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.
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
Standards Compliance
• SMPTE 292M, 259M, 344M
Functional Block Diagram
AV
DD
2.5V - 3.3V and
BIAS CIRCUITRY
SD/HD*
SDI
SDI
INPUT
BUFFER
OUTPUT
BUFFER
SDO
SDO
M21208 /M21218
CABLE DRIVER
RSET
* SD/HD on M21218 only
212x8-DSH-001-B
Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
April 2007
Ordering Information
Part Number
M21208G-xx*
M21218G-xx*
Data Rates Supported
143–540 Mbps
143–1485 Mbps
Package
SOIC—8 pin
SOIC—8 pin
Operating Temperature
-10
°
C to 85
°
C
-10
°
C to 85
°
C
* Consult the Mindspeed price list for exact part number when ordering.
* The letter “G” designator after the part number indicates that the device is RoHS-compliant. Refer to www.mindspeed.com for additional
information. This device is backward compatible with existing 225
°
C reflow profiles.
Revision History
Revision
B
Level
Release
Date
April 2007
Updated ordering information.
Description
Modified text in
Section 1.2.2
to indicate that RSET must be used.
SD/HD changed to pull-up in
Table 1-2.
DCD figure changed in
Table 2-6
and
Table 2-7.
A
Release
February 2007
Production Release.
Combined M21208 and M21218 data sheets (21208-DSH-001-A and 21218-DSH-002-A).
Changed maximum output swing to 1600 mV.
Removed 1.8V operation.
Updated
Tables 1-1, 2-2, 2-3,
and
2-7.
212x8-DSH-001-B
Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
ii
Table of Contents
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
1.0
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1
1.2
General Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2.1
HD-SDI and SD-SDI Slew-rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2.2
Output Amplitude Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.3.1
1.3.2
1.3.3
High-speed Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
High-speed Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
M21208/M21218 Pin List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3
2.0
Product Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
2.2
2.3
2.4
2.5
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
DC Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Input/Output Level Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Package Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.5.1
Mechanical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.5.1.1
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
A.1
A.2
Glossary of Terms/Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
A.2.1
External . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
212x8-DSH-001-B
Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
iii
List of Figures
Figure 1-1.
Figure 1-2.
Figure 1-3.
Figure 1-4.
Figure 1-5.
Figure 2-1.
Figure 2-2.
Typical Input Circuit—AC Coupled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Typical Input Circuit—DC Coupled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Typical Output Matching/Back-termination circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
M21208 Pin Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
M21218 Pin Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Output Symbols Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
212x8-DSH-001-B
Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
iv
List of Tables
Table 1-1.
Table 1-2.
Table 1-3.
Table 1-4.
Table 2-1.
Table 2-2.
Table 2-3.
Table 2-4.
Table 2-5.
Table 2-6.
Table 2-7.
Table A-1.
Output Swing vs. Supply and Termination Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Interface Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Power Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
High-speed Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Power DC Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
CMOS Input Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
High-Speed Input Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Cable Driver Output Electrical Specifications M21208 (SD only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Cable Driver Output Electrical Specifications M21218 (SD/HD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Glossary and Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
212x8-DSH-001-B
Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
v
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