NXP Semiconductors PTN3311D,118

Overview

PTN3311D,118 from NXP Semiconductors (formerly Philips) is a high-speed serial logic translator that converts PECL-level differential inputs to LVDS-level differential outputs. It operates from a single +3.3 V supply, supports up to 800 Mbps data throughput, and is housed in an 8-pin SO package (SOT96-1). It enables interoperability between optical transceiver ICs in telecom backplane interfaces.

For engineers reviewing the PTN3311D,118 datasheet, PTN3311D,118 pinout, PTN3311D,118 application, or PTN3311D,118 equivalent, key selection criteria include its PECL-to-LVDS translation direction, 800 Mbps max data rate, ±50 ps output pulse skew, 350 mV typical differential output voltage, and compatibility with SONET/SDH and ATM optical module designs.

Technical Context

The PTN3311D,118 implements a unidirectional PECL input interface compliant with EIA-644 and PECL standards, driving LVDS outputs with controlled offset voltage (1.250 V typ) and differential swing (350 mV typ). Its internal architecture avoids level-shifting circuitry, relying instead on direct current-mode logic translation optimized for low-jitter, high-fidelity signal integrity.

It features two independent ground pins (GND1, GND2) and dual supply pins (VCC1, VCC2) to isolate input and output power domains, minimizing noise coupling. Propagation delay is tightly bounded at 1–3 ns, and output transition times are specified at 500–650 ps under 100 Ω load and 5 pF capacitance.

Key Specifications

Pinout & Package

PTN3311D,118 is supplied in an 8-pin plastic small-outline package (SO8, SOT96-1), 3.9 mm body width, with gull-wing leads and standard JEDEC MO-153 footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed serial logic translation applications.

Compared with SN65LVDS32DR and MAX9110ESA+, the PTN3311D,118 offers native PECL input compatibility without external components, superior 800 Mbps throughput, and tighter 50 ps pulse skew - making it the optimal choice for telecom optical module signal integrity-critical paths.

Availability

PTN3311D,118 is available at Aetrix Electronics and suitable for SONET/SDH line cards, ATM switching infrastructure, and optical transceiver module manufacturing requiring stable component supply and long-term lifecycle support.

Supply support for PTN3311D,118 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

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and communications markets, with roots in Philips' pioneering analog and mixed-signal IC development.

The PTN3311D,118 belongs to NXP's high-speed interface translator product line, engineered specifically to simplify optical transceiver module integration by eliminating manual level-shifting design effort in telecom infrastructure.

FAQ

What is the primary function of the PTN3311D,118?

The PTN3311D,118 is a unidirectional high-speed serial logic translator that converts PECL-level differential inputs to LVDS-level differential outputs. It enables seamless interoperability between PECL-based optical transmitter ICs and LVDS-receiving system-on-chip devices. Its design eliminates the need for external biasing networks or level-shifting resistors, and it is validated for use in SONET OC-48 and ATM backplane applications. The PTN3311D,118 achieves this with a single 3.3 V supply and maintains tight timing parameters including ≤50 ps output pulse skew.

Does the PTN3311D,118 support bidirectional translation?

No, the PTN3311D,118 supports only unidirectional PECL-to-LVDS translation. It is not designed for reverse-direction (LVDS-to-PECL) operation - that function is implemented in the companion PTN3310D,118 device. Attempting to drive LVDS signals into the PTN3311D,118's VINP/VINN pins may exceed absolute maximum input voltage ratings and cause permanent damage. The PTN3311D,118's pinout, internal topology, and DC characteristics are strictly optimized for PECL input and LVDS output operation.

What package type is used for the PTN3311D,118?

The PTN3311D,118 is packaged in an 8-pin plastic small-outline (SO8) package per JEDEC standard SOT96-1, with 3.9 mm body width and gull-wing leads. This package is RoHS-compliant and qualified for lead-free reflow soldering. It is distinct from the TSSOP8 variant (PTN3311DP), which uses SOT505-1 outline. The SO8 package provides robust thermal performance and mechanical reliability for telecom optical module assembly, and its footprint is compatible with industry-standard pick-and-place and AOI inspection equipment.

What is the maximum operating temperature range for the PTN3311D,118?

The PTN3311D,118 is rated for operation from –40 °C to +85 °C ambient temperature, meeting industrial-grade requirements for telecom infrastructure equipment deployed in uncontrolled environments such as central office cabinets and outdoor base stations. This range is verified per the manufacturer's recommended operating conditions and supported by thermal characterization in the original Philips product data sheet. Operation outside this range may result in degraded AC performance, increased jitter, or violation of output voltage specifications - the PTN3311D,118 is not characterized for extended temperature operation beyond +85 °C.

Can the PTN3311D,118 be used with a 2.5 V supply?

No, the PTN3311D,118 is specified only for 3.0 V to 3.6 V supply operation, with typical performance characterized at 3.3 V. Applying 2.5 V violates the minimum recommended supply voltage and will result in noncompliant PECL input thresholds, reduced LVDS output swing (<250 mV), and potential failure to meet 800 Mbps data rate guarantees. The internal PECL receiver circuitry requires VCC ≥3.0 V to maintain valid VIH/VIL margins, and the LVDS driver stage is not functional below this threshold. The PTN3311D,118 must be powered within its specified 3.3 V ±10% window for guaranteed operation.