92HD66B IDT [Integrated Device Technology], 92HD66B Datasheet - Page 12

• Manufacturer Part Number: 92HD66B
• Description: FOUR CHANNEL HD AUDIO CODECS
• Manufacturer: IDT [Integrated Device Technology]

92HD66B
FOUR CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
D3
D3cold
D4
D5
Power
State
AFG
2.2.
2.3.
Enable
Vref_Out
Jack Detect
Input
1
1
0
0
0
1
1
0
0
0
-
-
-
Output
Enable
Ports A, B, C, & E (48-pin package only) support Vref_Out pins for biasing electret cartridge micro-
phones. Settings of 80% AVDD, 50% AVDD, GND, and Hi-Z are supported. Attempting to program a
pin widget control with a reserved or unsupported value will cause the associated Vref_Out pin to
assume a Hi-Z state and the pin widget control Vref_En field will return a value of ‘000’ (Hi-Z) when
read.
Plugs inserted to a jack are detected using SENSE inputs as described in the tables below. Per
HDA015-B, the detection circuit operates when the CODEC is in D0 - D3 and can also operate if
both the CODEC and Controller are in D3 (no bus clock.) Jack detection requires that all supplies
(analog and digital) are active and stable. When AVDD is not present, the value reported in the pin
widget is invalid.
0
0
1
1
0
1
0
1
1
0
-
-
-
currently used by DAC, mixer,
currently used by DAC, mixer,
DAC/Mixer
mixer, beep, and is cap-less
mixer, beep, and is cap-less
beep, or is traditional line or
beep, or is traditional line or
output for
not currently used by DAC,
not currently used by DAC,
Used as
NA
NA
NA
NA
NA
NA
headphone output
headphone output
headphone output
headphone output
Table 2. Analog Output Port Behavior
output for
PC_Beep
Used as
analog
NA
NA
NA
NA
NA
NA
12
ADC, mixer
Don’t care
Don’t care
Don’t care
Don’t care
Don’t care
input for
Used as
Yes
NA
NA
No
Active - Port enabled as input
Inactive (Power Down) - Port keeps output
coupling caps charged if port uses caps.
Active - Port enabled as output
Inactive (Power Down)
Inactive (Power Down) - Port keeps output
coupling caps charged if port uses caps.
Inactive (Power Down) - Port keeps output
coupling caps charged if port uses caps.
Low power state. If enabled, Beep will output
from the port
Inactive (Power Down)
Inactive (Power Down) - Port keeps output
coupling caps charged if port uses caps.
Inactive (Power Down) - Port keeps output
coupling caps charged if port uses caps.
Inactive (Power Down) - Port keeps output
coupling caps charged if port uses caps.
Off - Charge on coupling caps (if used) will
not be maintained.
Not allowed. Port is active as Input.
Port Behavior
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92HD66B