AD1815JS 데이터 시트보기 (PDF) - Analog Devices

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AD1815JS

SoundComm Controller

Analog Devices 

Analog Signals

Pin Name

PQFP I/O

MDM_IN

42

I

MIC

41

I

L_LINE

40

I

R_LINE

39

I

L_SYNTH

46

I

R_SYNTH

45

I

L_CD

44

I

R_CD

43

I

L_VID

48

I

R_VID

47

I

L_OUT

55

O

R_OUT

54

O

MDMN_OUT 57

O

MDMP_OUT 56

O

MONO_IN

53

I

PIN DESCRIPTIONS

AD1815

Description

Modem Input mono telephony signal from DAA. The input may be sent to the right chan-

nel of the ADC if the AD1815 is in modem mode; gained or attenuated from +12 dB to

–34.5 dB in 1.5 dB steps and then summed with left and right line out (L_OUT and

R_OUT).

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 (L_OUT and R_OUT), before the Master Volume stage.

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).

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).

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).

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).

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).

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

nel 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).

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).

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).

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.

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.

Differential Modem Output Negative.

Differential Modem Output Positive.

Mono Line-Level Input.

REV. 0

–11–

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