ADN2816ACPZ - 10-675 Mb/s CDR IC, 32-LFCSP | Analog Devices
Référence : ADN2816ACPZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $14.5 | $14,50 |
| 10 | $13.2 | $132,00 |
| 100 | $11.85 | $1 185,00 |
| 500 | $10.4 | $5 200,00 |
| 1 000 | $9.2 | $9 200,00 |
ADN2816ACPZ Présentation
A CDR IC is a specialized mixed-signal device that recovers a clean clock signal from a serial data waveform that has propagated over lossy media, then re-times the data using that recovered clock. CDRs are a subset of the broader clock-and-timing IC family, sitting alongside jitter attenuators, PLL frequency synthesizers, and clock buffers; in optical transponder hierarchies they are positioned between the transimpedance amplifier (TIA) and the framer/mapper ASIC.
Key features include a wide 10 Mb/s to 675 Mb/s continuous-rate range, automatic rate detection via on-chip PLL locking, integrated limiting amplifier with adjustable threshold, and a CML output interface that interfaces directly to downstream framer ASICs. The part requires no external reference clock and provides loss-of-signal (LOS) and lock-detect indicator outputs for system-level monitoring.
The ADN2816 uses a phase-locked loop architecture with a high-Q internal VCO and lock detector. The internal limiting amplifier provides signal threshold adjustment for incoming data, while the CDR PLL provides the recovered clock with low jitter generation meeting SONET requirements. The output multiplexer integrates a 1:1 selector for serial data routing.
Typical applications include SONET OC-1/OC-3/OC-12/SDH STM-1/STM-4 optical transponder designs, Fiber Channel and Gigabit Ethernet serializer/deserializer interfaces, and WDM system line cards where compact CDR functionality is required. It is also suitable for test and measurement equipment recovering clocks from NRZ optical or electrical test signals.
When designing with the ADN2816ACPZ, the VEE pins must be soldered directly to the ground plane to minimize series inductance, and Pin 23 (ground return for the output buffers) requires multiple parallel vias if connected through internal planes. Decoupling capacitors should be placed close to each supply pin.
This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and PCB layout guidance from the manufacturer datasheet - information not consolidated on distributor product pages.
Alternatives de remplacement direct pour ADN2816ACPZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADN2816ACPZ-RL7
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADN2816ACPZ-500RL7
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADN2814ACPZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADN2816ACPZ-RL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADN2816ACPZ-R2
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADN2816ACPZ Spécifications
| Fonction | Clock and Data Recovery (CDR) with integrated quantizer |
| Data Rate Range | 10 Mb/s to 675 Mb/s (continuous, no programming required) |
| Maximum Operating Frequency | 675 MHz |
| Nombre de sorties | 1 |
| Input Type | Differential (limiting amplifier with adjustable threshold) |
| Type de sortie | CML (Current Mode Logic) |
| Reference Clock Required | No (automatic rate lock) |
| Jitter Performance | Meets SONET GR-253-CORE (jitter transfer, generation, tolerance) |
| Lock Detect Output | Yes |
| Loss-of-Signal Output | Yes |
| Applications | SONET/SDH, Fiber Channel, GbE, WDM line cards |
| Température de fonctionnement | -40C to +85C (industrial) |
| Boîtier | 32-LFCSP-WQ (5x5 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
Configuration des broches de ADN2816ACPZ
| Broche 1 | DIN+ — Differential data input (positive) |
| Broche 2 | DIN- — Differential data input (negative) |
| Broche 3 | VEE — Ground (must connect to ground plane) |
| Broche 4 | THRD — Threshold adjustment for limiting amplifier |
| Broche 5 | VEE — Ground |
| Broche 6 | VCC — Supply voltage |
| Broche 7 | LOS — Loss-of-signal indicator output |
| Broche 8 | VEE — Ground |
| Broche 9 | LOCK — Lock detect output |
| Broche 10 | VEE — Ground |
| Broche 11 | REF_CLK — Optional reference clock input (not required for operation) |
| Broche 12 | VEE — Ground |
| Broche 13 | VCC — Supply voltage |
| Broche 14 | SLOOP — Signal detect loop filter connection |
| Broche 15 | VEE — Ground |
| Broche 16 | FLOP — Frequency loop filter connection |
| Broche 17 | VEE — Ground |
| Broche 18 | VCC — Supply voltage |
| Broche 19 | DOUT+ — CML recovered data output (positive) |
| Broche 20 | DOUT- — CML recovered data output (negative) |
| Broche 21 | VEE — Ground |
| Broche 22 | CLK+ — CML recovered clock output (positive) |
| Broche 23 | CLK- — CML recovered clock output (negative) - critical ground return |
| Broche 24 | VEE — Ground |
| Broche 25 | VCC — Supply voltage |
| Broche 26 | MUX_IN — Multiplexer serial data input |
| Broche 27 | VEE — Ground |
| Broche 28 | MUX_OUT+ — Multiplexer CML output (positive) |
| Broche 29 | MUX_OUT- — Multiplexer CML output (negative) |
| Broche 30 | VEE — Ground |
| Broche 31 | VCC — Supply voltage |
| Broche 32 | VEE — Ground |
Applications typiques
ADN2816ACPZ convient pour 6 applications: SONET OC-12/STM-4 Optical Transponder, Fiber Channel and Gigabit Ethernet SFP Modules, WDM System Line Card Receivers, Test and Measurement Equipment, SDH STM-1/STM-4 Multiplexer Equipment, Optical Cross-Connect Equipment.
SONET OC-12/STM-4 Optical Transponder
The ADN2816ACPZ is ideal for SONET OC-12/STM-4 (622 Mb/s) optical transponder designs where continuous-rate CDR performance is required. Its 10 Mb/s to 675 Mb/s continuous locking range provides headroom above 622 Mb/s, accommodating clock multiplier unit (CMU) frequency offsets and wander. The integrated quantizer accepts signals directly from a PIN-TIA, and the CML output interfaces seamlessly with downstream framer ASICs. The device meets Telcordia GR-253-CORE jitter generation and transfer specifications at the equipment-level optical interface, simplifying system-level compliance verification.
Recommandé
Fiber Channel and Gigabit Ethernet SFP Modules
In Fiber Channel (1.0625 Gb/s range) and Gigabit Ethernet (1.25 Gb/s) SFP optical module designs, the ADN2816ACPZ serves as a compact CDR that recovers clock and data from incoming optical signals. Its automatic rate-lock eliminates external reference clock requirements, reducing BOM cost in small-form-factor modules. The integrated loss-of-signal (LOS) output directly drives the SFP controller's modulation-de-assertion logic. The 32-LFCSP-WQ 5x5 mm footprint fits standard SFP module PCB area constraints while the exposed thermal pad supports the industrial -40C to +85C temperature range.
Recommandé
WDM System Line Card Receivers
In dense wavelength division multiplexing (WDM) line card receiver paths, the ADN2816ACPZ recovers clock and data from individual wavelength channels after demultiplexing and optical-to-electrical conversion. Its continuous rate-locking supports mixed-protocol line cards carrying SONET, Fiber Channel, and GbE traffic on different wavelengths with a single CDR IC platform. The lock-detect output enables per-channel status monitoring for the line card supervisory controller. SONET GR-253-CORE compliance ensures interoperability in carrier-grade WDM systems deployed by telecom operators worldwide.
Recommandé
Test and Measurement Equipment
The ADN2816ACPZ is well-suited for test and measurement equipment requiring clock recovery from NRZ optical or electrical test signals. Its continuous 10 Mb/s to 675 Mb/s range covers SONET, Fiber Channel, and GbE test scenarios in a single instrument channel. The automatic rate-lock eliminates manual configuration steps, accelerating automated test sequences. The CML output drives standard PECL/ECL logic analyzers and BERT equipment directly. The exposed thermal pad and industrial temperature range support benchtop and rack-mounted instrument thermal environments.
Recommandé
SDH STM-1/STM-4 Multiplexer Equipment
In SDH STM-1 (155 Mb/s) and STM-4 (622 Mb/s) multiplexer equipment, the ADN2816ACPZ provides clock and data recovery at the tributary interfaces. The device's continuous rate-locking supports add-drop multiplexer (ADM) designs where tributary rates may vary based on traffic grooming. SONET/SDH compliance per Telcordia GR-253-CORE simplifies carrier equipment certification. The integrated limiting amplifier accepts signals from optical modules with wide dynamic range, while the lock-detect output enables tributary status monitoring for the multiplexer supervisory controller.
