33 ꢀ 17, 1.5 Gbps
Digital Crosspoint Switch
a
AD8150*
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Low Cost
CS
RE
33 ꢀ 17, Fully Differential, Nonblocking Array
>1.5 Gbps per Port NRZ Data Rate
Wide Power Supply Range: +5 V, +3.3 V, –3.3 V, –5 V
Low Power
400 mA (Outputs Enabled)
30 mA (Outputs Disabled)
PECL and ECL Compatible
CMOS/TTL-Level Control Inputs: 3 V to 5 V
Low Jitter: <50 ps p-p
INN
INP
33
33
D
A
7
5
OUTP
OUTN
17
17
33ꢀ17
FIRST
RANK
17ꢀ7-BIT
LATCH
SECOND
RANK
17ꢀ7-BIT
LATCH
DIFFERENTIAL
SWITCH
MATRIX
No Heat Sinks Required
WE
Drives a Backplane Directly
Programmable Output Current
Optimize Termination Impedance
User-Controlled Voltage at the Load
Minimize Power Dissipation
Individual Output Disable for Busing and Building
Larger Arrays
AD8150
UPDATE
RESET
Double Row Latch
Buffered Inputs
Available in 184-Lead LQFP
APPLICATIONS
HD and SD Digital Video
Fiber Optic Network Switching
PRODUCT DESCRIPTION
500mV
AD8150 is a member of the X stream line of products and is
a breakthrough in digital switching, offering a large switch array
(33 × 17) on very little power, typically less than 1.5 W. Addi-
tionally, it operates at data rates in excess of 1.5 Gbps per port,
making it suitable for HDTV applications. Further, the pric-
ing of the AD8150 makes it affordable enough to be used for
SD applications as well. The AD8150 is also useful for OC-24
optical network switching.
100mV
/DIV
The AD8150’s flexible supply voltages allow the user to operate
with either PECL or ECL data levels and will operate down to
3.3 V for further power reduction. The control interface is CMOS/
TTL compatible (3 V to 5 V).
–500mV
100ps/DIV
Its fully differential signal path reduces jitter and crosstalk while
allowing the use of smaller single-ended voltage swings.
Figure 1. Output Eye Pattern, 1.5 Gbps
The AD8150 is offered in a 184-lead LQFP package that operates
over the industrial temperature range of 0°C to 85°C.
*Patent Pending.
X stream is a trademark of Analog Devices, Inc.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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Tel: 781/329-4700
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© Analog Devices, Inc., 2000