Table 10 RF power supply
Vmin/V Vtyp/V Vmax/V ItypmA Imax
mA
Notes
VR1
2.7
2.78
2.86
65
75
VTX (Supply voltage for PMB3258 LO and RX parts
VR2
2.7
2.78
2.78
2.4
3.0
VXO (VCXO supply voltage)
VR3
2.7
2.78
2.86
41
47
VTX2 (Supply voltage for PMB3258 modulator
output stage)
VR4
2.7
2.78
2.86
43
48
VRX (Supply for RFIC RX and TX parts)
VR5
2.7
2.78
2.86
29
35
VPLL (Supply for VCO, PLL and digital parts
VBATTRF
3.1
3.6
4.7
1.5
3.5
Supply voltage for the front-end module (Vbatt,
max=6.0 V)
The table below shows the typical current consumption in different operation modes.
Table 11 Baseband power supply
Signal, Nom Volt.,
Max Current
Min-Max Voltage (V)
Iqmax
PSSR(dB)*
Notes
VANA, 2,78V, 80mA
2.7-2.86
200
50, 40
Disabled in sleep
mode
VBB1 2,78V, sleep
2mA, norm. 50mA
2.7-2.86
15 sleep, 200
40, -
Sleep mode
possibility
VSIM, 1.8/3.0, 25mA
1.745- 1.8552.910-
3.090
30 sleep, 80
40, -
Sleep mode
possibility,
programmable
VIO, 1.8V
1.72 - 1.88
15 sleep, 100
45, -
Sleep mode
possibility
VCORE,1.055/1.25/
1.35/1.5V
1.0 - 1.111.188 -
1.3131.285
-1.4151.425 -1.575
20 sleep, 200
40, -
Sleep,
programmable,
Initial voltage
1.35V from reset
External regulators
White LED Driver solution is implemented with DC/DC converter. The driver circuit is controlled by UEM output
pin DLIGHT, which add external pull up using a digital transistor and one resistor. The schematics also combined
the UEMIO (5) to control DC/DC enable as another optional using two jumper.
Energy management
Filter components
The master of EM control is UEMCLite and with SW it has the main control of the system voltages and operating
modes. The power distribution diagram is presented in the illustration below.
RH-64
System module
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