GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com
www.gennum.com
Revision Date: June 2004
Document No. 22212 - 2
DATA SHEET
GS90
64
KEY FEATURES
SMPTE 259 and SMPTE 344 compliant
automatic cable equalization
supports DVB-ASI at 270Mb/s
typical maximum equalized length of Belden 1694A
cable at 270Mb/s is 350m
50
differential output (with internal 50
pull-ups)
cable length indicator
output mute based on maximum cable length adjust or
manual override
Pb-free and Green
single 3.3V power supply operation
operating temperature range: 0C to +70C
pin compatible with HDLINX
TM
II GS1524 multirate SDI
adaptive cable equalizer
APPLICATIONS
SMPTE 259M Coaxial Cable Serial Digital Interfaces
DESCRIPTION
The GS9064 is a second-generation high-speed bipolar
integrated circuit designed to equalize and restore signals
received over 75
co-axial cable at data rates from
143Mb/s up to 540Mb/s. The GS9064 is designed to
support SMPTE 344M and SMPTE 259M and is optimized
for performance at 270Mb/s.
The GS9064 features DC restoration to compensate for the
DC content of SMPTE pathological test patterns, and
incorporates a Cable Length Indicator (CLI) that provides a
linear indication of the amount of cable being equalized.
A voltage programmable mute threshold (MCLADJ) is
included to allow muting of the GS9064 output when a
selected cable length is reached. This feature allows the
GS9064 to distinguish between low amplitude SDI signals
and noise at the input of the device. The CD/MUTE pin
provides an indication of the GS9064 mute status in
addition to functioning as a mute control input. The output
of the GS9064 may be forced to an active or a mute
condition by applying a voltage to the CD/MUTE pin.
GS9064 FUNCTIONAL BLOCK DIAGRAM
CABLE LENGTH INDICATOR/ADJUSTOR
CARRIER DETECT
MUTE
EQUALIZER
DC RESTORE
OUTPUT
AGC
CLI
CD/MUTE
SDO
SDO
SDI
SDI
MCLADJ
BYPASS
GS9064 SD SDI
Adaptive Cable Equalizer
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64
TABLE OF CONTENTS
1. PIN OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 PIN ASSIGNMENT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2 PIN DESCRIPTIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2. ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 ABSOLUTE MAXIMUM RATINGS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.2 DC ELECTRICAL CHARACTERISTICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.3 AC ELECTRICAL CHARACTERISTICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.4 INPUT/OUTPUT CIRCUITS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.5 TYPICAL PERFORMANCE CURVES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3. DETAILED DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4. APPLICATION REFERENCE DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.1 PCB LAYOUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.2 TYPICAL APPLICATION CIRCUIT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5. REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6. PACKAGE & ORDERING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.1 PACKAGE DIMENSIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.2 ORDERING INFORMATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7. REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
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1. PIN OUT
1.1 PIN ASSIGNMENT
1.2
PIN DESCRIPTIONS
PIN
NUMBER
NAME
TYPE
DESCRIPTION
1
CLI
Output
CABLE LENGTH INDICATOR
An analog voltage proportional to the cable length connected to the serial digital input.
NOTE: CLI is recommended for data rates up to 360 Mb/s only.
2, 15
V
CC
Input
Power
Most positive power supply connection. Connect to +3.3V.
3, 6, 11,
14
V
EE
Input
Power
Most negative power supply connection. Connect to ground.
4, 5
SDI, SDI
Input
Serial digital differential inputs.
7, 8
AGC+, AGC-
Passive
Input
External AGC capacitor. Should be set to 1F.
9
BYPASS
Input
Forces the CORE stage and the DC RESTORE stage into bypass mode when HIGH. No
equalization occurs in this mode.
10
MCLADJ
Input
MAXIMUM CABLE LENGTH ADJUST
Adjusts the approximate maximum amount of cable to be equalized (from 0m to the
maximum cable length). The output is muted (latched to the last state) when the
maximum cable length is achieved.
NOTE: MCLADJ is recommended for data rates up to 360 Mb/s only.
12, 13
SDO, SDO
Output
Equalized serial digital differential outputs.
16
CD/MUTE
Input /
Output
MUTE INDICATOR-CONTROL / CARRIER DETECT
OUTPUT: the output voltage drops to below 1.2V when the carrier is present and the
data outputs are active.
INPUT: if the CD/MUTE pin is tied to ground, the data output will never mute and the
MCLADJ setting is overwritten. If the CD/MUTE pin is tied to VCC, the data outputs will
always mute and the MCLADJ setting is overwritten.
