AD1988B データシートの表示（PDF） - Analog Devices
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AD1988B Datasheet PDF : 20 Pages
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CLARIFICATION OF OUTPUT CONFIGURATIONS
DAC, ADC, and port assignments are arbitrary; however, ports
are optimized for certain configurations. Use the guidelines in
Table 7, Table 8, and Table 9 when selecting ports for particular
functions. Note the following for each of these tables:
• HP is the output capable of driving headphone load and
power
• MIC is input that supports microphones with MIC Bias
and boost amplifiers
• LO is the line level output
• LI is the line level input
In desktop applications with discreet jacks (the default
configuration), assign the ports as listed in Table 7.
Table 7. Discreet Jacks (Default Configuration)
Port
Function
HP MIC LO LI
PORT-A
Front Panel Headphone x x x x
PORT-B
Front Panel Microphone x x x x
PORT-C
Rear Panel Line-In
x xx
PORT-D
Rear Panel
Front/Headphone
x x xx
PORT-E
Rear Panel Microphone
x xx
PORT-F
Rear Panel Surround-Rear
(5.1)
x xx
PORT-G
Rear Panel C/LFE
xx
PORT-H
Rear Panel Surround-
Center/Side (7.1)
xx
MONO_OUT Internal Mono Speaker
x
(use GPIO as EAPD)
AD1988A/AD1988B
In desktop applications with shared input/5.1 jacks, assign the
ports as listed in Table 8.
Table 8. Shared Input/5.1 Jacks
Port
Function
PORT-A
Front Panel Headphone
PORT-B
Front Panel Microphone
PORT-C
Rear Panel Line-
In/Surround-Rear (5.1)
PORT-D
Rear Panel
Front/Headphone
PORT-E
Rear Panel
Microphone/C/LFE
MONO_OUT Internal Mono Speaker
(use GPIO as EAPD)
HP MIC LO LI
x x xx
x x xx
x xx
x x xx
x xx
x
In notebook applications, to support fully retasking jacks, assign
the ports as listed in Table 9.
Table 9.
Port
PORT-A
PORT-B
PORT-D
PORT-C
PORT-E/PORT-F
Function
Headphone Jack
Microphone Jack
Line-In Jack
Internal Stereo
Speakers (use GPIO as
EAPD)
Internal Quad
Microphone Array
(Optional)
HP MIC LO LI
x x xx
x x xx
x x xx
x xx
x xx
Rev. 0 | Page 11 of 20
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