Cirrus Logic CDB53L21 - Manual (Page 21)

DS700DB1 21
CDB53L21
JMP LABEL PURPOSE POSITION FUNCTION SELECTED
J31 VL
Selects source of voltage for
the VL supply
*+1.8V Voltage source is +1.8 V regulator.
+2.5V Voltage source is +2.5 V regulator.
+3.3V Voltage source is +3.3 V regulator.
J25 VA
Selects source of voltage for
the VA supply
*+1.8V Voltage source is +1.8 V regulator.
+2.5V Voltage source is +2.5 V regulator. .
J28 VD
Selects source of voltage for
the VD supply
*+1.8V Voltage source is +1.8 V regulator.
+2.5V Voltage source is +2.5 V regulator. .
J52
J47
J53 VL
VA
VD
Current Measurement
*SHUNTED 1 Ω series resistor is shorted.
OPEN
1
Ω series resistor in power supply path.
J2 LINEB MUX
Selects signal source for the
ADC I/O
(AIN3B
Select)
LINEB signal routed to jumper J8.
(AIN2B
Select)
LINEB signal routed to jumper J3.
*AIN1B LINEB signal routed to AIN1B of ADC.
J1 LINEA MUX
Selects signal source for the
ADC I/O
(AIN3A
Select)
LINEA signal routed to jumper J14.
AIN2A LINEA signal routed to AIN2A of ADC.
*AIN1A LINEA signal routed to AIN1A of ADC.
J3
(AIN2B
Select)
Selects signal source for MIC1
and MIC2 bias or signal source
for the ADC input
BIAS1 to
MIC2
Bias on AIN2B of ADC routed to jumper J12.
BIAS1 to
MIC1
Bias on AIN2B of ADC routed to MIC1.
*LINEB LINEB MUX routed to AIN2B of ADC.
J8
(AIN3B
Select)
Selects signal source for MIC2
bias or signal source for the
ADC input
BIAS2 to
MIC2
Bias on AIN3B of ADC routed to jumper J12.
MIC2 MIC2 signal routed to AIN3B of ADC.
*LINEB LINEB MUX routed to AIN3B of ADC.
J14
(AIN3A
Select)
Selects signal source for the
ADC input
MIC2 MIC2 signal routed to AIN3A of ADC.
MIC1 MIC1 signal routed to AIN3A of ADC.
*LINEA LINEA MUX routed to AIN3A of ADC.
J12 MIC2 Bias Selects bias for MIC2
BIAS1 J3 (for Bias on AIN2B of ADC) routed to MIC2.
BIAS2 J8 (for Bias on AIN3B of ADC) routed to MIC2.
*Not con-
nected
Jumper placed on pin 2.
*Default factory settings
Table 4. Jumper Settings