UZI-TDD N77 3800-4200M UL/DL PA 4W Power Amplifier

1. Adopts 5G TDD N77 band (3800-4200MHz) design with GaN material and 48V±5% (45.6-50.4V) power supply, integrated cavity filter and dedicated DPD coupling port (FB port), supporting 100M source bandwidth and 10-100MHz carrier bandwidth for wideband 5G signal transmission.
2. Realizes high-performance UL/DL dual-channel work, with DL output power ALC-stabilized at 42.5dBm (tested at 35.8dBm), UL P1dB at 10-17dBm, Tx-Rx isolation ≥55dBc and TDD switching time ≤2.5μs, meeting customer’s fast-switching special requirements.
3. Complies with strict RF performance standards: ACPR tested and qualified for both 20M/100M source bandwidth (20M: ≤-38dBc without DPD/≤-50dBc with DPD; 100M: ≤-36dBc without DPD/≤-50dBc with DPD), EVM ≤3.5% (@PAR 10dB), and in-band ripple ≤2.5dB for stable and high-quality signal output.
4. Equipped with comprehensive RS485 monitoring and multi-protection functions, including over-power/over-temperature/VSWR alarm, precise detection of power/current/voltage/temperature, over-temperature auto-shutdown at +85℃ (recovery at 65℃), and strict VSWR detection and protection to avoid instrument damage.
5. Features excellent out-of-band performance with high suppression capability (up to ≥74dBc in 6000-7200MHz band) and compliant spurious emissions for ANT/LNA_OUT ports; compact size (120×105×36.3mm) with 4 connectors (ANT-SMA, others-IPEX), CMOS3.3V Tx-Rx control interface, and

Model:
1. UZI-TDD-N77-3800-4200M-4W-120105-48VGaN-BPF-FB
Brand:
Uziwave

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TDD Power Amplifier GaN Power Amplifier Power Amplifier

Product Description

dopts 5G TDD N77 band (3800-4200MHz) design with GaN material and 48V±5% (45.6-50.4V) power supply, integrated cavity filter and dedicated DPD coupling port (FB port), supporting 100M source bandwidth and 10-100MHz carrier bandwidth for wideband 5G signal transmission.
Realizes high-performance UL/DL dual-channel work, with DL output power ALC-stabilized at 42.5dBm (tested at 35.8dBm), UL P1dB at 10-17dBm, Tx-Rx isolation ≥55dBc and TDD switching time ≤2.5μs, meeting customer’s fast-switching special requirements.
Complies with strict RF performance standards: ACPR tested and qualified for both 20M/100M source bandwidth (20M: ≤-38dBc without DPD/≤-50dBc with DPD; 100M: ≤-36dBc without DPD/≤-50dBc with DPD), EVM ≤3.5% (@PAR 10dB), and in-band ripple ≤2.5dB for stable and high-quality signal output.
Equipped with comprehensive RS485 monitoring and multi-protection functions, including over-power/over-temperature/VSWR alarm, precise detection of power/current/voltage/temperature, over-temperature auto-shutdown at +85℃ (recovery at 65℃), and strict VSWR detection and protection to avoid instrument damage.
Features excellent out-of-band performance with high suppression capability (up to ≥74dBc in 6000-7200MHz band) and compliant spurious emissions for ANT/LNA_OUT ports; compact size (120×105×36.3mm) with 4 connectors (ANT-SMA, others-IPEX), CMOS3.3V Tx-Rx control interface, and wide working temperature range (-40~+55℃) for easy integration and industrial-grade reliability.

Technical Specification:

Product Name:

UZI-TDD-N77-3800-4200M-4W-120105-48VGaN-BPF-FB

Note：

5G standard compliant firmware for power amplifier

Source signal bandwidth: 100 MHz

48V power supply, Gallium Nitride (GaN) technology

Equipped with DPD coupling port (FB port)

