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Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE General Description

The AZ574 is a monolithic integrated voltage stabilizer especially designed for TV tuners. The AZ574 is available in TO-92-2 package.

Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE General Description
The AZ574 is a monolithic integrated voltage stabilizer especially designed for TV tuners. The AZ574 is available in TO-92-2 package.
AZ574
Features
· · · · Low Temperature Coefficient Low Dynamic Impedance Typical Reference Voltage of 33V High Cathode Current Capacity up to 30mA
Applications
· TV Tuners
TO-92-2
Figure 1. Package Type of AZ574
Sep. 2005 Rev. 1. 1 1
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Pin Configuration
Z Package (TO-92-2)
AZ574
2 CATHODE
1 ANODE
Figure 2. Pin Configuration of AZ574 (Top View)
Functional Block Diagram
CATHODE 2
1 ANODE
Figure 3. Functional Block Diagram of AZ574
Sep. 2005 Rev. 1. 1 2
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Ordering Information AZ574
AZ574 Circuit Type
E1: Lead Free Blank: Tin Lead TR: Ammo Blank: Bulk
Package Z: TO-92-2
Package
Temperature Range
Part Number Tin Lead AZ574Z Lead Free AZ574Z-E1 AZ574ZTR-E1
Marking ID Tin Lead AZ574Z AZ574Z Lead Free AZ574Z-E1 AZ574Z-E1
Packing Type Bulk Ammo
TO-92-2
-20 to 75oC
AZ574ZTR
Sep. 2005 Rev. 1. 1 3
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Absolute Maximum Ratings (Note 1)
AZ574
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter Operating Ambient Temperature Operating Cathode Current Symbol TA IKA Min -20 Max 75 30 Unit
Electrical Characteristics
Dynamic Impedance
Note 2: Cathode voltage temperature drift is defined as maximum (worst case) change divided by the total temperature range.
Sep. 2005 Rev. 1. 1 4
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Typical Performance Characteristics AZ574
Dynamic Impedance ()
Cathode Current (mA)
Figure 4. Cathode Voltage Variation vs. Cathode Current
Figure 5. Dynamic Impedance vs. Cathode Current
Cathode Voltage Temperature Drift (mV / C)
Cathode Voltage (V)
Cathode Current (mA)
Temperature ( C)
Figure 6. Cathode Voltage Temperature Drift vs. Cathode Current
Figure 7. Cathode Voltage vs. Temperature
Sep. 2005 Rev. 1. 1 5
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Typical Performance Characteristics (Continued) AZ574
AZ574
Time (min.)
Figure 8. Cathode Voltage Variation vs. Time
Supply Voltage Variation (V)
AZ574
Cathode Current (mA)
Figure 9. Supply Voltage Variation vs. Cathode Current
Sep. 2005 Rev. 1. 1 6
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Typical Application AZ574
TUNER +
AGC VT BAND1 BAND2 MB (5V)
B1 110V AZ574
Tuning Signal
Figure 10. Typical Application of AZ574
Sep. 2005 Rev. 1. 1 7
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 33V HIGH PRECISE VOLTAGE REFERENCE Mechanical Dimensions TO-92-2
1.100(0.043) 1.400(0.055) 3.430(0.135) MIN 0.360(0.014) 0.510(0.020) 3.300(0.130) 3.700(0.146) 0.000(0.000) 0.380(0.015)
AZ574
Unit: mm(inch)
1.600(0.063) MAX 4.400(0.173) 4.700(0.185)
1.270(0.050) TYP 2.440(0.096) 2.640(0.104)
Sep. 2005 Rev. 1. 1 8
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others.
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BCD Semiconductor Manufacturing Limited
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