DVB-T COFDM TX үчүн PAY PUETIOR AMPPLIFIER

Pay Power Amplifier

DVB-T COFDM TX үчүн PAY PUETIOR AMPPLIFIER

PATA кубаттуулугун күчөтүү модулу RF сигналынын кубаттуулугун күчөтүү натыйжасын ишке ашырат. Киргизүү чыңалуусу 12V, Cofdm модуляция кеңешине туташуу, Чыгуу күчү 1w чейин болушу мүмкүн (+30дБм)

Өзгөчөлүктөрү

1. Иштөө жыштыгы: 300Mhz ~ 360mhz (Көбүрөөк жыштык жөнгө салынат)
2. Киреше: 45дБ
3. Мушташуу: +33дБм (PAR = 9.9DB)
4. ACPR: < -36DBC
5. IP3: +49дБм
6. Ызы-чуу: 6дБ
7. Берүү чыңалуусу: 12V, 1w чыгаруу (+30дБм) бийликти жөнөтүү, Кубаттуулукту керектөө болжол менен 8.7w.
8. RF интерфейси: Sma Male Male Thread Hole

Мүнөздөмөсү

Электр өзгөчөлүктөрү @ + 25 ℃，Zs = zl = 50ω,VCC = 12V

Параметр	Бирдиги	Минималдуу	Типтүү	Максимум
Жыштык диапазону	МГц	300	Милдеттүү эмес	360
Кичинекей сигнал пайда	db		45.0
DB	db		+/-0.5
Output Power Pout @ pin = -15dbm	дБм		30.0
IP3 DBM +49	дБм		49.0
ACPR(Wcdma par = 9.9db)	DBC		-40
Тескери обочолонуу	дБ		-45
Ызы-чуу	дБ		4
Натыйжалуулук(Pout = + 39dbm @ 470mhz)	%		13.8
Vswr input			1.3:1
чыгаруу			2.0:1
DC электр менен жабдуу	V	7.4	10.0	12
Менен камсыз кылуу (Кессцент)	mA		300.0
12V автомобилдик AC адаптери менен иштетилиши мүмкүн			35.1MM X 18.1mm x 0.6mm

Кошумча жыштык

Pa1w330 Жыштык 300 ~ 360мz

Pa1w470 Frequency 450 ~ 500mhz

Pa1w550 Жыштык 544 ~ 564мХЗ

Pa1w600 Жыштык 580 ~ 620мХЗ

Pa1w700 Жыштык 680 ~ 720мХЗ

Абсолюттук максималдуу рейтинг

Параметр	Абсолюттук максимум
RF киргизүү кубаты	-5.0 дБм
Supply Voltage	+14V
Иштөө температурасы	-40℃ - + 65 ℃
Сактоо температурасы	-55℃ + 100 ℃

Обзор

The PA Power Amplifier module for COFDM transmitters is designed to deliver stable and efficient RF power amplification for digital video broadcasting and wireless video transmission applications. This high-performance amplifier provides an output power level up to +30 дБм (1W) under standard 12V operation, making it suitable for integration with COFDM modulation boards, UAV downlink systems, portable video transmitters, and other wireless communication platforms.

With its broad frequency coverage, adjustable design, and optimized linearity, the amplifier ensures reliable signal transmission with low noise and excellent spectral purity. It is particularly suitable for DVB-T COFDM transmission systems, where maintaining accurate modulation performance and minimal adjacent channel interference is critical.

The amplifier adopts a compact form factor (35.1 mm × 18.1 mm × 0.6 мм) with SMA RF interfaces, making it easy to integrate into existing transmitter hardware. It also incorporates robust protection features, ensuring stable operation across demanding environments, with an operating temperature range from -40℃ - + 65 ℃.

With selectable frequency bands ranging from 300 MHz up to 720 МГц, this amplifier can be tailored for multiple industry needs including public safety, UAV video downlinks, military reconnaissance, wireless monitoring, and industrial IoT Өтүнмөлөр. Optional versions are available with output powers of 1W, 2W, 5W, 10W, and 15W, offering a scalable solution for different deployment requirements.

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Негизги белгилер

• Wideband Frequency Operation:

  • Supports standard working frequency band 300–360 MHz, with multiple optional models covering 450–720 MHz.

  • Custom frequency adjustments available for specialized applications.

• High Gain and Output Power:

  • Typical small-signal gain of 45 дБ, ensuring strong amplification from low input drive levels.

  • Delivers up to +30 дБм (1W) RF output power under 12V input.

• Excellent Linearity and Spectral Purity:

  • Adjacent Channel Power Ratio (ACPR) < -36 DBC, ensuring clean signal transmission with minimal interference.

  • Third-Order Intercept Point (IP3) нын +49 дБм, supporting high linearity for COFDM modulation.

• Low Noise Performance:

  • Noise Figure of only 6 дБ, maintaining signal clarity.

• Optimized Efficiency:

  • Power consumption of approximately 8.7 W at 1W output, with efficiency ~13.8%.

• Compact & Robust Design:

  • Small form factor: 35.1 mm × 18.1 mm × 0.6 мм.

  • SMA RF interface for secure and low-loss connections.

