參數(shù)資料
型號： ZM407
元件分類： 參考電壓二極管
英文描述： Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode
中文描述： 250 的低電流運算，低反向泄露，低噪聲穩(wěn)壓二極管
文件頁數(shù)： 1/4頁
文件大?。?/td> 63K
代理商： ZM407
1
Features
n
A/D conversion with 6-bit
resolution
n
Time base programmable
from 50ns to 3.27 ms (at
a clock frequency of 20
MHz)
n
Trigger Modes: Auto, In-
ternal + /-, External + /-
n
5 discrete trigger levels
n
Internal SRAM for 128
values
n
SRAM bypass mode
n
Shift of base line by ad-
justable offset
n
Supply voltage 5 Volts
n
Bidirectional μC interface
n
Power-down for analog
part
n
PLCC44 package
Application
The Graphic Signal Monitor IC
was developed for visualization
of the time behavior of electri-
cal signals. Interaction with an
external μC makes it possible
to achieve the functionality of a
one-channel digital storage
oscilloscope with additional
digital voltmeter function.
The small dimensions as well
as a minimum of external wi-
ring facilitate both the applica-
tion in miniaturized measuring
devices for service and test
area, and placement near the
front panels in control panels
and switch cabinets.
Description
After the parameters of time
basis, trigger level and trigger
mode have been loaded into
the control register, the recor-
ding starts as soon as the trig-
ger condition occurs. This
procedure ends when 128
times 6 bit data have been
written from the flash A/D con-
verter into the internal SRAM.
Afterwards, an externally con-
nected microcontroller can
read the data and formate it for
an LC display or for transmis-
sion via an interface.
Block Diagram
A_IN
uC Interface
Z_IN
REFT
REFB
PARITY
DIO_0..7
OUT_10
OUT_100
SEL_AC
SEL_DC
EN_REC
EXT_PWR
BP_RAM
LD-DISPL
WR_TEST
CPUCLK
DISP_CLK
DISP_DATA
T_IN
TRIG_IN
TRIG_OUT
SHIFT REG
TRIGGER
REF
TIME BASE
MUX
STATUS
SRAM
A
D
ADC
CONTROL
+
-
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