전자부품 데이터시트 검색엔진
Selected language     Korean  ▼
부품명
         상세내용
Preview PDF Download HTML-1page HTML-10pages

TDA18271HD_09 데이터시트(Datasheet) 34 Page - NXP Semiconductors

부품명 TDA18271HD_09
상세내용  Silicon Tuner IC
PDF  70 Pages
Scroll/Zoom Zoom In 100% Zoom Out
제조사  NXP [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo 

 34 page
background image
TDA18271HD_4
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 19 May 2009
34 of 70
NXP Semiconductors
TDA18271HD
Silicon Tuner IC
Fig 14. Flowchart TDA18271CalibrateRF
001aah050
CAL_MODE = 0
SM_LT = 1
AGC1_GAIN = 3h
EP4
-
EB18
Actions
Normal mode
Switch OFF AGC1
Set AGC1_GAIN to 15 dB
BP_FILTER = BP_FILTER
GAIN_TAPER = GAIN_TAPER
RF_BAND = RF_BAND
RFC_K = RFC_K, RFC_M = RFC_M
-
-
-
-
Frequency dependent parameters update
Find BP_FILTER = fRF(max) in BP_FILTER_map
Find GAIN_TAPER = fRF(max) in GAIN_TAPER_map
Find RF_BAND = fRF(max) in RF_BAND_map (MS)
Find RFC_K, RFC_M = fRF(max) in KM_map
Internal table
I2C-bus
RFC_CPROG
BP_FILTER_map
KM_map
GAIN_TAPER_map
freq_input
MS
freq_input
freq_input + 1 MHz
-
EP1 … EP3, EB13
Tuner registers update
-
EP4 … EP5
Tuner registers update
Set the internal calibration signal
Call TDA18271CalcCALPLL
Normal operation for the MAIN PLL charge pump
Normal operation for the CAL PLL charge pump
Get the calibration result
Call TDA18271ReadExtended
LO_FORCESRCE = 0
CAL_FORCESRCE = 0
Downconvert the calibration signal to 1 MHz
Call TDA18271CalcMAINPLL
Wait 5 ms
Wait 10 ms - PLLs locking
Internal synchronization
EP2, EP1, EP2, EP1
EB4
EB7
Launch the RF Tracking filters calibration
FORCE_LOCK = 1
Wait 60 ms - calibration ongoing
EB20
Normal mode
Switch ON AGC1
Set AGC1_GAIN to 6 dB
CAL_MODE = 0
SM_LT = 0
AGC1_GAIN = 0
Tuner registers update
Synchronization
-
-
EB18
-
EP3 ... EP4
-
EP1
LO_FORCESRCE = 1
CAL_FORCESRCE = 1
RFC_CPROG = 0
FORCE_LOCK = 0
CAL_MODE = 3h
EB4
EB7
EB14
EB20
-
MAIN PLL charge pump source
CAL PLL charge pump source
Force DC-DC converter to 0 V
Disable PLLs lock
RF tracking filters calibration mode
Start TDA18271CalibrateRF
End TDA18271CalibrateRF
MS




Html 페이지

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70 


데이터시트




링크 URL

ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ]  

Alldatasheet는?   |   광고문의    |   운영자에게 연락하기   |   개인정보취급방침   |   즐겨찾기   |   링크교환   |   제조사별 검색
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl