适用于 CCD 传感器的 12 位 20MSPS 单通道 AFE
| Resolution (Bits) | 12 |
| Samples/sec (MSPS) | 20 |
| Supply voltage (Max) | 3.6 |
| Operating temperature range (C) | -25 to 85 |
| Output data format | CMOS Parallel |
- CCD SIGNAL PROCESSING:
Correlated Double Sampling (CDS)
Programmable Black Level Clamping - PROGRAMMABLE GAIN AMPLIFIER (PGA):
\x966dB to +42dB Gain Ranging - 12-BIT DIGITAL DATA OUTPUT:
Up to 20MHz Conversion Rate
No Missing Codes - 79dB SIGNAL-TO-NOISE RATIO
- PORTABLE OPERATION:
Low Voltage: 2.7V to 3.6V
Low Power: 83mW (typ) at 3.0V
Stand-By Mode: 6mW
The VSP2262 is a complete mixed-signal processing IC for digital cameras, providing signal conditioning and Analog-to-Digital (A/D) conversion for the output of a CCD array. The primary CCD channel provides Correlated Double Sampling (CDS) to extract video information from the pixels, \x966dB to +42dB gain range with digital control for varying illumination conditions, and black level clamping for an accurate black level reference. Input signal clamping and offset correction of the input CDS are also performed. The stable gain control is linear in dB. Additionally, the black level is quickly recovered after gain change. The VSP2262Y is available in an LQFP-48 package and operates from a single +3V/+3.3V supply.
