SPDIF outputs.
nent Specification Rev. 2.2). The STAC9766/67
危鈭?/div>
technology
to achieve a DAC SNR in excess of 95 dB. The
DACs, ADCs, and mixer are integrated with ana-
log I/Os, which include four analog line-level ste-
reo inputs, two analog line-level mono inputs, two
stereo outputs, and one mono output channel.
The STAC9766/67 include digital input/output
capability for support of modern PC systems with
an output that supports the SPDIF format. The
STAC9766/67 is a standard 2-channel stereo
codec. With SigmaTel鈥檚 headphone drive capabil-
ity, headphones can be driven with no external
amplifier. The STAC9766/67 may be used as a
secondary codec, with the STAC9700/21/44/56/
08/84 as the primary, in a multiple codec configu-
ration conforming to the AC'97 Rev. 2.2 specifica-
tion. This configuration can provide true six-
channel, AC-3 playback required for DVD applica-
tions. The STAC9766/67 communicates via the
five-wire AC-Link to any digital component of
AC'97 providing flexibility in the audio system
design. Packaged in an AC'97 compliant 48-pin
TQFP, the STAC9766/67 can be placed on the
motherboard, daughter boards, PCI, AMR, CNR,
or ACR cards.
FEATURES
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Full duplex stereo 18-bit ADCs and 20-bit
DACs
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AC鈥?7 Rev 2.2-compliant
High performance
危鈭?/div>
technology
SPDIF output
Crystal elimination circuit
Headphone amplifier
Independent sample rates for ADC & DACs
(hardware SRCs)
20 or 30 dB microphone boost capability
103 dB SNR LINE-LINE
5-Wire AC-Link protocol compliance
Digital-Ready architecture
General purpose I/O
+3.3V (STAC9767) and +5V (STAC9766)
analog power supply options
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Pin compatible with the STAC9700/21/44
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SigmaTel Surround (SS3D) Stereo
Enhancement
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Energy saving dynamic power modes
Not Recommended for New Designs.
Please use the STAC9766/67 CC1 and
beyond. Documentation available at
www.sigmatel.com.
ORDERING INFORMATION
Part Number
STAC9766T
STAC9767T
Package
48-pin TQFP 7mm x 7mm x 1.4mm
48-pin TQFP 7mm x 7mm x 1.4mm
Temp Range
0擄 C to +70擄 C
0擄 C to +70擄 C
Supply Range
DVdd = 3.3V, AVdd = 5.0V
DVdd = 3.3V, AVdd = 3.3V
Not Recommended for New Designs.
2-9766-P1-3.2-0802
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