Texas Instruments 180 to 100 Pin DIMM Adapter TMDSADAP180TO100 TMDSADAP180TO100 데이터 시트
제품 코드
TMDSADAP180TO100
ADCSOCAO
ADCSOCBO
or
t
w(ADCSOCL)
0
10
20
30
40
50
60
70
80
-40 -35 -30 -25 -20 -15 -10 -5
10 15 20 25 30 35 40
Temperature (°C)
Typical ADC Total Error
T
o
ta
l E
rr
o
r (
L
S
B
s
)
45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125
0
5
SPRS825C – OCTOBER 2012 – REVISED FEBRUARY 2014
A.
Gain error contribution is based on sampling of full-scale voltage using internal reference mode.
B.
Periodic ADC offset re-cal is assumed.
C.
Total error shown represents the absolute value of possible error.
Figure 7-2. Typical ADC Total Error
[Temperature (°C) versus Total Error (LSBs)]
Table 7-2. External ADC Start-of-Conversion Switching Characteristics
over recommended operating conditions (unless otherwise noted)
PARAMETER
MIN
MAX
UNIT
t
w(ADCSOCL)
Pulse duration, ADCSOCxO low
32t
c(HCO)
cycles
Figure 7-3. ADCSOCAO or ADCSOCBO Timing
7.1.2
Comparator + DAC Units
shows the internal structure of the six analog Comparator + DAC units present in Concerto
devices. Each unit compares two analog inputs (A and B) and assigns a value of ‘1’ when the voltage of
the A input is greater than that of the B input, or a value of ‘0’ when the opposite is true. The six A inputs
and six B inputs come from AIO_MUX1 and AIO_MUX2. All six B inputs can also be provided by the 10-
bit digital-to-analog units that are present in each comparator DAC. The 10-bit value for each DAC unit is
programmed in the respective DACVAL register. Another comparator register, COMPCTL, can be
programmed to select the source of the B input, to enable or disable the comparator circuit, to invert
comparator output, to synchronize comparator output to C28x SYSCLK, and to select the qualification
period (number of clock cycles). All six output signals from the six comparators can be routed out to the
device pins via GPIO_MUX2 pin mux.
the A input is greater than that of the B input, or a value of ‘0’ when the opposite is true. The six A inputs
and six B inputs come from AIO_MUX1 and AIO_MUX2. All six B inputs can also be provided by the 10-
bit digital-to-analog units that are present in each comparator DAC. The 10-bit value for each DAC unit is
programmed in the respective DACVAL register. Another comparator register, COMPCTL, can be
programmed to select the source of the B input, to enable or disable the comparator circuit, to invert
comparator output, to synchronize comparator output to C28x SYSCLK, and to select the qualification
period (number of clock cycles). All six output signals from the six comparators can be routed out to the
device pins via GPIO_MUX2 pin mux.
158
Peripheral Information and Timings
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