Block Diagram

FCC ID: WQNTN2008

Block Diagram

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FCCID_1007537

R55
200R
R8
D 200R R audio output earphone port VBAT D
control of audio output speaker
LED6
working instruction L audio output APM2305

U2
EN amplifier IC LM4990
12MHz

CRYSTAL
CE

57

51
52

10
11

54

34
VCC-AU

55
Reset circuit

IIC/CS0
IIC/FM-CLK
58 IIC//FM_Dout(0)

P17
R_OUT
L_OUT
IIC//CS1
RC 111 DC-RDY
PLL
14 RST#
16-BIT DAC
13 USB-DET VCC
USB2.0
DM 122 DM
PHY
USB port DP 123 DP IIS接口
Ctrl
U3
VUSB encrypt IC
C C

NF-PRETST 92 VCC VCC
MCU ：SM339 P13
KEY0 P31
U4
NF0-D0~D7 LED
NAND

EXT-WRITE
R/B Nand Flash
FLASH
LED2 ALE 8G BIT
I/f
electronic lock CLE
VBAT USB5V CE0~1 memory of Data and software
recharge
FMMT720 120 WE
management inner
2N3904 RD
IC 3.3V
1N4148 VCC
AT1461 LDO
121 ADC-DET
Li battery
3.7V SD Host I/f
inner 1.8V LDO 16MHz RC
XTAL_SEL

P1.4

P1.5
P35
P37

USB5V
ON/OFF
95

RESET U6
31

93

91
OID_DATA SN9P701
6

B VCC VCC-AU B
VDD OID_CLK OID decode IC
VBAT LC circuit
USB5V 3.3V
LDO
Low battery detection circuit OID SENSOR

BAT-DET

SDA
SCL
VCC-REG
U8
AT24LC02
I2C memory

A A

Document Created: 2008-09-23 14:30:45
Document Modified: 2008-09-23 14:30:45

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