User's Manual

COMPANY CONFIDENTIAL

4. Electrical Specifications

4.1 Recommended operating conditions

Table 4-1 Recommended operating conditions

Parameter Min Type Max Units

Storage temperature -30 +25 +85 °C

Recommend operating temperature -10 +25 +60 °C

Extend operating temperature -20 +25 +75 °C

Operating voltage 3.135

3.3 3.465 Vdc

Operating T77H468 device under conditions beyond its absolute maximum ratings (Table

4-1) may damage the device. Absolute maximum ratings are limiting values to be

considered individually when all other parameters are within their specified operating ranges.

Functional operation and specification compliance under any absolute maximum condition,

or after exposure to any of these conditions, is not guaranteed or implied. Exposure may

affect device reliability

4.2 Power consumption

Table 4-2 Radio system power consumption

Test condition Estimated power range goal

GSM in standby mode <5mA

GSM (Tx=31dBm) <500mA

WCDMA in standby mode <5mA

WCDMA (Tx=24dBm) <900mA

CDMA in standby mode <5mA

CDMA (Tx=24dBm) <900mA

LTE in standby mode <5mA

LTE (64QAM) Tx=23 dBm <900mA

GPS tracking <200mA

Glonass tracking, high sensitivity <260mA

Remark: Above specification is our target, we are working on current consumption

optimization, we will update after finish current consumption measurement.