Cirrus Logic CRD42L51 - Manual (Page 7)

DS679RD1 7
CRD42L51
4. SYSTEM CONNECTIONS & INTERFACE
Connector/
Interface
Reference
Designator Input/Output Description
AAA BT1 Input Battery Power Supply.
< SELECT S3 Input
Pushbutton for navigating to the left or upwards. On/Off (function enable/dis-
able) control when pushed simultaneously with SELECT >.
SELECT > S4 Input
Pushbutton for navigating to the right or downwards. On/Off (function
enable/disable) control when pushed simultaneously with < SELECT.
- ADJUST S1 Input
Pushbutton for decreasing volume levels and increasing threshold levels.
On/Off (beep enable/disable) control when pushed simultaneously with
ADJUST +.
ADJUST + S2 Input
Pushbutton for increasing volume levels and decreasing threshold levels.
On/Off (beep enable/disable) control when pushed simultaneously with
ADJUST +.
Line Input J1 Input 1/8” jack for analog input signal to CS42L51. Up to 2 Vrms signals allowed.
MIC MK1 Input Microphone for analog input signal to CS42L51.
Headphone J2 Output Headphone or Line-level jack for analog outputs.
S/PDIF IN OPT1 Input CS8416 digital audio input via optical cable.