TDA1548TZ datasheet(11/20 Pages) PHILIPS

tên linh kiện	TDA1548TZ

Giải thích chi tiết về linh kiện	Bitstream continuous calibration filter-DAC with headphone driver and DSP

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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11 / 20 page

1995 Nov 15

11

Philips Semiconductors

Product speciﬁcation

Bitstream continuous calibration ﬁlter-DAC

with headphone driver and DSP

TDA1548T

DC CHARACTERISTICS

All voltages referenced to ground (pins 1, 11 and 24); VDDD =VDDA =VDDO =3V; Tamb =25 °C, RL =32 Ω (note 1);

common operational ampliﬁer application; unless otherwise speciﬁed.

Notes

1. RL is the AC impedance of the external circuitry connected to the audio outputs of the application circuit.

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

3. No operational amplifier load resistor.

4. Load capacitance greater than 50 pF, an inductor of 22

µH connected in parallel with a resistor of 270 Ω must be

inserted between the load and the operational amplifier output.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VDDD

digital supply voltage pin 10

note 2

2.7

3.0

4.0

V

VDDA

analog supply voltage pin 23 note 2

2.7

3.0

4.0

V

VDDO

opamp supply voltage pin 28 note 2

2.7

3.0

4.0

V

IDDD

digital supply current

at digital silence

−

4.5

−

mA

IDDA

analog supply current

at digital silence

−

4.5

−

mA

IDDO

opamp supply current

at digital silence; note 3

−

6.0

−

mA

Ptot

total power dissipation

note 3

−

50

−

mW

Digital inputs

VIH

HIGH level input voltage on

pins 5 to 9 and 12 to 17

0.7VDDD

−−

V

VIL

LOW level input voltage on

pins 5 to 9 and 12 to 17

−−

0.3VDDD

V

|ILI|

input leakage current on

pins 7 to 9 and 12 to 17

−−

10

µA

CI

input capacitance on

pins 5 to 9 and 12 to 17

−−

10

pF

Analog inputs pins ADVC, ADBB, ADTR and AD3S

RES

input resolution

−−

6

bit

CI

input capacitance

−

10

−

pF

RI

input resistance

pins ADBB, ADTR and ADVC

1

−−

M

Ω

pin AD3S

−

20

−

k

Ω

Analog reference pin ADref

VADref

reference voltage pin 18

0.45VDDA

0.5VDDA

0.55VDDA

V

RL(ADref)

reference output load pin 18

3.0

−−

k

Ω

Analog audio pins

Vref

reference voltage pin 25

with respect to VSSO

0.45VDDA

0.5VDDA

0.55VDDA

V

RO

output resistance pin 25

−

3

−

k

Ω

RCONV

current-to-voltage

conversion resistor

−

1.2

−

k

Ω

IO(max)

maximum output current

(THD + N)/S < 0.1%

−

35

−

mA

CL

output load capacitance

note 4

−−

50

pF

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