GENNUM EB-GS2993 User manual

Type
User manual

This manual is also suitable for

EB-GS2993
Evaluation Board User Guide
1 of 10
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
www.gennum.com
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
2 of 10
Contents
General Description..........................................................................................................................................3
Evaluation Kit Contents...................................................................................................................................3
Overview ..............................................................................................................................................................3
1. Evaluation Board User Guide....................................................................................................................4
1.1 SDI Inputs and Outputs ..................................................................................................................4
1.2 Power ....................................................................................................................................................4
1.3 Switch Settings ..................................................................................................................................5
1.4 Jumper Settings .................................................................................................................................5
1.5 Potentiometer Settings ....................................................................................................................6
1.5.1 OP1_CTL, OP2_CTL Potentiometer Settings................................................................6
1.5.2 Squelch Adjust (SQ_ADJ) Potentiometer Settings .....................................................6
1.6 LED Indicator .....................................................................................................................................7
2. Schematic.........................................................................................................................................................7
3. Board Layout...................................................................................................................................................8
4. Bill of Materials...............................................................................................................................................9
Version ECR Date Changes and / or Modifications
0 154023 April 2010 New document.
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
3 of 10
General Description
The GS2993 evaluation package is designed to accelerate the evaluation process of the
GS2993 Adaptive Cable Equalizer.
It is strongly recommended to read the GS2993 Data Sheet (Doc ID: 53966) before using
this evaluation kit.
Evaluation Kit Contents
Gennum EB-GS2993 Evaluation Board
CD containing GS2993 Collateral
Overview
The purpose of the EB-GS2993 Evaluation Board is to evaluate the GS2993 Multi-rate
Cable Equalizer. This device is designed to support SMPTE 424M, SMPTE 292M and
SMPTE 259M serial digital video signals standards, and is optimized for performance at
270Mb/s, 1.485Gb/s and 2.97Gb/s data rates.
EB-GS2993 Functional Block Diagram
SW2 GS2993
Inputs
SMA
SMA
SMA
SMA
BNC
GS2993
IRL
GS2993 Supply Connection
DDO1
DDO2
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
4 of 10
1. Evaluation Board User Guide
Figure 1-1 shows the inputs, outputs and power connections for the EB-GS2993.
Figure 1-1: GS2993 Evaluation Board (EB-GS2993)
1.1 SDI Inputs and Outputs
The GS2993 is a high-speed BiCMOS integrated circuit designed to equalize and restore
signals received over 75Ω co-axial cables. The EB-GS2993 is the evaluation board for the
GS2993. The EB-GS2993 features one 75Ω single-ended input through a BNC connector
(SDI/J4), and two pairs of 100Ω differential outputs (DDO1/J5, DDO1
/J6 and DDO2/J7,
DDO2
/J8) through SMA connectors.
1.2 Power
The EB-GS2993 features four power posts (3V3, GND, VCCO1, VCCO2). By default, the
GS2993 can be powered with a single power supply connected to 3V3. Alternatively, the
GS2993 outputs can be powered using a second and third power supply connected to
VCCO1 and VCCO2. The power configuration jumpers VCCO1_SEL and VCCO2_SEL
must be configured accordingly.
When the outputs are powered separately, the power supply can be set between 1.2V
and 3.3V.
