Cirrus Logic CDB4353 - Manual (Page 6)

6 DS803DB2
CDB4353
10.BOARD CONNECTIONS AND SETTINGS
Board connections and settings are shown in Table 2 , Table 3 , and Table 4 below.
Table 2. System Connections
Table 3. CDB4353 Jumper Settings
Table 4. CDB4353 Switch Settings
Note: All settings denoted by an asterisk (*) are the Default Factory Settings.
CONNECTOR INPUT/OUTPUT SIGNAL PRESENT
3.3 V - J3 Input +3.3 V power for the evaluation board
GND - J2 Input Ground connection from power supply
SPDIF INPUT - J16 Input Digital audio interface input via coaxial cable
SPDIF INPUT - OPT1 Input Digital audio interface input via optical cable
PCM INPUT - J13 Input Input for master, serial, left/right clocks and serial data
EXT SYS CONN - J4 Input Input for master, serial, left/right clocks and serial data - direct to CS4353
AOUTA - J14
AOUTB - J15
Output
RCA line-level analog outputs
JUMPER PURPOSE POSITION FUNCTION SELECTED
J1
Selects source of voltage for
the VL supply
*shunted
not shunted
Voltage source is +3.3 V binding post (J3)
Voltage source is pin 2 of J1
J8 Current measure for VCP *shunted
When shunt is removed, the voltage can be measured
across a fixed resistance to determine current.
J9 Current measure for VL *shunted
When shunt is removed, the voltage can be measured
across a fixed resistance to determine current.
J10 Current measure for VA *shunted
When shunt is removed, the voltage can be measured
across a fixed resistance to determine current.
J5 CS4353 Reset Select
*EXTERNAL
POR
CS4353 reset by S2
CS4353 uses internal power-on reset
J11 CS4353 Output Reference
*shunted
not shunted
Output reference is board ground
Output reference is J14 and J15 ground
SWITCH PURPOSE POSITION FUNCTION SELECTED
S1
Selects PCM source for
CS4353
1
down = PCM Header J3
*up = CS8416
CS8416 MCLK/LRCK Ratio 2
*down = MCLK is 256xFs
up = MCLK is 128xFs
CS8416 and CS4353 PCM
Format
3
*down = I
2
S
up = LJ
CS4353 Output Amplitude 4
down = 1 V
rms
output
*up = 2 V
rms
output
CS4353 De-emphasis select 5
*down = De-emphasis off
up = De-emphasis on
S2 Resets CS4353 and CS8416 -
CS8416 must be reset if switch S1 position 2 or 3 is
changed