參數(shù)資料
型號(hào): TMS320C240PQL
英文描述: 16-Bit Microcontroller
中文描述: 16位微控制器
文件頁數(shù): 93/105頁
文件大小: 1481K
代理商: TMS320C240PQL
TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
93
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
10-bit dual analog-to-digital converter (ADC)
The 10-bit dual ADC has a separate power bus for its analog circuitry. These pins are referred to as V
CCA
and
V
SSA
. The purpose 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
SSA
; 3FFh for V
I
V
CCA
)
. . . . . . . . . . . . . . . . . . . . . . .
10-bit (1024 values)
Assured
recommended operating conditions
MIN
NOM
MAX
UNIT
VCCA
VSSA
VREFHI
VREFLO
VAI
VREFHI and VREFLO must be stable, within
±
1/2 LSB of the required resolution, during the entire conversion time.
Analog supply voltage
4.5
5
5.5
V
Analog ground
Analog supply reference source
Analog ground reference source
0
V
VREFLO
VSSA
VSSA
VCCA
VREFHI
VCCA
V
V
Analog input voltage, ADCIN0–ADCIN15
V
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