GS1535
Multi-Rate SDI
Automatic Reclocker
™
PRODUCT BRIEF
CIRCUIT DESCRIPTION
• SMPTE 292M and 259M compliant
The GS1535 Multi-Rate Serial Digital Reclocker is designed
to automatically recover the embedded clock signal and retime the data from a SMPTE 292M or SMPTE 259M
compliant digital video signal.
• Supports data rates of 143, 177, 270, 360, 540, 1483.5,
1485 Mb/s
• Supports DVB-ASI at 270Mb/s
• Auto and Manual Modes for rate selection
• Standards indication in Auto Mode
• 4:1 input multiplexor
• Loss of Signal (LOS) output
• Lock Detect Output
• On-chip Input and Output Termination
• Differential inputs and outputs
• Selectable automatic Mute or Bypass when not locked
• Manual Bypass function
• SD/HD indication output to control GS1528 Dual SlewRate Cable Driver
• Single 3.3V power supply
• Operating temperature range : 0°C to 70°C
The device removes the high frequency jitter components
from the bit-serial stream. Input termination is on-chip for
seamless matching to 50Ω transmission lines. An LV PECL
compliant output interfaces seamlessly to the GS1528
Cable Driver
The GS1535 can operate in either auto or manual rate
selection mode. In Auto mode the GS1535 automatically
detects and locks onto an incoming SMPTE SDI data signal
from 143Mb/s to 1.485Gb/s. For single rate data systems,
the GS1535 can be configured to operate in manual mode.
In both modes, the GS1535 requires only one external
crystal to set the VCO frequency when not locked and
provides adjustment free operation. In systems which
require passing non-SMPTE data rates, the GS1535 will
automatically or manually enter a bypass mode in order to
pass the signal without reclocking.
APPLICATIONS
The ASI/177 input pin allows for manual selection of support
SMPTE 292M and SMPTE 259M Serial Digital Interfaces
of either 177Mb/s or DVB-ASI inputs
ORDERING INFORMATION
PART NUMBER
PACKAGE
TEMPERATURE
GS1535-CFU
64 pin LQFP
0°C to 70°C
GS1535-CCU
64 pin BCC++
0°C to 70°C
Revision Date: August 2001
Document No. 19591 - 0
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
GS1535
FEATURES
SDO_MUTE
SDO/SDO
SCO_EN
SCO/SCO
SD/HD
ASI/177
AUTOBYPASS
BYPASS
M
U
X
QCLK
MUTE
M
U
X
DDI0
DDI1
DDI2
DDI3
DDI_SEL[1:0]
DIVIDERS
PFD
XTAL
BUFFER
XTAL OUT
M
U
X
CLF
KBB
CP
PD/PFD
PHASE LOCK DETECTOR
ONE BIT DETECTOR
TRANSITION DETECTOR
RE-TIMER
VCO
EXTERNAL
VCO
CLK
MUX
DIVIDERS
BYPASS
LOGIC
CLOCK
BUFFER
COUNTER AND DECODER
OUTPUT
BUFFER
SS[3:0]
AUTO/MAN
LD
PHASE LOCK TIMER
HARMONIC LOCK TIMER
LOS TIMER
FREQ. LOCK TIMER
SYSTEM OSCILLATOR
DIAGNOSTICS
DFT/DFE
XVCO_SEL
GS1535
CONTROLLER
LOGIC
LOS
FUNCTIONAL BLOCK DIAGRAM
DOCUMENT IDENTIFICATION
REVISION NOTES:
New Document
PRODUCT BRIEF
GENNUM CORPORATION
GENNUM JAPAN CORPORATION
C-101, Miyamae Village, 2-10-42 Miyamae, Suginami-ku
Tokyo 168-0081, Japan
Tel. +81 (03) 3334-7700 Fax. +81 (03) 3247-8839
MAILING ADDRESS:
P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946
GENNUM UK LIMITED
25 Long Garden Walk, Farnham, Surrey, England GU9 7HX
Tel. +44 (0)1252 747 000 Fax +44 (0)1252 726 523
SHIPPING ADDRESS:
970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5
Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.
© Copyright August 2001 Gennum Corporation. All rights reserved. Printed in Canada.
2
19591 - 0
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