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PDF AZG489 Data sheet ( Hoja de datos )
| Número de pieza | AZG489 | |
| Descripción | PECL Video Cable Driver | |
| Fabricantes | Arizona Microtek | |
| Logotipo |  |
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AZG489
ARIZONA MICROTEK, INC.
PECL Video Cable Driver
FEATURES
• 720 Mb/s Typical Data Rate
• 1.6V Typical Output Swing
• Independent Outputs Operate in Phase
• 5V±10% Supply Voltage
DESCRIPTION
PACKAGE AVAILABILITY
PACKAGE PART NUMBER MARKING NOTES
SOIC 8
AZG489D
AZG489
<Date Code>
1,2
1 Add R1 at end of part number for 7 inch (1K parts), R2 for 13 inch (2.5K parts)
Tape & Reel.
2 Date Code “YWW” on underside of part.
The AZG489 is a multiple output cable driver specifically designed to drive coaxial video cables. The device is
especially useful in Digital Video Broadcasting applications. Each output has its own output stage and thus each is
isolated from the other outputs.
The driver has a voltage gain of approximately 40 and produces an output swing of 1.6 volts, twice as large as a
standard PECL output. When driving a coaxial cable, proper termination is required at both ends of the cable to
minimize reflections. The 1.6V output signal allows for termination at both ends of the cable, while providing an
800mV signal at the receiving end of the cable.
The driver accepts a standard differential PECL input and can be powered with a 5.0V supply. Under open input
conditions internal input clamps will force all outputs HIGH.
Additional power supply filtering is required because of the large amount of in-phase output current. A
capacitor (0.1μF minimum) must bypass VCC to VEE in close proximity to the AZG489. A ferrite bead (1KΩ @ 100
MHz) must be placed in series to the VEE pin. Additional capacitance may be required based on board layout. See
Figure 1 for further information.
NOTE: The specifications in the PECL table are valid when thermal equilibrium is established. The maximum
junction temperature is 125°C. Thermal management may be required in some applications to ensure the junction
temperature does not exceed that value.
LOGIC DIAGRAM AND PINOUT ASSIGNMENT
PIN DESCRIPTION
PIN
D, D¯
Q0, Q1, Q2, Q3
VCC
VEE
FUNCTION
PECL Data Inputs
Data Outputs (1.6VPP)
Positive Supply
Negative Supply
Q0 1
Q1 2
Q2 3
Q3 4
8 VCC
7D
6D
5 VEE
1630 S. STAPLEY DR., SUITE 127 • MESA, ARIZONA 85204 • USA • (480) 962-5881 • FAX (480) 890-2541
www.azmicrotek.com
1 page  
AZG489
Arizona Microtek, Inc. reserves the right to change circuitry and specifications at any time without prior notice. Arizona Microtek, Inc.
makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Arizona
Microtek, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all
liability, including without limitation special, consequential or incidental damages. Arizona Microtek, Inc. does not convey any license
rights nor the rights of others. Arizona Microtek, Inc. products are not designed, intended or authorized for use as components in systems
intended to support or sustain life, or for any other application in which the failure of the Arizona Microtek, Inc. product could create a
situation where personal injury or death may occur. Should Buyer purchase or use Arizona Microtek, Inc. products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Arizona Microtek, Inc. and its officers, employees, subsidiaries,
affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly
or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Arizona Microtek, Inc. was negligent regarding the design or manufacture of the part.
November 2006 * REV - 2
www.azmicrotek.com
5
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| PDF Descargar | [ Datasheet AZG489.PDF ] | |
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