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Multi-band TDD 50W PA platform – Covers B34 (2.0GHz), B39 (1.9GHz), B40 (2.3GHz), and B41 (2.6GHz) with 47±1dBm downlink output, supporting 4G TDD band aggregation.
High downlink gain with integrated LNA – Provides 53±2dB downlink gain and 25±2dB uplink gain, with ≤3dB uplink noise figure for improved receiver sensitivity in TDD repeaters.
Downlink ATT and ALC control – Features ≥25dB gain adjustment range and ≥10dB ALC range on downlink, with gain flatness ≤±1.5dB across 25dB attenuation steps.
RS485 telemetry at 19200 baud – Supports remote gain setting, module on/off control, and real-time query of forward power (±1dB accuracy over >20dB range), temperature (±3°C from -25°C to +85°C), and operational status.
Active fault reporting with dual alarms – Automatically reports over-power (exceeds rated max by +2dB) and over-temperature (≥85°C) conditions; shuts down at 85°C and auto-recovers at 65°C.
CMOS 3.3V TDD frame control – Separate logic inputs for TX/PA (downlink) and RX/LNA (uplink) switching; high level enables, low level disables, aligning with TDD slot timing.
Low EVM for linear modulation – Achieves ≤5% EVM at 10.0dB peak-to-average ratio, supporting clean amplification of 64QAM and higher-order 4G/LTE signals.
Compact 150×100×23mm chassis – Space-saving mechanical design suitable for integration into remote radio units, small-cell nodes, and TDD repeater systems.
Wide environmental tolerance – Operates from -40°C to +55°C ambient, with over-temperature protection handling extreme thermal conditions without external supervision.
Complete module testing software included – Bundled with RS485-based testing software for quick validation of gain settings, alarm thresholds, forward power detection, and module status during integration.
Product Name:
1. UZI-TDD-B34-2.0G-50W-1510-28V
2. UZI-TDD-B39-1.9G-50W-1510-28V
3. UZI-TDD-B40-2.3G-50W-1510-28V
4. UZI-TDD-B41-50W-1510-28V
Items: | Uplink (UL) & Downlink (UL) Specifications: |
Frequency Range: | 1. B34: a. UL:2010MHz -2025MHz b. DL:2010MHz -2025MHz 2. B39 a. UL:1880MHz -1920MHz b. DL:1880MHz -1920MHz 3. B40 a. UL:2300MHz -2400MHz b. DL:2300MHz -2400MHz 4. B41 a. UL:2496MHz -2690MHz b. DL2496MHz -2690MHz |
Max Gain: | 1. UL:25±2dB 2. DL:53±2dB |
Maximum Output Power: | 1. UL:Uncontrolled 2. DL:47±1dBm |
Maximum Input Level: | 1. UL:NONE 2. DL:+10dBm |
Gain Adjustment Range: | 1. UL:NONE 2. DL:≥25dB |
ALC Range: | 1. UL:NONE 2. DL:≥10dB |
Gain Flatness: | 1. UL:NONE 2. DL a. ATT10dB： ≤±1dB b. ATT20dB： ≤±1dB c. ATT25dB： ≤±1.5dB |
In-Band Ripple: | ≤2.5dB |
Noise Figure: | 1. UL:≤3dB 2. DL:NONE |
Tx-Rx Isolation: | ≥55dBc |
EVM: | ≤5% (Peak-to-Average Power Ratio 10.0dB) |
VSWR: | ≤1.4 (Test condition: power on for testing after turning off the downlink power amplifier.) |
Operating Voltage: | 28V |
Operating Current: | With pre-distortion: ≤5.5A |
Baud Rate: | 19200 |
Working Temperature: | -40~+55℃ |
Over-Temperature Protection: | Alarm and shutdown at +85℃, resume operation at 65℃ |
Monitoring Functions: | 1. For the wiring diagram of the monitoring port, refer to the outline dimension drawing; RS485 interface communication a. Settings: switch, gain; b. Query: module status (including power amplifier status, over-power alarm, over-temperature alarm), power amplifier temperature, power amplifier ATT value, detected forward power; c. Over-power alarm: alarm when the power exceeds the maximum output power by +2dB; d. Over-temperature alarm: recommended threshold is +85℃; alarm is triggered when the detected temperature exceeds +85℃, and the power amplifier is turned off simultaneously, then turned on at +65℃; e. Power amplifier temperature detection: the detection range shall include but not be limited to -25℃~+85℃, with a detection accuracy of ±3℃; f. Forward power detection: the detection range shall be greater than 20dB, with a detection accuracy of less than ±1dB; |
1.RX:LNA (uplink) switch, CMOS 3.3V high level turns it on, low level turns it off.
2.TX:PA (downlink) switch, CMOS 3.3V high level turns it on, low level turns it off.
