|
|
PDF AD1987 Data sheet ( Hoja de datos )
| Número de pieza | AD1987 | |
| Descripción | HD Audio Codec | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AD1987 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
a
High Definition Audio
SoundMAX Codec
AD1987
FEATURES
EIGHT 192 kHz DACs
Four independent stereo DAC pairs
7.1 surround sound or 5.1 stereo out plus independent
headphone
Independent 8, 11.025, 16, 22.05, 32, 44.1,
48, 88.2, 96, 176.4, and 192 kHz sample rates
16, 20, and 24-bit PCM resolution
Selectable stereo mixer on outputs
FOUR 96 kHz ADCs
Two independent stereo ADC pairs
Simultaneous record of up to four channels
Independent 8, 11.025, 16, 22.05, 32, 44.1,
48, 88.2, and 96 kHz sample rates
16, 20, and 24-bit PCM resolution
Support for quad microphone arrays
S/PDIF OUTPUT
Supports 44.1, 48, 88.2, 96, 176.4, and 192 kHz sample rates
16, 20, and 24-bit data; PCM, AC3
www.DataSheet4U.com
Digital PCM gain control
DEDICATED AUXILIARY PINS
Stereo CD/auxiliary I/O port w/GND sense
Mono out pin for internal speakers or telephony
ENHANCED FEATURES
Three stereo headphones
Microsoft Vista Premium logo for desktop
95 dB audio outputs, 90 dB audio inputs
Internal 32-bit arithmetic for greater accuracy
Impedance and presence detection on all jacks
Retaskable jacks
Four independent microphone bias pins
Digital and analog PCBeep
C/LFE channel swapping
Two general-purpose digital I/O (GPIO) pins
Advanced power management modes
48-lead, Pb-free LFCSP_VQ package
S /P D IF Tx
S/P DIF O UT
D IG IT A L
PCBEEP
AD1987
DAC3
DAC2
H
D DAC1
A
U DAC0
D
I
O
I
N
T
E GPIO
R
F
A
C
E
⌺ PORT F
⌺ PORT G
⌺ PORT D
⌺ PORT H
⌺ MONO OUT
⌺ PORT E
⌺ PORT A
⌺ PORT B
⌺ PORT C
ADC1
ADC0
⌺
Figure 1. AD1987 Block Diagram
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved.
1 page  
Parameter
DIGITAL-TO-ANALOG CONVERTERS
Resolution
Gain Error (Full Scale Span Relative to Nominal Input Voltage)1
Interchannel Gain Mismatch (Difference of Gain Errors)
Total Audible Out-of-Band Energy (Measured from 0.6 × fS to 20 kHz)1
DAC Crosstalk (Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure L_OUT)1
DAC VOLUMES
Step size (DAC-0, DAC-1, DAC-2, DAC-3)
Output Gain/Attenuation Range
Mute Attenuation of 0 dB Fundamental1
ADC VOLUMES
Step size (ADCSEL-0, ADCSEL-1)
PGA Gain/Attenuation Range
ANALOG MIXER
Signal-to-Noise Ratio Input to Output—Ports B, C, or F, to Port D Output
Step Size: All Mixer Inputs
Input Gain/Attenuation Range: All Mixer Inputs
ANALOG LINE LEVEL OUTPUTS
Full-Scale Output Voltage: Line out drive enabled
Ports A, D, E, F, and Mono Out
Output Impedance1
External Load Impedance1
Output Capacitance1
External Load Capacitance1
ANALOG HP DRIVE OUTPUTS
Full-Scale Output Voltage: Line Out Drive Enabled
www.DataSheet4U.com
Ports A and D (when HP Drive is Enabled)
Output Impedance1
External Load Impedance1
Output Capacitance1
External Load Capacitance1
ANALOG INPUTS
Input Voltages—Ports B, C, or E
Mic Boost = 0 dB
Min
–58.5
–58.5
–34.5
1.0
2.83
10
1.0
2.83
32
Input Voltages—Microphone Boost
Amplifier, Ports B, C, or E
Mic Boost = +10 dB
Mic Boost = +20 dB
Mic Boost = +30 dB
Input Impedance
PCBEEP
Ports B, C, E (Mic Boost = 0 dB)
Port F
Input Capacitance1
Typ
24
–85
–95
1.5
–80
1.5
95
–1.5
190
15
15
1
2.83
0.316
0.894
0.1
0.283
0.032
0.089
23
150
45
5
AD1987
Max
±10
±0.5
0
+22.5
+12.0
1000
0.5
1000
Unit
Bits
%
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V rms3
V p-p
Ω
kΩ
pF
pF
V rms3
V p-p
Ω
Ω
pF
pF
V rms3
V p-p
V rms3
V p-p
V rms3
V p-p
V rms3
V p-p
kΩ
kΩ
kΩ
7.5 pF
Rev. 0 | Page 5 of 18 | May 2007
5 Page 
AD1987
Table 5. AD1987 Pin Descriptions (Continued)
Mnemonic
Pin No. Function
Description
POWER AND GROUND
DVIO 3.3 V ±10%
DVSS
DVDD 3.3 V ±10%
AVDD 3.3 V ±5%
3
4, 7
9
25, 38
I
I
I
I
Connect to the I/O voltage used for the HD-audio controller signals.
Digital supply return (ground).
Digital supply voltage 3.3 V. This is regulated down to Pin 1 to supply the internal
digital core.
CAUTION: DO NOT APPLY 5.0 V TO THESE PINS!
Analog supply voltage 3.3 V ONLY.
Note: AVDD supplies should be well regulated and filtered as supply noise degrades
audio performance.
MIC_BIAS_IN
33 I
AVSS 26, 42 I
Source for microphone bias boost circuitry.
Connect this pin to 5.0 V via a low-pass filter. When connected this way the AD1987 is
capable of providing +3.95 V as a mic bias to all of the mic bias pins.
If 5 V is not available, connect this pin to +3.3 V (AVDD) via a low-pass filter. The
AD1987 produces a mic bias voltage relative to the AVDD supply
(typically 3.0 V @ AVDD = 3.3 V).
Analog supply return (ground). AVSS should be connected to DVSS using a conductive
trace under, or close to, the AD1987.
The symbols used in this table are defined as: I = Input, O = Output, LI = Line level input, LO = Line level output, HP = Output capable of driving
headphone load, MIC = Input supports microphones with MIC bias and boost amplifier, SWAP = Outputs can swap L/R channels (typically used
to support C/LFE or shared C/LFE function).
www.DataSheet4U.com
Rev. 0 | Page 11 of 18 | May 2007
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AD1987.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AD1980 | AC 97 SoundMAX Codec | Analog Devices |
| AD1980 | SigmaDSP 3-Channel/ 26-Bit Signal Processing DAC | Analog Devices |
| AD1981A | AC 97 SoundMAX Codec | Analog Devices |
| AD1981B | AC 97 SoundMAX Codec | Analog Devices |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |