ANALOG DEVICES ADV3205 Service Manual

60 MHz, G = +2, 16 × 16
Data Sheet

FEATURES

16 × 16 high speed nonblocking switch array Serial or parallel programming of switch array Serial data out allows daisy-chaining control of multiple
16 × 16 devices to create larger switch arrays
Complete solution
Buffered inputs 16 output amplifiers Operates on ±5 V supplies Low supply current of 50 mA
Excellent video performance, V
−3 dB bandwidth: 60 MHz
0.1 dB gain flatness: 10 MHz
0.1% differential gain error (R
0.1° differential phase error (R Low all hostile crosstalk: −67 dB at 5 MHz Output disable allows connection of multiple devices
without loading the output bus
RESET
pin allows disabling of all outputs
Power-on reset capability with capacitor to ground
100-lead LQFP (14 mm × 14 mm)

APPLICATIONS

CCTV surveillance Video routers (NTSC, PAL, S-Video, SECAM) Video conferencing
= ±5 V
S
= 1 kΩ)
L
= 1 kΩ)
L
Buffered Analog Crosspoint Switch
ADV3205

FUNCTIONAL BLOCK DIAGRAM

SER/PAR
CLK
DATA IN
UPDATE
CE
RESET
ADV3205
16 INPUTS
D0 D1 D2 D3
80-BIT SHIFT REGISTER
WITH 5-BIT
PARALLEL L OADING
80
PARALLEL L ATCH
80
DECODE
16 × 5:16 DECODERS
256
SWITCH MATRIX
Figure 1.
D4
OUTPUT BUFFER
G = +2
SET INDIVIDUAL OR RESET ALL OUTPUTS TO “OFF”
16
ENABLE/DIS ABLE
A0
A1
A2 A3
DATA OUT
16 OUTPUTS
10342-001

GENERAL DESCRIPTION

The ADV3205 is a fully buffered crosspoint switch matrix that operates on ±5 V, making it ideal for video applications. It offers a −3 dB signal bandwidth of 60 MHz and channel switch times of less than 60 ns with 0.1% settling. The ADV3205 has excellent crosstalk performance, and ground/power pins surround all inputs and outputs to provide extra shielding required for the most demanding applications. The differential gain and differential phase of better than 0.1% and 0.1°, respectively, along with 0.1 dB flatness out to 10 MHz, make the ADV3205 an excellent choice for many video applications.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
The ADV3205 includes 16 independent output buffers that can be placed into a disabled state for paralleling crosspoint outputs. The ADV3205 has a gain of +2 and operates on voltage supplies of ±5 V while consuming only 34 mA of current. 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 reprogramming the entire array.
The ADV3205 is packaged in a 100-lead LQFP and is available over the commercial temperature range of 0°C to 70°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2011 Analog Devices, Inc. All rights reserved.
ADV3205 Data Sheet

TABLE OF CONTENTS

Features.............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics (Serial Mode) ....................................... 4
Timing Characteristics (Parallel Mode).................................... 5
Absolute Maximum Ratings............................................................ 6
Power Dissipation......................................................................... 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Truth Table and Logic Diagram ................................................. 9
Typical Performance Characteristics ........................................... 10
Circuit Diagrams ............................................................................ 13
Theory of Operation ...................................................................... 14
Short-Circuit Output Conditions............................................. 14
Applications Information.............................................................. 15
Serial Programming................................................................... 15
Parallel Programming................................................................ 15
Power-On Reset.......................................................................... 16
Managing Video Signals............................................................ 16
Creating Larger Crosspoint Arrays.......................................... 16
Multichannel Video ................................................................... 17
Crosstalk...................................................................................... 17
Outline Dimensions....................................................................... 20
Ordering Guide .......................................................................... 20

