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3. Detailed Interface Specifications
Note:
If not specified, all electrical values are given for VBATT=3.7V and an operating temperature of 25°C.
For standard applications, VBATT and VBATT_PA must be tied externally to the same power supply.
For some specific applications, AirPrime HL77xx modules support separate VBATT and VBATT_PA
connections if requirements below are fulfilled.
3.1.
Power Supply
The AirPrime HL77xx modules are supplied through the VBATT and VBATT_PA signals.
Refer to the following table for the pad description of the Power Supply interface.
Table 7.
Power Supply Pad Description
Pad Number
63
61, 62
37, 39, 48, 67-70, 167-234
Refer to the following table for the electrical characteristics of the Power Supply interface.
Table 8.
Power Supply Electrical Characteristics
Supply
VBATT voltage (V)
VBATT_PA voltage (V) Full Specification
VBATT_PA voltage (V) Extended Range
1
This value must be guaranteed during the burst
2
No guarantee of 3GPP performances over extended range
Note:
Load capacitance for VBATT is around 37µF ± 20% (TBC) embedded inside the module.
Load capacitance for VBATT_PA is around 11µF ± 20% (TBC) embedded inside the module.
41110555
Signal Name
VBATT
VBATT_PA
GND
Minimum
3.2
1
3.2
1
2.8
(TBC)
2
Rev 1.0
I/O
Description
I
Power supply (base band)
I
Power supply (radio frequency)
Ground
Typical
3.7
3.7
3.7
November 01, 2017
Maximum
4.5
4.5
4.5
23
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