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XT65/XT75 Hardware Interface Overview

6.6 Power Supply Ratings

XT65_XT75_HO_v00.130 Page 43 of 67 2006-10-12

Confidential / Preliminary

6.6 Power Supply Ratings

Table 18: Power supply ratings

Parameter Description Conditions Min Typ Max Unit

BATT+ Supply voltage Directly measured at reference point TP

BATT+ and TP GND.

Voltage must stay within the min/max

values, including voltage drop, ripple,

spikes.

3.3 3.8 4.5 V

Voltage drop during

transmit burst

Normal condition, power control level

for P

out max

400 mV

Voltage ripple Normal condition, power control level

for P

out max

@ f<200kHz

@ f>200kHz

VDDLP

OFF State supply

current

RTC Backup @ BATT+ = 0V 40 µA

BATT+

POWER DOWN mode

Measured after module INIT (switch ON the module and following switch OFF); applied voltage on BATT+ (w/o

INIT) show increased POWER DOWN supply current.

60 120 µA

Average standby

supply current

(GPS off)

Additional conditions:

- SLEEP and IDLE mode measurements started 5 minutes after switching ON the module or after mode transition

- Averaging times: SLEEP mode - 3 minutes; IDLE mode - 1.5 minutes

- Communication tester settings: no neighbor cells, no cell reselection

- USB interface disabled

SLEEP mode @ DRX = 9 3.7

Stated value applies to operation without autobauding (AT+IPR≠0).

SLEEP mode @ DRX = 5 4.6

SLEEP mode @ DRX = 2 7.0

IDLE mode @ DRX = 2 28

Stated value applies to operation without autobauding (AT+IPR≠0). If autobauding is enabled (AT+IPR=0) aver-

age current consumption in IDLE mode is up to 43mA.

Average supply cur-

rent for GPS part

(GSM in IDLE

mode, w/o active

GPS antenna)

Satellite acquisition (no position found) 68 mA

Tracking mode

1 fix/s, tracking on 6 channels, depends on FXN configuration settings

70 mA

Sleep state 32 mA

Shut down mode 28 mA

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 57 58

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