Purchase MC44BC374T1, In-stock MC44BC374T1 From SeekIC.
Part Number: MC44BC374T1
Description: The channel is set by an on-chip high-speed I2C compatible bus receiver. A Phase-Locked Loop (PLL) tun...
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MC44BC374T1
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DataSheet
General Description
MC44BC374T1 General Description
The channel 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 modulator 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 using the bus.
The modulation standard is set to System B/G.
The picture-to-sound ratio is adjusted using the bus. In addition, an on-chip video test pattern generator can be turned ON with a 1KHz audio test signal.
Compared with the MC44BC374C, this modulator has one IIC programming difference, a hardware standby mode in addition to the software standby mode, and no logic output port.
Compared with the MC44BC374T, this modulator has a different start-up channel.
MC44BC374T1 Maximum Ratings
|
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 |
operation, values should 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.
MC44BC374T1 Features
• No external varicaps diodes/inductor or tuned components
• Channel 21-69 UHF operation
• VHF range possible by internal dividers (30MHz450MHz)
• Integrated on-chip programmable UHF oscillator
• Extremely low external components count
• HighspeedI2 C-bus compatible (800kHz)
• Fixed video modulation depth (80%)
• Peak White Clip disabled via the bus
• Programmable picture/sound carrier ratio (12dB and 16dB)
• Integrated on-chip programmable sound subcarrier oscillator (4.5MHz to 6.5MHz)-No external varicaps
• On-chip video test pattern generator with sound test signal (1kHz)
• Low-power modulator standby mode programmable by I2C bus or switchable by STBY pin voltage
• Transient output inhibit during PLL Lock-up at power-ON
• Start-up on channel '71' (871.25 MHz)
• Extremely robust ESD protection, minimum 4kV, typical 6kV
• Channel 21-69 UHF operation
• VHF range possible by internal dividers (30MHz450MHz)
• Integrated on-chip programmable UHF oscillator
• Extremely low external components count
• HighspeedI2 C-bus compatible (800kHz)
• Fixed video modulation depth (80%)
• Peak White Clip disabled via the bus
• Programmable picture/sound carrier ratio (12dB and 16dB)
• Integrated on-chip programmable sound subcarrier oscillator (4.5MHz to 6.5MHz)-No external varicaps
• On-chip video test pattern generator with sound test signal (1kHz)
• Low-power modulator standby mode programmable by I2C bus or switchable by STBY pin voltage
• Transient output inhibit during PLL Lock-up at power-ON
• Start-up on channel '71' (871.25 MHz)
• Extremely robust ESD protection, minimum 4kV, typical 6kV
MC44BC374T1 Connection Diagram
MC44BC374T1
PDF/DataSheet Download
- Datasheet: MC44BC374T1
- File Size: 316658 KB
- Manufacturer: MOTOROLA [Motorola, Inc]
- Click here to Download
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MC44BC374C
The channel MC44BC374Cis 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 MC44BC374C incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, ...
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The channel MC44BC373Cis 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 MC44BC373C incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, ...
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