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參數(shù)資料
| 型號(hào)： | HA4244 |
| 廠商： | Intersil Corporation |
| 英文描述： | 480MHz, 1 x 1 Video Crosspoint Switch with Synchronous Enable |
| 中文描述： | 480MHz，1 × 1視頻交叉點(diǎn)開關(guān)同步啟用 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 145K |
| 代理商： | HA4244 |
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002. All Rights Reserved
HA4244
480MHz, 1 x 1 Video Crosspoint
Switch with Synchronous Enable
The HA4244 is a very wide bandwidth 1 x 1 crosspoint switch
ideal for professional video switching, HDTV, computer
monitor routing, and other high performance applications. The
circuit features very low power dissipation, excellent
differential gain and phase, high off isolation, symmetric slew
rates, fast switching, and a latched enable signal. When
disabled, the output is switched to a high impedance state,
making the HA4244 ideal for routing matrix equipment.
The latched enable input allows for synchronized channel
switching. When CLK is low the master control latch loads the
next EN, while the closed slave control latch maintains the
crosspoint in its current state. CLK switching high closes the
master latch, loads the now open slave latch, and enables or
disables the HA4244 according to the current state of the EN
input.
This crosspoint’s design ensures that it powers up in the
disabled state to eliminate bus contention concerns, and to
minimize supply current draw at power up.
For applications requiring an asynchronous crosspoint
switch, please refer to the HA4201 and HA4600 data sheets.
Functional Diagram
Timing Diagram
Features
Low Power Dissipation. . . . . . . . . . . . . . . . . . . . . 105mW
Symmetrical Slew Rates . . . . . . . . . . . . . . . . . . 1700V/
μ
s
0.1dB Gain Flatness. . . . . . . . . . . . . . . . . . . . . . . 250MHz
-3dB Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 480MHz
Off Isolation (100MHz) . . . . . . . . . . . . . . . . . . . . . . . 85dB
Differential Gain and Phase . . . . . . . 0.01%/0.01 Degrees
High ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . >1800V
TTL Compatible Control Signals
Latched Enable Input for Synchronous Switching
Powers-Up in Disabled State; Avoids Bus Contention
Applications
Professional Video Switching and Routing
Video Multiplexers
Computer Graphics
RF Switching and Routing
PCM Data Routing
Pinout
HA4244
(SOIC)
TOP VIEW
OUT
IN
D
L
Q
C
CLK
EN
D
L
C
Q
CLK
OUT
ENABLED
DIS
DIS
EN
Part Number Information
PART NUMBER
(BRAND)
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
HA4244CB
(H4244C)
0 to 70
8 Ld SOIC
M8.15
EN
V-
V+
OUT
1
2
3
4
8
7
6
5
GND
IN
NC
CLK
September 1998
File Number
4078.2
NoOBSOLETE PRODUCT
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