IDT92HD91B1X5NLGXYAX8 IDT, Integrated Device Technology Inc, IDT92HD91B1X5NLGXYAX8 Datasheet - Page 41

• Manufacturer Part Number: IDT92HD91B1X5NLGXYAX8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT92HD91B1X5NLGXYAX8

• Lead Free Status / RoHS Status: Compliant

92HD91
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
IDT™ CONFIDENTIAL
D-MIC
SPKR
MIC
HP
NA
2.26.6. “Record Path” Port Behavior (Analog I/O)
2.26.7. SYSTEM DIAGRAMS (Analog I/O)
EAPD
(pin)
1.default value for Aux Audio Enable is determined by bond option.
0
1
1
1
1
Figure 12. Aux Audio Playback When Nothing Plugged In (or System is not Docked)
DM
Support
Enable
A
Digital Microphone input DMIC0 is used as an internal microphone port in normal mode. The Digital
Microphone clock pin is enabled in Aux Audio Mode and the digital microphone clock is provided by
an internal oscillator.
If Port F and Port A presence detect = 0, this indicates that nothing is plugged into the dock or sys-
tem; the digital microphone input is converted to analog and sent to the Aux Audio Module through
Port E. If Port A presence detect = 1, this indicates that an external microphone is plugged into the
system jack and port A is sent to the Auxiliary Audio Module through Port E. If Port F presence
detect = 1 (and Port A presence detect = 0), this indicates that an external microphone is plugged
into the dock. External circuitry routes the dock microphone to the Auxiliary Audio Module.
B
D
C
Aux
X
0
1
1
1
1
DAC
EQ
S
D MIc0
detect
Playback Speaker
X
X
0
1
X
S
Port A
detect
X
X
0
0
0
HD Audio Interface
detect
Port F
Filter
Beep
PC
X
X
0
0
1
Ports B, C, E
41
detect
NA
NA
NA
NA
NA
EC
S
Dock Mic routed to module (not through CODEC)
E
through port E. DMIC Clock provided by CODEC
DMIC converted to analog and routed to module
F
CODEC DMIC interface and Port A disabled
CODEC
I2S
Aux_Out behavior
Widget controlled
Aux Audio
Module
Routing
disabled
I2S
Mute
Dock
MIC
HP
V 0.91 10/10
92HD91