Texet T-990a Schematic

COVER

5

4

3

2

1

BLOCK

D D

MPU

PMU

AXP209

LCD USB0 OTG

G-Sensor

USB1 WIFI

TP

Interconnect Network,and Power Driven

MOTORCARD HEADPHONESPEAKER

CIM ISCNANDDDR3

GPIO ASSIGNMENT

Define noitcnuFUPC

PB0

C

PB1

PB2

PB3

PB4

PB10

PB15

PB16 PB17

PB18

PG0

PG1

PG2

PG3

B

PG4

PG9

PG10

PG11

PG12

PMU Define Function

GPIO0

GPIO1

GPIO2

GPIO3

TWI0_SCK

TWI0_SDA

PWM0

GPIO-OUT

NC

GPIO-OUT

TWI1_SCK

TWI1_SDA

TWI2_SCK

TWI2_SDA

INPUT

GPIO-IN

UART-TX

UART-RX

GPIO-OUT

EINT

GPIO-OUT

KEY

TWI0

LCD

TP-WAKE-RST

CSI-STY

TWI1

TWI2

SD0-DET-N

USB0-VBUSDET

USB0-IDDET

UART-TX

UART-RX

MT-EN

PA-SHDN

TP-INT

USB0-DRV

LCD-PWR

LCD-BL-EN

CSI-PWR-EN

CSI-RST

POWER TREE

DRAM

ACIN(5V)2A

USBVBUS （5V-900mA）

BAT(4.2V)

3V3@1A

LP3992-18B5F AP1231B18ZRM AP1231B28ZRM

1V8@1A

CSI-CORE

LP3992-28B5F

2V8@1A

CSI-IO

Battery charger /detect

IPSOUT 5V-2A

CARD NAND G-SENSOR TP MOTOR

DCDC2 CPU VDD

1V2@1.6A

1V2@1.2A

LDO1

3V3@30mA

3V@200mA

AXP209

LDO3

5V@1A

3V3@400mA

9V9@1A 10V4@1A

CORE VDDDCDC3

RTC

AVCCLDO2

WIFI

LCD AVDDLCD BLUSB OTG

REVISION HISTORY

C

B

APP3_PAD_DDR3_V1_20

A

ApprovedDrawn CheckedDateDescriptionRevision

version 1.20

5

4

3

CPL

A

Title

APP3_PAD_DDR3

veRemaN tnemucoDeziS

COVER

A3

COVER

A3

COVER

A3

of

1 6

teehS:etaD of

1 6

teehS:etaD of

1 6

2

teehS:etaD

1

veRemaN tnemucoDeziS

5

6

TPY2 TPX2

LRADC

VMIC

MICIN1

VRA1 VRA2 AVCC

VRP

AGND

HPOUTR

HPCOM V33_HP

HPBP

HPOUTL

VDD2_INT

DDR3_ODT

DDR3_A7

DDR3_RST

DDR3_A9

DDR3_A13

DDR3_A5 DDR3_A2 DDR3_A3 DDR3_A0

DDR3_BA0

VCC5_DRAM

DDR3_BA2

DDR3_WE DDR3_CAS DDR3_RAS

DDR3_A14

DDR3_A11

DDR3_A8 DDR3_A6

VCC4_DRAM

DDR3_A1

DDR3_A4 DDR3_A12 DDR3_BA1 DDR3_A10

DDR3_CKE

DDR3_CK_N

DDR3_CK

3

DRAM

SVREF

C148

0.1uF

5

0.1uF

C0402

AUDIO-TP

RESET-N3

LRADC6

C156

C156 1nF

1nF

C0402

88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45

CORE-VDD

DRAM-VCC

VRA1 VRA2 AVCC VRP

GND

HPVCC

HPBP

SA7

SA9 SA13 SA5 SA2 SA3 SA0 SBA0

SBA2

SA14 SA11 SA8 SA6

SA1 SA4 SA12 SBA1 SA10

TPY2 5

TPX2 5 LRADC 6 VMIC 6 MICIN1 6

HPR 6 HPCOM 6

HPL 6

SODT 4

SRST 4

SWE 4 SCAS 4 SRAS 4

SCKE 4 SCK-N 4 SCK 4

VCC-3V3 HPVCC

USB

CPU

CPUVDD

C171

C171 10uF

10uF

C0603

GND

5

4

CPU

SDQ[15:0]

