IDT92HD91B1X5NLGXYAX8 IDT, Integrated Device Technology Inc, IDT92HD91B1X5NLGXYAX8 Datasheet - Page 40
IDT92HD91B1X5NLGXYAX8
Manufacturer Part Number
IDT92HD91B1X5NLGXYAX8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.IDT92HD91B1X5NLGXYAX8.pdf
(298 pages)
Specifications of IDT92HD91B1X5NLGXYAX8
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92HD91
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
IDT™ CONFIDENTIAL
2.26.3. “Playback Path” Port Behavior (AnaIog I/O)
2.26.4. When Port E presence detect = 0
2.26.5. When Port E presence detect = 1
EAPD
(pin)
0
1
1
1
1
1
1.default value for Aux Audio Enable is determined by bond option.
Port F (“dock microphone”) input is routed to Port D (“internal speakers”), Ports B (system head-
phone port), and Port E (“dock Line Out”) directly. The analog mixer is disabled to reduce power con-
sumption.
•
•
•
•
•
•
•
•
•
•
•
Support
Enable
Aux
NA
Presence detect for Port E = 0 (nothing plugged in)
If Port B is in use (port presence detect = 1), Port D, internal speakers, will be inactive (off)
The power supply (charge pump) for B will be inactive if B is not in use.
If Port B is not in use (port presence detect = 0), Port D, internal speakers, will be active and port
B will be inactive.
EAPD must not be forced low due to the dock being absent or high when a dock is present.
EAPD is used to indicate if AUX Audio Mode is in use.
Presence detect for Port E = 1 (something plugged in)
Port D is disabled
If Port B is in use (port presence detect = 1), that port will be enabled and output the audio enter-
ing Port F
The power supply for port B will be active if port B is in use.
If Port B is not in use (port presence detect = 0), port B will be inactive and the audio on Aux_In
will be mixed with the audio from the Secondary Audio input and routed to Port E, the dock
headphone jack.
EAPD must not be forced low due to the dock being absent or high when a dock is present.
EAPD is used to indicate if AUX Audio Mode is in use.
0
1
1
1
1
1
Port E
detect
NA
NA
0
0
1
1
Port B
detect
NA
NA
0
1
0
1
Port A, C, F,
detect
DMIC
NA
NA
NA
NA
NA
NA
40
Widget controlled
behavior
disabled
disabled
disabled
disabled
enabled
(F to D)
Port D
Widget controlled
behavior
disabled
disabled
disabled
enabled
enabled
(F to B)
(F to B)
Port B
Widget controlled
Aux+Secondary
disabled (mute)
disabled (mute)
disabled (mute)
disabled (mute)
behavior
enabled
Port E
V 0.91 10/10
92HD91
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