IDT92HD005XX5NLGXB2X IDT, Integrated Device Technology Inc, IDT92HD005XX5NLGXB2X Datasheet - Page 14

• Manufacturer Part Number: IDT92HD005XX5NLGXB2X
• Description: IC AUDIO CODEC HD 4CH 48-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec, HDr

Specifications of IDT92HD005XX5NLGXB2X

• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 90 / 95
• Dynamic Range, Adcs / Dacs (db) Typ: 90 / 95
• 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-VFQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 92HD005XX5NLGXB2X

IDT™
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
1.3.
Detailed Description
1.3.1.
1.3.2.
I/O Controller Hub (ICH)
Low-voltage High Definition Audio Link Signaling
The 92HD005/92HD005D are compatible with either 1.5 V or 3.3 V High Definition Audio Link signal-
ing; the voltage selection is performed dynamically based on the input voltage of DVDD_IO. Note
that DVDD_IO is not a logic configuration pin but provides the digital power supply to be used for the
High Definition Audio Link signals.
When in 1.5 V mode, the 92HD005/92HD005D can correctly decode BITCLK, SYNC, RESET# and
SDO because they operate at 1.5 V. Additionally, it will drive SDI_CODEC at 1.5 V. None of the
GPIOs are affected, as they always function at their nominal voltage (DVDD or AVDD).
Digital Microphone Support
The
92HD005/92HD005D via the DMIC0, DMIC1, and DMIC_CLK three-pin interface. The DMIC0 and
DMIC1 pins carry either 1 or 2 channels of digital microphone data to the 92HD005/92HD005D. In
the event that a single microphone is used, the data is routed to both ADC channels.
The DMIC_CLK output is programmable from 1.176 MHz to 4.704 MHz in 1.176 MHz increments
and is synchronous to the 24 MHz internal clock. The default frequency is 2.352 MHz.
The 92HD005/92HD005D supports the digital microphone configurations listed in Table 1.
digital
microphone
HD Audio Bus
Figure 2. System Diagram
interface
14
permits
92HD005
connection
92HD005/92HD005D
of
Speakers
Head Phone
Sub Woofer
Line In
Microphone
digital
microphones
PC AUDIO
V 1.1 4/08
to
the