SDQ[15:0]4

SA[14:0]

SA[14:0]4

SBA[2:0]

SBA[2:0]4

HPVCC

D D

AVCC

UVCC

DRAM-VCC

CPUVDD

COREVDD

VCC-3V3

GND

LCD-D205 LCD-D195 LCD-D185 LCD-D155 LCD-D145 LCD-D135 LCD-D125 LCD-D115

C

B B

LCD-D105

LCD-D75 LCD-D65 LCD-D55 LCD-D45 LCD-D35 LCD-D25

TP-WAKE-RST5 CSI-RST-15 CSI-STY-16

USB0-IDDET6

USB0-VBUSDET6

SD0-DET-N4

UBOOT6

NMI-N3 RESET-N3 TWI2-SDA6 TWI2-SCK6 NDQS4

NRB1-N4 NRB0-N4

ND[7:0]4

HPVCC

AVCC

UVCC

DRAM-VCC

CPU-VDD

CORE-VDD

VCC GND

ND[7:0]

VCC

CORE-VDD

CPU-VDD

VCC

CPU-VDD

ND7 ND6 ND5 ND4

CPU-VDD

ND3 ND2 ND1

CPU-VDD

ND0

U1

133

LCD_D20

134

LCD_D19

135

LCD_D18

136

LCD_D15

137

LCD_D14

138

LCD_D13

139

LCD_D12

140

LCD_D11

141

LCD_D10

142

VCC3

143

LCD_D7

144

LCD_D6

145

LCD_D5

146

LCD_D4

147

LCD_D3

148

LCD_D2

149

VDD5_INT

150

PB3/EINT17

151

PG4/UART1_RX/EINT4

152

PG3/UART1_TX/EINT3

153

PG2/EINT2

154

PG1/EINT1

155

PG0/EINT0

156

VDD5_CPU

157

UBOOT

158

NMI_N

159

RESET_N

160

PB18

161

PB17

162

NDQS

163

VCC4

164

VDD6_CPU

165

NDQ7/SDC2_D7

166

NDQ6/SDC2_D6

167

NDQ5/SDC2_D5

168

NDQ4/SDC2_D4

169

VDD7_CPU

170

NDQ3/SDC2_D3

171

NDQ2/SDC2_D2

172

NDQ1/SDC2_D1

173

VDD8_CPU

174

NDQ0/SDC2_D0

175

NRB1/SDC2_CLK

176

NRB0/SDC2_CMD

LCD-DE

LCD-HSYNC

LCD-CLK

LCD-D215LCD-D22

132

LCD-VSYNC

LCD-D23

131

130

128

125

129

127

126

LCD_DE

LCD_D21

LCD_D22

LCD_D23

LCD_CLK

LCD_VSYNC

LCD_HSYNC

5

6

CSI-D2

CSI-D0

CSI-D1

CSI-D36CSI-D46CSI-D56CSI-D66CSI-D7

CSI-VSYNC

CSI-HSYNC

123

122

121

124

CSI_D6/UART1_TX

CSI_D5/SDC2_CLK

CSI_D7/URAT1_RX

CSI_D4/SDC2_CMD

115

116

120

119

118

117

CSI_D3/SDC2_D3

CSI_D2/SDC2_D2

CSI_D1/SDC2_D1

CSI_D0/SDC2_D0

CSI_VSYNC/SPI2_MISO

CSI_HSYNC/SPI2_MOSI

CSI-PCLK

CSI-MCLK

113

114

CSI_PCLK/SPI2_CS0/EINT14

CSI_MCLK/SPI2_CLK/EINT15

6

SD0-CLK

SD0-CMD

SD0-D24SD0-D3

CORE-VDD

110

109

111

112

SDC0_D2

SDC0_D3

SDC0_CLK

SDC0_CMD

TQFP177P0_4

6

4

6

4

PWM0

TWI0-SCK

SD0-D04SD0-D1

108

VDD4_INT

TWI0-SDA

TWI1-SDA

TWI1-SCK

VCC

102

101

104

103

100

107

106

105

PB16

SDC0_D0

SDC0_D1

99

PB15

VCC2

TWI0-SDA

