Semiconductor Components Industries, LLC, 2003

March, 2003 - Rev. 0

Publication Order Number:

NBSG86ABAEVB/D

NBSG86ABAEVB

Evaluation Board Manual
for NBSG86A

DESCRIPTION

This document describes the NBSG86A evaluation board

and the appropriate lab test setups. It should be used in
conjunction with the device data sheet, which includes
specifications and a full description of device operation.

The board is used to evaluate the NBSG86A

GigaComm

differential Smart Gate multi-function logic

gate, which can be configured as an AND/NAND,
OR/NOR,

XOR/XNOR, or 2:1 MUX. The OLS input of the

NBSG86A is used to program the peaktopeak output
amplitude between 0 and 800 mV in five discrete steps.

The board is implemented in two layers and provides a

high bandwidth 50

W controlled impedance environment for

higher performance. The first layer or primary trace layer is
5 mils thick Rogers RO6002 material, which is engineered
to have equal electrical length on all signal traces from the
NBSG86A device to the sense output. The second layer is
32 mils thick copper ground plane.

For standard lab setup and test, a split (dual) power supply

is required enabling the 50

W impedance from the scope to

be used as termination of the ECL signals, where V

is the

system ground (V

= 2.0 V, V

= V

- 2.0 V and V

is -0.5 V or -1.3 V, see Setup 1).

What measurements can you expect to make?

The following measurements can be performed in the

singleended (Note 1) or differential mode of operation:

Frequency Performance

Output Amplitude (V

)

Output Rise and Fall Time

Output Skew

Eye pattern generation

Jitter

IHCMR

(Input High Common Mode Range)

NOTE:
1. S i n g l e - e n d e d m e a s u r e m e n t s c a n o n l y b e m a d e a t

- V

= 3.3 V using this board setup.

Figure 1. NBSG86A Evaluation Board

EVALUATION BOARD MANUAL

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Setup for Time Domain Measurements

Table 1. Basic Equipment Needed

Description

Example Equipment (Note 1)

Qty.

Power Supply with 2 Outputs

HP6624A

Oscilloscope

TDS8000 with 80E01 Sampling Head (Note 2)

Differential Signal Generator

HP 8133A, Advantest D3186

Matched High Speed Cables with SMA Connectors

Storm, Semflex

Power Supply Cables with Clips

3 / 4 (Note 3)

1. This equipment was used to obtain the measurements included in this document.
2. The 50 GHz sample module was used in order to obtain accurate and repeatable rise, fall, and jitter measurements.
3. Additional power supply cable with clip is needed when output level select (OLS) tested (see device data sheet).

AND/NAND Function Setup

OUT1

Channel 1

Channel 2

OUT1

TRIGGER

Amplitude = 400 mV
Offset = 660 mV

Signal Generator

SEL

= 2.0 V

OLS

Oscilloscope

= -1.3 V (3.3 V op)

= -0.5 V (2.5 V op)

= 0 V

GND

Figure 2. NBSG86A Board Setup - Time Domain (AND/NAND Function)

OUT

OLS*

= 2.0 V

= 0 V

*See NBSG86A data sheet pg 2.

Connect Power

Step 1:

1a. Connect the following supplies to the evaluation board via surface mount clips.

Power Supply Summary Table

3.3

V Setup

2.5 V Setup

= 2.0 V

= GND

= -1.3 V

= -0. 5V

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AND/NAND Function Setup (continued)

Connect the Inputs

Step 2:

For Differential Mode (3.3 V and 2.5 V operation)

2a: Connect the differential outputs of the generator to the differential inputs of the device
(D1/D1 and SEL/SEL).
2b: Connect the DO input to V

2c: Connect the DO input to V

2d: Connect the generator trigger to the oscilloscope trigger.

For Single-Ended Mode (3.3 V operation only)

2a: Connect an AC-coupled output of the generator to the desired differential input of the
device.
2b: Connect the unused differential input of the device to V

(GND) through a 50

W resis-

tor.
2c: Connect the DO input to V

2d: Connect the DO input to V

2e: Connect the generator trigger to the oscilloscope trigger.

All Function Setups

Connect OLS (Output Level Select) to the required voltage to obtain desired output ampli-
tude. Refer to the NBSG86A device data sheet page 2 OLS voltage table.

