STAC9758 datasheet(8/119 Pages) IDT

8 / 119 page

STAC9758/9759

HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™

PC AUDIO

IDT™

STAC9758/9759

V 1.2 1206

HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™

1.1.

Features

• Six Channel, AC’97 Revision 2.3 Compliant

• 20-bit ADCs

• 20-bit DACs

• 96KHz Sample Rate support

• SPDIF OUTPUT at 32 KHz, 44.1KHz, and 48KHz

• Double Rate SPDIF Output at 96 KHz

• ADAT Optical Lightpipe Output

• 8 channel, 20 bit output at 48KHz and 44.1KHz

• SPDIF INPUT at 48KHz and 44.1KHz with Internal Jack Sensing

• HEADPHONE AMPLIFIER with 50mW per channel

• Programmable +3dB voltage gain

• Universal JacksTM and 3-jack/6-channel jack-sharing

• The STAC9758/9759 supports 5 stereo analog I/O ports.

• These ports correspond to the following AC‘97 referenced pins: Mic1/2 (21/22), Line_In (23/

24), Line_Out (35/36), Surround (39/41), Center/LFE (43/44).

• These 5 ports may be used in the common “jack sharing” implementation or in a completely

reconfigurable (Universal Jacks

TM) configuration.

• Pins 35 and 36 = Headphone (default)

• Pins 23 and 24 = Line_In (default) or Surround out.

• Pin 21 and 22 = Microphone (default, mono) or CTR/LFE out.

• Rear jacks are dynamically reconfigurable to input or output.

• Internal jack sense is used to detect attached devices and inform the driver to reconfigure the

jack as appropriate.

• All “Universal JacksTM” pins (as well as pins 16/17) may also be inputs.

• Mixer Inputs

• Analog PC Beep, Digital PC Beep, Phone, Aux In, Line In (has pre-select mux for jack sharing/

Universal JacksTM), Mic In (mono and stereo modes - includes pre-select mux), DAC-A,

DAC-B

• Split-mute option on all stereo inputs allows left and right inputs to be muted independently.

• Analog Output Sources

• DAC-A, DAC-B, DAC-C, Stereo Mix, Mono

• Analog I/O

• Pins 21/22, 23/24, 35/36, 39/41, 43/44

• All Analog I/O pins have analog jack sense

• Pins 35/36 and 39/41 are capable of driving headphones

• All outputs are high impedance when powered down

• Split-mute (bit D7) option on all outputs allows left and right outputs to be muted independently

• Internal Microphone Sensing

• Mono and Dual Stereo Microphone Support

• Adjustable VRefOut Control

• Extended AC’97 2.3 Paging Registers

STAC9758 Datasheet(PDF) 8 Page - Integrated Device Technology

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