Cirrus Logic CRD42L52 - Manual (Page 18)

18 DS680RD1
CRD42L52
6. SYSTEM CONNECTIONS & INTERFACE
On CDB42LDB1:
On CRD42L52:
Connector/
Interface
Reference
Designator
Input/
Output Description
AAA
BT1
BT2
BT3
Input Battery Power Supply.
Power Supply Switch S1 Input
Switch that selects which power supply is used by the CDB42LDB1 and the
CRD42L52.
External Power J1 Input +5 V - +2.7 V external power supply.
USB J2 Input/Output USB connection to PC for I²C control port signals.
S/PDIF OPTICAL OUT J7 Output CS8406 digital audio output via optical cable.
S/PDIF COAX OUT J9 Output CS8406 digital audio output via coaxial cable.
S/PDIF OPTICAL IN J6 Input CS8416 digital audio input via optical cable.
S/PDIF COAX IN J8 Input CS8416 digital audio input via coaxial cable.
MICRO JTAG J5 Input/Output I/O for programming the micro controller (U3).
MICRO RESET S4 Input Reset for the micro controller (U3).
I/O Header J3 Input/Output
I/O routing between CDB42LDB1 and CRD42L52 containing Control Port
and Serial Audio Clock and Data .
Connector/
Interface
Reference
Designator
Input/
Output Description
Line Input J7 Input Stereo jack for line level input signal to analog input channel 1 on CS42L52.
Headphones J8 Output Stereo jack for monitoring stereo headphone output from CS42L52.
SPEAKER LEFT
SPEAKER RIGHT
J3
J4
Output
Screw Terminals for monitoring differential stereo speaker output from
CS42L52.
I/O Header J5 Input/Output
I/O routing between CDB42LDB1 and CRD42L52 containing Control Port
and Serial Audio Clock and Data .