CLI
V
CC
V
EE
SDI
SDI
V
EE
AGC+
AGC-
CD/MUTE
V
CC
V
EE
SDO
SDO
V
EE
MCLADJ
BYPASS
GS9064
16PIN SOIC
TOP VIEW
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
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2. ELECTRICAL CHARACTERISTICS
2.1
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VALUE
Supply Voltage
-0.5V to +3.6 V
DC
Input ESD Voltage
500V
Storage Temperature Range
-50C< T
s
< 125C
Input Voltage Range (any input)
-0.3 to (V
CC
+ 0.3)V
Operating Temperature Range
0C to 70C
Power Dissipation
300mW
Lead Temperature (soldering, 10 sec.)
260C
2.2 DC ELECTRICAL CHARACTERISTICS
V
CC
= 3.3V , V
EE
= 0V , T
A
= 0
C to 70C
, 270Mb/s, unless otherwise shown
PARAMETER
SYMBOL
CONDITIONS
MIN
TYPICAL
MAX
UNITS
TEST
LEVEL
NOTES
Supply Voltage
V
CC
3.1
3.3
3.5
V
1
-
Power Consumption
P
D
T
A
= 25C
-
265
-
mW
5
-
Supply Current
S
T
A
= 25C
-
80
-
mA
1
-
Input Common Mode Voltage
V
CMIN
-
1.75
-
V
10
-
Output Common Mode Voltage
V
CMOUT
-
V
CC
-
V
SDO
/2
-
mV
7
-
CLI DC Voltage
Cable length = 0m
-
2.5
-
V
1
-
No signal (max
cable length)
-
1.9
-
V
7
-
Floating MCLADJ DC Voltage
-
1.3
-
V
7
-
MCLADJ Range
0m to max cable
length
-
0.69
-
V
7
-
CD/Mute Output Voltage
V
CD/Mute(OH)
Carrier not present
2.6
-
-
V
1
-
V
CD/Mute(OL)
Carrier present
-
-
1.2
1
-
CD/Mute Input Voltage
Required to Force Outputs to
Mute
V
CD/Mute)
Min to Mute
3.0
-
-
V
7
-
CD/Mute Input Voltage
Required to Force Outputs to
Activate
V
CD/Mute
Max to Activate
-
-
2.0
V
7
-
TEST LEVELS
1.
Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges.
2.
Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges using
correlated test.
3.
Production test at room temperature and nominal supply voltage.
4.
QA sample test.
5.
Calculated result based on Level 1, 2, or 3.
6.
Not tested. Guaranteed by design simulations.
7.
Not tested. Based on characterization of nominal parts.
8.
Not tested. Based on existing design/characterization data of similar product.
9.
Indirect test.
10. Wafer Probe
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2.3 AC ELECTRICAL CHARACTERISTICS
V
CC
= 3.3V , V
EE
= 0V , T
A
= 0
C to 70C
, 270Mb/s, unless otherwise shown
PARAMETER
SYMBOL
CONDITIONS
MIN
TYPICAL
MAX
UNITS
TEST
LEVEL
NOTES
Serial Input Data Rate
DR
SDI
EQ active
143
-
540
Mb/s
6
-
Input Swing
V
SDI
Differential, T
A
=25C
Cable length = 0m
720
800
950
mV
p-p
1
-
Output Swing
V
SDO
Differential, 50 ohm load, T
A
=25C
-
750
-
mV
p-p
1
-
Maximum Equalized
Cable Length
270Mb/s, Belden 8281
0.20UI output jitter
EQ Pathological
-
280
-
m
7
-
540Mb/s, Belden 8281
0.20UI output jitter
EQ Pathological
-
180
-
m
7
-
Output Rise/Fall Time
t
r
, t
f
20% - 80%
-
80
220
ps
1
-
Mismatch in Rise/Fall
Time
-
-
30
ps
1
-
Duty Cycle Distortion
-
-
100
ps
7
-
Overshoot
-
-
10
%
1
-
Input Return Loss
IRL
15
-
-
dB
7
-
TEST LEVELS
1.
Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges.
2.
Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges using
correlated test.
3.
Production test at room temperature and nominal supply voltage.
4.
QA sample test.
5.
Calculated result based on Level 1, 2, or 3.
6.
Not tested. Guaranteed by design simulations.
7.
Not tested. Based on characterization of nominal parts.
8.
Not tested. Based on existing design/characterization data of similar product.
9.
Indirect test.
10. Wafer Probe
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