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PDF STAC9250 Data sheet ( Hoja de datos )
| Número de pieza | STAC9250 | |
| Descripción | (STAC9250 / STAC9251) TWO-CHANNEL HD AUDIO CODEC | |
| Fabricantes | IDT | |
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DATA SHEET
TWO-CHANNEL HD AUDIO CODEC WITH MODEM
& DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
DESCRIPTION
The STAC9250/9251 are high fidelity, 2-channel audio CODECs
compliant with the High Definition Audio (HD Audio) specification
defined by Intel. The STAC9250/9251 enables a two-chip audio
and modem implementation by integrating the “System Side”
functionality of Silicon Labs’ modem solution. The STAC9250/
9251 provides a direct interface to Silicon Labs’ “Line Side” inte-
grated circuit. This integration results in cost savings without sac-
rificing audio fidelity or modem functionality. The STAC9251 also
implements a direct interface to two digital microphones, support-
ing advanced beam forming applications and resulting in
increased quality of voice applications.
FEATURES
• High-integration HD Audio Product
• 2-channel PC Audio CODEC
• Modem “System-side” functionality1
• Dual Digital Microphone interface(STAC9251)
• Two-Channel DACs and ADCs with 24-bit sample
resolution
• High performance Σ∆ technology
• Sample rates up to 192 KHz
• 100dB DAC SNR
1. Modem functionality can only be used with a “Line
Side” DAA integrated circuit, Si3080 or similar, available
from Silicon Labs (www.silabs.com).
• Integrated modem functionality from Silicon Labs1
supports reduced BOM costs
• Interfaces directly to Line Side integrated circuit from
Silicon Labs
• Supports two-chip audio plus modem functionality
• Supports Software modem implementations from
Motorola and others compatible with the Silicon Labs
chipset
• Supports Motherboard implementations eliminating MDC
card and connector costs
• Reduced board space
• Reduced external component count
• Integrated Headphone Amps
• Stereo Analog Microphone
• Supports Stereo Microphone
• Microphone Boost 0, 10, 20, 30, 40dB
•
• S/PDIF In and Out
• Universal Jacks™ Functionality for jack retasking
• Adjustable VREF Out
• Digital PC Beep to all outputs
• 48-pin LQFP Environmental Package
• Two-Channel High Definition Audio CODEC with
Modem and Dual Digital Microphone Interfaces
IDT™
1
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706
1 page  
STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
PC AUDIO
Table 88. SPDIFoutCnvtr WCap Command Verb Format ............................................................................. 56
Table 89. SPDIFoutCnvtr WCap Command Response Format .................................................................... 56
Table 90. SPDIFoutCnvtr FrmtCap Command Verb Format ......................................................................... 57
Table 91. SPDIFoutCnvtr FrmtCap Command Response Format ................................................................ 57
Table 92. SPDIFoutCnvtr StreamCap Command Verb Format ..................................................................... 58
Table 93. SPDIFoutCnvtr StreamCap Command Response Format ............................................................ 58
Table 94. SPDIFoutCnvtr Stream Command Verb Format ........................................................................... 58
Table 95. SPDIFoutCnvtr Stream Command Response Format ................................................................... 58
Table 96. SPDIFoutCnvtr DigCtl Command Verb Format ............................................................................. 59
Table 97. SPDIFoutCnvtr DigCtl Command Response Format ..................................................................... 59
Table 98. DAC0Mux WCap Command Verb Format ..................................................................................... 59
Table 99. DAC0Mux WCap Command Response Format ............................................................................ 60
Table 100. DAC0Mux ConnLen Command Verb Format .............................................................................. 60
Table 101. DAC0Mux ConnLen Command Response Format ...................................................................... 61
Table 102. DAC0Mux ConnSel Command Verb Format ............................................................................... 61
Table 103. DAC0Mux ConnSel Command Response Format ...................................................................... 61
Table 104. DAC0Mux ConnLst Command Verb Format ............................................................................... 61
Table 105. DAC0Mux ConnLst Command Response Format ....................................................................... 61
Table 106. DAC0Mux LR Command Verb Format ........................................................................................ 62
Table 107. DAC0Mux LR Command Response Format ................................................................................ 62
Table 108. DigInPin WCap Command Verb Format ...................................................................................... 62
Table 109. DigInPin WCap Command Response Format ............................................................................. 63
Table 110. DigInPin Cap Command Verb Format ......................................................................................... 63
Table 111. DigInPin Cap Command Response Format ................................................................................ 64
