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Part Number: MC44302A
Description: The MC44302A is a multistandard single channel TV Video/Sound IF and PLL detector system specifically ...
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MC44302A
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General Description
MC44302A General Description
The MC44302A is a multistandard single channel TV Video/Sound IF and PLL detector system specifically designed for use with all standard modulation techniques including NTSC, PAL, and SECAM. This device enables the designer to produce a high quality IF system with a minimum number of external components.
The MC44302A contains a high gain video IF with an AGC range of 80 dB, enhanced phaselocked loop carrier regenerator for low static phase error, doubly balanced full wave synchronous video demodulator featuring wide bandwidth positive and negative video outputs with extremely low differential gain and phase distortion, video AFT amplifier, multistage sound IF limiter with FM quadrature detector and AFT for self tuning, AM sound detector, constant and variable audio outputs, dc volume control for reduced hum and noise pickup, unique signal acquisition circuit that prevents false PLL lockup and AFT push out, horizontal gating system with sync separator and phaselocked loop circuitry for selfcontained RF/IF AGC operation, RF AGC delay circuitry, and programmable control logic that allows operation in NTSC, and PAL SECAM systems. This device is available in wide body 28 pin dualinline and surface mount plastic packages.
MC44302A Maximum Ratings
|
Rating |
Symbol |
Value |
Unit |
| Power Supply Voltage |
VCC |
7.0 |
V |
| Input Voltage Range Video IF(Pin8,9) FM Sound IF(Pin 2) AM sound IF(Pin23) AFT Switch (Pin 12) Audio Input/Audio Switch/Video Invert (Pin 3) Mode Switch (Pin 10) RF AGC Delay (Pin 15) Volume Control(Pin 1) |
VIR |
-0.3 to VCC |
V |
| Sound Quadrature Coil Voltage (Pin 26) |
VQC |
VCC |
V |
| VCO Coil Voltage (Pins 20, 21) |
VVCO |
VCC |
V |
| Flyback/Video Input Current (Pin 17) |
Iin |
±1.0 |
mA |
| Output Current Positive and Negative Video(Pin5, 6) Intercarrier Sound (Pin 28) Constant and Variable Audio (Pins 24, 27) RF AGC, Internally Limited (Pin 13) AFT Source or Sink (Pin 11) |
IO |
15 15 15 2.0 4.0 |
mA |
| Power Dissipation and Thermal Characteristics DW Suffix,Plastic Package Case 75IF Maximum Power Dissipation @ TA = 70 Thermal Resistance, JunctiontoAir P Suffix, Plastic Package Case 710 Maximum Power Dissipation @ TA = 70 Thermal Resistance, JunctiontoAir |
PD RJA PD RJA |
800 100 1000 80 |
mW /W mW /W |
| Operating Junction Temperature |
TJ |
+150 |
|
| Operating Ambient Temperature |
TA |
0 to+70 |
|
| Storage Temperature |
Tstg |
-65 to +150 |
MC44302A Features
• MultiStandard Detector System for NTSC, PAL, and SECAM
• High Gain Video IF Amplifier with 80 dB AGC Range
• Enhanced PLL Carrier Regenerator for Low Static Phase Error
• Synchronous Video Demodulator with Positive and Negative Video Outputs
• Sound IF with Self Tuning FM Quadrature Detector
• AM Sound Detector
• DC Volume Control
• Unique Signal Acquisition Circuit Prevents False PLL Lockup
• Horizontal Gating System for Self Contained RF/IF AGC Operation
• RF AGC Delay Circuitry
• High Gain Video IF Amplifier with 80 dB AGC Range
• Enhanced PLL Carrier Regenerator for Low Static Phase Error
• Synchronous Video Demodulator with Positive and Negative Video Outputs
• Sound IF with Self Tuning FM Quadrature Detector
• AM Sound Detector
• DC Volume Control
• Unique Signal Acquisition Circuit Prevents False PLL Lockup
• Horizontal Gating System for Self Contained RF/IF AGC Operation
• RF AGC Delay Circuitry
MC44302A Connection Diagram
MC44302A
PDF/DataSheet Download
- Datasheet: MC44302A
- File Size: 627245 KB
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