TWI0-SCK

PB4/EINT18

PB2/EINT16

5,6

UVCC

CORE-VDD

97

98

96

NC

V33_USB

VDD3_INT

3

5

DP0

DP1

DM0

DM1

X24MI

94

95

93

92

UDP1

UDP0

UDM1

UDM0

6

TPX1

TPY1

X24MO

91

89

TPY190TPX1

X24MIN

X24MOUT

GND

C172

C172 1uF

1uF

C0402

DRAM-VCC

C142

C142 10uF

10uF

C0603

GNDGND

C157

0.1uF

C0402

GND

C160

0.1uF

C0402

C173

C173 1uF

1uF

C0402

2

CRYSTAL

C36

GND

C35

0.1uF

C0402

C153

0.1uF

C0402

C176

0.1uF

C0402

C36

0.1uF

C0402

C161

C161 1nF

1nF

C0402

C154

4.7uF

C0603

C177

0.1uF

C0402

C162

C162 1nF

1nF

C0402

GPIO

VCC-3V3

C167

C167 10uF

10uF

C0603

GND

C178

0.1uF

C0402

VRA2

R95

C155

200K1%

0.1uF

R0402

C0402

GND GND

TPY25

TPY15

C168

C168 1uF

1uF

C0402

DGND

CORE

COREVDD

GND

C33

C33 1uF

1uF

C0402

UVCCVCC-3V3

GND

C174

C174 1uF

1uF

C0402

C166

0.1uF

C0402

TPX25

TPX15

C34

C34 1uF

1uF

C0402

VRP

C152

C152 10uF

10uF

C0603

C175

0.1uF

C0402

C49

C49 10uF

10uF

C0603

X24MI

X24MO

C163

C163 1nF

1nF

C0402

C169

C169 1uF

1uF

C0402

C150

C150 1uF

1uF

C0402

MICM6

1

C164

C164 1nF

1nF

C0402

C170

0.1uF

C0402

C181

C181 1uF

1uF

C0402

3

1

VRA1

223

C158

C158 10uF

10uF

C0603

C149

C149 18pF

18pF

C0402

X1

X1 24MHz

24MHz

CRS_3X8

C179

C179 18pF

18pF

C0402

HPBP

C182

0.1uF

C0402

C151

C0402

1uF

R124

R124 0R

0R

R0402

GND

GNDGND GNDGND GND

C183

0.1uF

C0402

C159

0.1uF

C0402

C

177

GND

DRAM-VCC

R89

C82

2K1%

0.1uF

R0402

C0402

R91

R91 2K1%

2K1%

R0402

GND

C0402

C84

0.1uF

C0402

SVREF

A

GND

NRE

A13

5

1

CPU-VDD

NRE-N

NCE1-N4NCE0-N

A13

NCE02NCE1/SPI0_CS03VDD1_CPU4VCC15NCLE/SPI0_CLK6NALE/SPI0_MISO7NWE/SPI0_MOSI8VDD2_CPU9VDD3_CPU11PG9/SPI1_CS0/UART3_TX/EINT912PG10/SPI1_CLK/UART3_RX/EINT1013PG11/SPI1_MOSI/UART3_CTS/EINT1114PG12/SPI1_MISO/UART3_RTS/EINT1215VDD4_CPU16DZQ17SVREF18DDR3_D419DDR3_D620DDR3_D221DDR3_D022VCC1_DRAM23DDR3_D1124DDR3_D925DDR3_D1326DDR3_D1527DDR3_DM128DDR3_DM029VCC2_DRAM30DDR3_DQS031DDR3_DQS0_N32DDR3_DQS133DDR3_DQS1_N34VDD1_INT35DDR3_D1236DDR3_D837DDR3_D1438DDR3_D1039DDR3_D140DDR3_D341DDR3_D742VCC3_DRAM43DDR3_D5