Integrated cavity filter with the power amplifier

Items:	Uplink (UL) & Downlink (UL) Specifications:
Frequency Range:	UL:3800–4200 MHz DL:3800–4200 MHz
Carrier Bandwidth:	UL:10–100 MHz DL:20-100MHz
Max Gain:	UL:18±2dB DL:40±2dB
Maximum Output Power:	ALC regulated at 42.5 dBm (with cavity filter) Test to be performed at 35.8 dBm
Maximum Input Level:	UL:+10dBm DL:+10dBm
Gain Adjustment Range:	UL:NONE DL:≥25dB
ALC Range:	UL:NONE DL:≥10dB
Gain Flatness:	UL:NONE DL ATT10dB： ≤±1dB ATT20dB： ≤±1dB ATT25dB： ≤±1.5dB
In-Band Ripple:	UL:≤2.5dB DL:≤2.5dB
Noise Figure:	UL:≤5dB DL:NONE
Transmit-Receive Leakage Power:	≤−18 dBm (@ Pout= 35.8 dBm)
Tx-Rx Isolation:	Ant Pout 35.8 dBm (with load) - RX out ≥55 dBc Mandatory test: ANT open, PA IN input -30 dBm, LNA OUT ≤−45 dBm
TDD Switch Switching Time:	≤2.5μs (PA to LNA), ≤2.5μs (LNA to PA)
ACPR(Test required for 20M/100M source bandwidth, all results must be qualified)	20M bandwidth: ≤-38dBc (without DPD), ≤-50dBc (with DPD) 100M bandwidth: ≤-36dBc (without DPD), ≤-50dBc (with DPD)
EVM:	≤3.5% (Peak-to-Average Power Ratio 10.0dB)
VSWR:	≤2.0 (Uplink), ≤1.5 (Downlink)(Test with power on after turning off the downlink PA. Check the downlink PA is off before testing to avoid instrument damage.)
Feedback (FB) Port Index:	Coupling Factor: 35.8±2 dB VSWR: ≤1.5 Output Power: 0.5±2 dBm
Thermistor Resistance:	NTC 100kΩ
Out-of-band Spurious (Downlink):	9 kHz～150 kHz: ≤−36 dBm/1 kHz 150 kHz～30 MHz: ≤−36 dBm/10 kHz 30 MHz～1 GHz: ≤−36 dBm/100 kHz 1 GHz～3.76 GHz: ≤−34 dBm/1 MHz 4.24 GHz～12.75 GHz: ≤−34 dBm/1 MHz
Out-of-band Spurious (ANT Port):	30MHz～1GHz@≤-57dBm/100kHz 1GHz～12.75GHz@≤-47dBm/1MHz 12.75～24.5GHz@≤-47dBm/1MHz
Out-of-band Spurious (LNA_OUT Port):	30MHz～1GHz@≤-80dBm/100kHz 1GHz～6GHz@≤-70dBm/1MHz 6GHz～12.75GHz@≤-60dBm/1MHz 12.75GHz～24.5GHz@≤-60dBm/1MHz 3.3GHz～3.8GHz@≤-91dBm/100kHz
Out-of-band Rejection:	0～1000 MHz: 60 dBc 1000～2300 MHz: 60 dBc 2300～3300 MHz: 70 dBc 3300～3740 MHz: 55 dBc 3740～3760 MHz: 50 dBc 3760～3770 MHz: 30 dBc 3770～3780 MHz: 20 dBc 3780～3790 MHz: 6 dBc (-40℃~65℃) 4210～4220 MHz: 6 dBc (-40℃~65℃) 4220～4230 MHz: 20 dBc 4230～4240 MHz: 30 dBc 4240～4260 MHz: 50 dBc 4260～4400 MHz: 55 dBc 4400～6000 MHz: 68 dBc 6000～7200 MHz: 74 dBc 7.2～10 GHz: 64 dBc 10～15 GHz: 50 dBc
Operating Voltage:	48V±5% (45.6-50.4V)
Operating Current:	≤0.75A (Strictly no exceeding)
Baud Rate:	19200
Working Temperature:	-40～+55℃
Over-Temperature Protection:	Alarm and shutdown at +85℃, resume operation at 65℃
Transmit-Receive Wire Control Interface：	CMOS3.3V
Connectors：	4 connectors in total (including FB coupling port): ANT port with SMA connector, others with IPEX connectors
Mechanical Dimensions:	120×105×36.3 mm
Monitoring Functions:	Configuration: Power on/off control, gain adjustment Query: Module status (including PA status, over-power alarm, over-temperature alarm), PA temperature, VSWR value, PA ATT value, detected forward power Over-power Alarm: Alarm triggered when output power exceeds the maximum output power by +2 dB Over-temperature Alarm: Recommended threshold at +85℃; alarm and PA shutdown when detected temperature exceeds +85℃, auto-recovery at +65℃ PA Temperature Detection: Detection range covers at least -25℃～+85℃, detection accuracy ±3℃ Forward Power Detection (45dBm-20dBm): Detection range >20 dB, detection accuracy <±1 dB Reverse Power Detection (45dBm-20dBm): Detection range >25 dB, detection accuracy <±1.5 dB Voltage Detection Accuracy: ≤±1V (measured under +48V power supply) Current Detection Accuracy: ≤±200mA (Transmit mode, no input signal); ≤±200mA (Transmit mode, Pout= 37.5dBm) Temperature Detection: ±3℃ (Measure the pin-to-ground resistance with a multimeter, the measured resistance shall be within 50K-150K range) VSWR Value Detection: When PA output power ≥20dBm with normal cable connection, the software shall detect the actual VSWR value VSWR Alarm: When PA output power ≥20dBm and ANT port is open, the detected VSWR ≥3.0 and a VSWR alarm shall be generated simultaneously
Appearance Inspection:	Cover silk screen consistent with indicators Labels neat and correct PA cover and shell neat without scratches

