Hardware Interface Description - KORE Telematics

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XT55/56 Hardware Interface Description Confidential / Released s Table 29: Power supply ratings (GPS part) Parameter Description Conditions Min Typ Max Unit GPS_VCC Supply voltage 3.14 3.3 3.46 V I GPS_VCC Average supply current Continuous mode (without antenna feeding on GPS_VCC_RF) 80 100 mA Please note that the stated current values are depending on the used mode of the module XT55/56_hd_v02.06a Page 96 of 125 17.12.2004
XT55/56 Hardware Interface Description Confidential / Released s 6.4.1 Current consumption during GSM transmit burst The diagrams provided in Figure 46 and Figure 47 illustrate the typical current consumption of the application caused during a transmit burst. The typical peak current is shown vs. the power control level for 900 MHz, 1800 MHz and 1900 MHz and vs. the return loss of the antenna. Test conditions: All measurements have been performed at T amb = 25°C, V GSM_BATT+ nom = 4.1V. Reference points for measuring the voltage are the GSM_BATT+ and GND test points on the back side of the module. The curves are for one TX slot (for example a voice call, CSD call or Class 8 GPRS). Curves for Class 10 GPRS activities (2 TX slots) are shown too. Changing the conditions, e.g. in terms of temperature or voltage, will cause different results. Average Current GSM900 (V BATT+ =4.1V) 0.5 0.45 0.4 0.35 0.43 1 TX - Average Current 2 TX - Average Current Current (Amps) 0.3 0.25 0.2 0.25 0.33 0.21 0.23 0.15 0.1 0.15 0.16 0.11 0.14 0.10 0.13 0.10 0.05 0 5 7 9 11 13 15 17 19 Power Control Level Figure 41: Typical current consumption vs. return loss in EGSM 900 network XT55/56_hd_v02.06a Page 97 of 125 17.12.2004
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Hardware Interface Description - KORE Telematics

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