Panasonic KX-TG2711B - Page 17

17
KX-TG2711/KX-TG2712/KX-TG2721/KX-TG2722/KX-TGA277
KX-TGA277 SCHEMATIC DIAGRAM (Handset)
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(8)
CHARGE
CHARGE_CTRL
COL0
LDO_CTRL
LDO_CTRL
SOCn
SOCp
POWER
PCB
RE1
R28
820
CARBON_CL1
C73
NC
SP-PHONE_SPEAKER
+
-
C72
NC
GND
C11
K0.1u
C13
K0.1u
GND
+1.8V
MIC+
MIC-
RCV+
C71
NC
C70
NC
GND
RCV-
RECEIVER
+
-
L47 J0JDC0000045
GND
CP_LED
CPLED
*C54 1u
CP+3.0V
GND
C55 NC
C49
K1u(1608)
GND
VBAT
C188
K1u
VREFm
C105 100p
GND GND GND
DNGDNG
DN
G
GND
GND
C189
NC
R23
1k
VREFm
GND
S1
12
GND
C99
NC
C98
NC
GND GND
GND
GND
CN51
16
GND
ANT1_TP
GND
CP3V
1.8V
*MIC AP1
1
2
Q2
ANT-Short
ANT-Short-GND
D21
NC
D22
NC
D13
4.3V
D14
4.3V
C2
NC
GND
C36
NC
L46
J0JDC0000045
GND
GND
*RF-SHIELD
NC
12
6
8
10
12
3 45
9
11
13
7
GND
C190
K0.1u
D3
NC
GND
VBAT
C191
K1u
C10
K1u
C42
K1u
C51 K1u
*C50
NC
R27
820
25
LSRn
26
AVD
27
LDO_CTRL
28
P3_3/ADC0
29
P1_0/INT0/ADC1
30
NTC/ADC2
31
SOCp
32
SOCn
33
CHARGE_CTRL
47
CP_C2y
48
CP_VOUT1
49
CP_VOUT2
23
VREFm
24
LSRp
34
P1_7/CHARGE
35
P3_1/DP1/PAOUTp
36
VDDPA
45
CP_C1y
46
CP_VBAT2
37
P3_0/DP0/PAOUTn
18
P3_2/CIDINp
19
VREFp
20
CIDINn/MICp
21
CIDOUT/MICn
22
MICh
38
CP_VBAT1
39
NC1
40
NC2
41
VDD2
42
VBAT
43
CP_C1x
44
CP_C2x
C75
NC
VREFm
VREFm
C859
10p
GND
GND
R95
NC
C95
NC
R94
NC
GND
C94
NC
C801
10p
RF_RXn
RF_RXp
RF_TXp
RF_TXn
GND
GND
C862 1.5p
C14
10u(2125)
6.3V
C860 2.2p
C861 2.2p
C52 10u
for carbon
impedance check
MICp
MICn
RF BLOCK
Pre-matching
%A%C%W2=
4layer GND 6/2=$N$?$a
PCB information
LPF
open-stub
SL
W=2.9mm
L=3.8mm
open-stub
SL
W=2.0mm
L=10.8mm
open-stub
SL
W=2.2mm
L=5.0mm
SL
W=0.3mm
L=6.95mm
SL
W=0.3mm
L=6.5mm
TX-balun
SL
W=0.3mm
L=39.0mm
RX-balun
SL
W=0.175mm
L=3.6mm
S=0.125mm
open-stub
SL
W1=0.2mm
L1=3.3 mm
W2=0.7mm
L2=5.0mm
open-stub
SL
W1=0.2mm
L1=3.3 mm
W2=0.7mm
L2=5.0mm
open-stub
SL
W1=0.2mm
L1=3.3 mm
W2=0.7mm
L2=4.3mm
FbB"
C=3.6pF
10.5mm2
FbB"
C=3.6pF
10.5mm2
SL
W=0.2mm
L=20.0mm
open-stub
SL
W=0.6mm
L=20.0mm
<u?.46EY:GE,2=$N$?$a
%A%C%W$KCV$-49$(
1.9GHz Trap
1.9GHz Trap
NC: No Components
2/2