IDT92HD91B1X5NLGXYAX8 IDT, Integrated Device Technology Inc, IDT92HD91B1X5NLGXYAX8 Datasheet - Page 26

• 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
D3cold
Power
State
AFG
D2
D3
D3
D4
D5
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
RESET#
Figure 3. HP EAPD Example to be replaced by single pin for internal amp
(MUTE LED ON
SAME BOARD)
UP/DOWN
BUTTONS
MUTE +
PC_BEEP
Disabled
Enabled
Enabled
Analog
HP AUDIO CONTROL BLOCK DIAGRAM
-
-
-
SCAN
CODES
SYNC FROM KBC TO OS
Table 15. EAPD Behavior
Port Power
D0-D2
D0-D3
D0-D3
State
KBC
-
-
-
26
SYNC FROM AUDIO GUI TO KBC
Active - EAPD Pin high if any port EAPD bit =1 and that port also
Active - EAPD Pin high if any port EAPD bit=1 and that port also
A_EAPD
A_SD
SPKR_EN#
Pin forced low to disable external amp
Pin forced low to disable external amp
Pin forced low to disable external amp
GPIO_1
SPKR AMP
CODEC
OS
enabled as output.
enabled as output.
Pin Behavior
Pin Hi-Z (off)
V 0.91 10/10
92HD91