Setup Input Signal

Step 3:

3a: Set the signal generator amplitude to 400 mV. Note that the signal generator amplitude
can vary from 75 mV to 900 mV to produce a 400 mV DUT output.

3b: Set the signal generator offset to 660 mV (the center of a nominal RSECL output). Note
that the V

IHCMR

(Input High Voltage Common Mode Range) allows the signal generator

offset to vary as long as V

is within the V

IHCMR

range. Refer to the device data sheet for

further information.

3c: Set the generator output for a square wave clock signal with a 50% duty cycle, or for a
PRBS data signal.

Connect Output Signals

Step 4:

4a: Connect the outputs of the evaluation board (Q, Q) to the oscilloscope. The
oscilloscope sampling head must have internal 50

W termination to ground.

NOTE:

Where a single output is being used, the unconnected output for the pair

must be terminated to

through a 50

resistor for best operation. Unused pairs may be left unconnected. Since

= 0 V, a standard 50

SMA termination is recommended.

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OR/NOR Function Setup

Figure 3. NBSG86A Board Setup - Time Domain (OR/NOR Function)

OUT

Channel 1

Channel 2

OUT

TRIGGER

Amplitude = 400 mV
Offset = 660 mV

Signal Generator

SEL

= 2.0 V

OLS

Oscilloscope

= -1.3 V (3.3 V op)

= -0.5 V (2.5 V op)

= 0 V

GND

OLS*

= 2.0 V

OUT1

= 0 V

*See NBSG86A data sheet pg 2.

Connect Power

Step 1:

1a: Connect the following supplies to the evaluation board via surface mount clips.

Power Supply Summary Table

3.3

V Setup

2.5 V Setup

= 2.0 V

= GND

= -1.3 V

= -0.5 V

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OR/NOR Function Setup (continued)

Connect the Inputs

Step 2:

For Differential Mode (3.3 V and 2.5 V operation)

2a: Connect the differential outputs of the generator to the differential inputs of the device
(D0/D0 and SEL/SEL).
2a: Connect the D1 input to V

2b: Connect the D1 input to V

2e: Connect the generator trigger to the oscilloscope trigger.

For Single-Ended Mode (3.3 V operation only)

2a: Connect an AC-coupled output of the generator to the desired differential input of the
device.
2b: Connect the unused differential input of the device to V

(GND) through a 50

W resis-

tor.
2c: Connect the D1 input to V

2d: Connect the D1 input to V

2e: Connect the generator trigger to the oscilloscope trigger.

All Function Setups

Connect OLS (Output Level Select) to the required voltage to obtain desired output
amplitude. Refer to the NBSG86A device data sheet page 2 OLS voltage table.

Setup Input Signal

Step 3:

3a: Set the signal generator amplitude to 400 mV. Note that the signal generator amplitude
can vary from 75 mV to 900 mV to produce a 400 mV DUT output.

3b: Set the signal generator offset to 660 mV (the center of a nominal RSECL output). Note
that the V

IHCMR

(Input High Voltage Common Mode Range) allows the signal generator

offset to vary as long as V

is within the V

IHCMR

range. Refer to the device data sheet for

further information.

3c: Set the generator output for a square wave clock signal with a 50% duty cycle, or for a
PRBS data signal.

Connect Output Signals

Step 4:

4a: Connect the outputs of the evaluation board (Q, Q) to the oscilloscope. The oscilloscope
sampling head must have internal 50

W termination to ground.

NOTE:

Where a single output is being used, the unconnected output for the pair

must be terminated to

through a 50

resistor for best operation. Unused pairs may be left unconnected. Since

= 0 V, a standard 50

SMA termination is recommended.

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XOR/XNOR Function Setup

Figure 4. NBSG86A Board Setup - Time Domain (XOR/XNOR Function)

Channel 1

Channel 2

TRIGGER

Amplitude = 400 mV
Offset = 660 mV

Signal Generator

SEL

= 2.0 V

OLS

Oscilloscope

= -1.3 V (3.3 V op)

= -0.5 V (2.5 V op)

= 0 V

GND

OLS*

OUT

OUT1

*See NBSG86A data sheet pg 2.

Connect Power

Step 1:

1a: Connect the following supplies to the evaluation board via surface mount clips.

