• Input equalization for up to 36" of FR4 + 2 connectors
• Integrated, selectable 75 or 50 output termination
• Integrated 50 input termination
• Integrated 2x2 crosspoint switch with broadcast mode
• On-chip regulators for operation from 1.8V to 3.3V DC supply
• Universal DC coupling at the input, from 1.2V to 3.3V
• Cable detect with automatic power down and power up upon cable disconnect
and re-connect
• Loss of input signal detection
• Independent channel mute and power down
• Industrial operating temperature range: -40°C to 85°C
• 4 kV HBM and 500V CDM ESD rating
• 4 mm x 4 mm 24 pin QFN package
• Green and RoHS compliant
Rev V4
Features
• Dual channel cable driver
• Two pairs of non-inverting, SMPTE compliant outputs
• Typical output jitter of 12 ps peak–to–peak at 2.97 Gbps
• Exceptional Output Return Loss with no matching network
• Very low power design; 40 mW/channel @1.8V
• Selectable slew rate for SD and 3G/HD operation
The M21528 is a very low power, highly integrated, dual cable driver for SMPTE compliant digital video applications. It can drive 2 pairs
of 75 coaxial cables, or 50 equivalent loads, at SDI data rates from 270 Mbps to 2.97 Gbps. The device is capable of outputting SDI
signals with typical jitter values of 12 ps
peak–to–peak,
when operating at 2.97 Gbps.
The dual cable driver includes a 2x2 input crosspoint and integrated input and output termination resistors. The M21528, with input
equalization for up to 36" of FR4 trace in addition to two connectors and exceptional Output Return Loss (ORL), is ideal for high speed,
3G-SDI, designs.
The device features integrated supply regulators, allowing it to be powered from 1.8V, 2.5V, or 3.3V supply voltages. When operating at
1.8V, it consumes only 40 mW per channel at 2.97 Gbps. Furthermore, the power rails for the input and output circuitry are electrically
isolated on-chip and as such may be connected to different voltage rails on the board. This feature enables the M21528 to be DC cou-
pled to any upstream device in the 1.2V to 3.3V range.
The integrated 2x2 crosspoint allows for either input to be routed to either output, eliminating the need for an external multiplexer. Addi-
tionally, one input may be routed to both outputs. The cable driver also provides cable detect and Loss of Signal (LOS) functionality. It
can be configured to automatically power down at cable disconnect or loss of input signal.
The M21528 is offered in a green and RoHS compliant 24 pin QFN package.
M21528 Block Diagram
75Ω/50Ω
LOS
SDO0A
SDI0P
SDI0N
IE
2x2
Crosspoint
75Ω/50Ω
SDO0B
SDI1P
SDI1N
IE
75Ω/50Ω
SDO1A
LOS
75Ω/50Ω
SDO1B
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.
For further information and support please visit:
http://www.macom.com/support
M21528-13
Dual 3G/HD/SD-SDI Multi-rate Video Cable Driver
Rev V4
Ordering Information
Part Number
M21528G-13
Package
4 mm x 4 mm 24-pin QFN (RoHS compliant)
Operating Temperature
–40
°
C to 85
°
C
* The letter “G” designator after the part number indicates that the device is RoHS compliant. The RoHS compliant devices are backwards compatible with 225 °C
reflow profiles.
Revision History
Revision
V4
V3
Level
Release
Release
Date
December 2015
May 2015
Added footnotes to
Figure 3-7.
Description
Revised Z_CTRL resistor value for 75 output impedance in
Table 3-1.
Revised
Section 4.3.
Updated Marking Diagram.
Updated
Figure 3-7
with new package diagram.
Corrected
Figure 3-7
center pad dimensions.
Revised
Table 1-5;
DRIN min, JAO 3G, HD max.
Added marking diagram.
Added Eye Diagams in
Section 2.0.
Revised typical and Maximum values in
Table 1-3.
Revised
Table 1-4.
Revised
Figure 3-2
and
Figure 3-3.
Added Note 5 to
Table 1-5.
Removed Note 2 from
Table 3-1
(2-state/I-Digital inputs have an internal 100K resistor to
AV
DD
I).
Revised
Figure 4-3, Figure 4-4, Figure 4-5.
Added input/output circuits in
Section 3.0.
Major revisions throughout document.
Initial Release.
E (V2)
D (V1)
Release
Release
March 2010
December 2009
C (V1P)
Preliminary
May 2009
B (V2A)
A (V1A)
Advance
Advance
February 2009
June 2008
M21528 Marking Diagram
52813
XXXX .X
YYWWCO
Part Number
Lot Number
Date Country of Origin
2
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.