REVISION HISTORY

12/11—Revision 0: Initial Version
Rev. 0 | Page 2 of 20
Data Sheet ADV3205

SPECIFICATIONS

TA = 25°C, VS = ±5 V, RL = 150 , unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth V
V Gain Flatness 0.1 dB, V Propagation Delay V Settling Time 0.1%, 2 V output step 23 ns Slew Rate 2 V output step 100 V/μs
NOISE/DISTORTION PERFORMANCE
Differential Gain Error NTSC, RL = 1 kΩ 0.1 % Differential Phase Error NTSC, RL = 1 kΩ 0.1 Degrees Crosstalk, All Hostile f = 5 MHz −67 dB Off Isolation f = 5 MHz, one channel −100 dB Input Voltage Noise 0.1 MHz to 10 MHz 12 nV/√Hz
DC PERFORMANCE
Gain Error 0.5 % Gain Matching Channel-to-channel 0.7 % Gain Temperature Coefficient 20 ppm/°C
OUTPUT CHARACTERISTICS
Output Resistance Enabled 0.3 Ω Disabled 3.4 4 kΩ Output Capacitance Disabled 5 pF Output Voltage Swing No Load ±3.2 ±3.5 V I Short-Circuit Current 55 mA
INPUT CHARACTERISTICS
Input Offset Voltage All configurations ±5 ±10 mV Temperature coefficient 10 μV/°C Input Voltage Range No load ±1.5 V Input Capacitance Any switch configuration 4 pF Input Resistance Any number of connected outputs 50 MΩ Input Bias Current Any number of enabled inputs ±1 μA
SWITCHING CHARACTERISTICS
Enable On Time 80 ns Switching Time, 2 V Step 50% update to 1% settling 50 ns Switching Transient (Glitch) 20 mV p-p
POWER SUPPLIES
Supply Current AVCC outputs enabled, no load 45 50 mA AVCC outputs disabled 31 35 mA AVEE outputs enabled, no load 45 50 mA AVEE outputs disabled 31 35 mA DVCC outputs enabled, no load 8 13 mA DYNAMIC PERFORMANCE
Supply Voltage Range AVCC 4.5 5.5 V
AVEE −5.5 −4.5 V
DVCC 4.5 5.5 V
PSRR DC 75 80 dB
f = 100 kHz 60 dB
f = 1 MHz 40 dB
= 200 mV p-p 41 60 MHz
OUT
= 2 V p-p 25 MHz
OUT
= 200 mV p-p 10 MHz
OUT
= 2 V p-p 20 ns
OUT
= 20 mA ±2.7 ±3 V
OUT
Rev. 0 | Page 3 of 20
ADV3205 Data Sheet
T
Parameter Test Conditions/Comments Min Typ Max Unit
OPERATING TEMPERATURE RANGE
Temperature Range Operating (still air) 0 70 °C θJA Operating (still air) 40 °C/W

TIMING CHARACTERISTICS (SERIAL MODE)

Table 2.
Limit Parameter Symbol Min Typ Max Unit
Serial Data Setup Time t1 20 ns CLK Pulse Width t2 100 ns Serial Data Hold Time t3 20 ns CLK Pulse Separation, Serial Mode t4 100 ns
t
CLK-to-UPDATE Delay UPDATE Pulse Width CLK-to-DATA OUT Valid, Serial Mode t7 200 ns Propagation Delay, UPDATE to Switch On or Off Data Load Time, CLK = 5 MHz, Serial Mode 16 μs CLK, UPDATE Rise and Fall Times RESET Time
CLK
DATA IN
1 = LATCHED
UPDATE
0 = TRANSPARE N
t
1
0
1
0
t1t
OUT07 (D4)
2
3
t
7
t
4
OUT07 (D3)
0 ns
5
t
50 ns
6
50 ns
100 ns 200 ns
LOAD DATA INTO SERIAL REGISTER ON FALLING EDGE
OUT00 (D0)
t
5
TRANSFER DATA FROM SERIAL
REGISTER TO PARALLEL
LATCHES DURI NG LOW LEVEL
t
6
DATA OUT
Figure 2. Timing Diagram, Serial Mode
10342-002
Table 3. Logic Levels
VIH VIL VOH VOL IIH IIL IOH IOL
RESET, SER/PAR CLK, DATA IN, CE UPDATE
,
, SER/PAR
RESET CLK, DATA IN, CE UPDATE
,
DATA OUT DATA OUT
, SER/PAR
RESET CLK, DATA IN, CE UPDATE
RESET
,
CLK, DATA IN, CE UPDATE
, SER/PAR
,
DATA OUT DATA OUT
2.0 V min 0.8 V max 2.7 V min 0.5 V max 20 μA max −400 μA min −400 μA max 3.0 mA min
Rev. 0 | Page 4 of 20
Data Sheet ADV3205
0
T

