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參數(shù)資料
| 型號： | HI3286JCQ |
| 廠商： | INTERSIL CORP |
| 元件分類： | ADC |
| 英文描述： | 8-Bit, 160MSPS, Flash A/D Converter |
| 中文描述： | 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | 7 X 7 MM, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 229K |
| 代理商： | HI3286JCQ |
10
Operating Modes
The HI3286 has two types of operating modes which are selected with Pin 45 (SELECT1).
DMUX Mode (See Application Circuits,
Figures 18, 19)
Set the SELECT1 pin to V
CC
for this mode. In this mode, the
clock frequency is divided by 2 in the IC, and the data is
output after being demultiplexed by this
1
/
2
frequency
divided clock. The
1
/
2
frequency divided clock, which has
adequate setup time and hold time for the output data, is
output from the CLKOUT pin.
When using multiple HI3286 units in parallel in this mode,
differences in the start timing of the
1
/
2
frequency divided clock
may cause operation as shown in Figure 9. As a
countermeasure, the HI3286 is equipped with a function which
resets the
1
/
2
frequency divided clock. When resetting this
clock, the RESET pulse must be input to the RESET pin. See
the Timing Charts for the RESET pulse input timing. The A/D
converter can operate at f
C
(Min) = 160MSPS in this mode.
StraightMode(SeeApplicationCircuits,Figures20,21)
Set the SELECT1 pin to GND for this mode. In this mode,
data output can be obtained in accordance with the clock
frequency applied to the A/D converter for applications which
use the clock applied to the A/D converter as the system clock.
The A/D converter can operate at f
C
(Min) = 100MSPS in
this mode.
Digital Input Level and Supply Voltage Settings
The logic input level for the HI3286 supports PECL and TTL
levels.
The power supplies (DV
EE3
, DGND3) for the logic input
block must be set to match the logic input (CLK and RESET
signals) level.
FIGURE 6. ERROR RATE MEASUREMENT CIRCUIT
FIGURE 7. SAMPLING DELAY/APERTURE JITTER
MEASUREMENT CIRCUIT
NOTE: Where
σ
(LSB) is the deviation of the output codes when the
largest slew rate point is sampled at the clock which has exactly the
same frequency as the analog input signal, the aperture jitter t
AJ
is:
FIGURE 8. APERTURE JITTER MEASUREMENT METHOD
Test Circuits
(Continued)
SIGNAL
SOURCE
COMPARATOR
A > B
PULSE
COUNTER
SIGNAL
SOURCE
LATCH
+
1
/
8
LATCH
A
f
C
4
B
8
16 LSB
2V
P-P
SINE WAVE
-1kHz
V
IN
CLK
CLK
f
C
HI3286
LOGIC
ANALYZER
HI3286
V
IN
CLK
AMP
8
1024
SAMPLES
PECL
BUFFER
OSC1
φ
: VARIABLE
OSC2
100MHz
f
R
100MHz
V
RT
V
RM2
V
RB
129
128
127
126
125
(LSB)
υ
t
σ
V
IN
CLK
V
IN
CLK
SAMPLING TIMING FLUCTUATION
(= APERTURE JITTER)
t
AJ
=
σ
/
t
-------
=
σ
/22
x 2
π
f
.
TABLE 2. OPERATING MODE
OPERATING
MODE
SELECT1
MAXIMUM
CONVERSION RATE
DATA OUTPUT
CLOCK OUTPUT
DMUX Mode
V
CC
160MSPS
Demultiplexed Output 80MBPS
The input clock is
1
/
2
frequency divided and output at
80MHz.
Straight Mode
GND
125MSPS
Straight Output 125MBPS
The input clock is inverted and output at 100MHz.
HI3286
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相關代理商/技術參數(shù) |
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| HI3300IN | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3V 10-Bit, 20MSPS A/D Converter with Internal Voltage Reference |
| HI330-100KB | 制造商:RCD 制造商全稱:RCD COMPONENTS INC. 功能描述:POWER SM INDUCTORS, UP TO 20 AMPS SHIELDED AND NON-SHIELDED |
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