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TSC2101 Datasheet(PDF) 4 Page - Texas Instruments

Part No. TSC2101
Description  AUDIO CODEC WITH INTEGRATED HEADPHONE, SPEAKER AMPLIFIER AND TOUCH SCREEN CONTROLLER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TSC2101 Datasheet(HTML) 4 Page - Texas Instruments

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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
µA
BATTERY MONITOR INPUTS
Input voltage range
0.5
6.0
V
Input leakage current
Battery conversion not selected
±1
µA
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
5
LSB
Offset error
−6
6
LSB
Gain error
−6
6
LSB
Noise
50
µVrms
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
µA
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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