Cirrus Logic CDB42L56 - Manual (Page 19)

19 DS851DB1
CDB42L56
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.
+1.8VB Voltage source is +1.8 V from battery.
EXT. VL Voltage source from TP18.
J36 VCP
Selects source of voltage for the
VCP supply
*+1.8V Voltage source is +1.8 V regulator.
+2.5V Voltage source is +2.5 V regulator.
+1.8VB Voltage source is +1.8V from battery.
EXT. VCP Voltage source from TP17.
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.
+1.8VB Voltage source is +1.8 V from battery.
EXT. VA Voltage source from TP5.
J28 VLDO
Selects source of voltage for the
VLDO supply
*+1.8V Voltage source is +1.8 V regulator.
+2.5V Voltage source is +2.5 V regulator.
+1.8VB Voltage source is +1.8 V from battery.
EXT. VLDO Voltage source from TP8.
J52
J74
J53
J48 VLDO
VA
VL
VCP
Current Measurement
*SHUNTED 1 series resistor is shorted.
OPEN 1  series resistor in power supply path.
J11 Shunt to RCA Provides RCA reference to GND
*SHUNTED
AIN2REF and RCAs for AIN2A and AIN2B given
a board ground reference.
OPEN
AIN2REF is given AIN2A and AIN2B ground ref-
erence on RCA shield.
J7 Shunt to RCA Provides RCA reference to GND
*SHUNTED
AIN1REF and RCAs for AIN1A and AIN1B given
a board ground reference.
OPEN
AIN1REF is given AIN1A and AIN1B ground ref-
erence on RCA shield.
J5 1.8 V Buck Input
Selects power supply source for
+1.8VB
1 - 2 1.8VB is derived from external input TP6.
*2 - 3 1.8VB is derived from AAA batteries.
J19 AIN3A/AIN1REF Input
Selects input source for pin
AIN3A/AIN1REF
*1 - 2 AIN3A/AIN1REF is given AIN3A input.
2 - 3
AIN3A/AIN1REF is given AIN1 ground reference
as input.
J20 AIN3B/AIN2REF Input
Selects input source for pin
AIN3B/AIN2REF
*1 - 2 AIN3B/AIN2REF is given AIN3B input.
2 - 3
AIN3B/AIN2REF is given AIN2 ground reference
as input.
J6
SHUNT TO APPLY
MICBIAS
Selects MICBIAS for analog inputs
1 - 3 MICBIAS applied to AIN1A.
2 - 4 MICBIAS applied to AIN1B.
5 - 6 MICBIAS applied to AIN2A.
7 - 8 MICBIAS applied to AIN2B.
9 - 10 MICBIAS applied to AIN3A.
11 - 12 MICBIAS applied to AIN3B.
J12 HPOUTA Selects test load from HPOUTA
1 - 2 32 load selected for HPOUTA.
*2 - 3 16 load selected for HPOUTA.
J4 HPOUTB Selects test load from HPOUTB
1 - 2 32 load selected for HPOUTB.
*2 - 3 16 load selected for HPOUTB.
Table 3. Jumper Settings
F
i
10