參數(shù)資料
型號： TSC2100IDARG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO32
封裝： GREEN, PLASTIC, TSSOP-32
文件頁數(shù)： 34/76頁
文件大小： 1143K
代理商： TSC2100IDARG4
TSC2100
SLAS378 NOVEMBER 2003
www.ti.com
4
ELECTRICAL CHARACTERISTICS
At +25°C, AVDD,DRVDD,IOVDD = 3.3 V, DVDD = 1.8 V, Int. 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
AUX selected as input to touch screen ADC
25
pF
Input leakage current
AUX selected as input to touch screen ADC
±1
A
BATTERY MONITOR INPUTS
Input voltage range
0.5
6.0
V
Input leakage current
Battery conversion not selected
±1
A
TOUCH SCREEN A/D CONVERTER
Resolution
Programmable: 8-, 10-,12-bits
12
Bits
No missing codes
12-bit resolution
11
Bits
Integral nonlinearity
5
LSB
Offset error
6
LSB
Gain error
Calculated with effect of internal reference
variation removed.
6
LSB
Noise
53
Vrms
AUDIO CODEC
ADC DECIMATION FILTER
Sample rate of 48 ksps
Filter gain from 0 to 0.39Fs
±0.1
dB
Filter gain at 0.4125Fs
0.25
dB
Filter gain at 0.45Fs
3
dB
Filter gain at 0.5Fs
17.5
dB
Filter gain from 0.55Fs to 64Fs
75
dB
Filter group delay
17/Fs
Sec
MICROPHONE INPUT TO ADC
1 kHz sine wave input, Fs = 48 ksps
Full scale input voltage (0 dB)
By design, not tested in production
0.707
Vrms
Input common mode
By design, not tested in production
1.35
V
SNR
Measured as idle channel noise, 0-dB gain,
A-weighted
80
92
dBA
THD
0.63-Vrms input, 0-dB gain
89
72
dB
PSRR
1 kHz, 100 mVpp on AVDD.(1)
57
dB
Mute attenuation
Output code with 0.63-Vrms sine wave input at
1 kHz
0000H
Input resistance
20
k
Input capacitance
10
pF
MICROPHONE BIAS
Voltage
D4 = 0 control register 05H/Page2
2.5
V
g
D4 = 1 control register 05H/Page2
2.0
V
Sourcing current
4.7
mA
(1) ADC PSRR measurement is calculated as:
PSRR + 20 log10
VSIGsup
VADCOUT
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TSC2100IRHBRMULT1 制造商:Texas Instruments 功能描述:
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