The AD9848 and AD9849 are highly integrated CCD signal processors for digital still cameras. They have multiple features and functions, including Correlated Double Sampler (CDS), Pixel Gain Amplifier (PxGA®), Variable Gain Amplifier (VGA), A/D Converter, Black Level Clamp, etc.
The AD9848 and AD9849 are CCD signal processors designed for digital still‑camera applications. They integrate a complete analog front‑end, A/D conversion, and a programmable timing driver, allowing precise control of high‑speed CCD clocks.
Key features include a 10‑bit (AD9848) or 12‑bit (AD9849) ADC, pixel‑gain and variable‑gain amplifiers, black‑level clamp, and on‑chip 1 ns timing resolution. The devices are supplied in a 48‑lead LQFP package and operate from –20 °C to +85 °C.
| Maximum Clock Rate | 20 MHz (AD9848), 30 MHz (AD9849) |
|---|---|
| Operating Temperature Range | –20 °C to +85 °C |
| Analog Supply Voltage (AVDD) | 2.7 V to 3.6 V |
| Maximum Output Current (Programmable) | 24 mA |
The AD9848 requires an analog supply voltage between 2.7 V and 3.6 V.
Both devices are supplied in a 48‑lead LQFP (plastic quad flat‑pack) package.
The AD9849 features a 12‑bit analog‑to‑digital converter.