IDT92HDW74D15PRGXB2X8 IDT, Integrated Device Technology Inc, IDT92HDW74D15PRGXB2X8 Datasheet - Page 14
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IDT92HDW74D15PRGXB2X8
Manufacturer Part Number
IDT92HDW74D15PRGXB2X8
Description
IC AUDIO CODEC HD 8CH 48-TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Audio Codec, HDr
Datasheet
1.IDT92HDW74D15PRGXB2X8.pdf
(259 pages)
Specifications of IDT92HDW74D15PRGXB2X8
Resolution (bits)
24 b
Number Of Adcs / Dacs
2 / 4
Sigma Delta
No
S/n Ratio, Adcs / Dacs (db) Typ
86 / 90
Dynamic Range, Adcs / Dacs (db) Typ
86 / 90
Voltage - Supply, Analog
3.14 V ~ 3.47 V; 3.8 V ~ 4.2 V; 4.28 V ~ 4.73 V; 4.75 V ~ 5.25 V
Voltage - Supply, Digital
3.14 V ~ 3.47 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-TQFP, 48-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
92HDW74D15PRGXB2X8
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EIGHT CHANNEL HD AUDIO CODEC, PREMIUM WLP 3/4 COMPLIANT
92HDW74D
EIGHT CHANNEL HD AUDIO CODEC, PREMIUM WLP 3/4 COMPLIANT
D0-D2
D3
AFG Power
Voltage (+/- 5%)
AVdd Nominal
State
1.4.3.
1.4.4.
4.75V
3.3V
5V
4V
Input Enable
Jack Detect
Plugs inserted to a jack on Ports A, B, C, & D are detected using SENSE_A. Plugs inserted to a jack
on Ports E, F, G, and H are detected using SENSE_B. The following table summarizes the proper
resistor tolerances for different analog supply voltages.
SENSE_C, is different from SENSE_A and SENSE_B. Because SENSE_C only determines the
presence of a plug for the CD port (port I), SENSE_C is a simple digital input pin referenced to the
analog supply. An internal pull-up resistor is provided. No external resistors are needed (jack switch
shorts to ground when a plug is inserted.) If external components are added, or if the pin is driven by
a logic gate, care should be taken to ensure that the pin voltage is above 70% of AVDD when no
plug is in the jack and less than 30% AVDD when a plug is inserted
See reference design for more information on Jack Detect implementation.
SPDIF Output
All SPDIF Outputs can operate at 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4KHz, and 192KHz as
defined in the Intel High Definition Audio Specification with resolutions up to 24 bits. This insures
compatibility with all consumer audio gear and allows for convenient integration into home theater
systems and media center PCs.
A second independant SPDIF Output is provided as an option for WLP compliant HDMI and SPDIF
outputs. Its function is identical to the primary SPDIF output.
Resistor Tolerance
1
1
0
0
0
(If port D used)
SENSE_A
0.50%
0.10%
1%
1%
Output Enable
1
0
1
1
0
Table 3: SENSE Resistor Tolerance
-
Table 2. Analog I/O Port Behavior
(If port D is not used)
Resistor Tolerance
SENSE_A
1%
1%
1%
1%
Mute
0
1
-
-
-
-
14
Inactive - Port keeps coupling caps charged (same
Inactive (lower power) - Port keeps output coupling
Resistor Tolerance
Mute - port enabled as output but drives silence
(If port H used)
caps charged but consumes less power.
SENSE_B
0.50%
0.10%
Not allowed. Port becomes input.
1%
1%
Active - port enabled as output
Active - port enabled as input
92HDW74D
Port Behavior
as mute.)
(If port H is not used)
Resistor Tolerance
SENSE_B
1%
1%
1%
1%
PC AUDIO
V 1.0 03/08
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