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PDF GS9024-CKB Data sheet ( Hoja de datos )
| Número de pieza | GS9024-CKB | |
| Descripción | Automatic Cable Equalizer | |
| Fabricantes | ETC | |
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GENLINX ™II GS9024
Automatic Cable Equalizer
FEATURES
• automatic cable equalization
• fully compatible with SMPTE 259M
• typically equalizes greater than 350m of high quality
cable at 270Mb/s
• signal strength indicator
• output data muting when input data is lost
• output 'eye' monitor (OEM) with large signal amplitude
and power down option
• low power: 240mW at 5V
• 14 pin SOIC package
• programmable output data squelch for max cable
length limiting
• carrier detect with programmable threshold level
• serial data output "High Z" select to allow muxing of
EQ inputs
APPLICATIONS
Front-end cable equalization for digital video systems; Input
equalization for serial digital distribution amplifiers, routers,
production switchers and other receiving equipment.
DATA SHEET
DESCRIPTION
The GS9024 is a high performance automatic cable
equalizer designed for serial digital data rates from 143Mb/s
to 540Mb/s. The GS9024 receives either single-ended or
differential serial data and outputs equalized differential
signals at PECL levels (800mV). The GS9024 provides up to
40dB of gain at 200MHz which will typically result in
equalization of greater than 350m at 270Mb/s of Belden
8281 cable.
The GS9024 incorporates an analog signal strength
indicator/carrier detect (SSI/CD) output indicating both the
presence of a carrier and the amount of equalization
applied to the signal. Optional external resistors allow the
carrier detect threshold level to be customized to the user's
requirement.
The GS9024 also features selectable High Z serial data
outputs eliminating the need for input muxing circuitry in
routers. In addition, the GS9024 provides an 'Output Eye
Monitor' (OEM) which allows the verification of signal
integrity after equalization, prior to reslicing.
The GS9024 operates from a single +5V or -5V power
supply and consumes only 240mW of power. Packaged in a
small 14 pin SOIC, the GS9024 is ideal for router
applications where high density component placement is
required.
ORDERING INFORMATION
PART NUMBER
PACKAGE
GS9024-CKB
14 pin SOIC
GS9024-CTB
14 pin SOIC Tape
TEMPERATURE
0°C to 70°C
0°C to 70°C
SDI
SDI
OEM
+
-
EYE
MONITOR
VARIABLE GAIN
EQ STAGE
++
--
AUTO EQ
CONTROL
SDO
SDO
HIGH Z
SSI/CD
+-
AGC CD_ADJ
BLOCK DIAGRAM
Revision Date: November 2000
Document No. 521 - 70 - 06
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: [email protected]
www.gennum.com
1 page  
TYPICAL PERFORMANCE CURVES (VS = 5V, TA = 25°C unless otherwise shown.)
500 5.00
0.5 UI
400
Output
4.50
Additive
Jitter
300 4.00
0.2 UI
Output
200
Additive
3.50
Jitter
100 3.00
0
90
180 270 360 450
540 630
DATA RATE (Mb/s)
Fig. 3 Maximum Data Rate vs. Cable Length - Belden 8281n
(see Test Setup in Figure 1)
50
45
40
35
30
25
20
15
10
5
0
1 10 100 1000
FREQUENCY (MHz)
Fig. 4 Equalizer Gain vs. Frequency
1500
1400
1200
1000
800
600
540Mb/s
400
200
0
0
270Mb/s
50 100 150 200 250 300 350
CABLE LENGTH (m)
Fig. 5 Additive Jitter vs. Input Cable Length - Belden 8281
2.50
0
50 100 150 200 250 300 350 400 450 500
CABLE LENGTH (m)
Fig. 6 SSI/CD Voltage vs. Cable Length - Belden 8281
(CD_ADJ = 0V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
200
250
300 350 400
CABLE LENGTH (m)
Fig. 7 Carrier Detect Adjust Voltage Threshold Characteristics
j1
j0.5
j2
j0.2 j5
3000
-j0.2
1620
720
-j5
810
-j0.5
-j1
-j2
Frequencies in MHz, impedances normalized to 50Ω.
Fig. 8 Input Impedance
GENNUM CORPORATION
5
521 - 70 - 06
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet GS9024-CKB.PDF ] | |
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