Table 112. DigInPin PwrState Command Verb Format ................................................................................. 64
Table 113. DigInPin PwrState Command Response Format ........................................................................ 64
Table 114. DigInPin Ctl Command Verb Format ........................................................................................... 65
Table 115. DigInPin Ctl Command Response Format ................................................................................... 65
Table 116. DigInPin UnsolResp Command Verb Format .............................................................................. 65
Table 117. DigInPin UnsolResp Command Response Format ..................................................................... 66
Table 118. DigInPin Sense Command Verb Format ..................................................................................... 66
Table 119. DigInPin Sense Command Response Format ............................................................................. 66
Table 120. DigInPin EAPD Command Verb Format ...................................................................................... 67
Table 121. DigInPin EAPD Command Response Format ............................................................................. 67
Table 122. DigInPin Config Command Verb Format ..................................................................................... 67
Table 123. DigInPin Config Command Response Format ............................................................................. 68
Table 124. DigOutPin WCap Command Verb Format ................................................................................... 68
Table 125. DigOutPin WCap Command Response Format .......................................................................... 68
Table 126. DigOutPin Cap Command Verb Format ...................................................................................... 69
Table 127. DigOutPin Cap Command Response Format .............................................................................. 69
Table 128. DigOutPin ConnLen Command Verb Format .............................................................................. 70
Table 129. DigOutPin ConnLen Command Response Format ...................................................................... 70
Table 130. DigOutPin ConnSel Command Verb Format ............................................................................... 71
Table 131. DigOutPin ConnSel Command Response Format ...................................................................... 71
Table 132. DigOutPin ConnLst Command Verb Format ............................................................................... 71
Table 133. DigOutPin ConnLst Command Response Format ....................................................................... 71
Table 134. DigOutPin Ctl Command Verb Format ........................................................................................ 72
Table 135. DigOutPin Ctl Command Response Format ................................................................................ 72
Table 136. DigOutPin Config Command Verb Format .................................................................................. 72
Table 137. DigOutPin Config Command Response Format .......................................................................... 72
Table 138. ADC0VolMux VolRight Command Verb Format .......................................................................... 73
Table 139. ADC0VolMux VolRight Command Response Format ................................................................. 73
Table 140. ADC0VolMux VolLeft Command Verb Format ............................................................................ 74
Table 141. ADC0VolMux VolLeft Command Response Format .................................................................... 74
Table 142. ADC0VolMux WCap Command Verb Format .............................................................................. 74
IDT™
5
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706
5 Page 
STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
PC AUDIO
2. CHARACTERISTICS
2.1. Audio Fidelity
DAC SNR:
ADC SNR:
100dB
90dB
2.2. Electrical Specifications
2.2.1. Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the STAC9250/9251. These ratings,
which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the
device at these or any other conditions above those indicated in the operational sections of the specifications is not
implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability.
Electrical parameters are guaranteed only over the recommended operating temperature range.
Item
Analog maximum supply voltage
Digital maximum supply voltage
VREFOUT output current
Voltage on any pin relative to ground
Operating temperature
Storage temperature
Soldering temperature
Pin Maximum Rating
AVdd 6 Volts
DVdd 5.5 Volts
5 mA
Vss - 0.3 V to Vdd + 0.3 V
0oC to +70oC
-55 oC to +125 oC
260 oC for 10 seconds *
Soldering temperature information for all available packages
begins on page 134.
2.2.2. Recommended Operation Conditions
Parameter
Power Supply Voltage
Digital - 3.3 V
Analog - 3.3 V
(Note: The +4 V Analog voltage is supported by the
+5 V version of the STAC9250/9251.)
Analog - 4 V
Analog - 5 V
Ambient Operating Temperature
Case Temperature
Tcase (48-LQFP)
Min.
3.135
3.135
3.8
4.75
0
Typ.
3.3
3.3
4
5
Max.
3.465
3.465
4.2
5.25
+70
+90
Units
V
V
V
V
°C
°C
IDT™
11
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet STAC9250.PDF ] | |
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