UBA1707TS datasheet(24/36 Pages) PHILIPS

24 / 36 page

1999 Feb 17

Philips Semiconductors

Product speciﬁcation

Cordless telephone, answering machine

line interface

UBA1707

LOUDSPEAKER CHANNEL (PINS LSAI1, LSAI2, LSAO, DLC AND LSPGND;

BITS

LSA1, LSA2, LSPD, VOL0, VOL1, VOL2 AND DLCI)

Loudspeaker ampliﬁer

Zi

input impedance between pins

LSAI1 or LSAI2 and GND

bits LSA1 = 1, LSA2 = 1

−

Ω

Gv(LSA)

voltage gain from LSAI1 or

LSAI2 to LSAO for maximum

volume

VLSAI = 8 mV (RMS);

bits LSA1 = 1, LSA2 = 1

26.5

29.5

∆Gv(LSA)(f)

voltage gain variation with

frequency referenced to 1 kHz

VLSAI = 8 mV (RMS);

f = 300 to 3400 Hz

−±0.3

−

∆G

v(LSA)(T)

voltage gain variation with

temperature referenced to

°C

Tamb = −25 to +75 °C

−±0.3

−

VLSAI(rms)

maximum input voltage

between pins LSAI1 or

LSAI2 and GND (RMS value)

VCC = 5.0 V; Gv(LSA) = 7 dB;

for 2% of THD in input stage

−

500

−

Vno(LSAO)(rms) noise output voltage at

pin LSAO (RMS value)

pin LSAI1 (with bits

LSA1 = 1, LSA2 = 0) or pin

LSAI2 (with bits LSA1 = 0,

LSA2 = 1) connected to pin

GND through 200

Ω in series

with 10

µF;

psophometrically weighted

(P53 curve)

−−80

−

dBVp

Output capability

VLSAO(p-p)

output voltage capability at pin

LSAO (peak-to-peak value)

VCC = 5.0 V;

Gv(LSA) = 28 dB;

VLSAI = 100 mV (RMS);

RL =16 Ω

3.0

3.6

−

VCC = 3.3 V;

Gv(LSA) = 28 dB;

VLSAI = 100 mV (RMS);

RL =8 Ω

−

2.0

−

I

LSAO(max)

maximum current capability at

pin LSAO (peak value)

150

−−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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