Analog Devices Inc. AD9949KCPZRL

Overview

AD9949KCPZRL from Analog Devices is a 12-bit CCD signal processor integrating analog front-end (CDS, PxGA, VGA, black level clamp, 36 MSPS ADC) and a programmable Precision Timing™ core with <600 ps clock resolution. It delivers pixel-level timing control for high-speed digital imaging systems operating up to 36 MHz, supporting CCDs in digital still cameras and industrial inspection equipment.

For engineers reviewing the AD9949KCPZRL datasheet, AD9949KCPZRL pinout, AD9949KCPZRL application, or AD9949KCPZRL equivalent, this page provides verified functional identity, confirmed 40-lead LFCSP package mapping, validated timing and gain specifications, and two documented alternative parts for CCD signal chain design.

Technical Context

The AD9949KCPZRL implements a fully integrated CCD signal chain: correlated double sampling removes reset noise, a 0–18 dB pixel gain amplifier (PxGA®) enables per-pixel gain tuning, and a 6–42 dB 10-bit VGA provides coarse analog gain before the 12-bit, 36 MSPS ADC. Its analog front end operates with AVDD = 2.7–3.6 V and supports full-scale input ranges up to 2.0 V p-p.

The Precision Timing™ core uses a single CLI input clock (up to 36 MHz) to generate synchronized, programmable high-speed outputs - RG, H1–H4, SHP, SHD - with edge placement resolution of t_CLI/48 (<600 ps at 36 MHz). All timing outputs are digitally programmable via a 3-wire serial interface and support drive currents up to 30 mA per output.

Key Specifications

Pinout & Package

AD9949KCPZRL is housed in a 40-lead Lead Frame Chip Scale Package (LFCSP) with an exposed thermal paddle. The package supports reflow soldering and provides low thermal resistance (θ_JA = 27°C/W) on a 4-layer PCB with paddle soldered to ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9949KCPZRL, AD9948KCPZRL offers identical timing programmability and package but trades 2 bits of resolution and 4 MSPS speed for lower cost - making it viable for mid-tier imaging. TDC1000YFFT belongs to a different sensor domain entirely and cannot replace AD9949KCPZRL in CCD signal chains.

Availability

AD9949KCPZRL is available at Aetrix Electronics and suitable for digital still cameras, industrial machine vision systems, and medical endoscopy equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for AD9949KCPZRL 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and signal conditioning.

The AD9949KCPZRL belongs to Analog Devices' CCD signal processor product line, engineered specifically for high-fidelity, low-noise digitization and sub-nanosecond timing control in professional and industrial imaging systems.

FAQ

What is the maximum pixel clock frequency supported by the AD9949KCPZRL?

The AD9949KCPZRL supports a maximum CLI input clock frequency of 36 MHz, enabling operation with CCDs requiring up to 36 million pixels per second throughput. This is specified in the General Specifications table (Table 1) and confirmed in the Absolute Maximum Ratings section of the Rev. C datasheet. The AD9949KCPZRL's 12-bit ADC and Precision Timing™ core are fully characterized at this rate.

Does the AD9949KCPZRL include on-chip CCD clock drivers?

Yes, the AD9949KCPZRL integrates on-chip 3 V CCD clock drivers for RG, H1, H2, H3, and H4 outputs, each capable of delivering up to 30 mA. These drivers are programmable in polarity and edge position via internal registers and require no external level-shifting components - a key feature detailed in the General Description and Timing Specifications sections of the datasheet.

What is the function of the CLP/PBLK pin on the AD9949KCPZRL?

The CLP/PBLK pin (Pin 39) on the AD9949KCPZRL is a multifunction digital output that can be configured via register CLPBLKOUT to generate either CLPOB (correlated clamp) or PBLK (pixel blanking) pulses. Its timing is fully programmable using dedicated CLPOB and PBLK register sets, allowing precise alignment with CCD horizontal scan phases - as described in Tables 10 and 11 of the Rev. C datasheet.

How does the Precision Timing™ core achieve <600 ps resolution in the AD9949KCPZRL?

The AD9949KCPZRL's Precision Timing™ core divides the CLI input clock period into 48 discrete edge positions. At 36 MHz (t_CLI = 27.8 ns), this yields a resolution of 27.8 ns ÷ 48 ≈ 579 ps - meeting the <600 ps specification. Edge placement for RG, H1–H4, SHP, and SHD is programmed via 6-bit register fields mapped to these 48 positions, as defined in Table 16 and Figure 17 of the datasheet.

Is the AD9949KCPZRL pin-compatible with the AD9949A variant?

No, the AD9949KCPZRL is not pin-compatible with the AD9949A. While both share the same 40-lead LFCSP package and pinout, the AD9949A introduces an updated H-counter behavior (hold-at-max instead of rollover at 4096 pixels) and supports CCD line lengths exceeding 4096 pixels - changes implemented at the silicon level without physical pin alterations. However, the datasheet does not declare them as drop-in replacements, and register compatibility must be verified per application.