參數(shù)資料
型號(hào)： DDX4100A
文件頁數(shù)： 1/27頁
文件大?。?/td> 1737K
代理商： DDX4100A
DDX-4100
DDX
Multichannel
Digital Audio Processor
GENERAL DESCRIPTION
The DDX-4100 Digital Audio Processor is a single
chip device for implementing complete digital
solutions for audio amplification. In conjunction with
multiple DDX-2060 Power IC’s, the solution provides
a full digital, multi-channel, high quality, power
processing chain without the need of Digital-to-Analog
converters between the DSP and power amplifier.
The device supports two input configurations, AC’97
input mode or IIS/SPDIF input mode, with the
selection made via a dedicated pin (
AC97_MODE
pin
).
The AC’97 input mode can be configured to work in
either a ‘Fully Compliant’ mode or a ‘Proprietary’
mode. The selection of this compliance mode is made
in a Vendor Reserved register. The ‘Fully Compliant’
mode conforms to rev 2.1 of AC’97 specification. The
‘Proprietary’ mode enables additional features not
found in the ‘Fully Compliant’ mode. The link supports
up to 6 input channels with discrete sampling
frequencies of 44.1, 48, 88.2, or 96 kHz.
FEATURES
SOURCE-TO-SPEAKER INTEGRATED
DIGITAL AUDIO SOLUTION w/DDX-2060
Power IC’s
DIGITAL PREAMP FUNCTIONS:
Digital Volume Control
Bass and Treble
Parametric EQ on each Channel
Bass Management for LFE Channel
Soft Mute
Automatic mute for Zero Inputs
4+1 CHANNELS DDX PROCESSING
STEREO S/PDIF INPUT INTERFACE
4 CHANNEL PROGRAMMABLE SERIAL
INPUT INTERFACE
6 CHANNEL PROGRAMMABLE SERIAL
OUTPUT INTERFACE
Intel AC’97 LINK (rev.2.1) INPUT INTERFACE
for AUDIO AND CONTROL
AUTOMATIC INPUT SAMPLING
FREQUENCY DETECTION AND SAMPLE
RATE CONVERTER
I
2
C CONTROL BUS
LOW POWER 3.3V CMOS TECHNOLOGY
EXTERNAL INPUT CLOCK OR BUILT-IN
XTAL OSCILLATOR
DIGITAL GAIN CONTROL; UP TO 24dB @
0.75dB/STEP
DDX-4100 BLOCK DIAGRAM
EAPD
SDO 3
SDO 2
SDO 1
BICKO
LRCK0
LFE B
LFE A
SRIGHT B
SRIGHT A
SLEFT B
SLEFT A
RIGHT B
RIGHT A
LEFT B
LEFT A
SDA
SCL
SA
XTI
XTO
CKOUT
RESET
RXN
RXP
SDI 2/AC97 IN
SDI 1/AC97 OUT
BICKI/BIT CL
LRCK1/SYNC
2
3
4
1
19
18
7
DDX
I
2
S
PowerDown
DSP
RAM
ROM
SRC
I
2
C
PLL
43
15
14
44
PWDN
AC’97
S/PDI
I
2
S
23
22
35
39
38
37
40
36
21
24
33
34
27
28
29
30
11
9
10
129 Morgan Drive, Norwood MA 02062
1
voice: (888) 3APOGEE fax: (781) 440-9528 www.apogeeddx.com
Copyright Apogee Technology, Inc 2000, 2001
(All Rights Reserved)
December 2001
DOC #
04010001
-05
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