EVAL-ADG791GEB

Manufacturer Part NumberEVAL-ADG791GEB
DescriptionBOARD EVAL FOR ADG791
ManufacturerAnalog Devices Inc
EVAL-ADG791GEB datasheets

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Specifications of EVAL-ADG791GEB

Main PurposeInterface, 2:1 MultiplexerEmbeddedNo
Utilized Ic / PartADG791Primary Attributes4 x SPDT Analog Switch
Secondary Attributes2.7 V ~ 5.5 V SupplyLead Free Status / RoHS StatusContains lead / RoHS non-compliant
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FEATURES
Bandwidth: 325 MHz
Low insertion loss and on resistance: 2.6 Ω typical
On resistance flatness: 0.3 Ω typical
Single 3 V/5 V supply operation
3.3 V analog signal range (5 V supply, 75 Ω load)
Low quiescent supply current: 1 nA typical
Fast switching times: t
= 186 ns, t
ON
OFF
2
I
C®-compatible interface
Compact 24-lead LFCSP
ESD protection
4 kV human body model (HBM)
200 V machine model (MM)
1 kV field-induced charged device model (FICDM)
APPLICATIONS
S-video RGB/YPbPr video switches
HDTVs
Projection TVs
DVD-R/RW
AV receivers
GENERAL DESCRIPTION
The ADG791A/ADG791G are monolithic CMOS devices
comprising four 2:1 multiplexers/demultiplexers controllable
2
via a standard I
C serial interface. The CMOS process provides
ultralow power dissipation yet gives high switching speed and
low on resistance.
The on-resistance profile is very flat over the full analog input
range and wide bandwidth ensures excellent linearity and low
distortion. These features, combined with a wide input signal
range make the ADG791A/ADG791G the ideal switching
solution for a wide range of TV applications including S-video,
RGB, and YPbPr video switches.
The switches conduct equally well in both directions when on.
In the off condition, signal levels up to the supplies are blocked.
The ADG791A/ADG791G switches exhibit break-before-make
switching action. The ADG791G has one general-purpose logic
2
output pin controlled by the I
C interface that can also be used
2
to control other non-I
C-compatible devices such as video filters.
2
The integrated I
C interface provides a large degree of flexibility
in the system design. It has three configurable I
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 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.
2
I
C-Compatible, Wide Bandwidth,
S1A
S1B
S2A
= 177 ns
S2B
S3A
S3B
S4A
S4B
that allow up to eight devices on the same bus. This allows the
user to expand the capability of the device by increasing the size
of the switching array.
The ADG791A/ADG791G operate from a single 3 V or 5 V
supply voltage and is available in a compact 4 mm × 4 mm
body, 24-lead LFCSP.
PRODUCT HIGHLIGHTS
1.
Wide bandwidth: 325 MHz.
2.
Ultralow power dissipation.
3.
Extended input signal range.
4.
Integrated I
5.
Compact 4 mm × 4 mm, 24-lead, Pb-free LFCSP.
6.
ESD protection tested as per ESD association standards:
4 kV HBM (ANSI/ESD STM5.1-2001)
200 V MM (ANSI/ESD STM5.2-1999)
1 kV FICDM (ANSI/ESDSTM5.3.1-1999)
2
C address pins
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Quad, 2:1 Multiplexer
ADG791A/ADG791G
FUNCTIONAL BLOCK DIAGRAM
V
V
GND
DD
DD
ADG791A
ADG791G
S1A
D1
S1B
S2A
D2
S2B
S3A
D3
S3B
S4A
D4
S4B
2
2
I
C SERIAL
I
C SERIAL
INTERFACE
INTERFACE
A0
A1
A2
SDA
SCL
A0
A1
Figure 1.
2
C serial interface.
©2006 Analog Devices, Inc. All rights reserved.
GND
D1
D2
D3
D4
GPO1
A2
SDA
SCL
www.analog.com

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EVAL-ADG791GEB Summary of contents

  • Page 1

    FEATURES Bandwidth: 325 MHz Low insertion loss and on resistance: 2.6 Ω typical On resistance flatness: 0.3 Ω typical Single 3 V/5 V supply operation 3.3 V analog signal range (5 V supply, 75 Ω load) Low quiescent supply current: ...

  • Page 2

    ... Pin Configurations and Function Descriptions ......................... 10 Typical Performance Characteristics ........................................... 11 Test Circuits..................................................................................... 14 REVISION HISTORY 7/06—Revision 0: Initial Version Terminology .................................................................................... 16 Theory of Operation ...................................................................... Serial Interface ..................................................................... Address.................................................................................. 17 Write Operation.......................................................................... 17 LDSW Bit..................................................................................... 19 Power On/Software Reset.......................................................... 19 Read Operation........................................................................... 19 Evaluation Board ............................................................................ 20 Using the ADG791G Evaluation Board .................................. 20 Outline Dimensions ....................................................................... 23 Ordering Guide .......................................................................... 23 Rev Page ...

  • Page 3

    SPECIFICATIONS ± 10%, GND = −40°C to +85°C, unless otherwise noted Table 1. Parameter ANALOG SWITCH 2 Analog Signal Range On Resistance On-Resistance Matching Between Channels, ∆R ON ...

  • Page 4

    ADG791A/ADG791G Parameter 3 LOGIC OUTPUTS SDA Pin Output Low Voltage Floating-State Leakage Current Floating-State Output Capacitance GPO1 Pin and GPO2 Pin Output Low Voltage Output High Voltage POWER REQUIREMENTS All typical ...

