IDT92HDW74D15PRGXC1X8 IDT, Integrated Device Technology Inc, IDT92HDW74D15PRGXC1X8 Datasheet - Page 23
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IDT92HDW74D15PRGXC1X8
Manufacturer Part Number
IDT92HDW74D15PRGXC1X8
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 IDT92HDW74D15PRGXC1X8
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
92HDW74D15PRGXC1X8
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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
1.4.13. Digital Microphone Support
The digital microphone interface permits connection of a digital microphone(s) to the CODEC via the
DMIC0, DMIC1, and DMIC_CLK 3-pin interface. The DMIC0 and DMIC1 signals are inputs that carry
individual channels of digital Mic data to the ADC. In the event that a single microphone is used, the
data is ported to both ADC channels.
The DMIC_CLK output is controllable from 4.704Mhz, 3.528Mhz, 2.352Mhz, 1.176Mhz and is syn-
chronous to the 24Mhz internal clock. The default frequency is 2.352Mhz.
The two DMIC data inputs are reported as two stereo input pin widgets that incorporate a boost
amplifier. The pin widgets are shown connected to the ADCs through the same multiplexors as the
analog ports. Although the internal implementation is different between the analog ports and the dig-
ital microphones, the functionality is the same. In most cases, the default values for the DMIC clock
rate and data sample phase will be appropriate and an audio driver will be able to configure and use
the digital microphones exactly like an analog microphone.
92HDW74D supports the following digital microphone configurations:
CODEC
CODEC
Audio R
Audio R
Audio L
Audio L
EAPD
EAPD
Figure 5. EAPD
OR
23
SHUTDOWN
MUTE
Input R
Input R
Input L
Input L
SPKR R+
SPKR L+
SPKR R+
SPKR L+
SPKR R-
SPKR L-
SPKR R-
SPKR L-
92HDW74D
PC AUDIO
V 1.0 03/08
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