Power Supply Summary Table

3.3

V Setup

2.5 V Setup

= 2.0 V

= GND

= -1.3 V

= -0.5 V

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XOR/XNOR Function Setup (continued)

Connect the Inputs

Step 2:

For Differential Mode (3.3 V and 2.5 V operation)

2a: Connect the differential outputs of the generator to the differential inputs of the device
(OUT OUT to SEL/SEL; OUT1/OUT1 to DO&D1/D0&D1 respectively).
Step 2e: Connect the generator trigger to the oscilloscope trigger.

For Single-Ended Mode (3.3 V operation only)

2a: Connect an AC-coupled output of the generator to the desired differential input of the
device.
2b: Connect the unused differential input of the device to V

(GND) through a

W resistor.

2e: Connect the generator trigger to the oscilloscope trigger.

All Function Setups

Connect OLS (Output Level Select) to the required voltage to obtain desired output ampli-
tude. Refer to the NBSG86A device data sheet page 2 OLS voltage table.

Setup Input Signal

Step 3:

3a: Set the signal generator amplitude to 400 mV. Note that the signal generator amplitude
can vary from 75 mV to 900 mV to produce a 400 mV DUT output.

3b: Set the signal generator offset to 660 mV (the center of a nominal RSECL output). Note
that the V

IHCMR

(Input High Voltage Common Mode Range) allows the signal generator

offset to vary as long as V

is within the V

IHCMR

range. Refer to the device data sheet for

further information.

3c: Set the generator output for a square wave clock signal with a 50% duty cycle, or for a
PRBS data signal.

Connect Output Signals

Step 4:

4a: Connect the outputs of the evaluation board (Q, Q) to the oscilloscope. The oscilloscope
sampling head must have internal 50

W termination to ground.

NOTE:

Where a single output is being used, the unconnected output for the pair

must be terminated to

through a 50

resistor for best operation. Unused pairs may be left unconnected. Since

= 0 V, a standard 50

SMA termination is recommended.

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2:1 MUX Function Setup

Figure 5. NBSG86A Board Setup - Time Domain (2:1 MUX Function)

OUT

Channel 1

Channel 2

OUT

TRIGGER

Amplitude = 400 mV
Offset = 660 mV

Signal Generator

SEL

= 2.0 V

OLS*

Oscilloscope

= -1.3 V (3.3 V op)

= -0.5 V (2.5 V op)

= 0 V

GND

= 2.0 V

= 0 V

= 2.0 V

*See NBSG86A data sheet pg 2.

OLS

Connect Power

Step 1:

1a: Connect the following supplies to the evaluation board via surface mount clips.

Power Supply Summary Table

3.3

V Setup

2.5

V Setup

= 2.0 V

= GND

= -1.3 V

= -0.5

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2:1 MUX Function Setup (continued)

Connect the Inputs

Step 2:

For Differential Mode (3.3 V and 2.5 V operation)

2a: Connect the differential outputs of the generator to the differential inputs of the device
(D1/D1).
2b: Connect the D0 input to V

and the D0 input to V

2c: Connect the SEL input to V

and the SEL input to V

2d: Connect the generator trigger to the oscilloscope trigger.

For Single-Ended Mode (3.3 V operation only)

2a: Connect an AC-coupled output of the generator to the desired differential input of the
device.
2b: Connect the unused differential input of the device to V

(GND) through a 50

resistor.
2c: Connect the D0 input to V

and the D0 input to V

2d: Connect the SEL input to V

and the SEL input to V

2e: Connect the generator trigger to the oscilloscope trigger.

All Function Setups

Connect OLS (Output Level Select) to the required voltage to obtain desired output
amplitude. Refer to the NBSG86A device data sheet page 2 OLS voltage table.

Setup Input Signal

Step 3:

3a: Set the signal generator amplitude to 400 mV. Note that the signal generator amplitude
can vary from 75 mV to 900 mV to produce a 400 mV DUT output.

3b: Set the signal generator offset to 660 mV (the center of a nominal RSECL output). Note
that the V

IHCMR

(Input High Voltage Common Mode Range) allows the signal generator

offset to vary as long as V

is within the V

IHCMR

range. Refer to the device data sheet for

further information.

3c: Set the generator output for a square wave clock signal with a 50% duty cycle, or for a
PRBS data signal.

Connect Output Signals

Step 4:

4a: Connect the outputs of the evaluation board (Q, Q) to the oscilloscope. The oscilloscope
sampling head must have internal 50

W termination to ground.

