212X8-DSH-001-B Datasheet, PDF (1/18 Pages) M/A-COM Technology Solutions, Inc. – SD and HD/SD-SDI Digital Video Cable Drivers

M21208/M21218
SD and HD/SD-SDI Digital Video Cable Drivers
The M21208 and M21218 are high-speed, low-power, low-jitter cable drivers. They are designed to drive serial
digital video data through 75Ω coaxial cable typically used in SMPTE and DVB-ASI video applications. The
M21218 cable driver is optimized for performance from 143 Mbps up to 1485 Mbps, it has selectable slew rate for
SD-SDI and HD-SDI applications. The M21208 cable driver is optimized for performance from 143 Mbps up to 540
Mbps with SD-SDI slew rates.
The typical output rise/fall time of the M21218 is 100 ps for HD rates. Both devices have a typical set slew rate of
600 ps at SD rates. The default output voltage swing is compliant with SMPTE 292M, 259M and 344M using a
750Ω ±1% resistor. The M21208 and M21218 are pin compatible, with the exception that the M21208 has no SD/
HD control pin. M21208/M21218 support a maximum single ended output swing of 1600 mVp–p, when configured
appropriately.
Both devices are available in a small outline RoHS compliant package, which is backwards compatible with
standard JEDEC SnPb processes. The M21208 is pin compatible with the GS9068/9068A devices, and the
M21218 is pin compatible with the GS1528/1528A, both support 2.5V and 3.3V operation.
Applications
• Serial Routing Switchers, Production/Master Control Switchers
• Distribution Amplifiers
• Video Tape Recorders, ENG Edit decks, Cameras
• Broadcast video applications
• NLE's, MPEG Encoders/Decoders, format convertors etc.
Standards Compliance
• SMPTE 292M, 259M, 344M
Features
• HD and SD operation (M21218)
• SD operation (M21208)
• Pin compatible to GS9068/9068A (M21208)
• Pin compatible to GS1528/1528A (M21218)
• 800 mVp–p single ended output swing (typical)
• 1600 mVp–p maximum single ended output swing
• SD/HD Slew Rate control (M21218)
• 2.5V or 3.3V supply
• Low P_DISS (122 mW @ 2.5V, 144 mW @ 3.3V)
• Extended temperature range: -10 °C to 85 °C
• RoHS package
Functional Block Diagram
AV_DD
2.5V - 3.3V and
BIAS CIRCUITRY
SDI
INPUT
BUFFER
SDI
M21208 /M21218
CABLE DRIVER
* SD/HD on M21218 only
OUTPUT
BUFFER
RSET
212x8-DSH-001-B
Mindspeed Technologies^®
Mindspeed Proprietary and Confidential
SD/HD*
SDO
SDO
April 2007