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overlapping pads of same net
Low Quiescent Current LDO 3,3VDC
IC2
Battery Supply (3xAA)
VBAT
1
JP2
JP-3
n.b.
#VCC
3
BT1
3xAA
IN
2
DGND
R49
0R00
C17
1uF
5
OUT
R55
n.b. 1M00
GND n.b.
3
2
1
DGND
R48
0R00
EN
VCC
4
FB
TPS78001
adjustable Vcc:
2M + 820k bestückt = 3,3V
nur 820k bestückt = 2,7V
nur 2M bestückt = 1,8V
n.b.
R56
2M00
n.b.
R57
820k
C18
1uF
DGND
IC17
8
Net-Suply from AC/DC-Adapter VDC
6
X9
3
DGND
IN
OUT
EN
BYP
FB
GND
1
4
C40
10nF
5
DGND
TPS79433DGN
PJ-002AH-SMT
fixed version
DGND
5V Supply from USB Host
USB5V
L3
Current measurement of radio module
T1
IRLML6402
VBUS
JP5
1k@100MHz
C21
100nF
DGND
C20
4.7uF
C22
4.7uF
R24
R25
n.b. 47k0
R26
DGND
n.b. 4k7
IC5
3
VCC
RST
/PWREN
1
C23
100nF
VCC
VCC_module
JP-2
270R
R27
n.b. 47k0
n.b. D5
D-BAS40
VBUS Monitoring
2
GND
TCM810JVNB713
VCC
R28
n.b.
/PWREN
DGND
D4
D-BAS40-05
Pin36
USB5V
R29
47k0
VCC
VCC
Pin36
30k0
R52
47k0
VCC
overlapping pads
of same net
n.b.
R58
0R00
R59
0R00
R60
0R00
Programmable Supervisor
VCC
IC15
1
DGND
DGND
2
VBAT Monitoring
JP3
R42
JP-2
820k
3
Pin34
VBAT
Pin34
R61
0R00
R62
7
R63
n.b. 0R00n.b. 0R00
R43
220k
S2
VCC
S1
RST
S0
PFO
MR
GND
8
6
5
JP4
Pin5
Pin5
JP-2
4
LTC2935ITS8-1
DGND
S2/S1/S0=Low/High/High >> Vth=3.00V
S2/S1/S0=High/Low/High >> Vth=2.40V
DGND
DGND
DGND
DGND
dresden elektronik ingenieurtechnik gmbh
D-01237 Dresden, Enno-Heidebroek-Str. 12
Title
Size
A4
Nr.
Änderung
Datum
Name
Date:
deRFgateway-1TNP2-00N00
Document Number
5 646 16 02.103.02
18.03.2011
Time: 10:13:25
Document File Name
Power_Supply.SchDoc
DrawnBy: NOS/APA
Telefon 0351 / 31 85 00
Telefax 0351 / 31 85 010
Sheet 2 of 6
Rev: 2.0