CH7001C

Features:

• Enhanced bandwidth and signal-to-noise ratio for higher video performance
• Integrated triple video rate 8-bit analog to digital converters for input RGB
• 3-line digital vertical filtering with pinprogrammable characteristics for optimum antiflicker and resolution
• On-chip phase-locked loop generates sampling clock from VGA horizontal sync
• Enhanced power management for selective circuit power-down
• Simultaneous composite/S-video output
• Horizontal and vertical position control
• Pin-programmable underscan/overscan mode
• On-chip reference generation and loop filter
• CMOS technology in 44-pin PLCC
• 5V supply


Pinout




Specifications

Symbol	Description	Min	Typ	Max	Units
	VDD relative to GND	- 0.5		7.0	V
	Input voltage of all digital pins1	GND - 0.5		VDD + 0.5	V
TSC	Analog output short circuit duration		Indefinite		Sec
TAMB	Ambient operating temperature	- 55		85
TSTOR	Storage temperature	- 65		150
TJ	Junction temperature			150
TVPS	Vapor phase soldering (one minute)			220
PMAX	Maximum Power dissipation			TBD	W

Description

Chrontel's CH7001C VGA to NTSC/PAL encoder is a stand-alone integrated circuit that converts analog VGA inputs directly into 525-line (M) NTSC or 625-line (B, D, G, H, I) PAL composite video and S-video outputs.

CH7001C integrates a digital NTSC/PAL encoder with 8-bit ADC and DAC interfaces, a 3-line vertical filter and low-jitter phase-locked loop to create outstanding quality video with 24-bits-per-pixel processing throughout the entire signal path.

A high level of integration and performance makes the CH7001C ideal for a variety of stand-alone and systemlevel integration solutions, including notebook computers and PC add-on graphics cards.