AD8111AST Analog Devices Inc, AD8111AST Datasheet

IC VIDEO CROSSPOINT SWIT 80LQFP

AD8111AST

Manufacturer Part Number
AD8111AST
Description
IC VIDEO CROSSPOINT SWIT 80LQFP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD8111AST

Rohs Status
RoHS non-compliant
Function
Video Crosspoint Switch
Circuit
1 x 16:8
Voltage Supply Source
Dual Supply
Voltage - Supply, Single/dual (±)
±4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
80-LQFP
Array Configuration
16x8
Number Of Arrays
1
Screening Level
Industrial
Pin Count
80
Package Type
LQFP
Power Supply Requirement
Dual
Lead Free Status / RoHS Status
Not Compliant

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a
PRODUCT DESCRIPTION
The AD8110 and AD8111 are high-speed 16 × 8 video cross-
point switch matrices. They offer a –3 dB signal bandwidth
greater than 260 MHz, and channel switch times of less than
25 ns with 1% settling. With –78 dB of crosstalk and –97 dB
isolation (@ 5 MHz), the AD8110/AD8111 are useful in many
high-speed applications. The differential gain and differential
Patent pending.
phase of better than 0.02% and 0.02° respectively, along with
0.1 dB flatness out to 60 MHz, make the AD8110/AD8111
ideal for video signal switching.
The AD8110 and AD8111 include eight independent output
buffers that can be placed into a high impedance state for paral-
leling crosspoint outputs so that off channels do not load the
output bus. The AD8110 has a gain of +1, while the AD8111
offers a gain of +2. They operate on voltage supplies of ± 5 V
while consuming only 50 mA of idle current. The channel
switching is performed via a serial digital control (which can
accommodate “daisy chaining” of several devices) or via a parallel
control, allowing updating of an individual output without repro-
gramming the entire array.
The AD8110/AD8111 is packaged in an 80-lead LQFP package
and is available over the extended industrial temperature range
of –40°C to +85°C.
16 INPUTS
UPDATE
DATA IN
RESET
CLK
CE
Video Crosspoint Switches
260 MHz, 16
AD8110/AD8111
FUNCTIONAL BLOCK DIAGRAM
SER/PAR
8
PARALLEL LATCH
40-BIT SHIFT REGISTER
5:16 DECODERS
PARALLEL LOADING
AD8110/AD8111
D0 D1 D2 D3 D4
DECODE
SWITCH
MATRIX
WITH 5-BIT
40
40
128
OUTPUT
BUFFER
G = +1,
G = +2
SET INDIVIDUAL
OR RESET ALL
OUTPUTS
TO "OFF"
8 Buffered
8
A0
A1
A2
DATA
OUT
8 OUTPUTS

Related parts for AD8111AST

AD8111AST Summary of contents

Page 1

PRODUCT DESCRIPTION The AD8110 and AD8111 are high-speed 16 × 8 video cross- point switch matrices. They offer a –3 dB signal bandwidth greater than 260 MHz, and channel switch times of less than 25 ns with 1% settling. ...

Page 2

AD8110/AD8111–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE –3 dB Bandwidth Propagation Delay Slew Rate Settling Time Gain Flatness NOISE/DISTORTION PERFORMANCE Differential Gain Error Differential Phase Error Crosstalk, All Hostile Off Isolation, Input-Output Input Voltage Noise DC PERFORMANCE Gain Error Gain Matching Gain Temperature ...

Page 3

TIMING CHARACTERISTICS (Serial) Parameter Serial Data Setup Time CLK Pulsewidth Serial Data Hold Time CLK Pulse Separation, Serial Mode CLK to UPDATE Delay UPDATE Pulsewidth CLK to DATA OUT Valid, Serial Mode Propagation Delay, UPDATE to Switch On or Off ...

Page 4

AD8110/AD8111 TIMING CHARACTERISTICS (Parallel) Parameter Data Setup Time CLK Pulsewidth Data Hold Time CLK Pulse Separation CLK to UPDATE Delay UPDATE Pulsewidth Propagation Delay, UPDATE to Switch On or Off CLK, UPDATE Rise and Fall Times RESET Time 1 CLK ...

Page 5

... Temperature Model Range AD8110AST –40°C to +85°C AD8111AST –40°C to +85°C AD8110-EB AD8111-EB CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD8110/AD8111 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges ...

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AD8110/AD8111 CE UPDATE CLK DATA Data D4 PARALLEL D1 DATA ...

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Pin Name Pin Numbers INxx 66, 68, 70, 72, 74, 76, 78 11, 13, 15, 64 DATA IN 57 CLK 58 DATA OUT 59 UPDATE 56 RESET SER/PAR 55 OUTyy 41, 38, ...

