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SN761677

  

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TI
Texas Instruments
SN761677 TV/VCR TUNER IC WITH DC/DC CONVERTER

DESCRIPTION
The SN761677 is a single-chip synthesized tuner IC designed for TV/VCR tuning systems. The  circuit consists of a PLL synthesizer, 3-band local oscillators and mixer, 30-V dc/dc  converter for tuning the amplifier, four NPN emitter follower band drivers, four NPN open  collector ports, and is available in a small package outline. The 15-bit programmable counter  and reference divider are controlled by I2C bus control. Tuning step frequency is selectable  by the reference divider ratio for a 4-MHz Xtal oscillator.

FEATURES
● Single Chip Mixer/Oscillator, Synthesizer, and 30-V DC/DC Converter for Tuning Amplifier
● VHF-L, VHF-H, UHF 3-Band Local Oscillator
● I2C Bus Protocol
● Four Data Bytes Transmission
● Low Noise DC/DC Converter
● 4ch NPN Emitter Follower Type Band Switch Drivers
● 4ch NPN Open Collector Type Ports
● Programmable Reference Divider Ratio (31.25 kHz, 50 kHz, or 62 kHz)
● 5-V Power Supply
● 38-Pin TSSOP Package



other parts : SN761677DA  SN761677DAR  SN761677DBTR  
SN761677 PDF
TI
Texas Instruments
SN761677DA TV/VCR TUNER IC WITH DC/DC CONVERTER

DESCRIPTION
The SN761677 is a single-chip synthesized tuner IC designed for TV/VCR tuning systems. The  circuit consists of a PLL synthesizer, 3-band local oscillators and mixer, 30-V dc/dc  converter for tuning the amplifier, four NPN emitter follower band drivers, four NPN open  collector ports, and is available in a small package outline. The 15-bit programmable counter  and reference divider are controlled by I2C bus control. Tuning step frequency is selectable  by the reference divider ratio for a 4-MHz Xtal oscillator.

FEATURES
● Single Chip Mixer/Oscillator, Synthesizer, and 30-V DC/DC Converter for Tuning Amplifier
● VHF-L, VHF-H, UHF 3-Band Local Oscillator
● I2C Bus Protocol
● Four Data Bytes Transmission
● Low Noise DC/DC Converter
● 4ch NPN Emitter Follower Type Band Switch Drivers
● 4ch NPN Open Collector Type Ports
● Programmable Reference Divider Ratio (31.25 kHz, 50 kHz, or 62 kHz)
● 5-V Power Supply
● 38-Pin TSSOP Package



other parts : SN761677  SN761677DAR  SN761677DBTR  
SN761677DA PDF
TI
Texas Instruments
SN761677DAR TV/VCR TUNER IC WITH DC/DC CONVERTER

DESCRIPTION
The SN761677 is a single-chip synthesized tuner IC designed for TV/VCR tuning systems. The  circuit consists of a PLL synthesizer, 3-band local oscillators and mixer, 30-V dc/dc  converter for tuning the amplifier, four NPN emitter follower band drivers, four NPN open  collector ports, and is available in a small package outline. The 15-bit programmable counter  and reference divider are controlled by I2C bus control. Tuning step frequency is selectable  by the reference divider ratio for a 4-MHz Xtal oscillator.

FEATURES
● Single Chip Mixer/Oscillator, Synthesizer, and 30-V DC/DC Converter for Tuning Amplifier
● VHF-L, VHF-H, UHF 3-Band Local Oscillator
● I2C Bus Protocol
● Four Data Bytes Transmission
● Low Noise DC/DC Converter
● 4ch NPN Emitter Follower Type Band Switch Drivers
● 4ch NPN Open Collector Type Ports
● Programmable Reference Divider Ratio (31.25 kHz, 50 kHz, or 62 kHz)
● 5-V Power Supply
● 38-Pin TSSOP Package



other parts : SN761677  SN761677DA  SN761677DBTR  
SN761677DAR PDF
TI
Texas Instruments
SN761677DBTR TV/VCR TUNER IC WITH DC/DC CONVERTER

DESCRIPTION
The SN761677 is a single-chip synthesized tuner IC designed for TV/VCR tuning systems. The  circuit consists of a PLL synthesizer, 3-band local oscillators and mixer, 30-V dc/dc  converter for tuning the amplifier, four NPN emitter follower band drivers, four NPN open  collector ports, and is available in a small package outline. The 15-bit programmable counter  and reference divider are controlled by I2C bus control. Tuning step frequency is selectable  by the reference divider ratio for a 4-MHz Xtal oscillator.

FEATURES
● Single Chip Mixer/Oscillator, Synthesizer, and 30-V DC/DC Converter for Tuning Amplifier
● VHF-L, VHF-H, UHF 3-Band Local Oscillator
● I2C Bus Protocol
● Four Data Bytes Transmission
● Low Noise DC/DC Converter
● 4ch NPN Emitter Follower Type Band Switch Drivers
● 4ch NPN Open Collector Type Ports
● Programmable Reference Divider Ratio (31.25 kHz, 50 kHz, or 62 kHz)
● 5-V Power Supply
● 38-Pin TSSOP Package



other parts : SN761677  SN761677DA  SN761677DAR  
SN761677DBTR PDF

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