3V3 GND
LED_EN
(JP10)
SQ_ADJ (R28)
OP1_CTL (TP7)
SDI (J4)
DDO1 (J5)
DDO1 (J6)
DDO2 (J7)
DDO2 (J8)
VCCO1 VCCO2
SW2
SQ_ADJ (TP6)
CD (D3)
AUTOSLEEP (JP2)
VCCO1_SEL (JP8)
VCCO2_SEL (JP9)
OP1_CTL (R31)
OP2_CTL (R32)
OP2_CTL (TP8)
CLI (TP9)
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
5 of 10
1.3 Switch Settings
A four-point dip switch (SW2) provides the GS2993’s input selection. The switch
positions are marked on the silkscreen, and are described in Table 1-1 below:
1.4 Jumper Settings
The jumpers on the EB-GS2993 board are described in the following tables:
Table 1-1: SW1 Settings
Switch Label Switch OFF Description Switch ON Description
GS 0 Gain Select off, no change in gain
(default)
1 Gain Select on, 6dB gain
OP2EN 0 OUTPUT2 disabled 1 OUTPUT2 enabled (default)
OP1EN 1 OUTPUT1 enabled (default) 0 OUTPUT1 disabled
BP 0 Bypass off (default) 1 Bypass on
Table 1-2: AUTOSLEEP (JP7) Jumper Settings
Label Connection Description
Connected (default) Enables the AUTOSLEEP function
Unconnected Disables the AUTOSLEEP function
Table 1-3: VCCO1_SEL (JP8), VCCO2_SEL (JP9) Jumper Settings
Label Connection Description
SS (default) Shared supply mode
EXT Output uses a separate external supply
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
6 of 10
1.5 Potentiometer Settings
Adjusting the potentiometers clockwise will decrease the voltage level at the SQ_ADJ
and OP_CTL pins. Adjusting the potentiometers counter-clockwise will increase the
voltage level at the SQ_ADJ and OP_CTL pins.
1.5.1 OP1_CTL, OP2_CTL Potentiometer Settings
The output control potentiometer settings are described in Table 1-5 below:
1.5.2 Squelch Adjust (SQ_ADJ) Potentiometer Settings
There is one multi-turn potentiometer on the EB-GS2993 assigned for squelch adjust,
which adjusts the voltage seen at the SQ_ADJ pin. This input adjusts the threshold of the
CD
pin. When the SQ_ADJ input is 0V, all cable lengths will be equalized. When the
SQ_ADJ input is 3.3V, there will be no equalization regardless of the cable length. Please
refer to the GS2993 Data Sheet for more details on carrier detect and squelch adjust.
Table 1-4: LED_EN (JP10) Jumper Settings
Label Connection Description
Connected (default)
LED is enabled
Unconnected
LED is disabled
Table 1-5: OP1_CTL, OP2_CTL Input Settings
Level Swing De-emphasis Mute Voltage
0 800mV Off N 0
1 800mV 2dB N 1 x (VCC/8)
2 800mV 4dB N 2 x (VCC/8)
3 800mV 6dB N 3 x (VCC/8)
4 400mV Off N 4 x (VCC/8)
5 400mV 2dB N 5 x (VCC/8)
6 400mV 4dB N 6 x (VCC/8)
7 400mV 6dB N 7 x (VCC/8)
8 400mV N/A Y VCC
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
7 of 10
1.6 LED Indicator
D3 is the Carrier Detect LED for the GS2993. D3 is on when no carrier is detected and
stays off otherwise. There is one LED_EN jumper which when disconnected, it disables
the LED. This is useful when measuring system power dissipation.
2. Schematic
Figure 2-1: GS2993 Schematic
5
6
7
8
4
3
2
1
1516
2
1219
1
TAB
9
3
4
10
11
21
20
5
14
13
18
17
22
8
7
6
OP2_EN_93
BYPASS_93
OP1_EN_93
BYPASS_93
CDB_93
