200 MHz, 16 ؋
16 Buffered
a
Video Crosspoint Switch
AD8116
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Large 16 ؋
16 High Speed Nonblocking Switch Array
Switch Array Controllable via an 80-Bit Serial Word
Serial Data Out Allows “Daisy Chaining” of Multiple
AD8116s to Create Large Switch Arrays Over 256 ؋
256
Complete Solution
Buffered Inputs
16 Individual Output Amplifiers
Drives 150 ⍀ Loads
AD8116
CLK
CLK
DATA IN
DATA OUT
80-BIT SHIFT REG.
80
UPDATE
CE
UPDATE
CE
Excellent Video Performance
PARALLEL LATCH
60 MHz 0.1 dB Gain Flatness
RESET
RESET
0.01% Differential Gain Error (RL = 150 ⍀)
0.01؇ Differential Phase Error (RL = 150 ⍀)
Excellent AC Performance
200 MHz –3 dB Bandwidth
300 V/s Slew Rate
Low Power of 900 mW (3.5 mW per Point)
Low All Hostile Crosstalk of –70 dB @ 5 MHz
Output Disable Allows Direct Connection of Multiple
Device Outputs
80
16
DECODE
256
OUTPUT
BUFFER
+1
+1
+1
+1
+1
SWITCH
MATRIX
+1
+1
Chip Enable Allows Selection of Individual AD8116s in
Large Arrays (or Parallel Programming of AD8116s)
Reset Pin Allows Disabling of All Outputs (Connected
Through a Capacitor to Ground Provides “Power-
On” Reset Capability)
16 OUTPUTS
+1
16 INPUTS
+1
+1
+1
+1
+1
+1
+1
128-Lead LQFP Package (14 mm ؋
14 mm)
+1
APPLICATIONS
Routing of High Speed Signals Including:
Composite Video (NTSC, PAL, S, SECAM, etc.)
Component Video (YUV, RGB, etc.)
3-Level Digital (HDB3)
Video on Demand
Ultrasound
4
0.5
R
= 50⍀
L
3
2
1
0.4
0.3
0.2
Communication Satellites
200mV p-p
0
–1
–2
–3
–4
0.1
0
PRODUCT DESCRIPTION
FLATNESS
2V p-p
The AD8116 is a high speed 16 × 16 video crosspoint switch
matrix. It offers a –3 dB signal bandwidth greater than 200 MHz
and channel switch times of 60 ns with 0.1% settling. With –70 dB
of crosstalk and –105 dB of isolation (@ 5 MHz), the AD8116
is useful in many high speed applications. The differential gain
and differential phase errors of better than 0.01% and 0.01°,
respectively, along with 0.1 dB flatness out to 60 MHz make the
AD8116 ideal for video signal switching.
–0.1
–0.2
–0.3
2V p-p
200mV p-p
1M
10M
FREQUENCY – Hz
100M
1G
100k
Figure 1. Frequency Response
The AD8116 includes output buffers that can be placed into a
high impedance state for paralleling crosspoint outputs so that
off channels do not load the output bus. It operates on voltage
supplies of 5 V while consuming only 90 mA of idle current.
The channel switching is performed via a serial digital control
that can accommodate “daisy chaining” of several devices.
The AD8116 is packaged in a 128-lead LQFP package occupy-
ing only 0.36 square inches, and is specified over the commer-
cial temperature range of 0°C to 70°C.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
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., 2001