- 您現在的位置：買賣IC網 > PDF目錄384271 > EB-2100 (Electronic Theatre Controls, Inc.) DDX All-Digital, High Efficiency Evaluation Amplifier PDF資料下載
參數資料
| 型號： | EB-2100 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | DDX All-Digital, High Efficiency Evaluation Amplifier |
| 中文描述： | 的DDX全數字，高效率評價放大器 |
| 文件頁數： | 4/11頁 |
| 文件大?。?/td> | 578K |
| 代理商： | EB-2100 |
_______________ __ EB-2100x
4
Details are subject to change without notice.
HEADERS / REGULATORS (FIG. 3D)
The EB-2100x features local power regulation to
facilitate operation from a unipolar +10 to +36
VDC supply. Alternatively, auxiliary power may
be applied at J8 (removing bead L7) separating
logic and output power supplies. Output from
the onboard +5V regulator is available on the J6
test header. Output from the onboard +3.3V
regulator is available on the J7 expansion
header. There is capability available to power
external circuits from either the +5V or the +3.3V
supplies or a combination not to exceed a total
current of 0.33A.
Expansion header J7 is provided to monitor or
apply input signals to the DDX-2000. Jumper
R42 may be removed to pass serial data
provided by an external processor. Test header
J6 is provided to monitor signals output from the
DDX-2000. Signals INLC, INLD, INRC, INRD
are driven low by the DDX-2000 and are used
for test purposes only. DIP switch SW1 is used
for control functions: POS1 reverses data
channels when open, normal when closed;
POS2 sets unity gain for test when closed,
normal when open; POS3 forces the DDX-2100
into low power mode when closed, normal when
open; POS4 disables the anticlipping function
when closed, normal when open.
Supervisor U8 is used for power-on-reset,
power-off sequencing, and as a convenient
means of commanded reset via pushbutton.
ADDITIONAL INFORMATION
Bill of Materials
A bill of materials for the evaluation board is
provided in Table 1 for reference. Note
equivalent
components
manufacturers may be substituted. No warranty
of system performance is implied by Apogee
through use of the reference bill of materials.
Power Dissipation/Heat Sink Requirements
The DDX-2100 is a high efficiency dual channel
design intended for audio applications needs up
to 50 Watts RMS per channel. The power
dissipation of the device will depend primarily on
the supply voltage, load impedance, and output
modulation level. The thermal performance of
the evaluation board is consistent with a steady-
from
alternate
state duty rating of 50W RMS per channel with
both channels driven into 8
.
The DDX-2100 surface mount package includes
an exposed thermal pad on the top of the device
to provide a direct thermal path from the
integrated circuit to the heat sink. For continuous
duty rated applications, careful consideration
must be made to the overall thermal design.
Performance Measurements
Typical performance measurements for the
evaluation board are shown in Figs 4 through
11.
Class
D
amplifiers
switching distortion outside the audio bandwidth.
Apogee's DDX amplifier uses a patented PWM
modulation scheme that significantly reduces the
size of these products compared to typical Class
D designs. However, in order to obtain accurate
performance measurements in the audio
bandwidth (i.e., 20Hz to 20kHz) additional
filtering is required.
The Typical Performance data in was taken
using a brick wall filter with a break frequency of
22kHz. This type of filter is often provided as
part of audio measurement systems.
OPERATING INSTRUCTIONS
Refer to Fig. 12 evaluation amplifier assembly
drawing. Attach a regulated power supply at J3
set between +10V and +36VDC. At +36V, the
power supply must be capable of delivering 4A
minimum for two channels. Attach a digital
audio input source at either the coaxial or optical
S/PDIF connectors. Select the digital input
source via J2. Connect 8 Ohm speakers to J4
(left speaker) and J5 (right speaker). Configure
SW1 as POS1 closed, POS2,3,4 open. Note,
the speaker outputs are bridged. Do not ground
any speaker connections, e.g. through an
oscilloscope. Apply power, digital source
material
and
produce
measurable
enjoy!
相關PDF資料 |
PDF描述 |
|---|---|
| EB-2100M | DDX All-Digital, High Efficiency Evaluation Amplifier |
| EB-2100S | DDX All-Digital, High Efficiency Evaluation Amplifier |
| EB-2100x | DDX All-Digital, High Efficiency Evaluation Amplifier |
| EB-230 | Power Schottky Rectifier with common cathode |
| EB-ASG101-2000 | DC-3000 MHz SiGe HBT Amplifier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| EB-2100M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DDX All-Digital, High Efficiency Evaluation Amplifier |
| EB2100S | 制造商:APOGEE TECHNOLOGY 功能描述:EVALUATION BOARD |
| EB-2100S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DDX All-Digital, High Efficiency Evaluation Amplifier |
| EB2100X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Evaluation Board |
| EB-2100X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DDX All-Digital, High Efficiency Evaluation Amplifier |
發(fā)布緊急采購，3分鐘左右您將得到回復。