MC34118-D28-T Просмотр технического описания (PDF) - Unisonic Technologies

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MC34118-D28-T

VOICE SWITCHED SPEAKER-PHONE CIRCUIT

Unisonic Technologies 

MC34118

LINEAR INTEGRATED CIRCUIT

„ ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

Level Detectors And Background Noise Monitors

Transmit-Receive Switching

Threshold( Ratio of Current at RLI1+RLI2 to

ITH

20μA at TLI1+TLI2 to Switch from Tx to Rx)

Source Current at RLO1, RLO2, TLO1, TLO2

ILSO

Sink Current at RLO1, RLO2, TLO1, TLO2

CPR, CPT Output Resistance

ILSK

RCP IOUT =1.5mA

CPR, CPT Leakage Current

Filter

ICPLK

Voltage Offset at FO

FO Sink Current

FOVOS

IFO

VFO-VB, 220kΩ from VB to FI

FI Bias Current

IFI

SYSTEM Distortion (f=1kHz)

RX Mode

TX Mode

THDR

THD

from FI to RXO,

FO connected to RXI

from MCI to HTO-/HTO+,

includes TX attenuator

„ TEMPERATURE PARAMETERS

MIN TYP MAX UNIT

0.8 1 1.2

-2

mA

4

µA

35

Ω

-0.2

µA

-200 -90 0 mV

150 260 400 µA

-50

nA

0.5 3 %

0.8 3 %

PARAMETER

VCC Supply Current(CD=0.8V)

VCC Supply Current(CD=2V)

VB Output Voltage (VCC =5V)

Attenuator Gain (Max Gain)

Attenuator Gain (Max Attenuation)

Attenuator Input resistance

Dial Tone Detector Threshold

CT Source, Sink Current

Microphone, Hybrid Amplifier Offset

Transmit-Receive Switching Threshold

Sink Current at RLO1, RLO2, TLO1, TLO2

Closed Loop Gain( HTO- to HTO+)

TYP RATINGS (Ta=25°С)

5mA

400µA

2.1V

6

-46dB

10kΩ

15mV

±60µA

0mV

1

4µA

0dB

TYP CHANGE

-0.3

-0.4

+0.8

0.0008

0.004

0.6

20

-0.15

±4

±0.02

-10

0.001

UNIT

%/°С

%/°С

%/°С

dB/°С

dB/°С

%/°С

µV/°С

%/°С

µV/°С

%/°С

nA/°С

%/°С

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

6 of 12

QW-R108-007,D

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