Os motores de busca de Datasheet de Componentes eletrônicos |
|
LA75520K Folha de dados(PDF) 10 Page - Sanyo Semicon Device |
|
LA75520K Folha de dados(HTML) 10 Page - Sanyo Semicon Device |
10 / 12 page LA75520K No.A0648-10/12 Continued from preceding page. Pin No. Pin name Function Equivalent Circuit 12 AFT OUTPUT AFT output pin. The AFT center voltage is generated by an external bleeder resistor. The AFT gain is increased by increasing the resistance of this external bleeder resistor. For the resistor we recommend a resistance equal to or greater than 22k Ω. For the filter C1 we recommend a capacitance of 0.1 μF. 12 R R C1 13 1st SIF INPUT First SIF input pin. A DC cut capacitor must be used in the input circuit. (a) If a SAW filter is used : The first SIF sensitivity can be increased by inserting an inductor between the SAW filter and the IC to neutralize the SAW filter output capacitance and the IC input capacitance. (b) When used in an intercarrier system : Connect this pin to ground. 13 2k Ω 14 RF AGC OUTPUT RF AGC output pin. This output controls the tuner RF AGC. This is the open collector output and a protective 200 Ω resistor is inserted. Determine the external bleeder resistor value in accordance with the specifications of the tuner. 14 200 Ω VCC 15 AFT MUTE LEVEL A switch pin for selecting the mute potential when muting is applied to the AFT due to PLL unlock, etc. At the same time, it is used to control the trap point shift of the audio trap (in the B/G mode). When the frequency characteristics of the video band are to be made as flat as possible with the split input, the trap can be shifted to the high range although the attenuation of the sound carrier will drop. Therefore, when used in combination with the SAW filter, verify that the level is high enough before use. Voltage ATF MUTE Voltage TRAP SHIFT VCC to 4V VCC/2 0 4V to 2.5V VCC/2 +250kHz 2.5V to 1V VCC 0 1V to GND VCC +250kHz * When VCC = 5 V 15 66k Ω 34k Ω Continued on next page. |
Nº de peça semelhante - LA75520K |
|
Descrição semelhante - LA75520K |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |