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PDF ADAV801 Data sheet ( Hoja de datos )
| Número de pieza | ADAV801 | |
| Descripción | Audio Codec | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
Stereo analog-to-digital converter (ADC)
Supports 48/96 kHz sample rates
102 dB dynamic range
Single-ended input
Automatic level control
Stereo digital-to-analog converter (DAC)
Supports 32/44.1/48/96/192 kHz sample rates
101 dB dynamic range
Single-ended output
Asynchronous operation of ADC and DAC
Stereo sample rate converter (SRC)
Input/output range: 8 kHz to 192 kHz
140 dB dynamic range
Digital interfaces
Record
Playback
Auxiliary record
Auxiliary playback
S/PDIF (IEC60958) input and output
Digital interface receiver (DIR)
Digital interface transmitter (DIT)
PLL-based audio MCLK generators
Generates required DVDR system MCLKs
Device control via SPI®-compatible serial port
64-lead LQFP package
PRODUCT OVERVIEW
The ADAV801 is a stereo audio codec intended for applications
such as DVD or CD recorders that require high performance
and flexible, cost-effective playback and record functionality.
The ADAV801 features Analog Devices’ proprietary, high
performance converter cores to provide record (ADC), playback
(DAC), and format conversion (SRC) on a single chip. The
ADAV801 record channel features variable input gain to allow
for adjustment of recorded input levels and automatic level
control, followed by a high performance stereo ADC whose
digital output is sent to the record interface. The record channel
also features level detectors that can be used in feedback loops
to adjust input levels for optimum recording. The playback
channel features a high performance stereo DAC with
independent digital volume control.
Audio Codec for Recordable DVD
ADAV801
FUNCTIONAL BLOCK DIAGRAM
VINL
VINR
VREF
VOUTL
VOUTR
FILTD
PLL CONTROL
REGISTERS
ANALOG-TO-DIGITAL
CONVERTER
REFERENCE SRC
DIGITAL-TO-ANALOG
CONVERTER
DIGITAL
INPUT/OUTPUT
SWITCHING MATRIX
(DATAPATH)
RECORD
DATA
OUTPUT
AUX DATA
OUTPUT
DIT
ADAV801
PLAYBACK
DATA INPUT
AUX DATA
INPUT
DIR
OLRCLK
OBCLK
OSDATA
OAUXLRCLK
OAUXBCLK
OAUXSDATA
DITOUT
ZEROL/INT
ZEROR
APPLICATIONS
DVD-recordable
All formats
CD-R/W
Figure 1.
The sample rate converter (SRC) provides high performance
sample rate conversion to allow inputs and outputs that require
different sample rates to be matched. The SRC input can be
selected from playback, auxiliary, DIR, or ADC (record). The
SRC output can be applied to the playback DAC, both main and
auxiliary record channels, and a DIT.
Operation of the ADAV801 is controlled via an SPI-compatible
serial interface, which allows the programming of individual
control register settings. The ADAV801 operates from a single
analog 3.3 V power supply and a digital power supply of 3.3 V
with optional digital interface range of 3.0 V to 3.6 V.
The part is housed in a 64-lead LQFP package and is character-
ized for operation over the commercial temperature range of
−40°C to +85°C.
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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
1 page  
Parameter
Min Typ
Volume Control Step Size (256 Steps)
0.375
Group Delay
48 kHz
630
96 kHz
155
192 kHz
66
DAC LOW-PASS DIGITAL INTERPOLATION FILTER CHARACTERISTICS
Pass-Band Frequency
20
22
42
Stop-Band Frequency
24
26
60
Stop-Band Attenuation
70
70
70
Pass-Band Ripple
±0.002
±0.002
±0.005
PLL SECTION
Master Clock Input Frequency
27/54
Generated System Clocks
MCLKO
27/54
SYSCLK1
256
SYSCLK2
256
SYSCLK3
Jitter
SYSCLK1
SYSCLK2
SYSCLK3
DIR SECTION
Input Sample Frequency
Differential Input Voltage
DIT SECTION
Output Sample Frequency
DIGITAL I/O
Input Voltage High, VIH
Input Voltage Low, VIL
Input Leakage, IIH @ VIH = 3.3 V
Input Leakage, IIL @ VIL = 0 V
Output Voltage High, VOH @ IOH = 0.4 mA
Output Voltage Low, VOL @ IOL = −2 mA
Input Capacitance
POWER
Supplies
Voltage, AVDD
Voltage, DVDD
Voltage, ODVDD
256 512
65
75
75
27.2
200
27.2
2.0
2.4
3.0 3.3
3.0 3.3
3.0 3.3
ADAV801
Max Unit
dB
µs
µs
µs
kHz
kHz
kHz
kHz
kHz
kHz
dB
dB
dB
dB
dB
dB
MHz
MHz
768 × fS
768 × fS
× fS
ps rms
ps rms
ps rms
200 kHz
mV
200 kHz
DVDD
0.8
10
10
0.4
15
V
V
µA
µA
V
V
pF
Comments
Sample rate: 44.1 kHz
Sample rate: 48 kHz
Sample rate: 96 kHz
Sample rate: 44.1 kHz
Sample rate: 48 kHz
Sample rate: 96 kHz
Sample rate: 44.1 kHz
Sample rate: 48 kHz
Sample rate: 96 kHz
Sample rate: 44.1 kHz
Sample rate: 48 kHz
Sample rate: 96 kHz
256/384/512/768 × 32/44.1/
48 kHz
256/384/512/768 × 32/44.1/
48 kHz
256/512 × 32/44.1/48 kHz
3.6 V
3.6 V
3.6 V
Rev. 0 | Page 5 of 56
5 Page 
TYPICAL PERFORMANCE CHARACTERISTICS
0
–50
–100
–150
0
0.5 1.0 1.5
FREQUENCY (Normalized to fS)
Figure 3. ADC Composite Filter Response
2.0
5
0
–5
–10
–15
–20
–25
–30
0
5 10 15
FREQUENCY (Hz)
Figure 4. ADC High-Pass Filter Response, fS = 48 kHz
20
5
0
–5
–10
–15
–20
–25
–30
0
5 10 15
FREQUENCY (Hz)
Figure 5. ADC High-Pass Filter Response, fS = 96 kHz
20
ADAV801
0
–50
–100
–150
0
96 192 288
FREQUENCY (kHz)
384
Figure 6. DAC Composite Filter Response, 48 kHz
0
–50
–100
–150
0
12 24 36
FREQUENCY (kHz)
Figure 7. DAC Pass-Band Filter Response, 48 kHz
48
0.06
0.04
0.02
0.00
–0.02
–0.04
–0.06
0
8 16
FREQUENCY (kHz)
Figure 8. DAC Filter Ripple, 48 kHz
24
Rev. 0 | Page 11 of 56
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADAV801.PDF ] | |
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