Block Diagram

FCC ID: V7TW311R

Block Diagram

Download: PDF

FCCID_1153397

5 4 3 2 1

Ant.2412~2462MHz
8~14V Step-Down 3.3V
Regulator

2.4GHz TX0 2.4GHz TX0
BPF PA
D D
8~14V Step-Down 1.5V Antenna
SPDT
Regulator 外置1根5dbi
Switch
不可拆卸天线
2.4GHz RX0 2.4GHz RX0
LNA

RT3050
SDRAM
16Mx16

FLASH
2Mx16

C C

RESET

Ant. Tx1 2412~2462MHz
3.3V LDO 2.0V

W311R：1T1R，RT3050，2M FLASH，16M SDRAM，外置1根5dbi不可拆卸天线 RJ45x5

B B
Transformer

原理说明：
Operational Principle

XTAL
1、CPU：U1，The RT3050 SOC combines Ralink's 802.11n draft compliant 1T1R MAC/BBP/2.4G ISM band Transceiver , a high performance 384MHz
MIPS24KEc CPU core, 5‐port integrated 10/100 Ethernet switch/PHY；An 40MHZ crystal(U2) for CPU`S reference frequency,
40MHz 2、SDRAM：U8 Hynix HY57V281620FTP-H CMOS Synchronous
40MHz
XTAL DRAM，16M Byte（16M X 16bit X 1PCS）
3、FLASH：U6 MXIC KH29LV320(160)CBTC-70G/MX29LV320(160)CBTC-70G 4(2)M Byte FLASH，used for store firmware and user`s setting；
4、PA: U10 RichWave RTC6691, Freq.Range:2.4GHz-2.5GHz. PA For transmitter, Gain:33.5db (Max)；
5、LNA：Q1 SirenZa SGA8343Z， Freq.Range:2.4GHz-2.5GHz.LNA For RF receiver，Gain:17db (Max)；
6、BPF：U9，BF2012-E2R4DAA, Freq.Range:2.4GHz-2.5GHz,IL@BW:2.5~3db；
7、RF Switch：U15，Skyworks AS179-92， transmit /receive SPDT Switch；
8、Power part: U16 and U14，CP2894 Step-Down PWM Converter，used for transfer DC8~14V to DC3.3V and DC1.5V ；；U25 SE8117TALF LDO used for transfer DC3.3V
to DC2.0V；

ANT

W311R

LANx4+WANx1
WPS Reset
A Power A

supply

LED
Indication Title
TENDA
W311R
Size Document Number Rev
RT3052 AP
C 0.1
Block
Date: Tuesday, June 16, 2009 Sheet 14 of 14
5 4 3 2 1

Document Created: 2009-08-13 16:09:53
Document Modified: 2009-08-13 16:09:53

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