  • Page 5

    ± 10%, GND = −40°C to +85°C, unless otherwise noted Table 2. Parameter ANALOG SWITCH 2 Analog Signal Range On Resistance On-Resistance Matching Between Channels, ∆R ON On-Resistance ...

  • Page 6

    ADG791A/ADG791G Parameter 3 LOGIC OUTPUTS SDA Pin Output Low Voltage Floating-State Leakage Current Floating-State Output Capacitance GPO1 Pin and GPO2 Pin Output Low Voltage Output High Voltage POWER REQUIREMENTS All typical ...

  • Page 7

    I C TIMING SPECIFICATIONS 5.5 V; GND = −40°C to +85°C, unless otherwise noted. See Figure 2 for timing diagram Table 3. 1 Parameter Conditions Min f Standard ...

  • Page 8

    ADG791A/ADG791G 1 Parameter Conditions Min t Standard mode 11A Fast mode 20 + 0.1 C High speed mode C = 100 pF max 400 pF max Standard mode 12 Fast mode 20 + ...

  • Page 9

    ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. Parameter Ratings V to GND −0 Analog, Digital Inputs −0 mA, whichever occurs first Continuous Current ...

  • Page 10

    ADG791A/ADG791G PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS PIN 1 INDICATOR S1A 1 S1B 2 ADG791A D1 3 TOP VIEW D2 4 (Not to Scale) S2B 5 S2A 6 NOTES CONNECT. 2. THE EXPOSED PAD MUST BE TIED ...

  • Page 11

    TYPICAL PERFORMANCE CHARACTERISTICS 3 25° CHANNEL 1MΩ 2 2.7V 1MΩ 2 3.3V 75Ω 1 2.7V, ...

  • Page 12

    ADG791A/ADG791G 25°C A –0 –1.0 –1.5 –2.0 –2.5 –3.0 –3.5 –4.0 –4.5 –5.0 0 0.5 1.0 1.5 2.0 SOURCE VOLTAGE (V) Figure 11. Charge Injection vs. Source Voltage 220 210 t ON 200 ...

  • Page 13

    T = 25°C A 0.35 0. 0.25 0.20 0. 0.10 0.05 0 0.1 0.6 1.1 1.6 2.1 2.6 f FREQUENCY (MHz) CLK Figure 17. I vs. f Frequency DD CLK 1 ...

  • Page 14

    ADG791A/ADG791G TEST CIRCUITS V1 Figure 22. On Resistance I (OFF Figure 23. Off Leakage CONNECT Figure 24. ...

  • Page 15

    50Ω INTERFACE SDA SCL GND Figure 28. Switching Time 5V 0.1µ 50Ω 35pF INTERFACE ...

  • Page 16

    ADG791A/ADG791G TERMINOLOGY On Resistance ( The series on-channel resistance measured between the S and D pins. On Resistance Match (Δ The channel-to-channel matching of on resistance when channels are operated under identical conditions. On Resistance Flatness ...

  • Page 17

    THEORY OF OPERATION The ADG791A/ADG791G are monolithic CMOS devices comprising four 2:1 multiplexers controllable via a standard I serial interface. The CMOS process provides ultralow power dissipation, yet offers high switching speed and low on resistance. The on resistance profile ...

  • Page 18

    ADG791A/ADG791G SCL R/W SDA START ADDRESS BYTE CONDITION ACKNOWLEDGE BY MASTER BY SWITCH Table 6. ADG791A/ADG791G Command List AX7 AX6 AX5 AX4 AX3 ...

  • Page 19

    LDSW BIT The LDSW bit allows the user to control the way the device executes the commands loaded during the write operations. The ADG791A/ADG791G executes all the commands loaded between two successive write operations that have set the LDSW bit ...

  • Page 20

    ... ADG791G. It interfaces to the USB port can be used as a standalone evaluation board. Software is available with the evaluation board that allows the user to easily program the ADG791G through the USB port. Schematics of the evaluation board are shown in Figure 33 and Figure 34. The software runs on any PC that has Microsoft® ...

  • Page 21

    ... VCC 55 VCC 43 VCC 32 VCC 27 VCC 17 VCC 11 VCC 7 AVCC 3 Figure 33. EVAL-ADG791GEB Schematic, USB Controller Section Rev Page ADG791A/ADG791G GND 56 GND 53 GND 41 GND 28 GND 26 GND 12 GND 10 06033-033 ...

  • Page 22

    ... TOP 4 3 CASE 5 PHONO_DUAL R13 10kΩ 10kΩ 10kΩ 0Ω R34 Figure 34. EVAL-ADG791GEB Schematic, Chip Section Rev Page 06033-034 R30 PHONO_DUAL CASE 5 TOP CASE 3 4 R29 BOTTOM 2 GND 1 K9 R28 PHONO_DUAL CASE 5 TOP CASE 3 4 BOTTOM R27 2 GND 1 K8 ...

  • Page 23

    ... ADG791GBCPZ-REEL −40°C to +85°C 1 ADG791GBCPZ-500RL7 −40°C to +85°C ADG791GCCPZ-REEL 1 −40°C to +85°C 1 ADG791GCCPZ-500RL7 −40°C to +85°C 2 EVAL-ADG791GEB Pb-free part. 2 Evaluation board is RoHS compliant. 4.00 BSC SQ 0.60 MAX 0.50 BSC TOP 3.75 VIEW BSC SQ ...

  • Page 24

    ADG791A/ADG791G NOTES Purchase of licensed components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, ...

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