TLV320AIC27

STEREO AUDIO CODEC

SLAS253 – MARCH 2000

7

POST OFFICE BOX 655303

noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Digital Logic Levels (DVDD = 3.3 V or 5 V)

VIL

Input low level

AVSS – 0.3

0.8

V

VIH

Input high level

2.2

AVDD + 0.3

V

VOL

Output low

0.1

× DVDD

V

VOH

Output high

0.9

× DVDD

V

Analog I/O Levels (input signals on any inputs, outputs on LINEOUT L, R, and MONOOUT)

Input level

Minimum input

impedance = 10 k

Ω

AVSS –100 mV

AVDD +100 mV

V

Output level

Into 10 k

Ω load

AVSS +100 mV

Near rail

to rail

AVDD –100 mV

V

Reference Levels

CAP2

Reference input/output

2/5 AVDD

AVDD/2

3/5 AVDD

V

CAP2 impedance

75

k

Ω

VREF

Mixer reference

Buffered

CAP2

V

VREFOUT

MIC reference

Buffered

CAP2

V

CAP1

ADC reference

Buffered

CAP2

V

AFILT1

DAC reference

Buffered

CAP2

V

VREF current source (pins CAP1, AFILT2,

VREF and VREFOUT)

AVDD = 3 V

5

15

mA

VREF current source (pins CAP1, AFILT1,

VREF and VREFOUT)

AVDD = 5 V

3

5

mA

DAC Circuit Specifications (AVDD = 5 V) 48-kHz sampling

SNR A-weighted (see Note 1)

85

95

dB

Full-scale output voltage

VREF = 2.5 V

1

Vrms

THD

–3-dB full-scale input

74

96

dB

Frequency response

20

19 200

Hz

Transition band

19 200

28 800

Hz

Stop band

28 800

Hz

Out of band rejection

–40

dB

Spurious-tone reduction

–100

dB

PSRR

20 Hz to 20 kHz

40

dB

ADC Circuit Specifications (AVDD = 5 V) 48-kHz sampling

SNR A-weighted (see Note 1)

75

90

dB

ADC input for full-scale output

VREF = 2.5 V

1

Vrms

THD

–6-dB voltage input

80

95

dB

Frequency response

20

19 200

Hz

Transition band

19 200

28 800

Hz

Stop band

28 800

Hz

Stop-band rejection

–74

dB

PSRR

20 Hz to 20 kHz

40

dB

NOTE 1: SNR is the ratio of 0-dB signal output level to the output level with no signal, measured A-weighted over a 20 Hz to 20 kHz bandwidth.