92HD700 Просмотр технического описания (PDF) - Integrated Device Technology

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92HD700

10-CHANNEL HIGH DEFINITION AUDIO CODEC

Integrated Device Technology 

92HD700

10-CHANNEL HIGH DEFINITION AUDIO CODEC

PC AUDIO

Bins Return Hex Code

000b

0064h

001b

012Ch

010b

028Ah

011b

03E8h

100b

07D0h

101b

0BB8h

110b

2710h

111b

2710h

Table 1. Impedance Sense Levels

Impedance Level (Ohms)

General Device Detected

Impedance < 300

Passive Speakers, Headset Speakers

Impedance = 300 +/- 25%

Some Headset Speakers

300 > Impedance < 1275

Some Microphones

Impedance = 1275 +/- 25%

Microphones

1275 > Impedance < 2000

Microphones

Impedance = 2000 +/- 25%

Amplified Speakers

> 2000

Amplified Speakers, Line In

> 2000

Amplified Speakers, Line In

3.2. SPDIF Input

SPDIF_IN can operate at 44.1 KHz, 48 KHz or 96 KHz and implements internal Jack Detect.

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 allows for simulta-

neous record and play.

3.3. SPDIF Output

SPDIF Ouput can operate at 44.1 KHz, 48 KHz, 88.2 KHz and 96 KHz, as defined in the Intel High

Definition Audio Specification, with resolutions up to 24 bits. This insures compatibility with all con-

sumer audio gear and allows for convenient integration into home theater systems and media center

PCs.

IDT™ 10-CHANNEL HIGH DEFINITION AUDIO CODEC

19

IDT CONFIDENTIAL

92HD700

V 1.2 112006

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