WM8259SCDS/V - 16-Bit CCD/CIS AFE | Cirrus Logic
Référence : WM8259SCDS/V ✓ ActifWM8259SCDS/V Présentation
An analog front end, or AFE, is a semiconductor interface between an imaging sensor and the downstream digital signal-processing or storage system. Its role in the imaging hierarchy is sensor interface, analog signal conditioning, and data conversion. The WM8259SCDS/V belongs to the broader CCD/CIS ADC and ADC/DAC product categories, while the 16-bit ADC and four-bit-wide parallel output implement the digital sampling interface.
The device provides two selectable video-input pins and one complete analog processing channel. According to the manufacturer datasheet, that channel includes reset-level clamping, correlated double sampling, programmable gain, and offset adjustment. Internal multiplexers permit rapid switching between offset and gain settings during line-by-line color processing. These functions reduce the amount of external analog conditioning normally required around a CCD or CIS sensor.
Its 16-bit conversion resolution and 3 MSPS sampling rate support imaging designs that require more precision than an 8-bit or 12-bit sensor interface. The 132 mW operating-power figure is suitable for compact camera, scanner, and machine-vision systems where signal-chain power can affect thermal design. The 3.3 V supply and four-bit-wide digital output organize the device around contemporary CMOS image-sensor interfaces.
Typical applications include CCD-based scanners, CMOS image-sensor modules, color-line imaging systems, surveillance cameras, barcode readers, industrial vision equipment, and embedded imaging controllers. In each case, the selectable inputs, analog clamp, correlated double sampling, gain controls, and offset controls help implement a consistent readout chain close to the image sensor.
PCB design should preserve the manufacturer’s recommended input, output, and bypass-capacitor placement because the AFE combines high-speed sampling with sensitive analog processing. Keep sensor traces short, provide a low-impedance return path, and follow the pin-configuration and layout guidance in the datasheet. Verify that downstream logic matches the device’s four-bit-wide output and required clocking arrangement.
This product page combines the manufacturer-function description, distributor package and speed information, a verified same-package cross-reference, and practical interface guidance. It is intended to help engineers identify the correct imaging AFE, distinguish the available order code, plan board-level integration, and evaluate where this single-channel 16-bit CCD/CIS front end fits.
Alternatives de remplacement direct pour WM8259SCDS/V — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
WM8259SCDS/RV
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
WM8259SCDS/V Valeurs maximales et caractéristiques électriques
| Product Type | Single-channel analog front end (AFE) |
| ADC Resolution | 16 bit |
| Maximum Sampling Rate | 3 MSPS |
| Operating Power | 132 mW |
| Tension d'alimentation | 3.3 V |
| Compatible Sensor Type | CCD and CMOS image sensor (CIS) |
| Number of Channels | 1 channel |
| Number of Selectable Video Inputs | 2 inputs |
| Digital Output Width | 4 bit |
| Reset-Level Clamping | Supported |
| Correlated Double Sampling | Supported |
| Programmable Gain | Supported |
| Programmable Offset | Supported |
| Internal Gain and Offset Multiplexing | Supported for line-by-line color processing |
| Boîtier | 20-pin SSOP |
| Type de montage | Surface mount |
Guide de configuration des broches du WM8259SCDS/V 20-pin ssop
Configuration des broches du WM8259SCDS/V (boîtier 20-pin ssop). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour WM8259SCDS/V.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
WM8259SCDS/V convient pour 6 applications: CCD Scanner Imaging, CMOS Image Sensor Module, Industrial Machine Vision, Color Line-Scan Camera, Barcode and Document Reader, Embedded Security Camera.
CCD Scanner Imaging
The WM8259SCDS/V fits CCD scanner readout designs requiring a compact 16-bit analog front end. Its one complete processing channel includes reset-level clamping, correlated double sampling, programmable gain, and offset adjustment, allowing sensor noise and pedestal variation to be controlled close to the image source. The 3 MSPS sampling rate supports repeated line and frame acquisition, while 132 mW operating power keeps the signal chain practical for space-constrained scanner electronics. The 20-pin SSOP package also supports compact board layouts. According to the Cirrus Logic manufacturer datasheet, two selectable video inputs support flexible source routing, and internal multiplexers enable rapid switching of gain and offset settings during line-by-line color processing.
Recommandé
CMOS Image Sensor Module
The WM8259SCDS/V is suitable for a CMOS image-sensor module that benefits from integrated analog conditioning before digital processing. Its 16-bit ADC resolution provides greater numerical headroom than lower-resolution image interfaces, while the 3 MSPS conversion rate supports practical video-frame readout rates. Two selectable video-input pins can simplify connections to compatible sensor outputs, and reset-level clamping establishes a controlled reference for subsequent correlated double sampling. With 132 mW operating power at 3.3 V, the AFE can support compact camera electronics without requiring a separate multichannel conditioning network.
