TDA1548TZ datasheet(13/20 Pages) PHILIPS

13 / 20 page

1995 Nov 15

Philips Semiconductors

Product speciﬁcation

Bitstream continuous calibration ﬁlter-DAC

with headphone driver and DSP

TDA1548T

AC CHARACTERISTICS (DIGITAL)

All voltages referenced to ground (pins 2, 9 and 23); VDDD =VDDA =VDDO = 2.7 to 4.0 V; Tamb = +70 °C, RL =32 Ω

(note 1); unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Tcy

clock cycle

fsys = 384fs

54.2

59.1

81.3

fsys = 256fs

81.3

88.6

122

fsys = 64fs

325.5

354.3

488.3

tCW(L)

fsys LOW level pulse width

−−

tCW(H)

fsys HIGH level pulse width

−−

Serial input data timing (see Fig.3)

clock input = data input rate

fsys = 384fs

−

48fs

−

fsys = 256fs

−

64fs

−

fsys = 64fs

−

64fs

−

fsys

system clock frequency

2.048

−

18.432

MHz

fWS

word select input frequency

−

44.1

48.0

kHz

rise time

−−

fall time

−−

tBCK(H)

bit clock HIGH time

−−

tBCK(L)

bit clock LOW time

−−

ts;DAT

data set-up time

−−

th;DAT

data hold time

−−

ts;WS

word select set-up time

−−

th;WS

word select hold time

−−

Fig.3 Timing of input signals.

handbook, full pagewidth

MGC670

BCK(H)

BCK(L)

h;WS

s;WS

s;DAT

h;DAT

SAMPLE OUT

Tcy

RIGHT

LEFT

BCK

DATA

LSB

MSB

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