TSC2301IZQZR datasheet(5/92 Pages) TI

Teilenummer	TSC2301IZQZR

Bauteilbeschribung	PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC

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TSC2301

SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004

ELECTRICAL CHARACTERISTICS (continued)

At 25°C, HPV

DD = AVDD = DVDD = +3.3 V, VREF = External 2.5 V, unless otherwise noted.

TSC2301

Parameter

Conditions

Units

Min

Typ

Max

Output power per channel

R = 32

Ω

14

mW

R = 16

Ω

27

mW

R = 16

Ω V

DD = 3.6V

32

mW

Signal-to-noise ratio, A-weighted

85

96

dB

Total harmonic distortion

R = 32

Ω 1-kHz, 0-dB input

-83

-70

dB

R = 16

Ω 1-kHz, -3-dB input

-77

dB

D/A Converter

Output current range

Measured with ARNG floating

0.75

1.10

mA

Resolution

8

Bits

Voltage Reference

TSC2301IPAG

2.34

2.49

2.54

Voltage range

Internal 2.5 V

V

TSC2301IGQZ

2.34

2.49

2.64

ppm/°

Reference drift

50

C

Current drain

20

µA

Digital Input / Output

Internal clock frequency

8.8

MHz

Logic family

CMOS

Logic level: VIH

IIH = 5 µA

0.7 VDD

V

VIL

IIL = 5 µA

-0.3

0.3 VDD

V

VOH

IOH = 2 TTL loads

0.8* DVDD

V

VOL

IOL = 2 TTL loads

0.2* DVDD

V

Power Supply Requirements

Power supply voltage

DVDD, AVDD, HPVDD

2.7

3.6

V

Quiescent current (1)

Touch screen only

1-kHz SAR sample rate, external Vref

14

µA

20-kHz SAR sample rate, internal

Touch screen only

1.7

mA

Vref

Stereo playback only

44.1-kHz Playback, VDD = 2.7V

10

mA

Voice record only

Mono 8-kHz record, VDD = 2.7V

5.8

mA

Power down

Audio fully powered down

.05

µA

(1)

For more details on power consumption, see the Audio Codec section of the description overview.

5

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