices in accordance with information contained herein.
e2v semiconductors SAS 2009
0977B–BDC–10/09
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