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MC44BC375

Features: • Channel selected by CHS pin• Integrated On-Chip Oscillator - No external tank circuit• Extremely Low External Components Count• Adjustable Video Modulation Depth (85% w/o adjustment)• PeakWhiteClip• Programmable Picture/Sound Carrier Ratio (14dB &...

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SeekIC No. : 004416019 Detail

MC44BC375: Features: • Channel selected by CHS pin• Integrated On-Chip Oscillator - No external tank circuit• Extremely Low External Components Count• Adjustable Video Modulation Depth ...

MC44BC375 Data Sheet

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Part Number:
MC44BC375
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• Channel selected by CHS pin
• Integrated On-Chip Oscillator - No external tank circuit
• Extremely Low External Components Count
• Adjustable Video Modulation Depth (85% w/o adjustment)
• PeakWhiteClip
• Programmable Picture/Sound Carrier Ratio (14dB & 16dB) selected by PSS pin
• IntegratedOn-chip Programmable Sound Subcarrier Oscillator (4.5&5.5MHz selected by SFS pin) No external varicaps
• Modulator Standby Mode selected by Psave/LO pin
• Transient Output Inhibit During PLL Lock-up at Power-on
• Logic Output Port selected by Psave/LO pin (Antenna Switch Driver)
• Extremely Robust ESD protection, Minimum 4kV, typical 6kV.
• Available in 80 dBuV RF output level (MC44BC375UA).


Pinout

Connection Diagram


Specifications

Sym
Parameter
Value
Unit
Vcc
 Supply voltage
6
V
Tamin
 Minimum operating ambient temperature
-20
Tamax
 Maximum operating ambient temperature
85
Tstgmin
 Minimum storage temperature
65
Tstgmax
 Maximum storage temperature
150
Tj
 Junction Temperature
150
Maximum ratings are those values beyond which damage to the device may occur. For functional
operation, valuesshould be restricted to the Recommended Operating Condition.

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 thanmaximum
rated voltages to this high impedance circuit. For proper operation, input and output voltages should
be constrained to the ranges indicated in the Recommended Operating Conditions.


Description

Channels MC44BC375 are selectable using pin Channel Selection (CHS) and tuned by a PLL. MC44BC375 do not require any external tank circuit components thus reducing the sensitivity of the PCB design and the need for external adjustments. The PLL obtains its reference from a 4MHz crystal oscillator.

The sound subcarrier MC44BC375 is also generated on-chip without external components. The 4.5MHz or 5.5MHz Sound frequency is selectable using pin Sound Frequency Selection (SFS). The Picture to Sound subcarrier ratio is also selectable by pin Picture to Sound selection (PSS) to either 14dB or 16dB. A Power Save function is selectable via pin Psave/LO which turns off all internal VCOs and mixers and simultaneously switches ON the Logic Output Port (LOP). No external Varicap Diodes/ Inductor nor other tuned components are needed.




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