HD-LINX
™
GS1515
HDTV Serial Digital Reclocker
PRELIMINARY DATA SHEET
FEATURES
• SMPTE 292M compliant
• fully automatic adjustment free reclocker for HDTV
signals
• 1.485Gb/s and 1.485/1.001Gb/s operation
• dual 75Ω co-axial cable driver outputs
• reclocker bypass mode
• seamless input Interface to the GS1504 HD adaptive
equalizer
• low power
• lock detect
• +5V or -5V power supply operation
• 44 pin MQFP
APPLICATIONS
SMPTE 292M Serial Digital Routers; SMPTE 292M Serial
Digital Distribution Amplifiers.
ORDERING INFORMATION
PART NUMBER
GS1515-CQM
GS1515-CTM
PACKAGE
44 pin MQFP
44 pin MQFP Tape
TEMPERATURE
0°C to 70°C
0°C to 70°C
DESCRIPTION
The GS1515 HDTV Serial Digital Reclocker is designed to
automatically recover the embedded clock signal and re-
time the data from a SMPTE 292M compliant digital video
signal.
An internal low pass filter removes the high frequency jitter
components from the bit-serial stream. 100Ω differential
input termination is on-chip for seamless matching to 50Ω
transmission lines. A dual SMPTE 292M compliant output
Cable Driver is also included on-chip. The GS1515 uses the
GO1515 external VCO connected to the internal PLL
circuitry in order to achieve ultra low noise PLL
performance.
Two diagnostic features are included in the GS1515 for
robust system design. The Input Jitter Indicator (IJI)
indicates excessive input jitter before the Serial Digital
outputs are muted and the Jitter Demodulator Function
(DM) helps to debug systems and locate the source of jitter.
The GS1515 is packaged in a 44 pin MQFP package and
requires a single 5V power supply. The GS1515 typically
draws 100mA of current.
GS1515
LFS
LFS
PLCAP
PLCAP
IJI
LFA
CHARGE
PUMP
GO1515
VCO
VCO
PHASE
DETECTOR
PHASE
LOCK
LOGIC
PLL_LOCK
MUTE
JITTER
DEMODULATOR
DM
DM
DFT_V
EE
DDI
50
DDI_V
TT
50
DDI
PATENT PENDING
BYPASS
R
SET
INPUT
BUFFER
BYPASS
CABLE
DRIVER
SDO
SDO
BLOCK DIAGRAM
Revision Date: January 2000
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
Document No. 522 - 23 - 01
GENNUM [ GENNUM CORPORATION ]