  • Wide operating temperature range -40℃ - + 65 ℃, ensuring durability in harsh environments.

• Flexible Supply Range:

  • Operates on 7.4V to 12V DC supply.

  • Quiescent current: 300 mA typical.

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Detailed Specifications

Электр өзгөчөлүктөрү (at +25℃, Zs = zl = 50ω, Vcc = 12V)

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Абсолюттук максималдуу рейтинг

Эскертүү: Exceeding maximum ratings may result in permanent damage. Ensure proper heat dissipation and stable power supply regulation when operating at high output power levels.

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Optional Frequency Models

The amplifier can be provided in different frequency configurations depending on customer requirements:

• Pa1w330: 300–360 MHz

• Pa1w470: 450–500 MHz

• Pa1w550: 544–564 MHz

• Pa1w600: 580–620 MHz

• Pa1w700: 680–720 MHz

Customized frequency bands outside this range can be developed upon request.

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Колдонмолор

The COFDM PA Power Amplifier is widely applicable in advanced RF transmission systems where high linearity, stable output, and clean spectrum are essential. Typical applications include:

1. UAV Wireless Video Transmission

   • Enables long-range, low-latency video downlinks for drones.

   • Compatible with COFDM-based digital transmitters for reliable non-line-of-sight (Nlos) video delivery.

2. Public Security and Law Enforcement

   • Used in mobile surveillance units, body-worn transmitters, and tactical wireless systems.

   • Provides stable communication links in urban and rural deployment scenarios.

3. Broadcasting and Media Transmission

   • Supports DVB-T/COFDM standard, making it ideal for digital TV uplink and portable transmission setups.

4. Military and Defense Applications

   • Integrated into reconnaissance systems, remote-controlled unmanned vehicles (UGVs/USVs), and secure communication links.

5. Industrial IoT and Wireless Control

   • Provides robust long-range connectivity for industrial monitoring and remote control systems.

6. Emergency Response and Firefighting

   • Ensures reliable video and data transmission during rescue operations in complex terrains.

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Integration Guidelines

• Электр камсыздоо: Operate within 7.4–12 V for optimal performance. Ensure supply ripple is minimized to reduce spurious emissions.

• Cooling: Use proper heat sinking when operating at continuous high output power to maintain stability.

• RF интерфейси: Always terminate unused RF ports with 50Ω load to prevent reflections and damage.

• Модуляция: Best suited for COFDM modulation schemes such as DVB-T, with excellent performance in adjacent channel environments.

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Frequently Asked Questions (Көп берилүүчү суроолор)

Q1: What is the maximum output power of this amplifier?
A1: The standard module delivers +30 дБм (1W) of RF power under 12V supply. Higher power versions (2W, 5W, 10W, and 15W) are also available for extended range requirements.

Q2: Can this amplifier be used outside the specified frequency bands?
A2: Ооба, we offer custom frequency tuning upon request. Мисалы, if you require operation in 800–900 MHz or other bands, we can redesign the module accordingly.

Q3: Is this amplifier suitable for analog video transmission?
A3: While optimized for COFDM digital modulation, the amplifier can also be used for analog FM or AM-based video transmitters. Бирок, аткаруу (linearity, ACPR) is best utilized in digital systems.

Q4: How does the amplifier handle thermal dissipation?
A4: The module is designed for efficient heat transfer, but when operating at high output levels continuously, it is recommended to mount the module on a heat sink or within a ventilated enclosure.

Q5: Can I power the amplifier directly from a drone’s battery?
A5: Ооба, the amplifier supports a supply range of 7.4V to 12V, making it compatible with 2S–3S Li-ion/LiPo battery packs typically used in UAVs.

Q6: What kind of connectors are provided?
A6: The amplifier uses SMA male thread hole connectors for RF input and output, ensuring secure and low-loss connections.

Q7: Does the amplifier have built-in protection against overdrive?
A7: Input RF drive should not exceed -5 дБм (absolute max). It is strongly recommended to limit input power and avoid overdrive conditions. External protection circuits can be added if necessary.

Q8: What is the difference between the 1W, 2W, 5W, 10W, and 15W versions?
A8: The differences lie mainly in the power amplification stage. Higher power versions require additional thermal management and may have slightly larger form factors, but all share the same integration concept.

Q9: Can this amplifier work with OFDM-based communication systems other than DVB-T?
A9: Ооба. It is suitable for any OFDM/COFDM system, including LTE, custom digital video, and wireless data transmission schemes, provided the operating frequency is matched.

Q10: What industries are currently using this module?
A10: Our amplifiers are widely used in public security, firefighting, UAV video transmission, defense reconnaissance, Телерадиоберүү, and industrial IoT fields.

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Корутунду

The PA Power Amplifier COFDM module is a robust, high-performance RF amplifier optimized for modern digital wireless transmission needs. Its high linearity, low noise figure, wide frequency coverage, and optional scalable power outputs make it a versatile choice for UAVs, Телерадиоберүү, коргоо, and emergency communication systems.

Whether deployed in 1W lightweight UAV payloads or scaled up to 15W ground-based transmitters, the amplifier ensures reliable, натыйжалуу, and secure transmission of COFDM signals across diverse environments.