PB10/EINT24

10

MT-EN

4

TP-INT

PA-SHDN

R94

240R1%

R0402

SZQ

CPU-VDD

4

USB0-DRV

GND

SDQS0

SDQS0-N4SDQS1-N

CORE-VDD

SDQS1

SDQ9

4

SDQ11

SDQ15

SDQ1

SDQ3

SDQ7

SDQ5

SDQ8

SDQ12

SDQ14

6

5

4

SDQ10

DRAM-VCC

3,6

DRAM-VCC

SDQM04SDQM1

SVREF

5

6

VCC

CPU-VDD

4

NALE

NCLE

NWE-N

CSI-STY

44

SDQ0

SDQ2

SDQ6

SDQ4

SDQ13

DRAM-VCC

4

CSI-IOVDD

3

RTC

TWI-PULLUP

VCC-3V3

R96 2K R0402R96 2K R0402 R97 2K R0402R97 2K R0402 R98 2K R0402R98 2K R0402 R99 2K R0402R99 2K R0402 R100 2K R0402R100 2K R0402 R101 2K R0402R101 2K R0402

NMI-N

2

C185 NC

C0402

TWI0-SDA 3 TWI0-SCK 3 TWI1-SDA 5,6 TWI1-SCK 5,6 TWI2-SDA 6 TWI2-SCK 6

X2

32.768KHz

CRS_3X8

3

Title

12

GND

A3

U9

1

OSCI

2

OSCO

3

nINT

4

GND

TH9563

SOIC8

APP3_PAD_DDR3

CPU

RTCVDD

PCF8563/AT8563

8

VDD

7

CLKO

6

SCL

5

SDA

C184

0.1uF

C0402

GND

TWI1-SCK TWI1-SDA

1

teehS:etaD

2 6

teehS:etaD of

2 6

teehS:etaD of

2 6

A

veRemaN tnemucoDeziS

of

5

4

3

POWER

POWER LINE:Width>=60mil

CSI-PWR-EN6

CSI-RST6

VCC-3V3

IPSOUT

COREVDD

AVCC

CPUVDD

WIFI-3V3

RTCVDD

VCC-3V3

R108

R108 10K

10K

R0402

D1

D1 IN5819

IN5819

SOD123

R113

R113 47K

47K

SW2 KEY4_HS

R0402

ED1 Vari D0402ED1 Vari D0402

GND

U2

U2 AXP209

AXP209

QFN_48

39

BAT2

38

BAT1

CHSENSE

PGND1

VIN1

DCDC2 PGND2

VIN2

DCDC3 PGND3

VIN3

LDO24IN

LDO1

LDO2

LDO3

LDO3IN

LDO4

PWROK

LDO1SET

DC3SET

OPTION

LX1

LX2

LX3

42

43

45

46 44

8 10 9 7

15 17 16 14

13

28

12

41

40

11

VCC-3V3

25

27 29

IPSOUT

R114 47K R0402R114 47K R0402

VINT

C189 4.7uF C0603C189 4.7uF C0603

L2 4.7uH L3x3L2 4.7uH L3x3

C195

C195 10uF

10uF

C0603

L4 4.7uH L3x3L4 4.7uH L3x3

IPSOUT

LDO1

AVCC-3V

LDO3IPSOUTIPSOUT

IPSOUT

L1

4.7uH

L3x3

CPU-1V2

C193

C193 10uF

10uF

C0603

C203 10uF C0603C203 10uF C0603

C205 1uF C0402C205 1uF C0402

C207 4.7uF C0603C207 4.7uF C0603

C209 4.7uF C0603C209 4.7uF C0603

C214 10uF C0603C214 10uF C0603

RESET-N 2

C217

C217 1uF

1uF

C0402

GND

C201

C201 10uF

10uF

C0603

C194

C194 1nF

1nF

C0402

INT-1V2

GND

R104 0R03 R0805R104 0R03 R0805

GND

BATSENSE

IPSOUT

2 4

GND

IPSOUT

USBVBUS

1R

R0402

VINT

R115

R115 510R

510R

R0402

37

TS

34

PS1

35

PS2

33

ACIN2