NOTE:

Where a single output is being used, the unconnected output for the pair

must be terminated to

through a 50

resistor for best operation. Unused pairs may be left unconnected. Since

= 0 V, a standard 50

SMA termination is recommended.

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Setup for Frequency Domain Measurements

Table 2. Basic Equipment

Description

Example Equipment (Note 4)

Qty.

Power Supply with 2 outputs

HP 6624A

Vector Network Analyzer (VNA)

R&S ZVK (10 MHz to 40 GHz)

180

Hybrid Coupler

Krytar Model #4010180

Bias Tee with 50

Resistor Termination

Picosecond Model #5542-219

Matched high speed cables with SMA connectors

Storm, Semflex

Power Supply cables with clips

4. Equipment used to generate example measurements within this document.

Setup

Connect Power

Step 1:

1a: Three power levels must be provided to the board for V

, V

, and GND via the

surface mount clips. Using the split power supply mode, GND = V

= V

2.0 V.

Power Supply Connections

3.3

V Setup

= 2.0 V

= GND

= -1.3 V

NOTE:

For frequency domain measurements, 2.5 V power supply is not recommended because additional
equipment (bias tee, etc.) is needed for proper operation. The input signal has to be properly offset

to meet V

IHCMR

range of the device

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Setup Test Configurations For Differential Operation

Small Signal Setup

Step 2:

Input Setup

2a: Calibrate VNA from 1.0 GHz to 12 GHz.
2b: Set input level to 35 dBm at the output of the 180

Hybrid coupler (input of the DUT).

Step 3:

Output Setup

3a: Set display to measure S21 and record data.

Large Signal Setup

Step 2:

Input Setup

2a: Calibrate VNA from 1 0 GHz to 12 GHz

2a: Calibrate VNA from 1.0 GHz to 12 GHz.
2b: Set input levels to -2.0 dBm (500 mV) at the input of DUT.

Step 3:

Output Setup

3a: Set display to measure S21 and record data.

SEL

= 2.0 V

= -1.3 V (3.3 V op)

= 0 V

Rohde & Schwartz

Vector Network Analyzer

Figure 6. NBSG86A Board Setup - Frequency Domain (Differential 2:1 MUX Function - D1 Selected)

180

Hybrid

Coupler

GND

Bias T

GND

PORT 2

PORT 1

= 2.0 V

= 0 V

= 2.0 V

GND

OLS*

*See NBSG86A data sheet pg 2.

OLS

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Setup Test Configurations For Single-Ended Operation

Single-Ended Mode Small Signal

Step 2:

Input Setup

2a: Calibrate VNA from 1.0 GHz to 12 GHz.
2b: Set input level to 35 dBm at the input of DUT.

Step 3:

Output Setup

3a: Set display to measure S21 and record data.

Single-Ended Mode Large Signal

Step 2:

Input Setup

2a: Calibrate VNA from 1.0 GHz to 12 GHz.
2b: Set input levels to +2 dBm (500 mV) at the input of DUT.

Step 3:

Output Setup

3a: Set display to measure S21 and record data.

SEL

= 2.0 V

= -1.3 V (3.3 V op)

= 0 V

Rohde & Schwartz

Vector Network Analyzer

Figure 7. NBSG86A Board Setup - Frequency Domain (Differential 2:1 MUX Function - D1 Selected)

GND

Bias T

GND

PORT 2

PORT 1

= 2.0 V

= 0 V

= 2.0 V

GND

OLS*

*See NBSG86A data sheet pg 2.

OLS

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More Information About Evaluation Board

Design Considerations for >10 GHz operation

While the NBSG86A is specified to operate at 12 GHz,

this evaluation board is designed to support operating
frequencies up to 20 GHz.

