AD1819B
Analog I/O
These signals connect the AD1819B component to analog sources and sinks, including microphones and speakers.
Pin Name
LQFP
I/O
Description
PC_BEEP
PHONE_IN
AUX_L
12
13
14
15
16
17
18
19
20
21
22
23
24
35
36
37
I
I
I
I
I
I
I
I
I
I
I
I
PC Beep. PC Speaker Beep Pass-Through
Phone. From Telephony Subsystem Speakerphone or Handset
Auxiliary Input Left Channel
Auxiliary Input Right Channel
Video Audio Left Channel
AUX_R
VIDEO_L
VIDEO_R
CD_L
CD_GND
CD_R
Video Audio Right Channel
CD Audio Left Channel
CD Audio Analog Ground Sense for Differential CD Input
CD Audio Right Channel
Microphone 1. Desktop Microphone Input
Microphone 2. Second Microphone Input
Line In Left Channel
Line In Right Channel
Line Out Left Channel
Line Out Right Channel
Monaural Output to Telephony Subsystem Speakerphone
MIC1
MIC2
LINE_IN_L
LINE_IN_R
LINE_OUT_L
LINE_OUT_R
MONO_OUT
I
O
O
O
Filter/Reference
Pin Name
LQFP
I/O
Description
VREF
27
28
29
30
31
32
33
34
O
O
O
O
O
O
O
I
Voltage Reference Filter
VREFOUT
AFILT1
AFILT2
FILT_R
FILT_L
RX3D
Voltage Reference Output 5 mA Drive (Intended for Mic Bias)
Antialiasing Filter Capacitor—ADC Right Channel
Antialiasing Filter Capacitor—ADC Left Channel
AC-Coupling Filter Capacitor—ADC Right Channel
AC-Coupling Filter Capacitor—ADC Left Channel
3D Phat Stereo Enhancement—Capacitor
CX3D
3D Phat Stereo Enhancement—Capacitor
Power and Ground Signals
Pin Name
LQFP
I/O
Description
DVDD1
DVSS1
DVSS2
DVDD2
AVDD1
AVSS1
AVDD2
AVSS2
1
4
7
9
25
26
38
42
I
I
I
I
I
I
I
I
Digital VDD—5.0 V
Digital GND
Digital GND
Digital VDD—5.0 V
Analog VDD—5.0 V
Analog GND
Analog VDD—5.0 V
Analog GND
No Connects
Pin Name
LQFP
I/O
Description
NC
NC
NC
NC
NC
39
40
41
43
44
No Connect
No Connect
No Connect
No Connect
No Connect
REV. 0
–9–
ADI [ ADI ]
