stac9228d5tae Integrated Device Technology, stac9228d5tae Datasheet - Page 22

• Manufacturer Part Number: stac9228d5tae
• Description: 8-channel High Definition Audio Codec
• Manufacturer: Integrated Device Technology

3. DETAILED DESCRIPTION
IDT™
STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
3.1.
8-CHANNEL HIGH DEFINITION AUDIO CODEC
Universal Jacks
3.1.1.
SigmaTel’s Universal Jacks
implementation.
For the STAC9227/9228/9229/9230 family the Universal Jacks
•
•
Note
at a time. For example, a pin pair cannot be configured as an input and output at the same time.
Configuration can be changed at any time.
Note
when using two Headphones simultaneously. See electrical specifications for details.
Note
result in significant audio quality degradation of the microphone audio input. In particular, when the
40dB MIC boost is active, the SNR, THD+N and DC offset will significantly degrade regardless of the
input signal level.
Audio Jack Presence Detect
SENSE_A pin is used to detect the presence of plugs in ports A, B, C, and D. SENSE_B pin is used
to detect the presence of plugs in ports E, F, G, ad H. Refer to the reference design for port detect
circuitry. Select the precision of the resistors used as follows:
AVDD Nominal
Voltage
Ports A, B, and D support
• Headphone Out
• Line Out
• Line In
• Microphone with 0/10/20/30/40 dB Microphone boost
Ports C, E, F, G, H support
• Line Out
• Line In
• Microphone with 0/10/20/30/40 dB Microphone boost
(+-5%)
1
2
3
4.5 V
3.3 V
: On the STAC9227/9228/9229/9230 family, only one function can be selected on each pin pair
: Three Headphones should not be used simultaneously. Performance degradation will occur
: When the 40dB microphone boost feature is enabled, gain increases greater than 6dB may
5 V
4 V
• Ports G & H do not have VrefOut Support
TM
Resistor Tolerance
(If Port D is used)
Sense A
0.50%
0.10%
1%
1%
TM
2
2
IDT CONFIDENTIAL
:
:
technology allows for the greatest flexibility in board design and
(If Port D is not used)
Resistor Tolerance
22
Sense A
1%
1%
1%
1%
Resistor Tolerance
3
3
(If Port H is used)
:
:
TM
STAC9227/9228/9229/9230V 1.0 MARCH 2007
Sense B
0.50%
0.10%
capabilities are as follows
1%
1%
(If Port H is not used)
Resistor Tolerance
Sense B
1%
1%
1%
1%
PC AUDIO
1
: