K850
1203-2528 rev. 1
MEASUREMENT POINTS
FM Radio
ME
A
S
U
R
EMEN
T
P
O
IN
T
S
Made for
Document Nr
Revision
FMRESn
I2CCLK1
I2CDAT1
68pF
<NM>
C3302
RTCCLK
22nF
C3304
FM_ANTENNA
Signal routed in outer layer
and no groundplane underneath
VBATI
VDDE18
FMR
FML
100nF
C3305
ST2282
21
ASTA/ANJA
D2000
M14
1200-0795
APPLICATION_GPIO00
APPLICATION_GPIO00
100pF
C3306
STLC2592
1
N1400
L6
L5
L4
F8
F7
D4
D6
B3
A4
D9
D8
E9
D7
C9
C5
5
B
8
C
A5
A6
A7
D5
C7
C6
C4
B7
B6
B4
A3
B8
1200-6182
BLUETOOTH-FM_FM
FM_FMIP
FM_RFGND
FM_RST
FM_SENB
FM_SCL
FM_SDA
FM_RTCCLK
FM_GPIO1
FM_GPIO2
FM_GPIO3
FM_ROUT
FM_LOUT
NC
NC
NC
NC
NC
NC
FM_VA
FM_VD
FM_VIO
FM_GND
FM_GND
FM_GND
FM_GND
FM_GND
FM_GND
FM_GND
FM_GND
FM_RADIO_IO
FM_PWR_GND
ST3300
2
1
0ohms
R3301
3.3Kohms
R3302
270nH
L3300
FM_INT
VBATI VDDE18
FMRESn
FMR
FML
VDDE18
VDDE18
VBATI
Audio
FM Radio
1200-1890 Page 4
3
MP 154
Page 26
MP 151
Page 26
MP 152
Page 26
SEMC Troubleshooting Manual
54
(101)