UBA2050 查看數據表（PDF） - Philips Electronics

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UBA2050

One-chip telephone ICs with speech, dialler and ringer functions

Philips Electronics 

Philips Semiconductors

One-chip telephone ICs with speech,

dialler and ringer functions

Product specification

UBA2050(A); UBA2051(A;C)

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX. UNIT

Speech/transmission part

Iline

VLN

ICC

VCC

VDD

IDD

Gv(TX)

line current operating range

DC line voltage

internal current consumption

supply voltage for internal circuitry

(unregulated)

regulated supply voltage for peripherals

available supply current for peripherals

typical voltage gain for microphone

amplifier

normal operation

11 −

140 mA

with reduced performance 1

−

11 mA

Iline = 15 mA

4.05 4.35 4.65 V

VCC = 3.6 V

IP = 0 mA

−

1.25 1.5 mA

−

3.6 −

V

speech mode;

IDD = −2.6 mA

3.0 3.3 3.6 V

ringer mode; IDD = 75 mA 3.0 3.3 3.6 V

−

−

−2.6 mA

VMIC = 4 mV (RMS)

43.2 44.2 45.2 dB

Gv(RX)

typical voltage gain for receiving amplifier VIR = 4 mV (RMS)

32.4 33.4 34.4 dB

∆Gv(QR)

gain setting range for earpiece amplifier RE1 = 100 kΩ

−14 −

+12 dB

∆Gv(trx)

gain control range for microphone and

Iline = 85 mA; referenced to −

6.0 −

dB

receive amplifiers

Iline = 15 mA

∆Gv(trx)(m) gain reduction for microphone and receive in DTMF mode

amplifiers

−

80 −

dB

Dialler part

VHG(LN)(rms)

VLG(LN)(rms)

GV

THD

high group frequency voltage (RMS value)

on line

low group frequency voltage (RMS value)

on line

pre-emphasis of group

total harmonic distortion

RDTMF1 = 20 kΩ;

RDTMF2 = 2.74 kΩ

RDTMF1 = 20 kΩ;

RDTMF2 = 2.74 kΩ

353 435 536 mV

277 341 420 mV

1.5 2.0 2.5 dB

−

−25 −

dB

Ringer part

fring

ringer detection frequency

13 −

−

Hz

2000 May 19

4

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