32

ACIN1

31

VBUS

3

GPIO3

5

GPIO2

49

THERMAL

36

CHGLED/GPO

30

BACKUP

26

VINT

23

BIAS

22

AGND

24

VREF

21

APS

19

GPIO0/LDO

18

GPIO1

20

EXTEN

47

PWRON

4

N_OE

6

N_VBUSEN

48

IRQ

2

SCK

1

SDA

SW1

1 3

RESET

KEY4_HS

R103 100R R0402R103 100R R0402

GND

C192

C192 22uF

22uF

C0805

GND

ACIN-5V

R202

R202 1R

1R

R0402

C196

10uF

C0603

GND

C206 1uF C0402C206 1uF C0402

GND

LCD-PWR5

LCD-BL-EN5

2

1

POWER

2

1

4

3

4

3

R107

C200

10uF

C0603

GND

R112 200K1% R0402R112 200K1% R0402

C208 1uF C0402C208 1uF C0402

C213

4.7uF

C0603

GND

EXTEN

R2 1K R0402R2 1K R0402

C3 1nF C0402C3 1nF C0402

GND

ED2

Vari

D0402

BAT

C187 1uF C0402C187 1uF C0402

C190

4.7uF

C0603

GND

C202

C202 1nF

1nF

C0402

C191

4.7uF

C0603

IPSOUT

GND

C216

C216 10uF

10uF

C0603

EXTEN

GND

AVCC

R254

100K

R0402

R255

100K

R0402

IPSOUT

INT-1V2

D D

AVCC-3V

CPU-1V2

LDO3

LDO1

VCC-3V3

C

B

USB0-DRV2,6

NMI-N2 TWI0-SCK2 TWI0-SDA2

C275

C275 10uF

10uF

C0603

C255

C255 10uF

10uF

C0603

2

J15

NC

CON2P_2

R242

R242 1K

1K

R0402

R198

R198 1K

1K

R0402

L9

6.8uH

L3x3

EXTEN

R256

R256 100K

100K

R0402

GND GND

GND

1

2

R253

100K

R0402

R213

100K

R0402

7

5

6

1

9

U32

SW

BATT

LBI

EN

GND2

LP6251

EMSOP8

TP104

TP1MM

GND

U27

U27 LP3220

LP3220

SOT23_5

4

VIN

2

GND

1

EN

U26

U26 LP3220

LP3220

SOT23_5

4

VIN

2

GND

EN1FB/VOUT

OUT

GND

C211

10uF

C0603

FB/VOUT

LBO

FB

GND

LX

2

100K1%

4

3

8

BAT

C280

0.1uF

C0402

R257

R0402

1

DRAM-VCC

L21

3

5

3

5

L20

R203

R203 140K1%

140K1%

R0402

R204

R204 15K1%

15K1%

R0402

VCC-5V

GND

2.2UH

L3x3

C277

C277 68pF

68pF

C0402

2.2UH

L3x3

C273

C273 68pF

68pF

C0402

5.16V

C278

C278 68pF

68pF

C0402

C234

C234 10uF

10uF

C0603

R252

300K1%

R0402

R251

200K1%

R0402

R201

442K1%

R0402

R200

100K1%

R0402

C218

C218 10uF

10uF

C0603

GND

VCC-3V3

C300

0.1uF

C0402

C210

10uF

C0603

C204

10uF

C0603

TP84

TP1MM

C0402

TP83

TP1MM

C0402

C274

0.1uF

C245

0.1uF

C

B

A

5

GND

Title

APP3_PAD_DDR3

POWER

A3

POWER

A3

POWER

A3

of

3 6

teehS:etaD of

3 6

teehS:etaD of

3 6

4

3

2

teehS:etaD

1

A

veRemaN tnemucoDeziS