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.
For further information and support please visit:
http://www.macom.com/support
M21528-13
Dual 3G/HD/SD-SDI Multi-rate Video Cable Driver
Rev V4
1.0 Electrical Characteristics
Unless noted otherwise, specifications apply for typical recommended operating conditions shown in
Table 1-2,
with AV
DD
O = 1.8V, AV
DD
I = 1.2V, CML inputs at 800 mV differential (RL = 50), PRBS 2
15
– 1 test pattern at 2.97
Gbps.
Table 1-1.
Symbol
AV
DD
I
AV
DD
O0/1
T
ST
ESD
ESD
LU
HSIC
HSOC
V
INMAX
Analog supply for input circuitry
Analog supply for output circuitry
Storage Temperature
Human Body Model (HBM)
Charge Device Model (CDM)
Latch Up @ 85ºC
Maximum High-speed input current
Maximum High-speed output short circuit current
Input voltage range
Absolute Maximum Ratings
Parameter
Note
1
1
1
1
1
1
1
1
1
Minimum
-0.5
-0.5
-65
-4
-500
-200
-100
-100
-0.5
Typical
—
—
—
—
—
—
—
—
—
Maximum
3.6
3.6
150
4
500
200
100
100
AV
DD
I+0.5
Unit
V
V
ºC
KV
V
mA
mA
mA
V
NOTES:
1.
Exposure to these conditions over extended periods of time may affect device reliability
Table 1-2.
Symbol
AV
DD
I
AV
DD
O0/1
T
CASE
ESD
Recommended Operating Conditions
Parameter
Analog supply for input circuitry
Analog supply for output circuitry
Operating temperature
Human Body Model (HBM)
Note
—
—
1
—
Minimum
1.14
1.71
-40
-4
Typical
1.2, 1.8,
2.5, or 3.3
1.8, 2.5, or
3.3
25
—
Maximum
3.465
3.465
+85
4
Unit
V
V
o
C
kV
NOTES:
1.
Case temperature.
4
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.
For further information and support please visit:
http://www.macom.com/support
M21528-13
Dual 3G/HD/SD-SDI Multi-rate Video Cable Driver
Rev V4
Table 1-3.
Symbol
P
DISS
Power Consumption Specifications
Parameter
Total power consumption
AV
DD
I = 1.2V
AV
DD
O = 1.8V
Both channels active, 4 outputs on
AV
DD
I = 1.2V
AV
DD
O = 1.8V
Both channels active, one output per channel
on
AV
DD
I = 1.2V
AV
DD
O = 1.8V
One channel active, one output on
1
—
1
1
1
1,2
1,2
1,2
3
—
—
—
—
—
—
—
1
3
10
43
43
27
63
3.0
7.0
17.0
68.0
68.0
49.0
—
mA
mA
mA
mA
mA
mA
o
Conditions
Note
1
Minimum
—
Typical
78
Maximum
122
Unit
mW
1
—
61
95
mW
49
86
mW
I_ AV
DD
I
I_ AV
DD
I
I_ AV
DD
I
I_ AV
DD
O
I_ AV
DD
O
I_ AV
DD
O0
Total AV
DD
I supply current
Total AV
DD
I supply current
Total AV
DD
I supply current
Total AV
DD
O supply current
Total AV
DD
O supply current
Total AV
DD
O0 supply current
Junction to ambient Thermal
Resistance
AV
DD
I = 1.2V
AV
DD
I = 1.8V
AV
DD
I = 3.3V
Both channels active
Only channel 0 active
Only channel 1 active
θ
JA
NOTES:
1.
2.
3.
C/W
Recommended operating condition—see
Table 1-2.
Current consumption does not change with AV
DD
O = 1.8V, 2.5V or 3.3V.
Airflow = 0 m/s.
Table 1-4.
Symbol
V
IH
V
IF
V
IL
I
IH
I
IL
Digital Input Specifications
Parameter
Input Logic High
Input Logic Floating State
Input Logic Low
Input Current—Logic High
Input Current—Logic Low
Note
—
—
—
—
—
Minimum
0.85 x AV
DD
I
0.25 x AV
DD
I
0
-100
-100
Typical
—
—
—
—
—
Maximum
AV
DD
I + 0.5
0.75 x AV
DD
I
0.15 x AV
DD
I
100
100
Unit
V
V
V
A
A
5
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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