CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θ
JA
is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER
Conversion Speed, f
C
Integral Non-Linearity
Differential Non-Linearity
Supply Current
Reference Pin Current
Analog Input (-1dB)
Analog Input Capacitance
V
DD
= +5V, V
RB
= 1V, V
RT
= 2V, T
A
= 25
o
C
SYMBOL
f
C
E
L
E
D
I
DD
I
REF
BW
C
IN
R
REF
E
OT
E
OB
V
IN
= 1.5V + 0.07V
RMS
TEST CONDITIONS
V
IN
= 1V to 2V
f
IN
= 1kHz Ramp
f
C
= 20MSPS
V
IN
= 1V to 2V
f
C
= 20MSPS
V
IN
= 1V to 2V
f
C
= 20MSPS
NTSC Ramp Wave Input
MIN
0.5
-
-
-
3
-
-
175
0
15
4.0
-
V
DD
= Max
V
IH
= V
DD
V
IL
= 0V
V
DD
= Min
V
OH
= V
DD
= 0.5V
V
OL
= 0.4V
With TTL 1 Gate and 10pF Load
NTSC 40 IRE Mod
Ramp, f
C
= 14.3MSPS
-
-
-1.1
3.7
-
-
-
-
-
TYP
-
±0.3
±0.3
7
4
18
4
250
-20
35
-
-
-
-
-
-
18
1.0
1.0
40
4
MAX
20
±0.5
±0.5
12
5.7
-
-
325
-40
55
-
1.0
5
5
-
-
30
-
-
-
-
UNITS
MSPS
LSB
LSB
mA
mA
MHz
pF
Ω
mV
mV
V
V
µA
µA
mA
mA
ns
%
deg
ps
ns
Reference Resistance (V
RT
to V
RB
)
Offset Voltage
Digital Input Voltage
V
IH
V
IL
Digital Input Current
I
IH
I
IL
Digital Output Current
I
OH
I
OL
Output Data Delay
Differential Gain Error
Differential Phase Error
Aperture Jitter
Sampling Delay
T
DL
DG
DP
t
AJ
t
SD
3
HI1172
Test Circuits
+V
S2
-
+
S1
S1 : ON IF A < B
S2 : ON IF B > A
-V
A<B
V
IN
DUT
HI1172
6
A>B
6
COMPARATOR
A6
A1
A0
B6
B1
B0
BUFFER
“0”
DVM
CLK (20MHz)
“1”
6
000 • • • 00
TO
111 • • • 10
CONTROLLER
FIGURE 1. INTEGRAL NON-LINEARITY ERROR, DIFFERENTIAL NON-LINEARITY, OFFSET VOLTAGE
2V
f
C
-1kHz
SG
1V
1
2
NTSC
SIGNAL
SOURCE
40 IRE
MODULATION
BURST
1V
-5.2V
TTL
f
C
ECL
AMP
V
IN
HI1172
ECL
620
2V
-5.2V
620
SYNC
DG
DP
6
TTL
6
HI20201
1
10-BIT
D/A
CLK
2
VECTOR
SCOPE
HPF
ERROR RATE
COUNTER
100
IAE
0
-40
SG
(CW)
FIGURE 2. MAXIMUM OPERATIONAL SPEED, DIFFERENTIAL GAIN ERROR, DIFFERENTIAL PHASE ERROR
这个是spi寄存器的一些描述indicates that data has moved from UCxTXBUF to the TX shift
register and UCxTXBUF is ready for new data.
It does not indicate RX/TX completion.上述描述提 ......
CCS4 出现 warning:
entry-point symbol other than "_c_int00" specified:
"code_start" 的解决方法warning:
entry-point symbol other than "_c_int00" specified:
"code_start ......
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