Cirrus Logic CDB4349 - Manual (Page 6)

6 DS782DB1
CDB4349
9. BOARD CONNECTIONS AND SETTINGS
Board connections and settings are shown in Table 1 , Table 2 , and Table 3 .
Table 1. System Connections
Table 2. CDB4349 Jumper Settings
*Default Factory Settings.
Table 3. CDB4349 Switch Settings
*Default Factory Settings.
Note:
1. Switch settings take effect in Stand-Alone Mode only.
CONNECTOR INPUT/OUTPUT SIGNAL PRESENT
GND Input Ground connection from power supply
+12V Input +12 V positive supply for the on-board filtering
-12V Input -12 V negative supply for the on-board filtering
S/PDIF IN - J1 Input Digital audio interface input via coax
S/PDIF IN - OPT1 Input Digital audio interface input via optical
PCM INPUT - J10 Input Input for master, serial, left/right clocks and serial data
POUTA, POUTB Output RCA line level analog outputs from passive output stage
JUMPER PURPOSE POSITION FUNCTION SELECTED
J3, J4, J7
Selects Supply Voltage for
CS4349
+5V
*+3.3V
Supplies +5.0 V to associated CS4349 supply
*Supplies +3.3 V to associated CS4349 supply
J38 Selects source of control data
*PC CONTROL
shunts removed
*Control from PC and on-board microcontroller
External control input using center and right columns
J27 C2 micro programming - Reserved for factory use only
SWITCH
(Note 1) PURPOSE POSITION FUNCTION SELECTED
S2 Resets CS8416 and CS4349 The CS8416 must be reset if switch S1 is changed
S1
CS8416 Format Select
SFSEL[1:0]
1, 2
Default: SFSEL[1:0] = 00 (Closed). See CS8416 datasheet
for details.
S4
CS4349 Format Select
DIF[2:0]
1, 2, 3
Default: DIF[2:0] = 000 (Closed). See CS4349 datasheet
for details.
CS4349 De-emphasis Select 4
open = De-emphasis enabled
*closed = De-emphasis disabled.
CS4349 Popguard
®
Enable 5
open = Popguard enabled
*closed = Popguard disabled.
Selects PCM source for
CS4349
6
*open = CS8416
closed = PCM Header J10