參數(shù)資料
型號: TSC2101IRGZG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQCC48
封裝: GREEN, PLASTIC, VQFN-48
文件頁數(shù): 34/95頁
文件大?。?/td> 1217K
代理商: TSC2101IRGZG4
TSC2101
SLAS392D JUNE 2003 REVISED MAY 2005
www.ti.com
4
ELECTRICAL CHARACTERISTICS
At +25°C, AVDD1, AVDD2, DRVDD, IOVDD = 3.3 V, BVDD = 3.9 V, DVDD = 1.8 V, Vref = 2.5 V, Fs (Audio) = 48 kHz, unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
TOUCH SCREEN
AUXILIARY ANALOG INPUT
Input voltage range
0
+VREF
V
Input capacitance
AUX1/2 input selected as input by touch-screen
25
pF
Input leakage current
AUX1/2 input selected as input by touch screen
±1
A
BATTERY MONITOR INPUTS
Input voltage range
0.5
6.0
V
Input leakage current
Battery conversion not selected
±1
A
Accuracy
Variation across temperature after system
calibration at 4 V battery voltage and room
temperature
±15
mV
TOUCH SCREEN A/D CONVERTER
Resolution
Programmable: 8-, 10-,12-bits
8
12
Bits
No missing codes
12-Bit resolution
11
Bits
Integral nonlinearity
5
LSB
Offset error
6
LSB
Gain error
6
LSB
Noise
50
Vrms
VOLTAGE REFERENCE (VREF)
VREF output programmed = 2.5 V
2.3
2.5
2.7
V
Voltage range
VREF output programmed = 1.25 V
1.25
V
Voltage range
External reference
1.1
2.5
V
Reference drift
Internal VREF = 1.25 V
50
ppm/°C
Current drain
Extra current drawn when the internal reference is
turned on.
750
A
AUDIO CODEC
ADC DECIMATION FILTER CHARACTERISTICS
Filter gain from 0 to 0.39 Fs
±0.1
dB
Filter gain at 0.4125 Fs
0.25
dB
Filter gain at 0.45 Fs
3.0
dB
Filter gain at 0.5 Fs
17.5
dB
Filter gain from 0.55 Fs to 64 Fs
75
dB
Group delay
17/Fs
sec
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