Motore di ricerca datesheet componenti elettronici |
|
SL1710 Scheda tecnica(PDF) 6 Page - Mitel Networks Corporation |
|
SL1710 Scheda tecnica(HTML) 6 Page - Mitel Networks Corporation |
6 / 12 page 6 SL1710 I & Q OUTPUTS The I and Q output stages of the SL1710 are sensitive to the loads connected to them. To avoid degrading the output signals resistive loads connected to these pins should always be 1K Ω or greater with a parallel capacitance of 15pF or less For evaluation purposes this makes the output unsuitable for connection to test equipment via normal coaxial cables. To alleviate this problem the application board is fitted with emitter follower buffer amplifiers which allow the connection of loads as low as 50 Ω via coaxial cables without loading the output stages of the SL1710. These buffer amplifiers can be either connected in circuit, or bypassed by changing the position of Links 1 and 2. This technique may be used in a real application where the SL1710 is used to drive and ADC via an anti-alias filter. Great care must be taken to ensure that the loading conditions stated above are not exceeded when designing the anti-alias filter section. Use of an emitter follower buffer is the easiest way to alleviate this constraint. With the AGC voltage adjusted to 2.5 Volts apply an input signal to the IF IN (pin 5) and monitor the Base Band output level at the I and Q outputs. Adjust the RF input level until an output level of 760mV pk-pk is achieved. For best performance this level should not exceeded. 15pF PRESCALER OUTPUT Vcc 2 2K Fig.5 Maximum prescaler output load |
Codice articolo simile - SL1710 |
|
Descrizione simile - SL1710 |
|
|
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 |