Parts List/Tune Up Info

ManualsBrandsEpik One America ManualsCell Phones3G Smart Phone

Tune-Up Procedure

1 Purpose

This panel gives the possibility to manage the mobile in the transmit mode.

This window includes both:

- All the parameters (frequency band, RF channel, RF level to get the desire antenna

output power…) The user needs to make the mobile transmitting,

- All the parameters needed to define a transmit burst,

- All the compensation table to be able to align the mobile in production.

This Tx_commands user guide is describing:

- The characteristics of the transmit burst,

- All the parameters used in the transmit mode,

- The operating mode to make the mobile transmitting

Summary of content (9 pages)

PAGE 1
Tune-Up Procedure 1 Purpose This panel gives the possibility to manage the mobile in the transmit mode. This window includes both: - All the parameters (frequency band, RF channel, RF level to get the desire antenna output power…) The user needs to make the mobile transmitting, - All the parameters needed to define a transmit burst, - All the compensation table to be able to align the mobile in production.
PAGE 2
General description 2.1 Characteristics of the transmit burst The power levels and the shape of a transmit burst are controlled by the power amplifier controller integrated in the main chip,The burst is generated by a 10-bit DAC from the main chip as shown below: The ramping shape is referenced with the rising edge of Tx-ON (from the Baseband).
PAGE 3
2.2 GPRS Data Transfer GSM mobile phones use a Time Division Multiple Access (TDMA) scheme to transmit data. The TDMA format contains eight time slots. The handset power amplifier typically transmits in one or two or three or four of these up time slots. To prevent interference between cell phones, the time mask profile as specified is very restricted.
PAGE 4
3.2 Parameters used to define the temporal position of the burst 3.2.1 Optimum position of the burst This parameter is TRU (or △TRU_P) on the panel, in the Optimal Burst. This is the burst starting time correction, which is optimised for each power control level. (Note that _P means that the parameter is a power compensation parameter). 3.2.2 Optimum length of the burst This parameter is TRD (or △TRD_P) on the panel, in the Optimal Burst.
PAGE 5
4 Operating mode 4.1 How to transmit a Tch burst (Random data), in PCS1900 mode, at power control level max: PCS 1900: Connect the mobile with special software, Configuration of the common parameters: - Band: PCS1900, - Channel: 661, - RF level: 0, - Burst select: Mode Tch Random Press STAR command to start continuous TX, you can check the burst with CMU200 or Agilent 8960; it must fit the curve below. The request of the Power vs. Time. 4.2 How to stop Tx measurements: Press STOP command to stop the TX.
PAGE 6
5 Purpose This panel gives the description of the Frequency plan.
PAGE 7
Reference clock XO module which is used to provide 26MHz reference clock to RF internal circuitries and three 26MHz reference clocks to peripheral.
PAGE 8
7 Static frequency error and range ● Factors of static frequency error: manufacturing frequency tolerance in crystal at room temperature, aging, ● Static frequency error is compensated for using 6bits programming capacitor array (CAP ID). ● The static frequency range of capacitor array ( CAP ID=0 to63) must larger than 34ppm( +-17ppm).
PAGE 9
Maximum Target Output Power Max Target Power(dBm) Channel Mode/Band Low Middle High GSM 850 GPRS 1 TX Slot 32.0 32.0 32.0 32.0 32.0 32.0 GPRS 2 TX Slot 30.0 30.0 30.0 GPRS 3 TX Slot GPRS 4 TX Slot 28.0 25.5 28.0 25.5 28.0 25.5 PCS 1900 GPRS 1 TX Slot 29.0 29.5 29.0 29.5 29.0 29.5 GPRS 2 TX Slot 27.5 27.5 27.5 GPRS 3 TX Slot GPRS 4 TX Slot 25.5 23.5 25.5 23.5 25.5 23.5 WCDMA Band 2 WCDMA Band 4 23.0 23.0 23.0 23.0 23.0 23.0 WCDMA Band 5 WLAN 2.4G 23.0 12.5 23.0 12.5 23.