Recommandé
Industrial Machine Vision
The WM8259SCDS/V supports industrial machine-vision electronics where repeatable image acquisition depends on accurate pedestal recovery, gain control, and offset adjustment. Its integrated reset-level clamping and correlated double sampling reduce the amount of external analog conditioning required around a CCD or CIS sensor. The 16-bit conversion resolution preserves subtle intensity differences for inspection and measurement tasks, while operation up to 3 MSPS supports rapid line scans. Internal multiplexing allows gain and offset to change efficiently between lines or color phases, making the device suitable for controlled factory imaging systems that must maintain deterministic signal behavior over repeated captures.
Recommandé
Color Line-Scan Camera
The WM8259SCDS/V fits color line-scan camera designs because its internal multiplexers support fast switching of gain and offset during line-by-line color processing. The device combines a 16-bit ADC with two selectable video inputs, reset-level clamping, and correlated double sampling in one 20-pin SSOP package. This integration helps reduce external analog circuitry while preserving the temporal and amplitude control needed for separate color channels. A maximum sampling rate of 3 MSPS provides sufficient throughput for many line-scan configurations, and 132 mW operating power is well suited to compact camera electronics where sensor interface density and power efficiency are important.
Recommandé
Barcode and Document Reader
The WM8259SCDS/V is appropriate for a barcode, document, or page-scanning system that reads compatible CCD or CIS sensors. The 16-bit ADC resolution captures low-contrast edges and fine tonal detail, while reset-level clamping and correlated double sampling establish repeatable signal levels from pixel to pixel. Operation at up to 3 MSPS supports high-speed line acquisition without requiring a large external analog front end. Its two selectable video inputs add routing flexibility for multi-region or multi-mode scanners. The compact 20-pin SSOP package and 132 mW operating power help satisfy the space and energy constraints common in compact document-imaging equipment.
Recommandé
Embedded Security Camera
The WM8259SCDS/V can serve as the sensor interface in a compact embedded security camera using a compatible CCD or CMOS image sensor. Two selectable video inputs support flexible sensor routing, while integrated reset-level clamping, correlated double sampling, gain adjustment, and offset adjustment reduce external conditioning complexity. The 16-bit conversion path preserves image detail for downstream compression and detection, and 3 MSPS operation handles conventional low-frame-rate surveillance streams. At 132 mW operating power and in a 20-pin SSOP package, the device is suitable for space-constrained camera electronics where low-power image acquisition and reproducible black-level handling are important.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour WM8259SCDS/V — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | WM8259SCDS/RV |
|---|---|---|
| Brand | Cirrus Logic | Cirrus Logic |
| Package | 20-pin SSOP | 20-pin SSOP - same package |
| Product Type | Single-channel analog front end | Single-channel analog front end |
| ADC Resolution | 16 bit | 16 bit |
| Maximum Sampling Rate | 3 MSPS | 3 MSPS |
| Operating Power | 132 mW | 132 mW |
| Supply Voltage | 3.3 V | 3.3 V |
| Selectable Video Inputs | 2 inputs | 2 inputs |
| Digital Output Width | 4 bit | 4 bit |
| Sensor Compatibility | CCD and CMOS image sensors | CCD and CMOS image sensors |
| Analog Processing | Clamping, correlated double sampling, gain and offset adjustment | Clamping, correlated double sampling, gain and offset adjustment |
Principaux différenciateurs
- Integrated single-channel CCD/CIS signal-conditioning functions (vs WM8259SCDS/RV)
- Four-bit-wide digital output supports a compact parallel interface (vs WM8259SCDS/RV)
- Two selectable video inputs with internal multiplexing (vs WM8259SCDS/RV)
Notes de conception
Place the WM8259SCDS/V close to the CCD or CIS output pins and follow the manufacturer’s pin-configuration and layout guidance. Keep video-input traces short, minimize loop area, and route them away from digital clock and output traces. The AFE combines sensitive analog sampling with a high-speed digital interface, so clean separation between sensor inputs and digital return paths reduces the risk of signal corruption.
Provide the recommended 3.3 V bypass network directly at the device supply pins and keep supply-return paths continuous. Because the device includes a 3 MSPS, 16-bit conversion path, inadequate decoupling can couple supply movement into the analog sampling result. Use the capacitor values and component placement shown in the manufacturer datasheet, and verify startup and channel-switching behavior across the intended sensor timing sequence.
Account for the four-bit-wide digital output when configuring the downstream ADC interface or digital controller. The manufacturer describes two selectable video inputs plus internal multiplexing for gain and offset, so source and setting transitions must be synchronized with the required pixel timing. Use short, properly terminated clock and data routes, and validate setup and hold behavior with the actual controller and sensor rather than treating the output as a generic parallel bus.
Do not substitute the SSOP-20 footprint based on package dimensions alone, and do not interchange the V and RV ordering suffixes without confirming procurement and assembly requirements. The verified WM8259SCDS/RV cross-reference reports matching terminals and package, but the complete pin and ordering information still governs production use. Check the clock source, output data mapping, analog input selection, and sensor reset sequence against the manufacturer application guidance.
Informations de conformité
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements were identified for the exact WM8259SCDS/V order code. AEC-Q100 qualification was not stated and is recorded as not applicable because this is an imaging analog front end rather than an automotive-qualified device.
