SYSTEM CONNECTOR INTERFACE
25
LZT 123 8020 R1A
Parameter Limit
I
max
≅
12.5 mA
5.3.2
Digital Ground - DGND
DGND is the reference or return signal for all system interface
digital signals and is also the d.c. return for SERVICE and the
power supply, VCC. Connect all DGND pins together in your
application in order to carry the current drawn by the radio
device.
Parameter
Per Pin
Total (5 Pins)
I
max
< 6.0mA
< 3.0A
I
avg
< 100mA
< 600mA
5.4 VCC - Regulated Power Supply Input
Pins Signal
Description
1, 3, 5, 7, 9
VCC
regulated power supply input
Power is supplied to the radio device VCC pins, from an
external source.
Connect all VCC pins together in your application in order to
carry the current drawn by the radio device.
The electrical characteristics for VCC are shown in the table
below.
Parameter Mode
Limit
Nominal
3.6 V
Tolerance including
ripple
1
3.4 V - 4.0 V
Over-voltage limit
5.5 V
Vcc supply voltage
Maximum ripple
< 100 mV @ <200
kHz; < 20 mV @ >
200 kHz
Maximum allowable voltage
drop
Burst transmission
200 mV
< 500 mA (average)
Current drawn, at full TX power
< 2 A (peak)
1
Measured at system connector pins.
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