Analog Devices Inc. AD9990BBCZRL

Overview

AD9990BBCZRL from Analog Devices is a dual-channel, 14-bit CCD signal processor with integrated precision timing core, supporting up to 32 MHz per channel, 24 programmable vertical clocks, and on-chip 1.8 V LDO regulators. It performs correlated double sampling (CDS) with selectable gains (−3 dB to +6 dB), 6 dB–42 dB 10-bit VGA, black level clamping, and 14-bit ADC conversion - deployed in digital still camera image acquisition chains.

For engineers reviewing the AD9990BBCZRL datasheet, AD9990BBCZRL pinout, AD9990BBCZRL application, or AD9990BBCZRL equivalent, key selection criteria include vertical clock count (24), timing resolution (~488 ps at 32 MHz), dual-channel 14-bit ADC performance, on-chip horizontal/vertical drivers, and CSP_BGA package compatibility for compact optical module integration.

Technical Context

The AD9990BBCZRL implements two independent analog signal paths - each with CDS, variable-gain amplifier, black level clamp, and 14-bit 32 MHz ADC - enabling simultaneous digitization of dual-output CCD sensors. Its Precision Timing® core delivers sub-nanosecond clock edge placement accuracy via programmable delay units referenced to a 32 MHz base clock.

Timing generation includes RG, H1–H4, and 24 XV outputs per channel, plus substrate clock (SUBCK), reset (RST), and sync input support. All clocks are derived from an on-chip crystal driver and synchronized by an internal sync generator with external HD/VD inputs.

Key Specifications

Pinout & Package

AD9990BBCZRL is housed in an 112-ball CSP_BGA package (8 mm × 8 mm, 0.65 mm pitch) with exposed thermal pad. Pin functions are defined per Analog Devices AD9990 Rev. SpB datasheet Figure 1 and Table 1 (Ball Map).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CCD signal processor applications.

Compared with AD9990BBCZRL, AD9991BBCZRL offers identical per-channel performance in a lower-pin-count package but sacrifices dual-channel correlation and vertical clock scalability; TDC1000YFFT serves entirely different sensing modalities and cannot replace AD9990BBCZRL in CCD-based imaging systems.

Availability

AD9990BBCZRL is available at Aetrix Electronics and suitable for digital still camera modules, industrial machine vision systems, and scientific CCD instrumentation requiring stable component supply, long-lifecycle availability, and guaranteed traceability.

Supply support for AD9990BBCZRL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD9990BBCZRL belongs to Analog Devices' CCD Signal Processor product line, engineered specifically for high-fidelity, low-noise digitization and precise timing control of dual-output CCD image sensors in professional imaging equipment.

FAQ

What is the operating temperature range specified for the AD9990BBCZRL?

The AD9990BBCZRL is specified to operate over an industrial temperature range of −25°C to +85°C. This range supports deployment in consumer digital cameras, industrial inspection systems, and scientific instruments without external thermal regulation. The on-chip LDO regulators and precision timing core maintain parameter stability across this full range, as verified in Analog Devices' AD9990 Rev. SpB characterization data.

Does the AD9990BBCZRL support external clock synchronization?

Yes, the AD9990BBCZRL includes an on-chip sync generator with dedicated HD (horizontal drive) and VD (vertical drive) input pins. These accept TTL/CMOS-level external sync signals to lock the internal timing core, enabling frame-accurate synchronization across multiple AD9990BBCZRL devices or with host processors. This feature is essential for multi-sensor stereo imaging or broadcast-grade genlock applications.

How many general-purpose outputs does the AD9990BBCZRL provide, and what are their capabilities?

The AD9990BBCZRL provides eight general-purpose outputs (GPO1 through GPO8), each configurable as active-high or active-low with programmable delay and pulse width. They support shutter control, system reset signaling, LED strobing, or auxiliary timing functions. All GPOs are driven from the internal 3 V LDO supply and tolerate 3.3 V logic levels, enabling direct interface with common camera module peripherals without level shifters.

Can the AD9990BBCZRL drive CCD horizontal and vertical clocks directly?

Yes, the AD9990BBCZRL integrates on-chip 3 V horizontal drivers (H1A–H4A, H1B–H4B) and vertical clock drivers (XV1–XV24), eliminating the need for external buffer ICs. Each driver delivers rail-to-rail CMOS output with fast rise/fall times (<5 ns) and sufficient current (±20 mA) to drive typical CCD gate capacitances up to 100 pF per line, as confirmed in the AD9990BBCZRL functional block diagram and electrical specifications.

What is the function of the Precision Timing® core in the AD9990BBCZRL?

The Precision Timing® core in the AD9990BBCZRL enables programmable delay adjustment of high-speed clocks with ~488 ps resolution at 32 MHz operation. It allows sub-pixel-level alignment of RG, H, and V clocks relative to CCD pixel output timing - critical for minimizing sampling jitter, suppressing kTC noise, and ensuring consistent CDS performance. This capability is implemented in hardware and does not require external FPGA or microcontroller intervention.