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Features:
Single-Platform Multi-Band TDD Coverage – One unified hardware design supports B34 (2.0GHz), B39 (1.9GHz), B40 (2.3GHz), and B41 (2.6GHz), enabling flexible frequency switching for diverse 4G TDD network deployments.
Pre-Distortion Enabled Efficiency – With built-in digital pre-distortion (DPD) support, the module consumes just ≤2.5A at 28V while delivering 43±1dBm output, achieving an excellent linearity-to-power ratio for small-cell and repeater applications.
Low EVM for High-Order Modulation – Maintains ≤5% EVM at 10.0dB peak-to-average ratio, ensuring clean signal amplification for 64QAM and higher-order LTE waveforms without compromising output power.
Balanced UL/DL Gain Architecture – Provides 53±2dB downlink gain for strong forward transmission and 25±2dB uplink gain with ≤3dB noise figure, preserving receiver sensitivity in marginal coverage areas.
RS485 Real-Time Telemetry – Full-duplex 19200 baud interface enables remote gain adjustment, module on/off control, and instant queries of forward power (accuracy ±1dB over >20dB dynamic range) and internal temperature (accuracy ±3℃).
Dual-Layer Fault Protection – Automatic over-power alert triggers at +2dB above rated maximum; hardware-based over-temperature shutdown at 85°C with auto-recovery at 65°C ensures failsafe operation without host intervention.
Flexible Downlink Conditioning – Integrated digital ATT provides ≥25dB gain adjustment range with ≤±1.5dB flatness across all attenuation steps, while ALC extends ≥10dB dynamic range to stabilize output against input variations.
Compact Triple-Connector Mechanical Design – Ultra-compact 130×90×22mm chassis with SMA (ANT) and MCX (PA IN/LNA OUT) connectors, enabling easy integration into space-constrained pole-mounted or indoor repeater enclosures.
CMOS 3.3V TDD Frame Synchronization – Separate logic inputs for TX/PA and RX/LNA switching (high=enable, low=disable) provide precise alignment with TDD slot timing, eliminating the need for external RF switches.
Turnkey Monitoring Software Suite – Bundled with PC-based testing software for rapid factory acceptance and field commissioning, allowing quick validation of gain settings, alarm thresholds, and forward power detection accuracy.
Technical Specification:
Product Name:
1. UZI-TDD-B34-2.0G-20W-139-28V
2. UZI-TDD-B39-1.9G-20W-139-28V
3. UZI-TDD-B40-2.3G-20W-139-28V
4. UZI-TDD-B41-20W-139-28V
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. DL:2496MHz -2690MHz | |
Max Gain: | 1. UL:25±2dB 2. DL:53±2dB |
Maximum Output Power: | 1. UL:Uncontrolled 2. DL:43±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: ≤2.5A |
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; |
Transceiver Wire Control Interface: | CMOS 3.3V |
Connectors | 3 connectors in total: ANT: SMA Connector; PA IN/LNA OUT: MCX Connector |
Mechanical Dimensions: | 130*90*22 |
Dimensional Drawing:
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.
Sample:
