LA8519M Datasheet, PDF (19/29 Pages) Sanyo Semicon Device – I/O Switch/Voice Signal-Processing IC for Cordless Telephones

LA8519M
• Receiver amplifier application circuits
(1) When a dynamic receiver is used (Values shown are for reference purposes only.)
Due to drive capacity considerations,
a 300 Ω resistor must be inserted in series.
300Ω
0.47µF
+ ^10µF
330pF
6.2kΩ
38
RV-OUT2
100kΩ
37
36
RV-OUT1
RV-NF
A13126
(2) When a ceramic receiver is used (Values shown are for reference purposes only.)
0.47µF
330pF
6.2kΩ
• Receiver attenuator
38
RV-OUT2
100kΩ
37
36
RV-OUT1
RV-NF
A13127
RV-OUT2
38
RV-OUT1
37
RV-NF
36
ATT
SW4
A13128
Normally, the receiver attenuator is set to –6 dB. It can be set to 0 dB by setting address 7E to the on state with a
serial data transfer.
No. 6471-19/29