Pin Description
Pin No.
Pin name
1 R.F REF
(Ripple Filter)
Pin voltage
[V]
5.5
LA4820M
* When the pin voltage is for VCC1 = 6.0 V
Internal equivalent circuit
Remarks
c LPF pin for ripple filter
reference bias.
c Ripple rejection ratio can be
adjusted through an external
capacitor.
c Open when no ripple filter is
needed.
2 PWR MUTE
1.2
c Power mute is turned on
when pin 2 is pulled down.
c Turns on and off supply of
constant current to the power
block.
3 MONO IN
2.8
c BTL power input pin.
c Input resistance 9 kΩ.
4 MIX OUT
2.8
5 IN1
2.8
6 IN2
c IN1 and IN2 addition output
pin.
c Output resistance 5 kΩ.
c Power input pins.
c Input resistance can be
varied between 14 kΩ and
4 kΩ by ALC.
Continued on next page.
No.5205-7/20