- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97874 > EB2060X Evaluation board PDF資料下載
參數(shù)資料
| 型號(hào)： | EB2060X |
| 英文描述： | Evaluation board |
| 中文描述： | 評(píng)估板 |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大?。?/td> | 873K |
| 代理商： | EB2060X |
_______________
__ EB-2060x
3
Details are subject to change without notice.
adjusted using two potentiometers.
The DC
voltage set by the potentiometers is read by the
microcontroller interfaced to the volume serial
port of the DDX-2000.
The DDX-2000 has
independent volume control registers that have
an adjustment range from –82.5 dB to +12.0 dB
in 0.75 dB increments.
A 0 dB flag is included
on the microcontroller to set the volume level for
both channels to be unity gain. This setting is
particularly useful for audio measurements.
The EB-2060x permits three separate methods
for clocking the DDX-2000.
The default is via
the 256*Fs recovered clock output from the
S/PDIF receiver IC.
The second is via the
expansion header J7 used to apply an external
clock source to synchronize, for example,
multiple DDX-2000 ICs to the same clock. Zero-
ohm jumper R35 is installed to pass either of
these clock sources to the DDX-2000 master
clock input.
The last method is asynchronous
from an external crystal.
The DDX-2000
contains a crystal oscillator which may be used
for single sample-rate applications.
Oscillator
circuit Y1, C30, C37, R24, R26 may be
populated
and
jumper
R35
removed
for
applications where a 256*Fs clock source is not
convenient. The DDX-2000 tolerates a sample
rate mismatch of +/-0.2% about the crystal
frequency
without
performance
degradation.
The crystal footprint is a surface mount Epson
MA-506.
There
are
additional
provisions
for
demonstrating DDX-2000 functionality.
The
GCEN flag is used to disable the anticlipping
function and is controlled by DIP rocker switch
SW1.
Jumper R29 is provided to change the
serial port mode on the DDX-2000 from I
2S to
left-justified to accommodate an external set of
signals. Jumpers R13, R14, R30 are provided
for test modes and must not be changed.
A
channel reverse flag is provided which inverts
LRCLK causing left channel data to be output on
the right channel and vice versa. This function
is intended to be used for multiple amplifiers
configured
as
mono
when
used
in
a
multichannel audio demonstration.
POWER OUTPUT (FIG. 3C)
The DDX-2060 provides power amplification by
translating logic level PWM signals into power
level signals.
These power level signals are
applied to a passive two-pole lowpass filter to
reconstruct the audio signal providing power to
the load. The output filter functions to attenuate
unwanted high frequency signals from reaching
the load. A filter design for 8
loads is shown
in the Fig. 3C schematic for reference.
The DDX-2060 is designed for stereo operation
as either two independent full-bridges or for
mono operation as one full-bridge with twice the
current capability, enabling higher output power.
The EB-2060x is designed to demonstrate both
configurations via component substitutions. The
schematic notes in Fig. 3C detail component
changes to convert from stereo to mono
operation.
Evaluation boards configured as
either stereo or mono may be ordered with the
appropriate part number designations. Jumpers
R19, R22, R25, R33 are used to configure PWM
inputs for stereo operation. Jumpers R17, R23,
R27, R36 are used to configure PWM inputs for
mono operation. Jumpers JP1 and JP3 parallel
the
output
bridges
enabling
higher
output
current.
Jumpers JP2 and JP4 parallel the
output filter sections to a 4
load. Capacitor
C29 is the differential capacitor required for the
4
filter only.
In
applications
where
only
mono
70W
/
4
operation is desired, e.g. subwoofer, the
output filter may be simplified.
Two filter
sections may be employed in lieu of sections in
parallel.
Inductors may be the value with
twice the current rating. Capacitors are double
the value and resistors are the value at twice
the power rating.
Snubbers are employed to protect the output
MOSFETs from inductive transients.
Peak
voltage on the DDX-2060 output and power pins
must not exceed 40V. Output snubbers for the
stereo
implementation
are
R15,C23
and
R31,C40
and
the
snubber
for
the
mono
implementation is R21,C32.
Input protection is provided for the amplifier by
diode D1. D1 will protect from overvoltage and
reverse power applications by shunting the
power supply.
A thermal warning indicator is activated by the
DDX-2060
when
its
junction
temperature
exceeds +130
oC. The thermal warning output
is used to force the power LED to change color
from green to red forecasting the potential of an
overtemperature shutdown.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EB402 | EB402 Evaluation Board user＇s guide 7/01 |
| EBD12RB8ALFB-1A | SDRAM|DDR|16MX72|CMOS|DIMM|184PIN|PLASTIC |
| EBD12RB8ALFB-75 | SDRAM|DDR|16MX72|CMOS|DIMM|184PIN|PLASTIC |
| EBD12RB8ALFB-7A | SDRAM|DDR|16MX72|CMOS|DIMM|184PIN|PLASTIC |
| EBD25RB4ALFB-1A | SDRAM|DDR|32MX72|CMOS|DIMM|184PIN|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EB2061 | 功能描述:SWITCH PUSHBUTTON DPDT 3A 125V RoHS:是 類別:開(kāi)關(guān) >> 按鈕 系列:EB 標(biāo)準(zhǔn)包裝:1 系列:A16 類型:標(biāo)準(zhǔn)，發(fā)光式 電路:雙刀雙擲 開(kāi)關(guān)功能:開(kāi)-瞬時(shí) 額定電流:5A（AC） 額定電壓 - AC:125V 額定電壓 - DC:- 觸動(dòng)器類型:方形，按鈕 顏色 - 致動(dòng)器/蓋:黃 發(fā)光類型，顏色:LED，黃 發(fā)光電壓:12 VDC 安裝類型:前面板安裝 端接類型:焊接，快速連接 - 0.110"（2.8mm） 防護(hù)等級(jí):IP65 - 防塵/防油/防水 特點(diǎn):- 面板切口尺寸:圓形 - 直徑 16.00mm 包裝:散裝 工作溫度:-10°C ~ 55°C 機(jī)械壽命:2,000,000 次循環(huán) 電氣壽命:100,000 次循環(huán) 其它名稱:A165LAYM12D2 |
| EB-2061 | 制造商:NKK Switches 功能描述:Bulk |
| EB2061-A-J20 | 制造商:NKK 制造商全稱:Nihon Kaiheiki Industry Co. Ltd. 功能描述:Light Touch Miniature Pushbuttons |
| EB2061-A-J21A | 制造商:NKK Switches 功能描述:MINIATURE PUSHBUTTON/BUSHING MOU 制造商:NKK Switches 功能描述:MINIATURE PUSHBUTTON/BUSHING MOUNT |
| EB2061-A-J21A-RO | 功能描述:按鈕開(kāi)關(guān) DPDT ON-(ON) RoHS:否 制造商:C&K Components 觸點(diǎn)形式:2 NC - 2 NO 開(kāi)關(guān)功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風(fēng)格:Through Hole 照明:Illuminated 照明顏色:None IP 等級(jí):IP 40 端接類型:Solder 觸點(diǎn)電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級(jí):UL 94 V-0 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。