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AD1816

SoundPort® Controller

Analog Devices 

AD1816A

PIN FUNCTION DESCRIPTIONS

Analog Signals (All Inputs must be AC-Coupled)

Pin Name

PQFP TQFP I/O Description

MIC

44 42

L_LINE

42 40

R_LINE

41 39

L_SYNTH 46 44

R_SYNTH 45 43

L_CD

48 46

R_CD

47 45

L_VID

32 30

R_VID

31 29

L_OUT

30 28

R_OUT

29 27

PHONE_IN 43 41

PHONE_OUT 28 26

RX3D

26 24

CX3D

27 25

I Microphone Input. The MIC input may be either line-level or –20 dB from line-level (the

difference being made up through a software controlled 20 dB gain block). The mono MIC

input may be sent to the left and right channel of the ADC for conversion, or gained/

attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then summed with left and right

line OUT before the Master Volume stage.

I Left Line-Level Input. The left line-level input may be sent to the left channel of the ADC;

gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then summed with left line

OUT (L_OUT).

I Right Line-Level Input. The right line-level input may be sent to the right channel of the

ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then summed with

right line OUT (R_OUT).

I Left Synthesizer Input. The left MIDI upgrade line-level input may be sent to the left

channel of the ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then

summed with left line OUT (L_OUT).

I Right Synthesizer Input. The right MIDI upgrade line-level input may be sent to the right

channel of the ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then

summed with right line OUT (R_OUT).

I Left CD Line-Level Input. The left CD line-level input may be sent to the left channel of

the ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then summed

with left line OUT (L_OUT).

I Right CD Line-Level Input. The right CD line-level input may be sent to the right channel

of the ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then summed

with right line OUT (R_OUT).

I Left Video Input. The left audio track for a video line-level input may be sent to the left

channel of the ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and then

summed with left line OUT (L_OUT).

I Right Video Input. The right audio track for a video line-level input may be sent to the

right channel of the ADC; gained/attenuated from +12 dB to –34.5 dB in 1.5 dB steps and

then summed with right line OUT (R_OUT).

O Left Output. Left channel line-level post-mixed output. The final stage passes through the

Master Volume block and may be attenuated 0 dB to –45 dB in 1.5 dB steps.

O Right Output. Right channel line-level post-mixed output. The final stage passes through

the Master Volume block and may be attenuated 0 dB to –45 dB in 1.5 dB steps.

I Phone Input. Line-level input from a DAA/modem chipset.

O Phone Output. Line-level output from a DAA/modem chipset.

O Phat Stereo Phase Expander filter network, resistor pin.

I Phat Stereo Phase Expander filter network, capacitor pin.

REV. A

–11–

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