参数资料
型号: TMX320LF2403AVFS
厂商: Texas Instruments, Inc.
元件分类: 数字信号处理
英文描述: DSP CONTROLLERS
中文描述: DSP控制器
文件页数: 10/134页
文件大小: 1759K
代理商: TMX320LF2403AVFS
TMS320LF2407A,TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145K JULY 2000 REVISED AUGUST 2005
107
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
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 VCCA and VSSA.
The power bus isolation is to enhance ADC performance by preventing digital switching noise of the logic
circuitry that can be present on VSS and VCC from coupling into the ADC analog stage. All ADC specifications
are given with respect to VSSA unless otherwise noted.
Resolution
10-bit (1024 values)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monotonic
Assured
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output conversion mode
000h to 3FFh (000h for VI ≤ VREFLO; 3FFh for VI ≥ VREFHI)
. . . . . . . . . . . . . . . . . . . .
Minimum conversion time (including sample time)
500 ns
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
MIN
NOM
MAX
UNIT
VCCA
Analog supply voltage
3.0
3.3
3.6
V
VSSA
Analog ground
0
V
VREFHI
Analog supply reference source
VCCA
V
VREFLO
Analog ground reference source
VSSA
V
VAI
Analog input voltage, ADCIN00ADCIN07
VREFLO
VREFHI
V
VREFHI and VREFLO must be stable, within ±1/2 LSB of the required resolution, during the entire conversion time.
VREFHI can be from 2.0 V to VCCA; however, the accuracy of the ADC depends on the ground bounce and noise on the target board.
ADC operating frequency
MIN
MAX
UNIT
ADC operating frequency
4
30
MHz
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