2 ВЧ-усилитель мощности для модулятора HDMI-DVB-T, Настраиваемая частота и выходная мощность

2 ВЧ-усилитель мощности для модулятора HDMI-DVB-T, Настраиваемая частота и выходная мощность

2W RF Power Amplifier for HDMI to DVB-T Modulator, Пользовательская частота

This compact 2W RF power amplifier is designed to boost the RF signal output of HDMI to DVB-T modulators, ensuring stable transmission and extended coverage. With a wide frequency range of 530±15 MHz and customizable frequency and wattage options, it offers flexibility for various broadcast and test applications. The module is built with high gain, excellent linearity, and low group delay, making it ideal for professional digital TV transmission systems and wireless RF projects.

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Ключевая особенность

• Выходная мощность: ≥2W with P1dB at 10W

• Высокий коэффициент усиления: 43 ±1 dB with ≤1.0 dB ripple across 8 Полоса пропускания МГц

• Excellent Signal Quality: IMD3 ≤ -35 dBc @ 2W, group delay <1 мкс

• Гибкий источник питания: Operates from +12V to +17V DC, ≤1.2A current consumption

• Durable Design: Компактный размер 81×48×14 mm, lightweight 89g

• Reliable Operation: Wide working temperature range from -20°C to +70℃

• Возможности подключения: SMA-75KFD RF connector, 75Ом импеданс

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Приложения

• HDMI to DVB-T RF modulators for TV broadcast

• RF laboratory testing and R&D projects

• Digital TV distribution in hotels, schools, and commercial centers

• Wireless image and video transmission systems

• Signal coverage extension in custom DVB-T projects

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Параметры & Кастомизация

• Custom Frequency Range – adjustable upon request

• Custom Output Power – available in different wattage levels beyond 2W

• Тип разъема – customizable according to system requirements

• ОЭМ/ОДМ – tailored solutions for integration into specific broadcast or wireless platforms

Custom Power Amplifier Specification Request Form

To ensure the amplifier meets the requirements of your DVB-T application, please provide the following technical details:

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1. Выходная мощность

• Nominal power (Средний / Пик): _______ W

• Required gain or adjustable gain range: _______ dB

• Linearity requirements (например, IMD3 ≤ -30 дБн): _______

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2. Frequency and Bandwidth

• Центральная частота: _______ MHz (± tolerance)

• Signal/channel bandwidth: _______ MHz

• Frequency response flatness across channel: _______ dB

• Harmonic and spurious requirements: _______ dBc

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3. Вход / Выход

• Input connector type and impedance: _______ (например, SMA 50Ω)

• Input power range: _______ dBm

• Output connector type and impedance: _______ (например, N-type 50Ω)

• Maximum VSWR: _______

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4. Modulation and Operation

• Тип модуляции: DVB-T COFDM (КФСК / 16-QAM / 64-QAM)

• Required MER / BER performance: _______ dB / _______

• Continuous or intermittent operation: _______

• Linearity and phase noise requirements: _______

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5. Power Supply and Control

• Supply voltage and current: _______ V / _______ A

• Remote on/off or gain control required? да / Нет

• Control interface type (if applicable): _______

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6. Thermal and Environmental

• Operating temperature range: _______ °C

• Cooling method: Natural / Forced air / Liquid cooling

• Environmental protection requirements (ИП): _______

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7. Dimensions and Installation

• Mounting type: Rack / Рабочий стол / Board-level module

• Dimensional constraints: _______ mm (L × W × H)

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8. Compliance and Testing

• Required standards or certifications: _______ (например, ETSI, CE, ФКС)

• Other performance specifications: _______

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Примечание:
Digital DVB-T modulation is highly sensitive to линейность, flatness, and phase noise. Please provide as much detail as possible to ensure full compatibility.

Вопросы-Ответы

вопрос: Can you provide a 470–680 MHz broadband UHF power amplifier for DVB-T2/COFDM with +37 dBm output and 50 dB gain?
А: A single amplifier covering the full 470–680 MHz band (210 Полоса пропускания МГц) is not feasible due to linearity and gain-flatness limitations for COFDM. Однако, we can offer customized solutions for narrower bands:

• 470–520 MHz (50 Полоса пропускания МГц)

• 630–680 MHz (50 Полоса пропускания МГц)

Each band supports:

• Выходная мощность: +37 дБм (≈5 W)

• Прирост: ~50 dB

• High linearity for DVB-T/T2 COFDM signals

If you require a specific sub-band, we can provide a tailored specification.

вопрос: My modulator output is low. Do I need a driver to reach 2 Выходная мощность Вт, or can your amplifier work directly with my modulator?
А: Our amplifier module can achieve 2 Выходная мощность Вт directly with a modulator output as low as -12.75 дБм. No extra driver module is required.

Кончик: The amplifier input originally has a 15 dB attenuation. To match your modulator, simply reduce the input attenuation accordingly, and the amplifier will reach full power.