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PDF 92HD87 Data sheet ( Hoja de datos )

Número de pieza 92HD87
Descripción SINGLE CHIP PC AUDIO SYSTEM
Fabricantes IDT 
Logotipo IDT Logotipo



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DATASHEET
SINGLE CHIP PC AUDIO SYSTEM
CODEC+ STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD87
Description
Features
The 92HD87 single-chip audio system is a low power
optimized, high fidelity, 4-channel audio codec with
integrated speaker amplifier, capless headphone amplifier,
and low drop out voltage regulator.
The high integration of the 92HD87 and the 40QFN
package enables the smallest PCB footprint with the lowest
system BOM count and cost.
• 4 Channels (2 stereo DACs and 2 stereo ADCs) with
24-bit resolution
• Supports full-duplex stereo audio and simultaneous VoIP
• 2W/channel stereo speaker amplifier @ 4 ohms and
4.75V
• Two headphone amplifiers
• One capless and one non-capless retaskable
The 92HD87 provides high quality HD Audio capability to
notebook and business desktop PC applications.
• Internal LDO for digital core supply
• +5 V analog power supply option
• Dedicated BTL high pass filter for speaker
protection (RA revision only)
• Full HDA015-B low power support
• Audio inactivity transitions codec from D0 to D3 low
power mode
• Resume from D3 to D0 with audio activity in < 10 msec
• D3 to D0 transition with < -65dB pop/click
• Port presence detect in D3 with or without bit clock
• Optional analog PC beep in D3
• Additional vendor specific modes for even lower power
• Microsoft WLP premium logo compliant, as defined
http://www.DataSheet4U.net/
in WLP 3.9
• Support for 1.5V and 3.3V HDA signaling
• Digital microphone inputs (mono or stereo)
• Aux Audio Mode (see orderable part numbers for support)
• High performance analog mixer
• 2 adjustable VREF Out pins for analog microphone
bias
• 5 analog ports with port presence detect + stereo
speaker differential output)
• Analog and digital PC Beep support
• 40-pad QFN RoHS package
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
1
V 0.995 01/11
92HD87
datasheet pdf - http://www.DataSheet4U.net/