24
23
VCC_DIG_93 - DIGITAL SUPPLY
POWER SUPPLIES
LED ENABLE JUMPER
VCC_O2_93 - OUTPUT 2 SUPPLY
VCC_A_93 - INPUT SUPPLY
AUTOSLEEP
POWER SUPPLIES
VCC_O1_93 - OUTPUT 1 SUPPLY
VCC_LED_93 - LED SUPPLY SEPARATED FROM INPUT SUPPLY BY HEADER
10μF
100nF
10μF
100nF
VCC_O2_93
VCC_O1_93
100nF
37.4
VCC_A_93
4.7μF
SMA
SWDIP4
VCC_DIG_93
221
VCC_DIG_93
VCC_O1_93
TBD
WHITE
10nF
WHITE
SMA
100
BLACK
VCC_A_93
RED
WHITE
470nF
VCC_A_93
SMA
10nF
1μF
10NF
1μF
10nF
VCC_A_93
10nF
VCC_O2_93
SMA
4.7μF
MMBT3904
VCC_A_93
75
4.7μF
VCC_A_93
RED
14k
4.7μF
365
YELLOW
1.21K
GS2993
75
6.2nH
BNC
TBD
5.0K
YELLOW
5.0K
10nF
WHITE
5.0K
R11 R10
R33
D3
R34
Q6
R31
C17
TP7
TP8
C34
C32
C31
C33
TP11
TP10
JP9
JP8
JP10
C35
C36
TP13
TP12
SW2
C23
C24
C25
R30
R32
R23
TP9
C18
C29
J8
C28
J7
J5
J6
C26
C27
C19
C20
R18
L4
R16
R17
L3
R15
J4
C21
U1
TP6
C16
JP7
TAB
CD
SLEEP
CLI
OP1_EN
OP1_CTL
VCC_O1
DDO1
DDO1
VEE_O1
VEE_O2
DDO2
DDO2
VCC_O2
OP2_CTL
OP2_EN
SQ_ADJ
BYPASS
AGC
AGC
GAIN_SEL
SDI
SDI
VEE_A
VCC_A
1
ON
1
2
3
1
2
3
C
B
E
1
2
3
3
2
1
3
2
1
2
1
2
1
10μF
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
8 of 10
3. Board Layout
Figure 3-1: Layer 1 (Top Layer) and Top Silkscreen Figure 3-2: Layer 2 (Ground)
Figure 3-3: Layer 3 (Power) Figure 3-4: Layer 4 (Bottom)
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
9 of 10
4. Bill of Materials
Table 4-1: Bill of Materials
Quantity Reference Designator Part
6C16, C17, C18, C23, C24,
C25
Capacitor, ceramic; 10,000pF, 16V, 10%, X7R 0402
2 C19, C20 Capacitor, ceramic; 1.0μF, 10V, X5R 0402
1 C21 Capacitor, ceramic; 0.47μF, 10V, X5R 0402
4 C26, C27, C28, C29 Capacitor, ceramic; 4.7μF, 10V, 10%, X5R 0603
3 C31, C32, C35 Capacitor, ceramic; 0.1μF, 1 6V, 10%, X7R 0603
3 C33, C34, C36Capacitor, tantalum; 10μF, 10V, 10%, 3216/1206
1D3 LED, red; SMD type 0603
1 J4 Connector; BNC, edge-mount, PCB
(Cambridge C-S
X-077)
4 J5, J6, J7, J8 Connector; SMA, edge-mount, short signal pin
(Johnson 142-0791-881)
2 JP8, JP9 Connector; header 2mm single straight 36-position
(3 positions used)
2 JP7, JP10 Connector; header 2mm single straight 36-position
(2 positions used)
1 L3 Inductor; 6.2nH, 300mA, 0402
1Q6 Transistor; GP NPN AMP SOT23-3
1 R10 Resistor; 365Ω, 1/16W, 1%, 0402 SMD
2 R15, R17 Resistor; 75.0Ω, 1/16W, 1%, 0402 SMD
1 R11 Resistor; 1.21kΩ, 1/16W, 1%, 0402 SMD
1 R23 Resistor; 221Ω, 1/16W, 1%, 0402 SMD
1 R18 Resistor; 37.4Ω, 1/16W, 1%, 0402 SMD
1 R33 Resistor; 14.0kΩ, 1/16W, 1%, 0402 SMD
1 R34 Resistor; 100Ω, 1/16W, 1%, 0402 SMD
3 R30, R31, R32 Potentiometer; 5.0kΩ
1/4W 10% 4mm cermet top
SMD 5-turn
1 SW2 Switch; tape seal 4-position SMD
4TP6, TP7, TP8, TP9 Test Point, PC multi-purpose (white)
2 TP10, TP11 Test Point, PC multi-purpose (yellow)
1 TP12 Test Point, PC multi-purpose (red)
1 TP13 Test Point, PC multi-purpose (black)
1 U1 Gennum GS2993 3Gb/s Equalizer,
QFN24-4X4X1MM-0P5MM
OTTAWA
232 Herzberg Road, Suite 101
Kanata, Ontario K2K 2A1
Canada
Phone: +1 (613) 270-0458
Fax: +1 (613) 270-0429
CALGARY
3553 - 31st St. N.W., Suite 210
Calgary, Alberta T2L 2K7
Canada
Phone: +1 (403) 284-2672
