The TSG4100A Series RF Vector Signal Generator offers mid-range perbbbbance and up to 200 MHz modulation bandbbbbb at an entry-level RF signal generator price. They use a new technique to provide spurious free outputs with low phase noise (-113 dBc/Hz at 20 kHz offset from 1 GHz carrier) and extraordinary frequency resolution (1 μHz at any frequency). The TSG4100A Series comes standard with analog modulation. Convenient, in-field software upgrades allow for easy transition from analog to more advanced vector and digital modulation capabilities, providing the most flexible configuration and best CAPEX protection. These instruments complement other leading mid-range RF test solutions from Tektronix, such as the USB-based RSA306 Spectrum Analyzer and MDO4000B and MDO3000 Mixed Domain Oscilloscopes.
The TSG4100A Series instruments use an ovenized SC-cut oscillator (TSG410xA-M00 or E1 models) time-base, providing a 100 X improvement in stability (and a 100 X reduction in the in-close phase noise) compared to instruments that use a TCXO time-base.
Key features
- Analog and vector/digital signal generation capabilities
- Dual baseband ARB generators
- Analog modulation standard
- Soft key upgrade to vector/digital modulation at very low cost
- Digital modulation applications for GSM, EDGE, W-CDMA, APCO-25, DECT, NADC, PDC, and
- USB, GPIB, RS-232, and LAN interfaces
- 12 pounds (5.6 kg)
- 2U high and half standard rack bbbbb
Key perbbbbance specifications
- True DC to 2 GHz, 4 GHz or 6 GHz to support both analog and vector/digital signal generation
- Typical ≤±0.30 dB amplitude accuracy (0 dBm CW signal at 22 ºC) from 10 MHz to 6 GHz
- I/Q modulation bbbbbs (400 MHz RF bandbbbbb)
- ASK, FSK, MSK, PSK, QAM, VSB, and custom I/Q
Analog modulation
The Tektronix TSG4100A Series RF Vector Signal Generators offer a wide variety of modulation capabilities. Modes include amplitude modulation (AM), frequency modulation (FM), phase modulation (ΦM), and pulse modulation. There is an internal modulation source as well as an external modulation bbbbb. The internal modulation source produces sine, ramp, saw, square, and noise wavebbbbs. An external modulation signal may be applied to the rear panel modulation bbbbb. The internal modulation generator is available as an output on the rear panel.
Vector modulation
The TSG4100A Series builds on this perbbbbance by adding full support for vector signal modulation on RF carriers between 400 MHz and 6.0 GHz. It features a dual arbitrary wavebbbb generator operating at 125 MHz for baseband signal generation. The generator has built-in support for the most common vector modulation schemes: ASK, QPSK, DQPSK, π/4 DQPSK, 8PSK, FSK, CPM, QAM (4 to 256), 8VSB, and 16VSB. It also includes built-in support for all the standard pulse shaping filters used in digital communications: raised cosine, root-raised cosine, Gaussian, rectangular, triangular, and more. Lastly, it provides direct support for the controlled injection of additive white Gaussian noise (AWGN) into the signal path.
Internal baseband generators
Using a novel architecture for I/Q modulation, the TSG4100A Series provides quick, user-friendly wavebbbb generation. The baseband generator supports the playback of pure digital data. It automatically maps digital symbols into a selected I/Q consbbblation at symbol rates of up to 6 MHz and passes the result through the selected pulse shaping filter to generate a final wavebbbb updated in real time at 125 MHz. This baseband signal is then modulated onto an RF carrier using standard IQ modulation techniques.
Digital communications protocols (GSM, GSM EDGE, W-CDMA, APCO-25, DECT, NADC, PDC, and ) quickly configure the signal generator to the correct modulation type, symbol data rates, TDMA duty cycles, and digital wavebbbb filters. The preset protocols also configure the rear-panel TDMA, START of FRAME, and SYMBOL CLOCK digital outputs. The baseband generators can be configured for these protocols without the use of external computers or third party software.
The I/Q wavebbbbs are computed in real time. Symbols are mapped to consbbblations, digitally filtered, and up-sampled to 125 Msps to drive the I/Q modulator via dual 14-bit DACs. The symbols can be a fixed pattern, PRBS data from an internal source, or come from a downloaded user list of up to 16 Mbits.
The consbbblation mapping can be modified by the user. Digital filters include raised cosine, root raised cosine, Gaussian, rectangular, linear, sinc, and user-defined FIR.
External IQ modulation
The rear-panel BNC I/Q modulation bbbbbs and outputs enable arbitrary vector modulation via an external source. The external signal path supports maximally 400 MHz of RF bandbbbbb with a full scale range of ±0.5 V and a 50 Ω bbbbb impedance.
Power vs. frequency
All TSG4100A Series models have cascaded stages of amplifiers and digital attenuators to drive the RF output. Five stages can provide up to +25 dB of gain to -130 dB of attenuation in 156 digitally controlled steps. During factory calibration, the output power is measured at 32 frequencies per octave for each of the 156 attenuator steps to populate a memory matrix with about 40,000 elements. When set to a particular frequency and power, the instrument interpolates between these matrix elements to determine the best attenuator setting. An analog attenuator is used to provide 0.01 dB resolution between matrix elements and to compensate for residual thermal effects.
OCXO time-base
These instruments offer an oven-controlled crystal oscillator (OCXO) time-base. The time-base uses a third-overtone stress-compensated 10 MHz resonator in a thermostatically controlled oven. The time-base provides very low phase noise and very low aging.
Easy remote communications
Remote operation is supported with RS-232, LAN, and GPIB interfaces. All instrument functions can be controlled and read over any of the interfaces. Up to nine instrument configurations can be saved in non-volatile memory.
特点 |
优势 |
内部 IQ 带宽高达 6MHz | 输出基本数字射频信号和窄带宽的通信信号。 |
外部 IQ 带宽高达 200MHz | 无线/通信信号超宽带宽 |
使用软件轻松升级到内部矢量调制源 | 适合模拟和矢量信号发生器的应用,价格极低 |
OCXO 时基提供 <±0.002ppm 温度稳定性以及 <±0.05ppm 时效稳定性 | R&D 应用程序的优秀时效和稳定性的性能 |
输出频率覆盖范围始于真实直流 |
消除添加直流/低频应用程序的仪器的需求
|
- 公司类型私营独资企业
- 经营模式代理商-私营独资企业
- 联系人陈维
- 联系手机18665902878
- 联系固话0755-89399391
- 公司地址深圳市龙华区龙华街道油松社区油松路兴龙富创客园大厦4层418
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