TIMING CHARACTERISTICS (PARALLEL MODE)

Table 4.
Limit Parameter Symbol Min Max Unit
Parallel Data Setup Time t1d 20 ns Address Setup Time t1a 20 ns CLK Enable Width t2 100 ns Parallel Data Hold Time t3d 20 ns Address Hold Time t3a 20 ns CLK Pulse Separation t4 100 ns
t
CLK-to-UPDATE Delay UPDATE Pulse Width Propagation Delay, UPDATE to Switch On or Off CLK, UPDATE Rise and Fall Times RESET Time
1
CLK
0
1
A0 TO A3
0
1
D0 TO D4
0
1 = LATCHED
UPDATE
= TRANSPAREN
t
2
t
1a
t
1d
t
3a
t
3d
Figure 3. Timing Diagram, Parallel Mode
t
4
0 ns
5
t
50 ns
6
50 ns 100 ns 200 ns
t
t
5
6
10342-003
Table 5. Logic Levels
VIH VIL VOH VOL IIH IIL I
RESET, SER/PAR CLK, D0, D1, D2,
D3, D4, A0, A1, A2, A3, CE, UPDATE
RESET, SER/PAR CLK, D0, D1, D2,
D3, D4, A0, A1, A2, A3, CE, UPDATE
DATA OUT DATA OUT
RESET, SER/PAR CLK, D0, D1, D2,
D3, D4, A0, A1, A2, A3, CE, UPDATE
RESET, SER/PAR CLK, D0, D1, D2,
D3, D4, A0, A1, A2, A3, CE, UPDATE
I
OH
OL
DATA OUT DATA OUT
2.0 V min 0.8 V max 2.7 V min 0.5 V max 20 μA max −400 μA min −400 μA max 3.0 mA min
Rev. 0 | Page 5 of 20
ADV3205 Data Sheet

ABSOLUTE MAXIMUM RATINGS

Table 6.
Parameter Rating
Analog Supply Voltage (AVCC to AVEE) 12 V Digital Supply Voltage (DVCC to DGND) 6 V Ground Potential Difference (AGND to
±0.5 V
DGND) Internal Power Dissipation Analog Input Voltage
1
2
3.1 W
Maintain linear output Digital Input Voltage DVCC Output Voltage (Disabled Output)
(AV
(AV
CC
EE
− 1.5 V) to
+ 1.5 V) Output Short-Circuit Duration Momentary Storage Temperature Range −65°C to +125°C Lead Temperature (Soldering 10 sec) 300°C
1
Specification is for device in free air (TA = 25°C):
100-lead plastic LQFP: θJA = 40°C/W.
2
To avoid differential input breakdown, in no case should one-half the output
voltage (1/2 V differential. See the output voltage swing parameter in Table 1 for the linear output range.
) and any input voltage be greater than 10 V potential
OUT
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

POWER DISSIPATION

Packaged in a 100-lead LQFP, the ADV3205 junction-to-ambient thermal impedance (θ the maximum allowed junction temperature of the plastic encapsulated die should not exceed 150°C. Temporarily exceeding this limit may cause a shift in parametric performance due to a change in the stresses exerted on the die by the package. Exceeding a junction temperature of 175°C for an extended period can result in device failure.
The maximum ADV3205 power dissipation occurs when all outputs are enabled and driving loads. Supply current increases approximately linearly with the number of outputs that are enabled. Refer to the Theory of Operation section for more details regarding power dissipation calculations. Figure 4 indicates the maximum
ADV3205 power dissipation as a function of ambient temperature.
4.0
3.5
3.0
MAXIMUM POWER (W)
2.5
) is 40°C/W. For long-term reliability,
JA
TJ = 150°C
2.0
Figure 4. Maximum Power Dissipation vs. Ambient Temperature
100 20304050607
AMBIENT TEMPERATURE (°C)
10342-004
0

ESD CAUTION

Rev. 0 | Page 6 of 20
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