Cirrus Logic CDB42448 - Manual (Page 29)

CDB42448
DS648DB2 29
JUMPER PURPOSE POSITION FUNCTION SELECTED
J1 Selects source of voltage for the VA supply +3.3V
*+5V
Voltage source is +3.3 V regulator
Voltage source is +5 V regulator
AIN1-
(J26)
Selects the negative leg of the single-ended to
differential input circuit in differential mode, or a
VA/2 bias in single-ended mode.
*DIFF IN
SINGLE IN
Inverted signal from AIN1 input
VA/2 voltage bias
AIN2-
(J23)
Selects the negative leg of the single-ended to
differential input circuit in differential mode, or a
VA/2 bias in single-ended mode.
*DIFF IN
SINGLE IN
Inverted signal from AIN2 input
VA/2 voltage bias
AIN3-
(J19)
Selects the negative leg of the single-ended to
differential input circuit in differential mode, or a
VA/2 bias in single-ended mode.
*DIFF IN
SINGLE IN
Inverted signal from AIN3 input
VA/2 voltage bias
AIN4-
(J16)
Selects the negative leg of the single-ended to
differential input circuit in differential mode, or a
VA/2 bias in single-ended mode.
*DIFF IN
SINGLE IN
Inverted signal from AIN4 input
VA/2 voltage bias
J29-J36
J39-J46 Selects between an active or a passive analog
output filter for AOUT1-8.
*A
P
2-Pole Active Filter
Single-Pole Passive Filter
*Default factory settings
Table 10. Jumper Settings