參數(shù)資料
型號(hào): TMS320LC2407AVFS
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: DSP CONTROLLERS
中文描述: DSP控制器
文件頁數(shù): 107/134頁
文件大?。?/td> 1759K
代理商: TMS320LC2407AVFS
TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145K
JULY 2000
REVISED AUGUST 2005
107
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
10-bit analog-to-digital converter (ADC)
The 10-bit ADC has a separate power bus for its analog circuitry. These pins are referred to as V
CCA
and V
SSA
.
The power bus isolation is to enhance ADC performance by preventing digital switching noise of the logic
circuitry that can be present on V
SS
and V
CC
from coupling into the ADC analog stage. All ADC specifications
are given with respect to V
SSA
unless otherwise noted.
Resolution
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monotonic
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output conversion mode
000h to 3FFh (000h for V
I
V
REFLO
; 3FFh for V
I
V
REFHI
)
. . . . . . . . . . . . . . . . . . . .
Minimum conversion time (including sample time)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-bit (1024 values)
Assured
500 ns
recommended operating conditions
MIN
NOM
MAX
UNIT
V
CCA
V
SSA
V
REFHI
V
REFLO
V
AI
V
REFHI
and V
REFLO
must be stable, within
±
1/2 LSB of the required resolution, during the entire conversion time.
V
REFHI
can be from 2.0 V to V
CCA
; however, the accuracy of the ADC depends on the ground bounce and noise on the target board.
Analog supply voltage
3.0
3.3
3.6
V
Analog ground
Analog supply reference source
Analog ground reference source
0
V
V
CCA
V
V
SSA
V
Analog input voltage, ADCIN00
ADCIN07
V
REFLO
V
REFHI
V
ADC operating frequency
MIN
MAX
UNIT
ADC operating frequency
4
30
MHz
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