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NXP Semiconductors

Product specification

Economy audio CODEC for MiniDisc (MD) home stereo and portable applications

UDA1341TS

SYMBOL Digital input pins

PARAMETER

CONDITIONS

VIH V | I L C i I | IL

HIGH-level input voltage LOW-level input voltage input leakage current input capacitance

Digital output pins

VOH V

OL

HIGH-level output voltage LOW-level output voltage

Analog-to-digital converter

VADCP V R R

ADCN

o(ref)

i

positive reference voltage negative reference voltage Vref reference output resistance input resistance

IOH I OL

= 2 mA = 2 mA

pin 28 measured at 1 kHz

stand-alone mode double differential mode

Ci

input capacitance

Programmable gain amplifier (input channel 2)

Ri

input resistance

microphone mode

double differential mode

0.8VDDD 0.5

0.85VDDD

0.0

VDDA 0.0 24

12.5 6.25 20

12.5 >1

V

0.0

V

kΩ

kΩ

kΩ

pF

MIN.

kΩ

MΩ

V

0.4

V

TYP.

MAX.

UNIT

VDDD 0.2V 10 10 + 0.5 V V μA pF DDD

0.13

3.0

Ω

0.22

mA

3

kΩ

50

pF

0.45VDDA

0.5VDDA

0.55VDDA

V

  • 1.

    All power supply pins (VDD and VSS) must be connected to the same external power supply unit.

  • 2.

    When higher capacitive loads (above 50 pF) must be driven then a resistor of 100 Ω must be connected in series

with the DAC output in order to prevent oscillations in the output operational amplifier.

Reference voltage

(THD + N)/S < 0.1%

note 2

with respect to VSSA

Digital-to-analog converter

Ro I R C L L o(max)

output resistance maximum output current load resistance load capacitance

Vref Notes

reference voltage

2002 May 16

23

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