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DDX4100

更新时间： 2024-09-14 23:46:47
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其他 - ETC /
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27页 1581K
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DDX4100 数据手册

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DDX-4100  
DDXMultichannel  
FEATURES  
Digital Audio Processor  
•
SOURCE-TO-SPEAKER INTEGRATED  
GENERAL DESCRIPTION  
DIGITAL AUDIO SOLUTION w/DDX-2060  
Power IC’s  
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.  
•
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  
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).  
4 CHANNEL PROGRAMMABLE SERIAL  
INPUT INTERFACE  
•
•
•
6 CHANNEL PROGRAMMABLE SERIAL  
OUTPUT INTERFACE  
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.  
Intel AC’97 LINK (rev.2.1) INPUT INTERFACE  
for AUDIO AND CONTROL  
AUTOMATIC INPUT SAMPLING  
FREQUENCY DETECTION AND SAMPLE  
RATE CONVERTER  
•
•
•
I2C 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  
SA  
11  
SCL  
10  
SDA  
9
LEFT  
LEFT  
RIGHT  
RIGHT  
SLEFT  
SLEFT  
A
B
A
B
A
B
30  
29  
28  
27  
34  
33  
3
4
LRCK1/SYNC  
BICKI/BIT CL  
I
2
C  
I2S  
SDI 1/AC97 OUT  
SDI 2/AC97 IN  
1
2
ROM  
DDX  
24  
23  
22  
SRIGHT  
SRIGHT  
A
B
LFE  
LFE  
A
B
RXP  
RXN  
18  
19  
21  
S/PDI  
SRC  
DSP  
LRCK0  
BICKO  
36  
40  
I2S  
37  
38  
39  
SDO  
SDO  
SDO  
1
2
3
RAM  
AC’97  
EAPD  
35  
PowerDown  
RESET  
7
PLL  
14  
15  
43  
44  
XTI  
XTO  
CKOUT  
PWDN  
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  
1234567...27

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