M21315 Datasheet, PDF (1/25 Pages) M/A-COM Technology Solutions, Inc. – HD/SD Auto-Rate Reclocker

M21315
HD/SD-SDI Auto-rate Reclocker w/4:1 Selector
Rev V2
Applications
• Serial Routing Switchers
• Distribution Amplifiers
• SMPTE Coaxial Cable Interface
• Studio video applications
• Broadcast video applications
• Distribution video applications
Standards Compliance
• SMPTE 259M, 292M, 344M and DVB-ASI
Features
• SD/HD operation: 143, 177, 270, 360, 540, 1483.5, 1485 Mbps and DVB-ASI
at 270 Mbps
• Auto and manual rate selection modes with rate indication in Auto
• 4:1 Input MUX and Loss of Lock (LOL) indicator
• Input buffers are compatible with PCML voltage levels
• Differential I/O with on chip termination resistors
• Selectable auto MUTE or BYPASS with manual BYPASS option
• Pin to pin compatible with GS1575 (without serial clock out and loss of signal
indicator)
• Low typical power dissipation (430 mW @ 3.3V)
• 3.3V power supply operation
• Extended temperature operation: -10°C to +85°C
The M21315 is a high-speed, low-power reclocker designed to remove both random and inter-symbol interference
(ISI) jitter from the input data for SMPTE and DVB-ASI serial digital video applications. MACOM's high-
performance reclocker offers significant power reduction compared to legacy reclocking solutions.
The M21315 is based on a custom and proprietary reclocker core. The high-performance reclocker design results
in high-jitter tolerance, especially in the presence of duty-cycle-distortion (DCD) that typically arises with AC
coupling and video pathological test patterns. The M21315 also offers improved auto rate detect acquisition times
over legacy reclocker solutions.
The M21315 supports SMPTE HD/SD-SDI data rates from 143 Mbps to 1485 Mbps. The M21315 is functionally
and pin compatible with the GS1575B (without serial clock out and loss of signal indicators). The M21315 occupies
the same footprint as the GS9075B (without serial clock out and loss of signal indicator). The M21315 also
consumes less power than the GS1575B or GS9075B.
Functional Block Diagram
XTL_IN
XTL_IN
IN_SEL [1:0]
DDI0/DDI0
DDI1/DDI1
DDI2/DDI2
DDI3/DDI3
XTAL
Oscillator
2
VDDI_TERM[3:0]
4
XTAL
Buffer
Bypass/Mute
Logic
Multi-Rate Reclocker Core
Phase/Frequency
Detector
Charge Pump
Loop Filter
VCO
Control
Logic
Output
Buffer
3
DDO
DDO
RATE[2:0]
LOL
SD/HD
1
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
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http://www.macom.com/support