Motore di ricerca datesheet componenti elettronici |
|
MC13821 Scheda tecnica(PDF) 11 Page - Freescale Semiconductor, Inc |
|
MC13821 Scheda tecnica(HTML) 11 Page - Freescale Semiconductor, Inc |
11 / 42 page Application Information MC13821 Data Sheet: Technical Data, Rev. 1.5 Freescale Semiconductor 11 Application information for 1575, 1960, 2140 and 2400 MHz are shown. For each application, two current drain examples are provided. Typical RF performance is shown for two values of bias resistor R1: 1.2 k Ω and 2 k Ω, see Table 6, Table 7, Table 8, and Table 9. These two current drain states offer variation in intercept point, gain, and noise figure. For 1960 and 2140 MHz, additional application circuits are shown. These demonstrate specific performance characteristics and utilize varying input and output matches and different biasing resistors. Measurements are made at a bias of VCC = 2.75 V. Freq. spacing for IP3 measurements is 200 kHz. Non-linear measurements are made at Pin = -30 dB. The board loss corrections for these boards are: Input 0.16 dB, Output 0.2 dB. Gain and NF results incorporate these corrections in order to better reflect the actual performance of the device. 3.1 1575 MHz Application This application circuit was designed to provide NF < 1.2 dB, S21 gain > 18 dB, OIP3 of 18 dBm with S11 better than -10 dB and S22 better than -10 dB at 1575 MHz with unconditional stability from 100 MHz to 10 GHz. Typical performance that can be expected from this circuit at 2.75 V VCC is listed in Table 6. The component values can be changed to enhance the performance of a particular parameter, but usually at the expense of another. Two variations of the circuit are realized for different requirements for IP3 and ICC. Values of external resistors R1 and R2 are varied to adjust ICC and IP3. Figure 9. 1575 MHz LNA Application Schematic 2 1 3 4 5 6 12 11 10 8 9 7 Gnd LNA OUT R1 2 k LNA IN Gain Enable Vcc1 R2 680 MC13821 1575 MHz LNA L1 5.6 nH C1 22pF C2 1 pf L2 5.6 nH C3 33 pf C4 .01uf Rbias Vcc3 C5 .01uf C6 33 pf Logic N C NC NC NC |
Codice articolo simile - MC13821 |
|
Descrizione simile - MC13821 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |