UBA1707TS datasheet(21/36 Pages) PHILIPS

21 / 36 page

1999 Feb 17

Philips Semiconductors

Product speciﬁcation

Cordless telephone, answering machine

line interface

UBA1707

CHARACTERISTICS

Iline = 15 mA; VCC = 3.3 V; RSLPE =10 Ω; AGC pin connected to GND; Zline = 600 Ω; ZSET = 619 Ω; EHI = HIGH;

f = 1 kHz; Tamb =25 °C; bit AGC at logic 1, all other conﬁguration bits at logic 0; measured in test circuit of Fig.17;

unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply (pins VCC and GND; bit PD)

VCC

operating supply voltage

3.0

−

5.5

ICC

current consumption from

pin VCC

−

2.2

3.2

ICC(pd)

current consumption from

pin VCC in power-down mode

bit PD = 1

−

110

150

µA

Line interface (pins LN, SLPE and REG)

DC CHARACTERISTICS

Vref

stabilized voltage between

pins LN and SLPE

Iline = 11 to 140 mA

2.6

2.9

3.2

VLN

DC line voltage between pins

LN and GND

Iline =2mA

−

1.2

−

Iline =4mA

−

1.8

−

Iline = 15 mA

2.7

3.0

3.3

Iline = 140 mA

−

4.35

−

VLN(Rext)

DC line voltage between pins

LN and GND with an external

resistor RVA

RVA(SLPE−REG) =8kΩ−

4.5

−

∆VLN(T)

DC line voltage variation with

temperature referenced to

°C

Tamb = −25 to +75 °C

−

8.0

−

Masks regulation (pins LCC, LVI, CST and RGL; bit CRC)

DC CHARACTERISTICS

ILCC(max)

maximum current sunk by

pin LCC

500

−−

µA

Rint(LCC)

internal resistance between

pins VCC and LCC

−

165

−

Ω

Voltage regulation mode

ILVIV

current sourced from pin LVI

bit CRC = 0

−

200

−

Current regulation mode

Iknee

start line current for current

regulation mode

bit CRC = 1

−

RREGC

DC mask slope in current

regulation mode

Iline >Iknee; RLVI =1 MΩ;

RRGL = 7.15 kΩ; bit CRC = 1

−

1.4

−

Ω

Current limitation

Iprot

current limitation level

−

145

−

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