92hdw74c2 Integrated Device Technology, 92hdw74c2 Datasheet - Page 15

• Manufacturer Part Number: 92hdw74c2
• Description: Six Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

SIX CHANNEL HD AUDIO CODEC
D0-D3
D0
D1-D2
D3
92HDW74C2
SIX CHANNEL HD AUDIO CODEC
AFG Power
State
1.4.5.
1.4.6.
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
Asserted (Low)
SPDIF Input
SPDIF IN can operate at 44.1 KHz, 48 KHz, 88.2 KHz or 96 KHz, and implements internal Jack
Sensing.
A sophisticated digital PLL allows automatic rate detection and accurate data recovery. The ability to
directly accept consumer SPDIF voltage levels eliminates the need for costly external receiver ICs.
Advanced features such as record-slot-select and SPDIF_IN routing to the DAC allow for simulta-
neous record and play.
Analog Mixer
An analog mixer is available on the 92HDW74C2. The mixer supports independent gain (-34.5 to
+12dB in 1.5dB steps) on each input as well as independent mutes on each input. A master volume
follows mixing and provides gain from -46.5dB to 0dB in 1.5dB steps.
The following inputs are available:
•
•
•
•
•
•
RESET#
CD
Analog PC_Beep
Inport0_Mux
Inport1_Mux
Inport2_Mux
Inport3_mux
Output Enable
Table 4. SPDIF OUT 0 (Pin 48) Behavior
Disabled
Disabled
Enabled
Enabled
Enabled
Enabled
-
-
Converter Dig
15
Disabled
Enabled
Enabled
Enable
-
-
-
-
-
Stream ID
1-15
0
-
-
-
-
-
-
92HDW74C2
Active - Pin drives SPDIF-format,
Hi-Z (internal pull-down enabled)
Hi-Z (internal pull-down enabled)
Hi-Z (internal pull-down enabled)
Hi-Z (internal pull-down enabled)
retained until the rising edge of
otherwise the previous state is
Active - Pin drives SPDIFOut0
Active - Pin drives 0 (internal
Active - Pin drives 0 (internal
immediately after power on,
data (internal pull-down NA)
but data is zeroes (internal
pull-down NA)
pull-down NA)
pull-down NA)
Pin Behavior
RESET#
PC AUDIO
V 1.0 03/08