Page 8

AD8110/AD8111 IN08 1 AGND 2 IN09 3 AGND 4 IN10 5 AGND 6 IN11 7 AGND 8 9 IN12 AGND 10 IN13 11 AGND 12 IN14 13 AGND 14 IN15 15 AGND 16 AVEE 17 AVCC 18 AVCC07 19 20 ...

Page 9

Typical Performance Characteristics–AD8110/AD8111 150 FLATNESS 1 0 GAIN –1 2V p-p –2 –3 100k 1M 10M 100M FREQUENCY – Hz – –40 –50 –60 ALL HOSTILE –70 ADJACENT –80 ...

Page 10

AD8110/AD8111 FLATNESS 1 0 GAIN –1 2V p-p –2 –3 100k 1M 10M FREQUENCY – Hz – –30 –40 –50 ADJACENT –60 –70 –80 ALL HOSTILE –90 –100 –110 0 ...

Page 11

R = 150 10k 100k 1M FREQUENCY Hz 100 56.3 31.6 17 5.63 3.16 10 100 1k 10k 100k FREQUENCY Hz 1M 100k 10k 1k 100 0 FREQUENCY ...

Page 12

AD8110/AD8111 – 150 L –40 –50 –60 –70 –80 10k 100k FREQUENCY – Hz 100 56.3 31.6 17.8 10 5.63 3.16 10 100 1k 10k FREQUENCY 100k 10k 1k 100 10 0 FREQUENCY 1M 10M –40 ...

Page 13

FREQUENCY – 200mV p 150 18pF = 7.7dB 6 4 12pF = 4.5dB 2 0 –2 –4 0.1M 1M ...

Page 14

AD8110/AD8111 10M 1M 100k 10k 1k 100 30k 100k 1M 10M FREQUENCY – –2 –4 –6 0.1M 1M 10M FREQUENCY – 100mV IN 0 150 L ...

Page 15

THEORY OF OPERATION The AD8110 (G = +1) and AD8111 (G = +2) share a common core architecture consisting of an array of 128 transconductance (gm) input stages organized as eight 16:1 multiplexers with a common, 16-line analog input bus. ...

Page 16

AD8110/AD8111 This will ensure that the programming matrix is always in a known state. From then on, parallel programming can be used to modify a single output or more at a time similar fashion, if both CE and ...

Page 17

The basic concept in constructing larger crosspoint arrays is to connect inputs in parallel in a horizontal direction and to “wire-OR” the outputs together in the vertical direction. The meaning of horizontal and vertical can best be understood by looking ...

Page 18

AD8110/AD8111 Multichannel Video The excellent video specifications of the AD8110/AD8111 make them ideal candidates for creating composite video crosspoint switches. These can be made quite dense by taking advantage of the AD8110/AD8111’s high level of integration and the fact that ...

Page 19

Measuring Crosstalk Crosstalk is measured by applying a signal to one or more channels and measuring the relative strength of that signal on a desired selected channel. The measurement is usually expressed as dB down from the magnitude of the ...

Page 20

AD8110/AD8111 From a circuit standpoint, this output crosstalk mechanism looks like a transformer with a mutual inductance between the windings that drives a load resistor. For low frequencies, the magnitude of the crosstalk is given by × XT ...

Page 21

DVCC DGND NC AVEE AGND AVCC NC P1-7 P1-1 P1-2 P1-3 P1-4 P1-5 P1 CR1 CR2 + INPUT 00 INPUT 00 65 AGND 75 66 ...

Page 22

AD8110/AD8111 ...

Page 23

AD8110/AD8111 ...

Page 24

AD8110/AD8111 The three power supply pins AVCC, DVCC, and AVEE should be connected to good quality, low noise, ± supplies. Where the same ± power supplies are used for analog and digital, separate cables should be ...

Page 25

Figure 16 shows the main screen of the control software in its initial reset state (all outputs off). Using the mouse, any input can be connected with one or more outputs by simply clicking on the appropriate radio buttons in ...

Page 26

AD8110/AD8111 0.030 (0.75) 0.020 (0.50) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 80-Lead Plastic LQFP (ST-80A) 0.559 (14.20) 0.063 (1.60) 0.543 (13.80) MAX 0.476 (12.10) 0.469 (11.90 SEATING PLANE TOP VIEW (PINS DOWN) 0.003 (0.08 ...

Page 27

Revision History Location Data Sheet changed from REV REV. A. Universal change in nomenclature from MQFP to LQFP Comment added to OUTLINE DIMENSIONS . . . . . . . . . . . . . . . ...

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