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ADV3219 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADV3219
Beschreibung 2:1 Analog Multiplexers
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 18 Seiten
ADV3219 Datasheet, Funktion
Data Sheet
800 MHz, 2:1 Analog Multiplexers
ADV3219/ADV3220
FEATURES
Excellent ac performance
−3 dB bandwidth
800 MHz (200 mV p-p)
730 MHz (2 V p-p)
Slew rate: 2800 V/μs
Low power: 75 mW, VS = ±5 V
Excellent video performance
>100 MHz, 0.1 dB gain flatness
0.02% differential gain/0.02° differential phase error
(RL = 150 Ω)
Gain = +1 (ADV3219) or gain = +2 (ADV3220)
Low crosstalk of −82 dB at 5 MHz and −60 dB at 100 MHz
High impedance output disable allows connection of
multiple devices without loading the output bus
8-lead LFCSP
APPLICATIONS
Routing of high speed signals including
Video (NTSC, PAL, S, SECAM, YUV, and RGB)
Compressed video (MPEG, wavelet)
3-level digital video (HDB3)
Data communications
Telecommunications
GENERAL DESCRIPTION
The ADV3219 and ADV3220 are high speed, high slew rate,
buffered, 2:1 analog multiplexers. They offer a −3 dB signal
bandwidth greater than 800 MHz and channel switch times of
less than 20 ns with 1% settling. With −82 dB of crosstalk and
−88 dB isolation (at 5 MHz), the ADV3219 and ADV3220 are
useful in many high speed applications. The differential gain of
less than 0.02% and the differential phase of less than 0.02°,
together with 0.1 dB flatness beyond 100 MHz while driving a
75 Ω back terminated load, make the ADV3219 and ADV3220
ideal for all types of signal switching.
FUNCTIONAL BLOCK DIAGRAM
ADV3219
(ADV3220)
IN0 1
8 SELECT
GND 2
IN1 3
G = +1
(G = +2)
7 EN
6 OUT
V+ 4
5 V–
Figure 1.
The ADV3219/ADV3220 include an output buffer that can be
placed into a high impedance state to allow multiple outputs to
be connected together for cascading stages without the off channels
loading the output bus. The ADV3219 has a gain of +1, and the
ADV3220 has a gain of +2; they both operate on ±5 V supplies
while consuming less than 7.5 mA of idle current.
The ADV3219/ADV3220 are available in the 8-lead LFCSP
package over the extended industrial temperature range of
−40°C to +85°C.
Rev. A
Document Feedback
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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.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2010–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






ADV3219 Datasheet, Funktion
ADV3219/ADV3220
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
IN0 1
GND 2
IN1 3
V+ 4
ADV3219/
ADV3220
TOP VIEW
(Not to Scale)
8 SELECT
7 EN
6 OUT
5 V–
NOTES
1. CONNECT THE EXPOSED
PAD TO GROUND.
Figure 3. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
1 IN0
2 GND
3 IN1
4 V+
5 V−
6 OUT
7 EN
8 SELECT
N/A1
EP
Descriptions
Analog Input.
Ground.
Analog Input.
Positive Power Supply.
Negative Power Supply.
Analog Output.
Output Enable (Low True).
Logic Input for Analog Input Selection.
Exposed Pad. Connect the exposed pad to ground.
1 N/A means not applicable.
Table 6. Truth Table
SELECT
0
1
0
1
EN
0
0
1
1
OUT
IN0
IN1
High-Z
High-Z
Rev. A | Page 6 of 18

6 Page









ADV3219 pdf, datenblatt
ADV3219/ADV3220
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
1
10 100 1k
FREQUENCY (MHz)
Figure 34. ADV3219 Crosstalk vs. Frequency
10k
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
1
10 100 1k
FREQUENCY (MHz)
Figure 35. ADV3219 Off Isolation vs. Frequency
10k
1M
100k
10k
1k
100
10
1
1 10 100 1k
FREQUENCY (MHz)
Figure 36. ADV3219 Disabled Output Impedance vs. Frequency
Data Sheet
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
1
10 100 1k
FREQUENCY (MHz)
Figure 37. ADV3220 Crosstalk vs. Frequency
10k
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
1
10 100 1k
FREQUENCY (MHz)
Figure 38. ADV3220 Off Isolation vs. Frequency
10k
1M
100k
10k
1k
100
10
1 10 100 1k
FREQUENCY (MHz)
Figure 39. ADV3219/ADV3220 Input Impedance vs. Frequency
Rev. A | Page 12 of 18

12 Page





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