GS1522_04 Datasheet, PDF (1/20 Pages) Gennum Corporation – HDTV Serial Digital Serializer

HD-LINX ^™ GS1522
HDTV Serial Digital Serializer
FEATURES
• SMPTE 292M compliant
• 20:1 parallel to serial conversion
• NRZ(I) encoder & SMPTE scrambler with selectable
bypass
• NRZ to NRZ(I) serial data conversion
• 1.485Gb/s and 1.485/1.001Gb/s operation
• lock detect output
• selectable DUAL or QUAD 75Ω cable driver outputs
• 8 bit or 10 bit input data support
• 20 bit wide inputs
• Pb-free and Green
• 3.3V and 5V CMOS/TTL compatible inputs
• single +5.0V power supply
APPLICATIONS
SMPTE 292M Serial Digital Interfaces for Video Cameras,
Camcorders, VTRs, Signal Generators, Portable Equip-
ment, and NLEs.
DATA SHEET
DESCRIPTION
The GS1522 is a monolithic bipolar integrated circuit
designed to serialize SMPTE 274M and SMPTE 260M bit
parallel digital signals.
This device performs the following functions:
• Sync word mapping for 8-bit/10-bit operation.
• Parallel to Serial conversion of Luma & Chroma data
• Interleaving of Luma and Chroma data
• Data Scrambling (using the X⁹+X⁴+1 algorithm)
• Conversion of NRZ to NRZI serial data (using the (X+1)
algorithm)
• Selectable DUAL or QUAD 75Ω Cable Driver outputs
• Lock Detect Output
• 1.485Gb/s or 1.485/1.001Gb/s operation
This device requires a single 5V supply and typically
consumes less than 1000mW of power while driving two
75Ω cables.
The GS1522 uses the GO1515 external VCO connected to
the internal PLL circuitry to achieve ultra low noise PLL
performance.
ORDERING INFORMATION
PART NUMBER
GS1522-CQR
GS1522-CQRE3
PACKAGE
128 pin MQFP
128 pin MQFP
TEMPERATURE
0°C to 70°C
0°C to 70°C
Pb-FREE AND GREEN
No
Yes
SYNC_DETECT
_DISABLE
20
20
DATA_IN[19:0]
INPUT
LATCH
PCLK_IN
PLL
GO1515
RESET BYPASS
R_SET0
SYNC DETECT
SMPTE
SCRAMBLER
INTERLEAVER
RESET
BYPASS
S_CLK
PARALLEL
TO SERIAL
CONVERTER
NRZ TO NRZI
P_LOAD
MUTE
O/P0
O/P1
SDO0
SDO0
SDO1
SDO1
R_SET1
SDO1_EN
PLL_LOCK
Revision Date: June 2004
FUNCTIONAL BLOCK DIAGRAM
Document No. 522 - 26 - 03
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. [phone] Fax. [phone] E-mail: [e-mail]
www.gennum.com