5725-5850MHz 50W Power Amplifier Integrated DDS Signal Generator

ZD-DPA-5725/5850M-50W

This high-efficiency 50W power amplifier operates across the 5.725-5.850GHz ISM band, making it ideal for industrial, scientific, and wireless communication applications. The integrated DDS (Direct Digital Synthesis) signal generator enables precise frequency control with ultra-low phase noise, supporting complex modulation schemes for advanced RF testing and signal simulation. Designed for reliability, the amplifier delivers stable 50W output with high conversion efficiency (≥40%) and features software-adjustable power levels (5-50W) for flexible operation. Its wideband ALC (Automatic Level Control) system ensures consistent output power (±0.5dB) even under varying load conditions. The robust thermal design includes an aluminum heat sink and temperature-controlled fan, maintaining safe operation during prolonged high-power use. Additional features include real-time monitoring (power, temperature, VSWR), RS485/RS232 control interfaces, and comprehensive protection against overvoltage, overcurrent, and RF overload (VSWR ≤1.5:1). Compact and lightweight, this 5.8GHz PA module is perfect for drone communications, radar systems, and RF jamming applications requiring high power density and frequency agility.

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With the rapid development of the society, the demanding for RF module with DDS generator is increasing. Our ZDTECH here glad to anounce a 50w power amplifier to deal with the issue.

Name				DDSsignal generator + power amplifier
Item				Parameter	Remark
working frequency				20-100/120-200/200-300/300-400/400-470/851-894/925-960/1570-1620/1805-1880/2110-2170/2400-2483/5200-5850MHz
power				50W
Operating Voltage				28V	24-36V
Conversion efficiency				≥42%	@50W
Adjustable output power				10W～50W	Software set power
ALC power adjustment range				≥20dB	Voltage Controlled Attenuation
gain				46±1.0dB
In-band fluctuation				≤2.5dB	peak
spurious emissions	In working band			≤-15dBm/1MHz	Measured when the center frequency plus CW signal to the maximum output power
	Out-of-band		9KHz～1GHz	No higher than normal noise floor clutter
			1G～ 12.75GHz
Maximum allowable input power				≥+10dBm	Lasts 1min without damage
Input VSWR				≤1.35	Add +28V, standard network output -10dBm
Output VSWR				≤1.35	No power, standard network output -10dBm
				≤1.35	Power On, Dual Directional Coupler Test
High and low temperature test		Working environment temperature (℃)		-10～+65℃	Low temperature can start, monitoring works normally
		Gain Stability		±1.5dB @-40℃～+65℃
		power stability		±1dB @-40℃～+65℃
Power Requirements				≥4.1A @+28Vdc	CW output50W
Power supply interface, communication interface RS485				7W2	Male, 1:485A; 2:485B
RF output connector				N-Female connector
with 3 LED lights				POWER: Power indication; RUN: Running indication; ALARM: Alarm indication;
physical dimension				700M-6G:15512526mm；20M-500M:15512535mm
weight
Appearance (how to use)				Signal source power amplifier integrated module (fixed on the radiator)

Monitoring Function		Description	Remark
Amplifier part setting parameters	Amplifier switch	Turn the amplifier on or off
	Alarm switch	Enable and disable the alarm function
	Downlink Power Control	The maximum output power of the power amplifier can be set, the adjustment range is ≥20dB, and the high, medium and low power levels can be set
	Amplifier over temperature alarm	The high temperature power amplifier shutdown threshold can be set, the power amplifier temperature exceeds 85 degrees, it will automatically shut down; 65 degrees will automatically restore
	Amplifier overpower alarm	The actual power value is 2dB higher than the downlink ALC start control threshold and close
	Power amplifier standing wave alarm	When the standing wave detection of the power amplifier is greater than 4, the power amplifier is automatically turned off
	Amplifier overcurrent alarm	When the detection current of the power amplifier exceeds 12A, the power amplifier is automatically turned off
	Amplifier under-power alarm	When the power amplifier detection power is less than 33dBm, an under-power alarm is displayed
	Amplifier overvoltage alarm	When the power amplifier voltage exceeds 32V, the power amplifier will automatically shut down
	Amplifier undervoltage alarm	Amplifier voltage
Amplifier part query parameters	Amplifier switch status	If the power amplifier is set to"OFF", the query should be the state of power amplifier off state; otherwise, it is the open power amplifier state
	Downstream output power level value	Detect power amplifier output power value, detection range (Pomax+2, Pomax-20)	Detection accuracy: Pout±1dB
	Downward standing wave ratio	The standing wave is normally 1.2, when the load is mismatched, the query value is 4.0
	temperature query	Detect the internal temperature of the module, detection range: -40℃～+100℃	Detection error: ±3℃
	ALC value query	The displayed value is equal to the actual set ALC value
	Voltage detection	Detection module working voltage
	Current Detection	Detection module operating current

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