austriamicrosystems AS3542, Manual, Page: 7 / 86

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AS3542 3v2
Data Sheet, Strictly Confidential - P i n o u t
15 VSSPWR GND
Power Management Neg. Supply Terminal
16 PWRUP DIG IN
Power Up Input
17 FVDD SUP IN Digital Pos. Supply (e.g. DAC, …)
18 XRES DIG OUT Reset Output
19 XIRQ DIG OUT Interrupt Request Output
20 PWGD DIG IO
PowerUp Sequence Complete Output
21 MCLK DIG IN MCLK input
22 SCLK DIG IN
I2S Shift Clock Input
23 LRCK DIG IN
I2S Frame Clock Input
24 SDI DIG IN
I2S Data Input to DAC
25 DVSS GND Digital Circuit Neg. Supply Terminal
26 DVDD SUP IN
Digital Periphery Pos. Supply
27 SDO DIG OUT I2S Data Output from ADC
28 CSCL DIG IN
2 wire SERIF Clock Input
29 CSDA DIG IO 2 wire SERIF Data I/O
30 VDD ANA IO
LDO output, supply input
31 AVDD27 SUP IN
Analog Pos. Supply
32 AVDD17 SUP IN
Audio Pos. Supply
33 VREF ANA IO DAC Reference Pin
34 VPRG2 ANA IN
Memory Supply Voltage Definition Pin
35 VPRG3 ANA IN
PowerUp Sequence Definition Pin
36 AVSS GND
Ground (analog)
37 AGND ANA IO Analog Common Mode Voltage Pin
38 MICP ANA IN
Microphone Input
39 MICS ANA IO
Microphone Supply Output / Remote Control input
40 LOGND ANA IO
Line Output Common Mode Voltage Pin
41 LIOR ANA IO Analog Line Input 1 Right Channel
42 LIOL ANA IO
Analog Line Input 1 Right Channel
43 HPVDD SUP IN
Headphone Supply default 1.8V (max. 3.6V)
44 HPL ANA OUT Headphone Output Left Channel
45 HPVSS GND Headphone Ground
46 HPR ANA OUT Headphone Output Right Channel
47 HPVDD SUP IN
Headphone Supply default 1.8V (max. 3.6V)
48 HPGND ANA IO
Headphone Common Mode Voltage Pin
49 VDD17 SUP IO LDO1 Output default 1.7V
50 VDD17IN SUP IN
LDO1 Pos. Supply Terminal
51 VDD27 SUP IO
LDO2 Output default 2.7V
52 BVDD SUP IN
Main Battery Supply Input (2.7-5.5V)
Table 2. Pin Description for AS3542
Pin Number Pin Name Type Description