Agilent Calibration E6835ATD-SCDMA cellular phone uses - Examination, TD-SCDMA, mobile phone devices - stereo - Company

1, Introduction E6601A Agilent's next-generation tester platform, designed to Mobile Makers to give low-price calibration program (see Figure 1). It utilizes open- Windows @ XP Platform, customers can Tester Directly on the development, download and run the test program, considerable savings in space and price of standard test systems its designed specifically for high-speed measurement of a new measurement architecture and business-major accuracy, repeatability and measurement integrity, can drastically minimize the telephone price of test its versatile licensing to enable customers to purchase the most suited to their manufacturing needs of the licensing selections to properly minimize gear costs, optimize resource utilization. Figure 1, a new generation of tester platforms Agilent E6601A 2, mobile telephone RF calibration Phone RF calibration contain Transmitter Energy calibration, calibration and voltage-controlled acquire receiver Oscillator (VCO) / frequency calibrat ion. (1) transmitter energy calibration is divided into diverse energy levels on the similar frequency calibration and a energy level on the calibration of two diverse frequencies, the actual operation, the command cell telephone in a particular frequency and energy levels up on launch signal, measured by the tester actual telephone transmit energy, to ensure mobile phones operate in the flat band transmission energy and the degree of linearity within the dynamic range to meet the design needs. (2) Receiver acquire calibration needs tester generated at diverse energy levels, frequency of emission requirements provisions of the signal, telephone signal strength measurements received RS SI, to calibrate the acquire of mobile telephone to obtain access. (three) VCO / frequency calibration can have two techniques: Approach 1 is to launch the designated tester frequency signals, cell telephone signal to adjust the typical of its VCO Approach Two is to make the telephone not with the Network Synchronous firing beneath the conditions specified frequency signal tester measured the frequency error to adjust the phone's VCO. three, E6835A TD-SCDMA Mobile Calibration Application Following the 2006 Agilent E6601A platform launched in GSM/GPRS/EDGE/W- CD MA / HSDPA / Cdma2000/1xEV-DO calibration applications, the Agilent has introduced the 2007 E6835ATD-S CDMA mobile telephone Calibration applications, the following will E6835ATD-SCDMA mobile phones to make a short calibration applications. (1) numerous versatile signal supply function: E6835A TD-SCDMA can produce modulated signals, continuous wave (CW), amplitude modulation (AM), frequency modulation (FM) and bilateral band suppression carrier signal (DSB -SC), for diverse Chip Calibration of diverse mobile telephone producers needs a strong guarantee. (2) total measurement functions: E6835A gives a wide variety of test requirements compliance measurement functions such as channel energy (with the RRC Filt er Energy testing and RRC filter without having energy test), adjacent channel energy ratio (ACLR), spectrum spurious (SEM), EVM, frequency error, peak code domain energy, spectrum evaluation (see Figure 2). Figure 2, the total measurement (three) In addition, E6835A presents rapidly mobile transmitter calibration program?? Dynamic energy calibration. It can total the similar frequency on a diverse energy level calibration on the transmitter output energy, which greatly improved the efficiency of cell telephone transmitter calibration (see Figure three). Figure three dynamic energy calibration