41110555
Rev 1.0
November 01, 2017
23
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
Signal Name
I/O
Description
63
VBATT
I
Power supply (base band)
61, 62
VBATT_PA
I
Power supply (radio frequency)
37, 39, 48, 67-70, 167-234
GND
Ground
Refer to the following table for the electrical characteristics of the Power Suppl
y
interface.
Table 8.
Power Supply Electrical Characteristics
Supply
Minimum
Typical
Maximum
VBATT voltage (V)
3.2
1
3.7
4.5
VBATT_PA voltage (V) Full Specification
3.2
1
3.7
4.5
VBATT_PA voltage (V) Extended Range
2.8
2
(TBC)
3.7
4.5
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.
