GV7704
User Guide Rev.0
PDS-061030 June 2015
2 of 8
Semtech
Proprietary & Confidential
www.semtech.com
Revision History
Contents
1. GV7704 IBIS Model ..........................................................................................................................................3
1.1 GV7704 Input IBIS Model .................................................................................................................3
1.2 GV7704 Output IBIS Model .............................................................................................................4
1.3 S-Parameter Package Model ..........................................................................................................4
1.4 Supporting Files ..................................................................................................................................7
Version ECO PCN Date Changes and/or Modifications
0 026239 — June 2015 New Document
GV7704
User Guide Rev.0
PDS-061030 June 2015
3 of 8
Semtech
Proprietary & Confidential
www.semtech.com
Introduction
The GV7704 is a quad channel serial digital video receiver for High Definition
component video. With integrated high performance cable equalizer technology, the
GV7704 is capable of receiving HD video at 270Mb/s and 1.485Gb/s over 75Ω coaxial
cable, or differentially over a 100Ω twisted pair cable.
This document describes the use of the IBIS models for the GV7704. The models
facilitate simulation in EDA platforms compliant with the IBIS 5.0 standard.
1. GV7704 IBIS Model
Two IBIS models are provided for the GV7704, representing the high-speed serial inputs
and outputs: CHx_SDI/
CHx_SDI, CHx_SDO/CHx_SDO.
1.1 GV7704 Input IBIS Model
The GV7704 input model consists of two parts:
• Package model
• Input IBIS model
The block diagram in Figure 1-1 shows the sequence of signal flow and the individual
parts of the model. The external S-parameter data for the package model increases the
accuracy of the package effects compared to using discrete R, L, and C components as
specified in the IBIS 5.0 standard. The external S-parameter data is processed as part of
the channel by the EDA platform.
Figure 1-1: GV7704 Input Model
The GV7704 CHx_SDI IBIS models are extracted from device simulation results. The
input IBIS models contain the GV7704 device input termination circuitry, and are used
by the EDA platform to determine the time-domain impulse response for the channel.
Two models are included in the input IBIS model file for 50Ω and 75Ω input termination.
The current revision of the input IBIS model contains typical (Typ), minimum (Min) and
maximum (Max) corners. The desired termination model and corner can be selected
from the EDA user interface.
From Channel
Package
Model
(S-parameter)
Input
IBIS
Model
GV7704
User Guide Rev.0
PDS-061030 June 2015
4 of 8
Semtech
Proprietary & Confidential
www.semtech.com
1.2 GV7704 Output IBIS Model
The GV7704 output IBIS model consists of two parts:
• Output IBIS model
• Package model
The block diagram in Figure 1-2 shows the sequence of signal flow and the individual
parts of the model. The external S-parameter data for the package model increases the
accuracy of the package effects compared to using discrete R, L, and C components as
specified in the IBIS 5.0 standard. The external S-parameter data is processed as part of
the channel by the EDA platform.
Figure 1-2: GV7704 Output Model
The GV7704 CHx_SDO IBIS model is extracted from device simulation results. Two
models are included in the output IBIS model file for 50Ω and 75Ω driver termination,
with fixed 800mV
pp
(differential) and 800mV
pp
(single ended) swings, respectively. The
current revision of the output IBIS model contains typical (Typ), minimum (Min) and
maximum (Max) corners. The desired termination model and corner can be selected
from the EDA user interface.
1.3 S-Parameter Package Model
A package model for the GV7704 is provided in standard touchstone format. Table 1-1
lists the touchstone file port mappings between die pads and package balls for channels
0 and 1. The package models for channels 2 and 3 are identical to channels 1 and 0,
respectively. The SDD21 through responses for each input and output are shown in
Figure 1-3, Figure 1-4, Figure 1-5 and Figure 1-6.
Note: During simulation, any unused ports should be terminated to 50Ω.
Package
Model
(S-parameter)
To Channel
Output
IBIS
Model
Table 1-1: Touchstone Port Mapping
Signal Die Pad Side Port Package Ball Side Port
CH1_SDO 1 9
CH1_SDO
210
CH1_SDI
311
CH1_SDI 4 12
GV7704
User Guide Rev.0
PDS-061030 June 2015
5 of 8
Semtech
Proprietary & Confidential
www.semtech.com
Figure 1-3: GV7704 CH0_SDO Package Model SDD21
CH1_SDO 5 13
CH1_SDO
614
CH1_SDI
715
CH1_SDI 8 16
Table 1-1: Touchstone Port Mapping
Signal Die Pad Side Port Package Ball Side Port
Freq (GHz)
dB (SDD_21_CH0_SDO)
dB (SDD_21_CH0_SDO) = -0.073
Freq (GHz) = 750MHz
GV7704
User Guide Rev.0
PDS-061030 June 2015
6 of 8
Semtech
Proprietary & Confidential
www.semtech.com
Figure 1-4: GV7704 CH0_SDI Package Model SDD21
Figure 1-5: GV7704 CH1_SDO Package Model SDD21
Freq (GHz)
dB (SDD_21_CH0_SDI)
dB (SDD_21_CH0_SDI) = -0.070
Freq (GHz) = 750MHz
Freq (GHz)
dB (SDD_21_CH1_SDO)
dB (SDD_21_CH1_SDO) = -0.049
Freq (GHz) = 750MHz
GV7704
User Guide Rev.0
PDS-061030 June 2015
7 of 8
Semtech
Proprietary & Confidential
www.semtech.com
Figure 1-6: GV7704 CH1_SDI Package Model SDD21
1.4 Supporting Files
Receiver Model
• gv7704_sdi_rev1.ibs
Transmitter Model
• gv7704_sdo_rev1.ibis
Package Model
• GV7704_SDI_SDO_Package_Model.s16p
Freq (GHz)
dB (SDD_21_CH1_SD1)
dB (SDD_21_CH1_SD1) = -0.056
Freq (GHz) = 750MHz
IMPORTANT NOTICE
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 Semtech assumes no liability for any errors in this document, or for the application or design described herein.
Semtech reserves the right to make changes to the product or this document at any time without notice. Buyers should obtain the latest relevant
information before placing orders and should verify that such information is current and complete. Semtech warrants performance of its
products to the specifications applicable at the time of sale, and all sales are made in accordance with Semtech’s standard terms and conditions
of sale.
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS,
DEVICES OR SYSTEMS, OR IN NUCLEAR APPLICATIONS IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO RESULT IN PERSONAL
INJURY, LOSS OF LIFE OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS
UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such
unauthorized application, the customer shall indemnify and hold Semtech and its officers, employees, subsidiaries, affiliates, and distributors
harmless against all claims, costs damages and attorney fees which could arise.
The Semtech name and logo are registered trademarks of the Semtech Corporation. All other trademarks and trade names mentioned may be
marks and names of Semtech or their respective companies. Semtech reserves the right to make changes to, or discontinue any products
described in this document without further notice. Semtech makes no warranty, representation or guarantee, express or implied, regarding the
suitability of its products for any particular purpose. All rights reserved.
© Semtech 2015
GV7704
User Guide Rev.0
PDS-061030 June 2015
8 of 8
Semtech
8Proprietary & Confidential
Contact Information
Semtech Corporation
200 Flynn Road, Camarillo, CA 93012
Phone: (805) 498-2111, Fax: (805) 498-3804
www.semtech.com
/
