Overview
The AD9920ABBCZRL, produced by Analog Devices Inc., is a highly integrated charge-coupled device (CCD) signal processor designed primarily for digital still camera applications. This component includes a complete analog front end (AFE) with analog-to-digital conversion, a full-function programmable timing generator, and a 19-channel vertical driver (V-driver). The AD9920A is known for its precision timing core, which allows for high-speed clock adjustments with approximately 400 ps resolution at 40.5 MHz operation. It also features on-chip horizontal and RG drivers, a sync generator, and general-purpose outputs (GPOs) for shutter and system support.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | 105-CSPBGA (8x8) | - |
| Resolution | 12 Bits | - |
| ADC Resolution | 12 Bits | - |
| Differential Nonlinearity (DNL) | ±0.5 LSB | - |
| Integral Nonlinearity (INL) | ±3.0 LSB | - |
| Full-Scale Input Voltage | 2.0 V | V |
| Operating Temperature Range | -25°C to +85°C | °C |
| VGA Gain Range | 6.3 dB to 42.4 dB | dB |
| Black Level Clamp Resolution | 1024 Steps | - |
| Reference Top Voltage (REFT) | 1.4 V | V |
| Reference Bottom Voltage (REFB) | 0.4 V | V |
Key Features
- Complete analog front end (AFE) with analog-to-digital conversion
- Full-function programmable timing generator with ~400 ps resolution at 40.5 MHz operation
- 19-channel vertical driver (V-driver) supporting up to six-field CCDs
- On-chip 3 V horizontal and RG drivers
- On-chip sync generator with external sync input
- On-chip 1.8 V low dropout (LDO) regulator
- Six general-purpose outputs (GPOs) for shutter and system functions
- Black level clamping with variable level control
- Variable gain correlated double sampler (CDS) and 12-bit ADC
Applications
The AD9920ABBCZRL is primarily designed for digital still camera applications. Its integrated features and precision timing make it an ideal choice for advanced CCD-based camera systems.
Q & A
- What is the primary application of the AD9920ABBCZRL?
The AD9920ABBCZRL is primarily designed for digital still camera applications.
- What type of package does the AD9920ABBCZRL come in?
The AD9920ABBCZRL comes in a 105-CSPBGA (8x8) package.
- What is the resolution of the ADC in the AD9920ABBCZRL?
The ADC resolution is 12 bits.
- What is the operating temperature range of the AD9920ABBCZRL?
The operating temperature range is -25°C to +85°C.
- Does the AD9920ABBCZRL have on-chip timing generation capabilities?
Yes, it includes a full-function programmable timing generator with ~400 ps resolution at 40.5 MHz operation.
- How many channels does the vertical driver support?
The vertical driver supports up to 19 channels for use with six-field CCDs.
- What is the gain range of the variable gain amplifier (VGA)?
The VGA gain range is from 6.3 dB to 42.4 dB.
- Does the AD9920ABBCZRL have general-purpose outputs?
Yes, it has six general-purpose outputs (GPOs) for shutter and system functions.
- What is the resolution of the black level clamp?
The black level clamp resolution is 1024 steps.
- Does the AD9920ABBCZRL include an on-chip LDO regulator?
Yes, it includes an on-chip 1.8 V low dropout (LDO) regulator.
