2. Power supply part: composed of lithium battery, TPS79333, TPS62200 and XC6206, which is
responsible for power supply circuit of each part of the entire MP3.
3. Peripheral jack” composed of headphone output port, MIC input port and USB jack. Headphone
jack is the audio output jack of the player, MIC is the audio input jack of external recording and USB jack
fulfills internal and external data exchange of the machine to realize charge function.
4. Data storage module: composed of Flash and peripheral circuit to fulfill data storage of the player.
5. Display module: V3 adopts 2.4” high-bright QVGA screen and V5 adopts 3” high-bright 16:9 LCD
screen.
6. Tuning module: FM tuning.
3.1.3 Introduction to IC used by the player
1. IC used by the main board of V3 is shown in the following picture:
Location number
Chip
Function
U1
HY57V641620ETP-7
SDRAM
U2
RK2608
Main video decode board
U3
RT9284B
12V voltage DC-DC conversion
U4, U5
K9G8G08U0M
FLASH
U6
TPS62200
1.8V voltage DC-DC conversion
U8
MCP73832
Charge management
U9
TEA5767HN
Tuning chip
U10
M41T62
Real-time clock
U11
WM8750BL
Audio encode/decode
U14
XC6206P152MR
1.8V voltage stabilizing
U15
CY8C21534
Touch button control
U16
TPS79333DBVR
3.3V voltage DC-DC conversion
2. IC used by the main board of V5 is shown in the following picture:
Location number
Chip
Function
U1
WM8750BL
Audio encode/decode
U2
HY57V641620ETP-7
SDRAM
U3
RK2608
Main video decode
U4, U5
K9G8G08U0M
FLASH
U6
M41T62
Real-time clock
U7
TEA5767HN
Tuning chip
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