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MC44BS374CA

Features: • Integrated on-chip programmable UHF oscillator• No external varicaps diodes/inductor or tuned components• Extremely low external components count• Channel 21-69 UHF operation• VHF range possible by internal dividers (30MHz-450MHz)• Boosted TVout leve...

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MC44BS374CA: Features: • Integrated on-chip programmable UHF oscillator• No external varicaps diodes/inductor or tuned components• Extremely low external components count• Channel 21-69 U...

MC44BS374CA Data Sheet

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Part Number:
MC44BS374CA
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Integrated on-chip programmable UHF oscillator
• No external varicaps diodes/inductor or tuned components
• Extremely low external components count
• Channel 21-69 UHF operation
• VHF range possible by internal dividers (30MHz-450MHz)
• Boosted TVout level (82 dBuV typical)
• High speed read and write I2C-bus compatible (800kHz)
• I2C-bus 5V and 3.3V compatible
• Fixed video modulation depth (82% typical)
• Peak White Clip disabled by bus
• Programmable picture/sound carrier ratio (12dB and 16dB)
• Integrated on-chip programmable sound subcarrier oscillator (4.5, 5.5, 6.0 and 6.5 MHz) - No external varicaps
• On-chip video test pattern generator with sound test signal (1kHz)
• Low-power programmable modulator standby mode
• Transient output inhibit during PLL Lock-up at power-ON
• Logical Output Port controlled by bus
• ESD protection, minimum 4 kV


Pinout

Connection Diagram


Specifications

Sym
Parameter
Value
Unit
Vcc
 Supply voltage
6
V
Tamin
 Minimum operating ambient temperature
0
Tamax
 Maximum operating ambient temperature
70
Tstgmin
 Minimum storage temperature
65
Tstgmax
 Maximum storage temperature
150
Tj
 Junction Temperature
150
Note: Maximum ratings are those values beyond which damage to the device may occur. For
          functional operation,values should be restricted to the Recommended Operating Condition.
Note: Meets Moisture Sensitivity Level 1, no dry pack required.

This device contains protection circuitry to guard against damage due to high static voltage or electric
fields. However, precautions must be taken to avoid applications of any voltage higher than maximum
rated voltages to this high impedance circuit. For proper operation, input and output voltages should
be constrained to the ranges indicated in the


Description

The MC44BS374CA is a Multi-Standard, PAL/NTSC Modulator.

The MC44BS374CA is set by an on-chip high-speed I2C compatible bus receiver. A Phase-Locked Loop (PLL) tunes the modulator over the full UHF range.

The MC44BS374CA incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, and 6.5MHz subcarrier frequencies. These frequencies are selectable by bus.

The MC44BS374CA picture-to-sound ratio may be adjusted using the bus. In addition, an on-chip video test pattern generator can be switched ON with a 1KHz audio test signal.




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