Renesas TBB1004DMTL-H

Overview

TBB1004DMTL-H from Renesas Electronics is a twin built-in biasing circuit MOS FET IC designed as a VHF/UHF RF amplifier for tuner front-end stages, featuring dual independent BBFETs (FET1 for UHF and FET2 for VHF), 6 V drain-source voltage rating, 21 mA typical drain current (FET1) and 20 mA (FET2), and integrated ESD protection rated to 200 V (C=200 pF, Rs=0).

For engineers reviewing the TBB1004DMTL-H datasheet, TBB1004DMTL-H pinout, TBB1004DMTL-H application, or TBB1004DMTL-H equivalent, this device serves as a compact, cost-optimized RF gain block with matched noise figure (1.7 dB typ. @900 MHz for FET1, 1.2 dB typ. @200 MHz for FET2) and power gain (21 dB typ. @900 MHz, 29 dB typ. @200 MHz) in a space-saving CMPAK-6 package.

Technical Context

The TBB1004DMTL-H integrates two discrete BBFETs - FET1 optimized for UHF operation (900 MHz, NF = 1.7 dB typ., PG = 21 dB typ.) and FET2 for VHF (200 MHz, NF = 1.2 dB typ., PG = 29 dB typ.) - sharing a common source terminal but with independent gate and drain connections. Each FET features built-in biasing circuitry enabling stable DC operating points without external resistive networks.

Its dual-gate architecture allows independent control of gain and noise performance: VG1 sets channel conduction while VG2 adjusts gain reduction characteristics, with cutoff voltages tightly specified (0.5–1.0 V for both gates). The device operates at 5 V supply with 100 kΩ gate resistance and exhibits low input capacitance (1.8 pF typ. for FET1, 2.7 pF typ. for FET2), supporting broadband impedance matching in 50 Ω systems.

Key Specifications

Pinout & Package

CMPAK-6 surface-mount package (RENESAS code PTSP0006JA-A), 2.2 mm × 1.35 mm × 0.7 mm body size, 6-terminal leadless molded structure with exposed thermal pad; marking "DM".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-band RF amplifier applications.

Compared with NE85633 and UPA803T, the TBB1004DMTL-H uniquely delivers simultaneous VHF/UHF amplification with zero external bias components and factory-integrated 200 V ESD protection - reducing tuner BOM count, PCB footprint, and qualification risk in broadcast receiver designs.

Availability

TBB1004DMTL-H is available at Aetrix Electronics and suitable for digital TV tuners, cable set-top boxes, FM radio receivers, and ISDB-T mobile modules requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.

Supply support for TBB1004DMTL-H 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

Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and RF solutions for automotive, industrial, and consumer electronics.

The TBB1004DMTL-H belongs to Renesas' Twin BBFET product line, engineered specifically for cost-sensitive, space-constrained broadcast tuner applications requiring integrated dual-band RF amplification with minimal external components.

FAQ

What is the primary function of the TBB1004DMTL-H in RF tuner designs?

The TBB1004DMTL-H functions as a dual-band RF amplifier integrating two independent BBFETs - one optimized for UHF (900 MHz) and the other for VHF (200 MHz) - within a single CMPAK-6 package. It replaces two discrete amplifiers and their associated bias networks, delivering 21 dB gain at 900 MHz and 29 dB gain at 200 MHz while maintaining low noise figures (1.7 dB and 1.2 dB respectively). This makes the TBB1004DMTL-H ideal for broadcast tuner front-ends where board space, component count, and ESD robustness are critical constraints.

Does the TBB1004DMTL-H require external bias resistors for operation?

No, the TBB1004DMTL-H does not require external bias resistors due to its built-in biasing circuitry for both FET1 and FET2. The datasheet specifies operation with RG = 100 kΩ for both gates, but this resistor is part of the internal structure - not an external component. External gate resistors are unnecessary in standard configurations, significantly reducing BOM count and PCB area. The TBB1004DMTL-H achieves stable ID(op) of 17 mA (FET1) and 20 mA (FET2) at 5 V supply without any external bias network, simplifying tuner design and improving thermal stability.

What is the ESD rating of the TBB1004DMTL-H and how is it implemented?

The TBB1004DMTL-H incorporates an integrated ESD absorbing diode that provides Human Body Model (HBM) protection rated to 200 V under C = 200 pF, Rs = 0 conditions. This protection is built directly into the silicon die and does not rely on external components. It ensures robust handling during automated assembly, reflow soldering, and end-user operation in tuner modules exposed to static discharge - a key reliability feature for consumer broadcast equipment. The ESD structure is validated per JEDEC JS-001 and contributes to the TBB1004DMTL-H's suitability for high-volume manufacturing environments without additional protection circuitry.

How does the pin configuration of the TBB1004DMTL-H support dual-band isolation?

The TBB1004DMTL-H uses physically separated drain and gate terminals - Drain(1)/Gate-1(1)/Gate-1(2) for the UHF FET and Drain(2)/Gate-2 for the VHF FET - with only the Source terminal shared. This pinout prevents inter-band signal coupling through shared paths, enabling independent impedance matching and biasing for each band. The separation allows designers to route UHF and VHF signal paths on different PCB layers or sections, minimizing crosstalk. Pin 2 (Source) serves as a common RF ground reference but is designed with low-inductance layout requirements to maintain isolation - a critical feature confirmed in Renesas' test circuits and application notes for the TBB1004DMTL-H.

What are the thermal limitations of the TBB1004DMTL-H in continuous operation?

The TBB1004DMTL-H has a maximum channel temperature (Tch) of 150°C and a channel power dissipation (Pch) limit of 250 mW under defined test conditions (glass epoxy board, 49 mm × 38 mm × 1 mm). Its CMPAK-6 package includes an exposed thermal pad that must be soldered to a copper pour for effective heat transfer. At typical operating conditions - VDS = 5 V, ID = 17–20 mA - power dissipation ranges from 85 to 100 mW, well within limits. However, ambient temperature rise above 25°C reduces allowable dissipation linearly per the derating curve on page 5 of the datasheet, requiring thermal design validation for enclosed tuner modules operating at 70°C ambient.