Circuit Description

FCC ID: V7TW311R

Operational Description

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FCCID_1153398

Circuit Description

The transmission data modulated the MCU(RT3050) which gets a digital modulation
then passing through the MCU, working with 40MHz crystal for producing a signal to
the RF module circuit carrying wave amplified by the amplifier and filter circuit unit,
through the antenna then transmit out as 2412MHz to 2462MHz

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) forCPU`S reference frequency,
2、SDRAM：U8 Hynix HY57V281620FTP-H CMOS Synchronous 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；

Document Created: 2009-08-13 14:00:32
Document Modified: 2009-08-13 14:00:32

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