ViewSonic VS15197 Service Manual page 45

NFC
CN19
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
VDD_1V8_SYS
8
11 9
VDD_3V3_NFC
11 9
12 10
12 10
*NFC CONN C631 C632
*0.1uF/16V_4 *0.1uF/16V_4
Accelerometer & Compass
R347
14,24,27 GEN1_I2C_SCL_1V8
R348
14,24,27 GEN1_I2C_SDA_1V8
R351
14 WPT_LSM303_INT1
R352
14 WPT_LSM303_INT2
R353
4 MAG_DRDY#
C272
4.7u/10V_6
ViewSonic Corporation
GEN1_I2C_SCL_1V8 14,24,27
GEN1_I2C_SDA_1V8 14,24,27
NFC_IRQ 13
IRQ
NFC_EN_GPIO 14
VEN
NFC_UPLOAD 13
GPIO4
U24
1
Vdd_IO
2
0_4 GEN1_SCL_COMP
SCL
0_4 GEN1_SDA_COMP 3 14
SDA Vdd
0_4 5 8
INT1 Reserved
0_4 4
INT2
9
0_4
DRDY#
6 10
C1 Reserved
13 11
C271 0.22u/50V_6
SETC Reserved
12 7
SETP Reserved
LSM303DLHC_G+M Sensor
VDD_1V8_SENSOR
VDDIO_LSM303 0_4 R349
VDD_2V8_SENSOR
VDD_LSM303
0_4 R350
C269 C270
10u/6.3V_6 0.1uF/16V_4
Accelerometer Address :
Read : 0x31 / 0x33
Write : 0x30 / 0x32
Magnetometer Address :
Read : 0x3D
Write : 0x3C
44
Confidential - Do Not Copy
Sensor 1.8V
VDD_1V8_SYS
U25
6
2 1 5
C273 4.7u/10V_6
4
R354 0_4
14 EN_1V8_SENSOR
Vih = 1.1V G5287RR1U
R770 10K_4
VDD_3V3_SYS
C275
0_4 R358
2.2u/6.3V_4
Vih = 1.2V
7 EN_2V8_SENSOR
R771
VSD241/SD-A245/CDS245
VDD_1V8_SENSOR
1
IN OUT
2
C274
IN GND
3
10u/6.3V_6
ON/OFF DIS
VDD_2V8_SENSOR
U27
1 5
VIN VOUT
2
GND
C276
3 4
2.2u/6.3V_4
EN NC
G9090-280T11U
10K_4