
Sony Semiconductor
Description
The CXA1702AR is a bipolar IC designed as recording/playback amplifiers for Hi8-compatible VCRs.
FEATUREs
• Recording/playback system
• Hi8-compatible wideband recording/playback amplifier.
• Enables electric variable resistor (EVR) control.
• Recording system
• Feedback damping provided in the recording amplifier and its EVR control function facilitate printed circuit board design.
• Five-input (Y, chroma, AFM, ATF, PCM) mix amplifier and EVR control function for Y/low-band recording level.
• Ramp circuit for the recording amplifier output bias current.
• Playback system
• Feedback dumping provided in the playback amplifier facilitates printed circuit board design.
• Middle-frequency tuner on chip; EVR permits independent adjustment of its center frequency fo, Q and boost amount by EVR.
• RF AGC and dropout detection circuit.
APPLICATION
8 mm VCR