參數(shù)資料
型號: MICRF405YML TR
廠商: Micrel Inc
文件頁數(shù): 23/46頁
文件大小: 649K
描述: TRANSMITTER ASK/FSK 24-MLF
標準包裝: 1
頻率: 290MHz ~ 980MHz
應(yīng)用: ISM
調(diào)制或協(xié)議: ASK,F(xiàn)SK
數(shù)據(jù)傳輸率 - 最大: 200 kbps
功率 - 輸出: 10dBm
電流 - 傳輸: 18mA
數(shù)據(jù)接口: PCB,表面貼裝
天線連接器: PCB,表面貼裝
電源電壓: 2.2 V ~ 3.6 V
工作溫度: -40°C ~ 125°C
封裝/外殼: 24-VFQFN 裸露焊盤,24-MLF?
包裝: 標準包裝
產(chǎn)品目錄頁面: 571 (CN2011-ZH PDF)
其它名稱: 576-1965-6
Micrel
MICRF405
 
 
 
 
April 2006 
23
M9999-041906
 (408) 955-1690
 
 
VCO_Fr_Chk
Comments
0
VCO control voltage is not controlled
1
VCO control voltage is measured; if it is below 0.35V the VC_LO interrupt flag is set, if it is higher than
AVDD-0.35V the VC_HI flag is set
Table 13. VCO Control Voltage Out of Range Detection. 
VCO_Fr_Auto     Comments
0
No calibration is done.
1
If VCO control voltage is below 0.35V or above AVDD-0.35V, the VCO frequency settings are altered until
the control voltage is within the window. No VC_LO or VC_HI interrupt flag is set. The new settings can be
read out; bits VCO_Freq_O[2:0] in interrupt register.
If PLL for some reason cannot obtain lock (i.e. if frequency is set wrongly), an interrupt will be given even
if VCO_Fr_Chk = 0.
Table 14. Automatic VCO Range Calibration.
 
VCO Tuning Range for Various VCO_Freq Settings
800.0
850.0
900.0
950.0
1000.0
1050.0
0
0.2    0.4    0.6    0.8
1
1.2    1.4    1.6    1.8
2
2.2    2.4
Varactor Voltage [V]
7
6
5
4
3
2
1
0
 
Figure 10. RF Frequency vs. Varactor Voltage and VCO Frequency Bit.
 
VCO_freq
FreqBand=0
315MHz
FreqBand=1
433MHz
FreqBand=2 or 3
868, 915MHz
1
287
290
430
435
860
870
2
290
293
435
440
870
880
3
293
300
440
450
880
900
4
300
307
450
460
900
920
5
307
313
460
470
920
940
6
313
320
470
480
940
960
7
320
326
480
490
960
980
Table 15. Freq Ranges vs. VCO_freq and FreqBand. 
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