M52390FP 查看數據表（PDF） - Renesas Electronics
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M52390FP Datasheet PDF : 23 Pages
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M52390FP
NTSC/PAL Encoder
REJ03F0080-0100Z
Rev.1.0
Sep.22.2003
Description
The M52390FP is a semiconductor integrated circuit that has a function for converting R, G and B signals into
NTSC/PAL composite video signals, as well as a superimpose function, on a single chip.
Features
• RGB encoder-related
Built-in LPF for color discrimination. An external resistor enables cutoff frequency control.
An internal VCA circuit enables gain control of the chroma unit.
A high-precision modulation circuit and clamping circuit realize low carrier leaks.
Burst and synch signals are generated in the IC.
• Superimpose-related
YS IN (control input) enables switching between two input signals, VIDEO IN and RGB IN.
An internal high-speed analog switch makes it possible to insert fine text.
An internal APC circuit automatically adjusts the color phases of new screen (VIDEO IN) and RGB encoder
signals.
• Overall
The VIDEO OUT signal is output at 2 VP-P, making it possible to configure a 75 Ω drive circuit with a single
transistor.
Both NTSC and PAL are supported.
Application
• TVs, VCRs, monitors and other audio/video devices
Recommended Operating Conditions
• Power supply voltage range: 4.7 to 5.3 V
• Recommended power supply voltage: 5.0 V
Rev.1.0, Sep.22.2003, page 1 of 22
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