Datasheet

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ELECTRICAL CHARACTERISTICS
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
At 25 °C, HPV
DD
= AV
DD
= DV
DD
= +3.3 V, V
REF
= External 2.5 V, unless otherwise noted.
TSC2301
Parameter Conditions Units
Min Typ Max
Auxilary Analog Inputs
Input voltage range 0 +VREFIN V
Input capacitance 25 ρ F
Input leakage current 1 µA
Battery Monitor Input
Input voltage range 0 6.0 V
Input capacitance 25 ρ F
Input leakage current ±1 µA
Temperature Measurement
Temperature range -40 +85 °C
Temperature resolution 0.3 °C
Accuracy ±2 °C
Touch Screen A/D Converter
Resolution Programmable: 8-, 10-,12-Bits 12 Bits
No missing codes 12-bit resolution 10 Bits
Integral linearity ±6 LSB
Offset error ±6 LSB
TSC2301IPAG ±6
Gain error LSB
TSC2301IGQZ ±10
µV
Noise <300
RMS
Audio Codec
Sampling frequency 48 kHz
Audio I/O
Audio in Line, Mic inputs 0.15* AVDD 0.65* AVDD V
Audio out Line outputs 0.15* AVDD 0.65* AVDD V
ADC performance measured using
Audio ADC
Fs = 48 kHz
Signal-to-noise ratio, A-weighted No input 80 88 dB
Total harmonic distortion 1 kHz, -0.5 dB input -70 -60 dB
0.18*
Full-scale input voltage Vrms
AVDD
Transition band 0.45 Fs 0.55 Fs Hz
Stop band 0.55 Fs 127 Fs Hz
Stop band rejection 70dB
DAC performance measured at Line
Audio DAC
Outputs using Fs = 48 kHz
0.18*
Full-scale output voltage Vrms
AVDD
Signal-to-noise ratio, A-weighted No input 98 dB
Total harmonic distortion 1-kHz, 0-dB input -100 dB
Frequency response 20 0.45 Fs Hz
Transition band 0.45 Fs 0.55 Fs Hz
Stop band 0.55 Fs 3.5 Fs Hz
Stop band rejection 65 dB
DAC playback through headphone
Headphone Driver
driver
4