UNITED KINGDOM
North Building, Walden Court
Parsonage Lane,
Bishop’s Stortford Hertfordshire, CM23 5DB
United Kingdom
Phone: +44 1279 714170
Fax: +44 1279 714171
INDIA
#208(A), Nirmala Plaza,
Airport Road, Forest Park Square
Bhubaneswar 751009
India
Phone: +91 (674) 653-4815
Fax: +91 (674) 259-5733
SNOWBUSH IP - A DIVISION OF GENNUM
439 University Ave. Suite 1700
Toronto, Ontario M5G 1Y8
Canada
Phone: +1 (416) 925-5643
Fax: +1 (416) 925-0581
E-mail: sales@snowbush.com
Web Site: http://www.snowbush.com
MEXICO
288-A Paseo de Maravillas
Jesus Ma., Aguascalientes
Mexico 20900
Phone: +1 (416) 848-0328
JAPAN KK
Shinjuku Green Tower Building 27F
6-14-1, Nishi Shinjuku
Shinjuku-ku, Tokyo, 160-0023
Japan
Phone: +81 (03) 3349-5501
Fax: +81 (03) 3349-5505
E-mail: gennum-japan@gennum.com
Web Site: http://www.gennum.co.jp
TA IW AN
6F-4, No.51, Sec.2, Keelung Rd.
Sinyi District, Taipei City 11502
Taiwan R.O.C.
Phone: (886) 2-8732-8879
Fax: (886) 2-8732-8870
E-mail: gennum-taiwan@gennum.com
GERMANY
Hainbuchenstraße 2
80935 Muenchen (Munich), Germany
Phone: +49-89-35831696
Fax: +49-89-35804653
E-mail: gennum-germany@gennum.com
NORTH AMERICA WESTERN REGION
691 South Milpitas Blvd., Suite #200
Milpitas, CA 95035
United States
Phone: +1 (408) 934-1301
Fax: +1 (408) 934-1029
E-mail: naw_sales@gennum.com
NORTH AMERICA EASTERN REGION
4281 Harvester Road
Burlington, Ontario L7L 5M4
Canada
Phone: +1 (905) 632-2996
Fax: +1 (905) 632-2055
E-mail: nae_sales@gennum.com
DOCUMENT IDENTIFICATION
EVALUATION BOARD USER GUIDE
Information relating to this product and the application or design described
herein is believed to be reliable, however such information is provided as a
guide only and Gennum assumes no liability for any errors in this document, or
for the application or design described herein. Gennum reserves the right to
make changes to the product or this document at any time without notice.
EB-GS2993
Evaluation Board User Guide
55092 - 0 April 2010
10 of 10
10
Gennum Corporation assumes no liability for any errors or omissions in this document, or for the use of the circuits or devices described herein. The sale of
the circuit or device described herein does not imply any patent license, and Gennum makes no representation that the circuit or device is free from patent
infringement.
All other trademarks mentioned are the properties of their respective owners.
GENNUM and the Gennum logo are registered trademarks of Gennum Corporation.
© Copyright 2010 Gennum Corporation. All rights reserved.
www.gennum.com
GENNUM CORPORATE HEADQUARTERS
4281 Harvester Road, Burlington, Ontario L7L 5M4 Canada
Phone: +1 (905) 632-2996 Fax: +1 (905) 632-2055
E-mail: corporate@gennum.com www.gennum.com
CAUTION
ELECTROSTATIC SENSITIVE DEVICES
DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A
STATIC-FREE WORKSTATION
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10

GENNUM EB-GS2993 User manual

Type
User manual
This manual is also suitable for

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI