Analog Devices Inc. ADN4600ACPZ

Overview

ADN4600ACPZ from Analog Devices is an 8 × 8 asynchronous nonblocking crosspoint switch IC for high-speed serial interconnects, supporting NRZ data rates up to 4.25 Gbps per channel with programmable receive equalization (up to 22 dB boost) and transmit pre-emphasis (up to 9.5 dB), operating across −40°C to +85°C in a 64-lead LFCSP package. It serves as a reconfigurable signal routing element in backplane, line card, and cable interface applications.

For engineers reviewing the ADN4600ACPZ datasheet, ADN4600ACPZ pinout, ADN4600ACPZ application, or ADN4600ACPZ equivalent, this page delivers verified specifications, validated I²C-controlled switching behavior, confirmed FR4 trace compensation capability (up to 30 inches at 4.25 Gbps), real-world jitter performance (≤30 ps p-p deterministic jitter), and precise power supply requirements (1.8 V to 3.3 V core).

Technical Context

The ADN4600ACPZ implements a fully buffered, asynchronous 8×8 crossbar switch core with independent per-channel control via I²C, enabling multicast and broadcast configurations without blocking. Its receiver stage integrates a multizero continuous-time equalizer with eight discrete settings optimized for FR4 loss profiles, while the transmitter provides seven programmable pre-emphasis levels and adjustable output swing (100–1800 mV p-p differential).

Each of the eight differential input pairs (INx/IPx) supports dc- or ac-coupled CML/PECL-compatible signaling with on-chip 50 Ω termination referenced to user-configurable VTTI/VTTO supplies. Channel-to-channel skew is specified at ≤50 ps, and propagation delay is 1 ns - critical for timing-sensitive serial link aggregation and redundancy switching.

Key Specifications

Pinout & Package

ADN4600ACPZ is housed in a 9 mm × 9 mm, 64-lead Lead Frame Chip Scale Package (LFCSP) with exposed EPAD connected to VEE. The package supports fine-pitch routing and low-inductance grounding for high-speed differential signaling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed crosspoint switch applications.

Compared with MAX9278ATJ+T and DS25BR120TSQ, the ADN4600ACPZ uniquely delivers full 8×8 nonblocking switching with per-channel programmable equalization and pre-emphasis - making it the only option among the three capable of dynamic, low-skew serial link reconfiguration in telecom and data center infrastructure.

Availability

ADN4600ACPZ is available at Aetrix Electronics and suitable for FibreChannel switch fabric, XAUI backplane interconnect, Gigabit Ethernet line card, and InfiniBand® cable interface applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for ADN4600ACPZ 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, power, and connectivity applications.

The ADN4600ACPZ belongs to Analog Devices' high-speed serial interconnect product line, designed specifically for reconfigurable, low-latency signal routing in demanding backplane, line card, and cable-based systems operating up to 4.25 Gbps.

FAQ

What is the maximum supported data rate for ADN4600ACPZ?

The ADN4600ACPZ supports NRZ data rates up to 4.25 Gbps per channel, as confirmed in the Rev. C datasheet Electrical Specifications table. This maximum rate applies under standard conditions: VCC = 1.8 V, PRBS27−1 pattern, BER = 1e−12, and proper FR4 trace equalization. Operation at this rate requires optimal receive equalization and transmit pre-emphasis settings configured via I²C.

Does ADN4600ACPZ support dc-coupled inputs and outputs?

Yes, ADN4600ACPZ supports both dc- and ac-coupled differential CML signaling. Its on-chip 50 Ω terminations are referenced to user-supplied VTTI (inputs) and VTTO (outputs), enabling direct dc coupling across multiple logic families. The datasheet specifies valid voltage ranges: VTTI must be between (VEE + 0.4 V + 0.5 × VID) and (VCC + 0.5 V), and VTTO between (VCC − 1.1 V + 0.5 × VOD) and (VCC + 0.5 V).

How many I²C addresses does ADN4600ACPZ support?

The ADN4600ACPZ supports four unique I²C addresses via the ADDR0 and ADDR1 pins, allowing up to four devices on the same bus. ADDR[1:0] selects the base address: 0x48 (00), 0x49 (01), 0x4A (10), or 0x4B (11). This is explicitly defined in the Pin Function Descriptions table and Register Map section of the Rev. C datasheet.

What is the purpose of the P/N inversion feature in ADN4600ACPZ?

The P/N inversion feature in ADN4600ACPZ allows per-channel swapping of differential input polarity (INx/IPx) to eliminate board-level trace crossovers. As stated in the Theory of Operation section, this reduces via-induced impedance discontinuities and simplifies routing in high-density layouts - especially critical for maintaining signal integrity above 3 Gbps. It is controlled independently per channel via the RX[7:0] configuration registers.

Is ADN4600ACPZ compatible with 8b10b encoded data?

Yes, ADN4600ACPZ explicitly supports 8b10b, scrambled, and uncoded NRZ data formats, as stated in the General Description and Applications sections of the Rev. C datasheet. Its asynchronous architecture and fully buffered signal path preserve encoding integrity without requiring clock-data recovery or alignment circuitry - making it suitable for FibreChannel and other 8b10b-based protocols.