The following considerations played a key role to ensure

this evaluation board achieves high-end microwave
performance:

Optimal SMA connector launch

Minimal insertion loss and signal dispersion

Accurate Transmission line matching (50

Distributed effects while bypassing and noise filtering

Open Circuit Stub

NBSG86A

VTD1

VTD0

(

/2 @ 10 GHz)

(

/4 @ 10 GHz)

Surface Mount Clip

SURFACE MOUNT CLIP

Rosenberger SMA

Figure 8. Evaluation Board Schematic

VTD1

Rosenberger SMA

VTD0

Rosenberger SMA

(

/4 @ 10 GHz)

Surface Mount Clip

Rosenberger SMA

SEL

VTSEL

OLS

(

/2 @ 10 GHz)

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Table 3. Table 3. Parts List

Part No

Description

Manufacturer

WEB address

NBSG86ABA

SiGe Differential Smart Gate with Output Level Select

ON Semiconductor

http://www.onsemi.com

32K243-40ME3

Gold plated connector

Rosenberger

http://www.rosenberger.de

CO6BLBB2X5UX

2 MHz 30 GHz capacitor

Dielectric Laboratories

http://www.dilabs.com

Table 4. Board Material

Material

Thickness

Rogers 6002

5.0 mil

Copper Plating

32 mil

Figure 9. Board Stack-up

12.5 mil

Dielectric (5.0 mil)

Thick Copper Base

1.37 mil

Figure 10. Layout Mask for NBSG86A

Figure 11. Insertion Loss

1 dB/

5 dB

START 1 GHz

STOP 12 GHz

1 GHz/

0 dB

11 GHz

PIN 1

NOTE:

The insertion loss curve can be used to calibrate out board loss if testing
under small signal conditions.

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RMS JITTER

FREQUENCY (GHz)

OUTPUT AMPLITUDE (mV)

JITTER

OUT

ps (RMS)

100

200

300

400

500

600

700

800

900

OLS = V

- 0.4 V

*OLS = V

OLS = V

- 0.8 V

OLS = FLOAT

Figure 12. V

OUT

/Jitter vs. Frequency (2:1 MUX Function)

- V

= 3.3 V @ 25

C; Repetitive 1010 Input Data Pattern)

-40

-20

3.3 V

TEMPERATURE (

TIME (ps)

2.5 V

Figure 13. tr. vs. Temperature and Power Supply

Figure 14. tr. vs. Temperature and Power Supply

TIME

(ps)

-40

-20

TEMPERATURE (

3.3 V

2.5 V

EXAMPLE TIME DOMAIN MEASUREMENT RESULTS

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Figure 15. NBSG86A: Small Signal Gain (S21)

D0/D0 - Q0/Q0

Figure 16. NBSG86A: Small Signal Gain (S21)

D1/D1 - Q0/Q0

Figure 17. NBSG86A: Large Signal Gain (S21)

D0/D0 - Q0/Q0

Figure 18. NBSG86A: Large Signal Gain (S21)

D1/D1 - Q0/Q0

START 10 MHz

STOP 12 GHz

1 GHz/

50 dB

10 dB

-50 dB

START 1 GHz

STOP 12 GHz

1 GHz/

50 dB

10 dB

-50 dB

START 1 GHz

STOP 12 GHz

1 GHz/

50 dB

10 dB

-50 dB

START 1 GHz

STOP 12 GHz

1 GHz/

50 dB

10 dB

-50 dB

0 dB

EXAMPLE FREQUENCY DOMAIN MEASUREMENT RESULTS

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ADDITIONAL INFORMATION

www.onsemi.com

In all cases, the most up-to-date information can be found
on our website.

Sample orders for devices and boards

New Product updates

Literature download/order

IBIS and Spice models

References

AND8077/D, Application Note, GigaComm

E (SiGe)

SPICE Modeling Kit

AND8075/D, Application Note, Board Mounting
Considerations for the FCBGA Packages

BRD8017/D, Brochure, Clock and Data Management
Solutions

NBSG86A/D, Data Sheet, 2.5V/3.3V SiGe Differential
Smart Gate with Output Level Select

ORDERING INFORMATION

Orderable Part No

Description

Package

Shipping

NBSG86ABA

SiGe Differential Smart Gate with Output Level Select

4X4 mm

FCBGA/16

100 Units/Tray

NBSG86ABAR2

SiGe Differential Smart Gate with Output Level Select

4X4 mm

FCBGA/16

500 Units/Reel

NBSG86ABAEVB

NBSG86A Evaluation Board

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changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all
liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be
validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death
may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.

PUBLICATION ORDERING INFORMATION

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Phone: 81-3-5773-3850

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For additional information, please contact your local
Sales Representative.

NBSG86ABAEVB/D

GigaComm is a trademark of Semiconductor Components Industries, LLC.

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