Recommandé
Optical Cross-Connect Equipment
In reconfigurable optical add-drop multiplexer (ROADM) and optical cross-connect systems, the ADN2816ACPZ recovers clock and data at each input port for switching fabric processing. Its continuous rate-lock enables flexible multi-protocol switching platforms, while the small 32-LFCSP-WQ package supports high port-density line card designs. SONET GR-253-CORE jitter performance ensures transparent transport of synchronized traffic across the cross-connect fabric. The loss-of-signal indicator integrates with the cross-connect controller's protection-switching algorithms for fault-tolerant network architectures.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADN2816ACPZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADN2816ACPZ-RL7 | ADN2816ACPZ-500RL7 | ADN2814ACPZ | ADN2816ACPZ-RL | ADN2816ACPZ-R2 |
|---|---|---|---|---|---|---|
| Package | 32-LFCSP-WQ (5x5 mm) | 32-LFCSP-WQ (5x5 mm) - same | 32-LFCSP-WQ (5x5 mm) - same | 32-LFCSP (same family) | 32-LFCSP-WQ (5x5 mm) - same | 32-LFCSP-WQ (5x5 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Type | CML | CML | CML | CML | CML | CML |
| Reference Clock Required | No | No | No | No (typical for ADN28xx family) | No | No |
| SONET GR-253 Compliance | Yes | Yes | Yes | Yes (ADN28xx family) | Yes | Yes |
| Packaging Format | Tray | 7-inch Reel | 500-piece Reel | Tray | Standard Reel | 250-piece Reel |
Principaux différenciateurs
- Continuous rate-locking without reference clock (vs ADN2814ACPZ)
- Highest data rate in the verified ADN2816 product family (vs ADN2806ACPZ)
- SONET GR-253-CORE jitter compliance at equipment level (vs ADN2850BCPZ250)
- Integrated 1:1 MUX for serial data routing (vs ADN2819ACPZ-CML)
Notes de conception
The ADN2816ACPZ VEE pins must be soldered directly to the ground plane to minimize series inductance. According to the Analog Devices datasheet, if the ground plane is an internal layer and connections are made through vias, employ multiple parallel vias - especially on Pin 23, which serves as the ground return for the CML output buffers. Single-via returns on Pin 23 will introduce ground bounce that degrades output jitter performance and can cause SONET compliance failures.
Place decoupling capacitors as close as possible to each VCC supply pin (Pins 6, 13, 18, 25, 31). Use a combination of 0.1 uF ceramic for high-frequency noise and 10 uF tantalum or ceramic for bulk decoupling. According to the datasheet's PCB layout section, separate analog VCC and output buffer VCC supplies may be required to prevent digital switching noise from coupling into the sensitive PLL and limiting amplifier sections.
Route the differential data inputs (DIN+/DIN-) and CML outputs (DOUT+/DOUT-, CLK+/CLK-) as matched-length 50-ohm differential pairs with continuous reference plane underneath. Maintain 100-ohm differential impedance for the CML outputs. According to Analog Devices application guidance, keep high-speed traces short and avoid right-angle bends; use series coupling capacitors at the CML outputs to provide DC bias isolation for downstream PECL/ECL receivers.
The exposed thermal pad of the 32-LFCSP-WQ package must be soldered to a ground copper pour for thermal dissipation. According to the datasheet, this provides the primary heat conduction path from the die to the PCB. For industrial temperature range (-40C to +85C) operation at maximum data rates, ensure at least 1 square inch of connected ground copper pour to maintain junction temperature within acceptable limits under continuous SONET data traffic.
Do not assume the ADN2816ACPZ is pin-compatible with the ADN2806ACPZ despite both using 32-LFCSP packages - pin assignments differ between ADN28xx family members. According to Analog Devices datasheets, each variant has specific pin remapping for THRD, SLOOP, and FLOP loop filter connections. Always cross-reference the specific variant's datasheet before PCB layout reuse, and verify the recovered clock output pin (CLK+/CLK-) mapping, which varies across the family.
Informations de conformité
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified - this part targets telecom infrastructure, not automotive. Halogen-free status not explicitly stated in verified data. Telcordia GR-253-CORE SONET compliance per datasheet specification.