1 page




92HD87 pdf
92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
8.5.9. PortB (NID = 0Bh): EAPDBTLLR .......................................................................................93
8.5.10. PortB (NID = 0Bh): ConfigDefault ....................................................................................93
8.6. PortC (NID = 0Ch): WCap ...............................................................................................................96
8.6.1. PortC (NID = 0Ch): PinCap ................................................................................................97
8.6.2. PortC (NID = 0Ch): ConLst ................................................................................................98
8.6.3. PortC (NID = 0Ch): ConLstEntry0 ......................................................................................99
8.6.4. PortC (NID = 0Ch): InAmpLeft ...........................................................................................99
8.6.5. PortC (NID = 0Ch): InAmpRight .......................................................................................100
8.6.6. PortC (NID = 0Ch): ConSelectCtrl ...................................................................................100
8.6.7. PortC (NID = 0Ch): PwrState ...........................................................................................101
8.6.8. PortC (NID = 0Ch): PinWCntrl .........................................................................................101
8.6.9. PortC (NID = 0Ch): UnsolResp ........................................................................................102
8.6.10. PortC (NID = 0Ch): ChSense .........................................................................................103
8.6.11. PortC (NID = 0Ch): EAPDBTLLR ...................................................................................103
8.6.12. PortC (NID = 0Ch): ConfigDefault ..................................................................................104
8.7. PortD (NID = 0Dh): WCap .............................................................................................................106
8.7.1. PortD (NID = 0Dh): PinCap ..............................................................................................108
8.7.2. PortD (NID = 0Dh): ConLst ..............................................................................................109
8.7.3. PortD (NID = 0Dh): ConLstEntry0 ....................................................................................110
8.7.4. PortD (NID = 0Dh): ConSelectCtrl ...................................................................................110
8.7.5. PortD (NID = 0Dh): PwrState ...........................................................................................110
8.7.6. PortD (NID = 0Dh): PinWCntrl .........................................................................................111
8.7.7. PortD (NID = 0Dh): EAPDBTLLR .....................................................................................112
8.7.8. PortD (NID = 0Dh): ConfigDefault ....................................................................................112
8.8. Vendor Reserved (NID = 0Eh) .......................................................................................................115
8.9. PortF (NID = 0Fh): WCap ..............................................................................................................115
8.9.1. PortF (NID = 0Fh): PinCap ...............................................................................................116
8.9.2. PortF (NID = 0Fh): ConLst ...............................................................................................117
8.9.3. PortF (NID = 0Fh): ConLstEntry0 .....................................................................................118
8.9.4. PortF (NID = 0Fh): InAmpLeft ..........................................................................................118
8.9.5. PortF (NID = 0Fh): InAmpRight ..................http.://ww.w.D.ataSh.eet4U..net/................................................................. 119
8.9.6. PortF (NID = 0Fh): ConSelectCtrl ....................................................................................119
8.9.7. PortF (NID = 0Fh): PwrState ............................................................................................120
8.9.8. PortF (NID = 0Fh): PinWCntrl ..........................................................................................120
8.9.9. PortF (NID = 0Fh): UnsolResp .........................................................................................121
8.9.10. PortF (NID = 0Fh): ChSense ..........................................................................................122
8.9.11. PortF (NID = 0Fh): EAPDBTLLR ...................................................................................122
8.9.12. PortF (NID = 0Fh): ConfigDefault ...................................................................................123
8.10. Vendor Reserved (NID = 10h) .....................................................................................................125
8.11. DMic0 (NID = 11h): WCap ...........................................................................................................125
8.11.1. DMic0 (NID = 11h): PinCap ...........................................................................................127
8.11.2. DMic0 (NID = 11h): InAmpLeft .......................................................................................128
8.11.3. DMic0 (NID = 11h): InAmpRight ....................................................................................128
8.11.4. DMic0 (NID = 11h): PwrState .........................................................................................129
8.11.5. DMic0 (NID = 11h): PinWCntrl .......................................................................................130
8.11.6. DMic0 (NID = 11h): UnsolResp ......................................................................................130
8.11.7. DMic0 (NID = 11h): ChSense ........................................................................................131
8.11.8. DMic0 (NID = 11h): ConfigDefault .................................................................................131
8.12. Reserved (NID = 12h) ..................................................................................................................134
8.13. DAC0 (NID = 13h): WCap ............................................................................................................134
8.13.1. DAC0 (NID = 13h): Cnvtr ...............................................................................................135
8.13.2. DAC0 (NID = 13h): ProcState (RA revision only) ...........................................................136
8.13.3. DAC0 (NID = 13h): OutAmpLeft .....................................................................................137
8.13.4. DAC0 (NID = 13h): OutAmpRight ..................................................................................137
8.13.5. DAC0 (NID = 13h): PwrState .........................................................................................138
8.13.6. DAC0 (NID = 13h): CnvtrID ............................................................................................139
8.13.7. DAC0 (NID = 13h): EAPDBTLLR ...................................................................................139
8.13.8. DAC0 (NID = 13h): ProcIndex (RA revision only) ..........................................................140
8.14. DAC1 (NID = 14h): WCap ............................................................................................................140
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
5
V 0.995 01/11
92HD87
datasheet pdf - http://www.DataSheet4U.net/

5 Page





92HD87 arduino
92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
2. DETAILED DESCRIPTION
2.1. Port Functionality
Multi-function (Input / output) ports allow for the highest possible flexibility. 3 or 4 bi-directional ports,
2 headphone ports, and a high power BTL amplifier support a wide variety of consumer desktop and
mobile system use models.
For the codec the port capabilities are as follows
• Port A supports
• Headphone
• Line Out
• Line Input
• Mic with 0/10/20/30 dB Boost and Vref_Out
• Port B supports
• Capless Headphone Out
• Capless Line Out
• Port C supports
• Line Out (not available on TB revision)
• Line In
• Mic with 0/10/20/30 dB boost and Vref_Out
• Port D supports
• BTL (L+/L-) stereo out
• Port F supports
• Line Out
• Line In
• Mic with 0/10/20/30 dB boost http://www.DataSheet4U.net/
Pins
Port
Input
Output Headphone
24/23
27/26
15/16
35/36
13/14
3
A
B
C
D
F
DMIC0
Yes Yes
Yes
Yes Yes
Yes
Yes Yes
Yes
Yes
Yes
Table 1. Port Functionality
BTL
Yes
Mic Bias
(Vref pin)
Yes
Input
boost amp
Yes
Yes Yes
Yes
Yes
2.1.1.
Port Characteristics
Universal (Bi-directional) jacks are supported on ports C (input only on TB revision) and F. Port A is
birdirectional also. Ports A and B are designed to drive 32 ohm (nominal) headphones or a 10K
(nominal) load. Line Level outputs are intended to drive an external 10K load (nominal) and an on
board shunt resistor of 20-47K (nominal). However, applications may support load impedances of 5K
ohms and above. Input ports are 50K (nominal) at the pin.
DAC full scale outputs and intended full scale input levels are 1V rms at 5V. Line output ports and
Headphone output ports on the codec may be configured for +3dBV full scale output levels by using
a vendor specific verb.
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
11
V 0.995 01/11
92HD87
datasheet pdf - http://www.DataSheet4U.net/

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