參數(shù)資料
型號(hào): DEM-DAI1600
英文描述: DEM-DAI1600 - Evaluation Fixture
中文描述: DEM的DAI1600 -評(píng)估夾具
文件頁(yè)數(shù): 2/13頁(yè)
文件大小: 194K
代理商: DEM-DAI1600
2
DEM-DAI
HARDWARE DESCRIPTION
A functional block diagram of the DEM-DAI board is
shown in Figure 1. It illustrates the basic connections be-
tween the receiver, transmitter, crystal oscillator/divider,
configuration controls, and the PCM demo board. Connec-
tors for external interfaces are also shown. The following
paragraphs provide a more detailed description of various
blocks and options.
DIGITAL AUDIO RECEIVER
The DEM-DAI board includes a digital audio receiver (Crys-
tal Semiconductor CS8412). This receiver provides the in-
terface to a S/PDIF digital audio source, such as an Audio
Precision System One or Two, a DAT, CD, or DVD player.
For more information, consult the Crystal data sheet for this
device.
Operational details for this device, as related to the DEM-
DAI board, are provided in the section entitled “Setting the
Configuration Controls” in this data sheet.
DIGITAL AUDIO TRANSMITTER
The DEM-DAI board includes a digital audio transmitter
(Crystal Semiconductor CS8402A). This transmitter pro-
vides the interface to a S/PDIF digital audio receiver, such
as an Audio Precision System One or Two, or an A/V
receiver. For more information, consult the Crystal data
sheet for this device.
Operational details for this device, as related to the DEM-
DAI board, are provided in the section entitled “Setting the
Configuration Controls” in this data sheet.
CLOCK SOURCES
The DEM-DAI board supports two sources for the system
clock, and three sources for the left/right clock (LRCK) and
bit clock (BCK). The system clock can be generated by the
digital audio receiver or the crystal oscillator/divider circuit.
The LRCIN and BCK can be generated by the digital audio
receiver, the crystal oscillator/divider circuit, or by a Master
mode PCM device, such as the PCM1800 Stereo ADC.
See the section entitled “Typical DEM-DAI Test Configura-
tions” for more information regarding the setup for testing
PCM audio products.
FIGURE 1. DEM-DAI Functional Diagram.
XTAL OSC
and
Divider
DAI Transmitter
CS8402A
DAI Receiver
CS8412
SW4, SW5, SW6
(M0), (M1), (M2)
SW9
Mode Select
Input Format Select
GND
GND
+V
CC
(M0), (M1), (M2)
SW1, SW2, SW3
Output Data Format Select
D/A Data
SYSCLK
BCK
LRCK
A/D DATA
SYSCLK
BCK
LRCK
D/A Data
A/D Data
SYSCLK
BCK
LRCK
Jumper
Buffer
2nd-Order
LPF
SYSCLK
BCK
LRCK
TORX176
S/PDIF Interface
RCA Connector
RCA Connector
Lch Analog Output
Rch Analog Output
Lch Analog Input
Rch Analog Input
TOTX176
S/PDIF Interface
DEM-PCM
Evaluation
Board
–V
S
+V
S
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