 |
전자부품 데이터시트 검색엔진 |
|
|
전자부품 데이터시트 검색엔진 |
|
LLCC68 데이터시트(PDF) 27 Page - Semtech Corporation |
|
|
|||||||||||||||||||||||||||||
LLCC68 데이터시트(HTML) 27 Page - Semtech Corporation |
|
|
27 / 111 page  LLCC68 Data Sheet Rev. 1.1 DS.LLCC68.W.APP Dec 2024 27 of 111 Semtech LLCC68 www.semtech.com 4.4 Transmitter The transmit chain uses the modulated output from the modem bank which directly modulates the fractional-N PLL. An optional pre-filtering of the bit stream can be enabled to reduce the power in the adjacent channels, also dependent on the selected modulation type. The default maximum RF output power of the transmitter is +22dBm. The RF output power is programmable with 32dB of dynamic range, in 1dB steps. The power amplifier ramping time is also programmable to meet regulatory requirements. The power amplifier is supplied by the regulator VR_PA and the connection between VR_PA and RFO is done externally to the chip. VR_PA, supplied through VDD_IN, is taken directly from the battery and in this case maximum output power is limited by supply voltage at VDD_IN. • Figure 4-3: PA Supply Scheme in DC-DC Mode 1.8 to 3.7V VBAT LDO DC-DC DCC_SW VREG (1.55V) VDD_IN (1.8 to 3.7V) REG PA VR_PA (up to 3.1V) RFO PA LP CORE (RX) (PLL) 6 (1.55V) |
|
링크 URL |
| ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크 투 데이터시트 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Korean ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
