AN2104NFHQ

Features:

• Low power (114 mW typ. at 3 V supply voltage)
• High-speed sample-and-hold circuit operates up to 25 MHz.
• The AGC can be adjusted over 0.5 dB to 36 dB range.
• The OB circuit is adjustable over a {V_RB to V_RB+(V_RT −V_RB)/ 4} range.
• On-chip A/D converter reference voltage supply circuit (V_RT and V_RB)
• On-chip 10-bit A/D converter (maximum conversion speed: 25 MSPS)
• Built-in 3-channel 8-bit D/A converter for adjustments and mode settings.


Application

• Digital still cameras
• Video cameras
• PC input cameras
• Surveillance cameras
• Board cameras
• Cameras that use CCDs and digital signal processing.


Specifications

Parameter	Symbol	Rating	Unit
Supply voltage	VDD	− 0.3 to +4.6	V
Supply current	IDD 	−	mA
Power dissipation *2	PD	226	mW
Operating temperature *1	Topr	−20 to +75	°C
Storage temperature *1	Tstg	−55 to +125	°C

Notes: *1 : Except for the operating temperature and storage temperature, all items are measured at Ta = 25 °C.
           *2 : The power dissipation is for the package at Ta = 75 °C in free air.


Description

The AN2104NFHQ is a digital pre-processing IC for CCD digital cameras. It is a single chip IC including a 10-bit A/D converter as well as CDS and AGC circuits. The CDS circuit achieves high-speed sampling at rates up to 25 MHz, and thus the AN2104NFHQ can support advanced CCD cameras developing in higher density pixels and image quality, such as XGA or SXGA resolutions. The AGC and OB circuits can be adjusted with 9-bit and 8-bit serial data respectively through onchip D/A converter.