Advantest U3841 – Cross Domain Analyzer

The Advantest U3641 Cross Domain Analyzer is a versatile instrument engineered for detailed signal analysis across frequency and time domains. It integrates the functionalities of a spectrum analyzer, a network analyzer, and an oscilloscope into a single, high-performance unit, making it suitable for comprehensive characterization of electronic components and systems.

### Technical Specifications

**Frequency Range:**
* **U3841:** 9 kHz to 3 GHz
* **Pre-Amplifier:** 10 MHz to 3 GHz

**Analysis Bandwidth:**
* Maximum analysis bandwidth: 40 MHz
* Capture bandwidth (CBW): 100 Hz to 30 MHz, with 1-3 steps, up to 40 MHz

**Sampling Rate:**
* 500 Hz (CBW 100 Hz) to 65 MHz (CBW 40 MHz) (IQ pair data per sample)

**Time Resolution:**
* 15.4 ns (CBW 40 MHz) to 2 ms (CBW 100 Hz)

**Amplitude Characteristics:**
* **Measurement Range:** Displayed average noise level to +30 dBm
* **Maximum Safe Input Level:**
* Pre-Amplifier OFF: +30 dBm (attenuator ≥10 dB)
* Pre-Amplifier ON: +13 dBm (attenuator 0 dB)
* **U3841 DC Max Input:** ±50 VDC
* **Input Attenuator Range:** 0 to 50 dB (in 10 dB steps)
* **1 dB Gain Compression:**
* Pre-Amplifier OFF: >-5 dBm (Frequency ≥20 MHz)
* Pre-Amplifier ON: >-25 dBm (Frequency ≥20 MHz)
* **Third Order Intermodulation Distortion:** <-60 dBc (Pre-Amp OFF, mixer input level -20 dBm, frequency >10 MHz, 2-signal separation >200 kHz)
* **Image/Multiple/Out-of-band Response:** <-60 dBc (Mixer input level -20 dBm) * **Residual Response:** <-80 dBm (Frequency >10 MHz, Pre-Amp OFF)

**Displayed Average Noise Level (DANL):**
* Frequency ≥10 MHz, reference level <-45 dBm, at RBW 100 Hz * **U3841:** * Pre-Amp OFF: -123 dBm + 2f (GHz) dB (f < 2.5 GHz); -123 dBm + 2.5f (GHz) dB (f ≥ 2.5 GHz) * Pre-Amp ON: -138 dBm + 3f (GHz) dB**Amplitude Accuracy:** * **Calibration Signal:** 20 MHz, -20 dBm * **Level Measurement Accuracy:** * ±1.0 dB (9 kHz to 3 GHz) * ±0.8 dB (10 MHz to 3 GHz)**Inter-channel Balance:** * Amplitude: ±2.0 dB * Phase: ±15 deg (At 1 GHz, CBW 100 kHz/ms, mixer input of -30 dBm, pre-amp off, CBW at center and after calibration)**VSWR (RF Input):** * <1.5 : 1**Resolution Bandwidth (RBW):** * Range: 100 Hz to 3 MHz (Frequency Sweep, 1-3 steps) * Range: 1 Hz to 400 kHz (FFT, CBW/100)**Video Bandwidth (VBW):** * Range: 10 Hz to 3 MHz (1-3 steps)**Sweep Time:** * Setting Range: 20 ms to 1000 s (spectrum mode) * Setting Range: 50 µs to 1000 s (zero span)**Detection Modes:** * Normal, Positive peak, Negative peak, Sample, RMS, and Average### Electrical**AC Power Input:** * Automatic switching to 100 VAC or 220 VAC * 100 VAC: 100-120 V, 50/60 Hz * 200 VAC: 220-240 V, 50/60 Hz**Power Consumption:** * 150 VA or less### Interfaces**RF Input Connector:** * N-type female**Calibration Signal Output Connector:** * N-type female**Front-Panel Interface:** * **USB:** USB 1.1 * Supports USB memory and keyboard connection for data organization, storage, and file editing. * **Audio Output:** Small monophonic jack**Rear-Panel Interface Specifications:** * **GPIB:** IEEE-488 bus connector * **Video Output:** VGA (D-sub15 pin female) * **LAN:** RJ45 type, 10/100 base-T**IF Output:** * Output from CH1 only * Connector: BNC female * Impedance: 50 Ω (nominal) * Frequency: 21.4 MHz, 97.5 MHz (selectable)### Physical**External Dimensions:** * Approx. 308 x 175 x 339 mm (W x H x D) (not including protruding parts) * Approx. 337 x 190 x 437 mm (W x H x D) (including handle and feet)**Mass:** * 10 kg or less (excluding options)### Environmental**Operating Environment Range:** * Ambient Temperature: 0 to +50°C * Humidity: RH 85% or less (no condensation)**Storage Environment Range:** * Temperature: -20 to +60°C * Humidity: RH 85% or less (no condensation)### Compatibility and Options* **Cross Domain Analyzer Series:** U3800 Series includes U3841 (3 GHz), U3851 (8 GHz), and U3872 (43 GHz) * **Optional Accessories:** * High-stability frequency reference source (OPT.20) * EMC filter (OPT.28) * Tracking generator (3 GHz: OPT.76, 6 GHz: OPT.77)Why Choose Aumictech for Advantest U3641 – Cross Domain Analyzer? At Aumictech, we specialize in supplying high-end RF and microwave test equipment. Whether you need precise signal analysis for R&D, reliable performance for manufacturing test, or robust solutions for field applications, our team ensures the Advantest U3641 Cross Domain Analyzer delivers maximum performance for your application.