Features:

Broadband MIMO Performance: Operates at 3550-3700MHz (N48) with 20-100MHz carrier bandwidth, supports MIMO 2T2R mode and dual uplink/downlink testing for flexible broadband application.
High Gain & Precise Power Control: Delivers 20±2dB uplink gain and 45±2dB downlink gain; downlink ALC controls 42.5dBm output with ≥25dB gain adjustment range and high adjustment accuracy for stable power output.
Superior RF Performance: Boasts NF ≤5dB (uplink), in-band ripple ≤1.8/2.0dB (UL/DL), Tx-Rx isolation ≥55dBc and EVM ≤3.5%; excellent ACPR performance for both 20M/100M bandwidth with/without DPD, meeting strict signal quality requirements.
Comprehensive Protection & Monitoring: Equipped with 85℃ overtemperature shutdown/65℃ recovery, over-power/VSWR alarm; RS485 monitoring interface supports real-time detection of power, temperature, voltage, current and VSWR with high measurement accuracy.
Stable Power Supply & Compact Design: Adopts 48V±5% (45.6-50.4V) power supply with ≤0.75A operating current; compact size 300*70*40mm, SMA (ANT) & IPEX connectors, and wide temperature adaptability (-40～+55℃) for easy deployment.

Technical Specification:

Product Name:

UZI-TDD-N48-3550-3700M-5W-30070QT-2T2R-48V-FB

Items:	Uplink (UL) & Downlink (UL) Specifications:
Frequency Range:	UL:3550MHz - 3700MHz DL:3550MHz - 3700MHz
Carrier Bandwidth:	UL:20-100MHz DL:20-100MHz
Max Gain:	UL:20±2dB DL:45±2dB
Maximum Output Power:	UL:Non-controlled (P1dB=+10dBm) DL:42.5dBm controlled by ALC (with cavity filter)Test at 37.5dBm
Maximum Input Level:	UL:+10dBm DL:+10dBm
Gain Adjustment Range:	UL:NONE DL:≥25dB
ALC Range:	UL:NONE DL:≥10dB
Gain Flatness:	UL:NONE DL ATT10dB： ≤±1dB ATT20dB： ≤±1dB ATT25dB： ≤±1.5dB
In-Band Ripple:	UL:≤2dB DL:≤2dB
Noise Figure:	UL:≤5dB DL:NONE
Transmit-Receive Leakage Power:	≤-18dBm (Pout= 37.5dBm)
Tx-Rx Isolation:	≥55dBc
Dual-channel Isolation:	CH1out-CH2out: ≥45dB (CH1out= 37.5dBm, CH2out≤-7.5dBm) CH2out-CH1out: ≥45dB (CH2out= 37.5dBm, CH1out≤-7.5dBm) RX1-RX2: ≥35dB (RX mode, Pin1=-30dBm, RX2≤-65dBm) RX2-RX1: ≥35dB (RX mode, Pin2=-30dBm, RX1≤-65dBm)
TDD Switch Switching Time:	≤2.5μs (PA to LNA), ≤2.5μs (LNA to PA)
ACPR(Test required for 20M/100M source bandwidth, all results must be qualified)	20M bandwidth: ≤-36dBc (without DPD), ≤-50dBc (with DPD) 100M bandwidth: ≤-33dBc (without DPD), ≤-50dBc (with DPD)
EVM:	≤3.5% (Peak-to-Average Power Ratio 10.0dB)
VSWR:	≤2.0 (Uplink), ≤1.5 (Downlink)(Test with power on after turning off the downlink PA. Check the downlink PA is off before testing to avoid instrument damage.)
Feedback (FB) Port Index:	Forward FB output power: 7±2dBm (Pout= 37.5dBm, load/ open circuit) Reverse FB output power: 5±2dBm (Pout= 37.5dBm, open circuit) Forward-reverse FB power difference: ≥20dB (Ant Pout with load), ≤2.5dB (Ant open circuit) Reverse FB power control: Adjustable range ±6dBFB coupling port VSWR: ≤1.5
Thermistor Resistance:	NTC 100kΩ
Out-of-band Spurious (Downlink):	9kHz～150kHz@≤-36dBm/1kHz 150kHz～30MHz@≤-36dBm/10kHz 30MHz～1GHz@≤-36dBm/100kHz 1GHz～3.26GHz@≤-43dBm/1MHz 3.84GHz～12.75GHz@≤-43dBm/1MHz
Out-of-band Spurious (ANT Port):	30MHz～1GHz@≤-57dBm/100kHz 1GHz～12.75GHz@≤-47dBm/1MHz 12.75～24.5GHz@≤-47dBm/1MHz
Out-of-band Spurious (LNA_OUT Port):	30MHz～1GHz@≤-80dBm/100kHz 1GHz～6GHz@≤-70dBm/1MHz 6GHz～12.75GHz@≤-60dBm/1MHz 12.75GHz～24.5GHz@≤-60dBm/1MHz 3.3GHz～3.8GHz@≤-91dBm/100kHz
Out-of-band Rejection:	1～1000MHz@≥65dB 1000～2800MHz@≥65dB 2800～3400MHz@≥55dB 3400～3500MHz@≥50dB 3500～3530MHz@≥50dB 3530～3540MHz@≥22dB(-40℃~65℃) 3710～3720MHz@≥22dB(-40℃~65℃) 3720～3750MHz@≥50dB 3750～3850MHz@≥50dB 3850～4400MHz@≥55dB 4400～6000MHz@≥74dB 6000～7200MHz@≥74dB 7.2～10GHz@≥64dB 10～15GHz@≥44dB
Operating Voltage:	48V±5% (45.6-50.4V)
Operating Current:	≤0.75A (Strictly no exceeding)
Baud Rate:	19200
Working Temperature:	-40～+55℃
Over-Temperature Protection:	Alarm and shutdown at +85℃, resume operation at 65℃
Transmit-Receive Wire Control Interface：	CMOS3.3V
Connectors：	SMA for ANT port, IPEX for the rest
Monitoring Functions:	RS485 interface communication: 1) Setting: Switch, gain 2) Query: Module status (including PA status, over-power alarm, overtemperature alarm), PA temperature, VSWR value, PA ATT value, detected forward power 3) Over-power alarm: Alarm when power exceeds max output power by +2dB 4) Overtemperature alarm: Recommended threshold +85℃; alarm and PA shutdown when detected temperature exceeds +85℃, resume at +65℃ 5) PA temperature detection: Range includes -25℃～+85℃ (not limited), accuracy ±3℃ 6) Forward power detection (45dBm-20dBm): Range ＞20dB, accuracy ＜±1dB 7) Reverse power detection (45dBm-20dBm): Range ＞25dB, accuracy ＜±1.5dB 8) Voltage detection accuracy: ≤±1V (measured at +48V power supply) 9) Current detection accuracy: ≤±200mA (transmit mode, no input); ≤±200mA (transmit mode, Pout= 37.5dBm) 10) Temperature detection: ±3℃ (Measure the resistance of this pin to ground with a multimeter, the value shall be 50K-150KΩ) 11) VSWR detection: Software can detect the actual VSWR value with normal cable connection when PA output power ≥20dBm 12) VSWR alarm: Detect VSWR ≥3.0 and trigger alarm when ANT port is open with PA output power ≥20dBm
Appearance Inspection:	Cover silk screen consistent with indicators Labels neat and correct PA cover and shell neat without scratches