NXP Semiconductors TFF1013HN/N1,135

Overview

TFF1013HN/N1,135 from NXP Semiconductors is an integrated Ku-band downconverter IC for satellite LNB applications, combining a low-noise pre-amplifier, mixer, buffer amplifier, and PLL synthesizer in a single DHVQFN16 package. It operates across 10.7–12.75 GHz RF input, delivers 33 dB typical conversion gain, achieves 9 dB single-sideband noise figure, and supports dual LO frequencies (9.75 GHz / 10.6 GHz) for DVB-S/S2 digital satellite reception.

For engineers reviewing the TFF1013HN/N1,135 datasheet, TFF1013HN/N1,135 pinout, TFF1013HN/N1,135 application, or TFF1013HN/N1,135 equivalent, this device is selected for high-reliability, alignment-free LNB designs requiring stable 5 V operation, low phase noise (<1.5°RMS integrated), and minimal external components - especially where thermal performance (Rth(j-c) = 35 K/W) and impedance-matched RF/IF interfaces (50 Ω RF, 75 Ω IF) are critical.

Technical Context

The TFF1013HN/N1,135 integrates a crystal-controlled PLL with on-chip VCO and PFD/charge pump to generate precise 9.75 GHz or 10.6 GHz LO signals from a 25 MHz fundamental-mode crystal. Its RF front-end uses pHEMT-based LNA stages optimized for Ku-band low-noise amplification prior to active mixing.

Conversion occurs within a fully differential signal path supporting AC-coupled RF input (10.7–12.75 GHz) and IF output (950–2150 MHz), with internal bias regulation (VREG pin) and HB pin-controlled band switching enabling seamless transition between low-band (10.7–11.7 GHz) and high-band (11.7–12.75 GHz) satellite channels.

Key Specifications

Pinout & Package

Package: DHVQFN16 (SOT763-1), plastic dual in-line compatible thermal enhanced very thin quad flat package; 2.5 × 3.5 × 0.85 mm body size with exposed die pad for thermal and RF grounding.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar satellite LNB downconverter applications.

Compared with MAX2104ETL+ and STV0902B, the TFF1013HN/N1,135 offers superior integration density and lower external part count for fixed-frequency Ku-band LNBs, trading programmability and dual-path capability for reduced cost, smaller footprint, and guaranteed alignment-free performance.

Availability

TFF1013HN/N1,135 is available at Aetrix Electronics and suitable for satellite TV receiver modules, professional broadcast IF distribution systems, and maritime/mobile Ku-band antenna units requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TFF1013HN/N1,135 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The TFF1013HN/N1,135 belongs to NXP's satellite receiver front-end product line, engineered specifically for high-performance, cost-sensitive Ku-band LNB modules in digital satellite broadcasting systems.

FAQ

What is the primary function of the TFF1013HN/N1,135 in a satellite LNB system?

The TFF1013HN/N1,135 serves as a fully integrated Ku-band downconverter IC that performs low-noise RF amplification, crystal-based PLL LO generation, and active mixing to convert incoming 10.7–12.75 GHz satellite signals to a 950–2150 MHz IF output. Its design eliminates the need for discrete LNAs, mixers, and synthesizers in standard DVB-S/S2 LNB modules, making it central to compact, alignment-free receiver front-ends.

How does the HB pin control LO frequency selection in the TFF1013HN/N1,135?

The HB pin on the TFF1013HN/N1,135 is a logic-controlled input that selects between two fixed LO frequencies: applying 0–0.8 V (LOW) configures the internal PLL for 9.75 GHz (low band), while 2.0–5.5 V (HIGH) selects 10.6 GHz (high band). This enables seamless switching between Ku-band satellite orbital slots without modifying external components or firmware - a key feature for universal LNB designs.

What crystal specifications are required for stable operation of the TFF1013HN/N1,135?

The TFF1013HN/N1,135 requires a 25 MHz fundamental-mode crystal with 10 pF load capacitance and ≤40 Ω equivalent series resistance (ESR). The crystal connects directly between XO1 and XO2 pins. Deviations from these values may cause LO frequency inaccuracy or PLL lock failure, as the internal synthesizer divides the crystal frequency by 390 (for 9.75 GHz) or 424 (for 10.6 GHz) to generate the final LO.

Why does the TFF1013HN/N1,135 use multiple ground pins (RF_GND1–3, IF_GND, GND1, GND2)?

The TFF1013HN/N1,135 employs eight dedicated ground terminals to isolate RF input, IF output, analog PLL, and substrate return paths - minimizing crosstalk and optimizing noise performance. All ground pins must be connected to the same low-inductance copper pour tied to the exposed die pad. This multi-ground architecture ensures stable 50 Ω RF matching, 75 Ω IF termination, and clean internal biasing under high-frequency operation.

Can the TFF1013HN/N1,135 operate from a supply voltage other than 5 V?

The TFF1013HN/N1,135 is specified for operation at 5 V nominal supply (range: 4.5–5.5 V). Operation outside this range risks functional failure or permanent damage: absolute maximum VCC is +6 V, and minimum allowable is −0.5 V. While some internal regulators exist (e.g., VREG pin), the core RF and PLL circuits require precisely regulated 5 V - using a dedicated low-noise LDO is strongly recommended to maintain phase noise and gain stability.