MC34118-S28-T

更新时间： 2024-02-27 05:05:20

品牌	Logo	应用领域
友顺 - UTC		电话
页数	文件大小	规格书
12页	297K
描述
VOICE SWITCHED SPEAKER-PHONE CIRCUIT

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数据手册

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MC34118-S28-T 数据手册

MC34118

LINEAR INTEGRATED CIRCUIT

ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Transmit Attenuator Gain (f=1kHz)

T_XMode, T_XI=150mVrms

Idle Mode, T_XI=150mVrms

T_Xto Rx Mode Range

T_XO DC Voltage

G_TX

G_TXI

-22

-20

-17

ΔG_TXI

V_TXO

T_X

ΔT_XODC Voltage

T_XOHigh Voltage

ΔV_TXOT_Xto R_XMode

V_TXOHI_OUT=-1mA, T_XI=V_B+1.5V

+-30 +-150 mV

3.7

I_OUT=+1mA, T_XI=V_B-1V,

Output Measured with

Respect to V_B

T_XOLow Voltage

V_TXOL

-1.5

-1

T_XIInput Resistance

Gain Tracking

R_TXI

G_TR

T_XI<350mVrs

G_RX+G_TX, @T_X, I_DIE, R_X

kꢀ

+-0.1

Attenuator Control

R_XMode

V_LC=V_B

240

µA

kꢀ

CT Voltage ( CT-V_B)

Idle Mode

T_XMode

-240

-60

CT Source Current

I_CTR

I_CTT

I_CTS

R_FI

(Switching to R_XMode)

(Switching to T_XMode)

-85

-40

CT Sink Current

+40 +60 +85

CT Slow Idle Current

CT Fast Idle Internal Resistance

VLC Input Current

1.5

3.6

I_VLC

V_DT

-60

Dial Tone Detector Threshold

Microphone Amplifier ( V_MUT< 0.8V, A_VCL=31dB, unless otherwise specified)

Output Offset

M_COVOSV_MCO-V_B, R_F=180 kꢀ

-50

Open Loop Gain

Gain Bandwidth

Output High Voltage

Output Low Voltage

Input Bias Current

A_VOLM

G_BWM

F<100Hz

MHz

V_MCOHI_OUT=1mA, V_CC=5V

3.7

-55

V_MCOL

I_BM

I_OUT=1mA

200 mV

@MCI

-40

f=1kHz, V_MUT=2V

300Hz<f<10kHz

V_CC=V_MUT=6.5V

Muting(ΔGain)

G_MT

-68

MUT Input Resistance

MUT High Input Voltage

R_MUT

V_MUTH

V_MUTL

kꢀ

Vcc

0.8

MUT Low Input Voltage

Distortion

THD_M300Hz<f<10kHz

0.15

HYBID AMPLIFIER

HTO-Offset

H_VOS

H_BVOS

A_VOLH

G_BWH

A_VCLH

I_BH

V_HTO-~V_B, R_F=51kꢀ

R_F=51kꢀ

-20

-30

HTO- to HTO+ Offset

Open Loop Gain

Gain Bandwidth

H_TIto H_TO-, F<100Hz

MHz

Closed Loop Gain

Input Bias Current(@HTI)

HTO- High Voltage

HTO- Low Voltage

HTO+ High Voltage

HTO+ Low Voltage

Distortion

H_TO-to H_TO+

-0.35

3.7

0.35 dB

-30

V_HT-H

V_HT-L

V_HT+H

V_HT+L

I_OUT=-5mA

I_OUT=+5mA

I_OUT=-5mA

I_OUT=+5mA

250 mV

3.7

450 mV

THD_M300Hz<f<10kHz

0.3

UNISONIC TECHNOLOGIES CO., LTD

5 of 12

www.unisonic.com.tw

QW-R108-007,D

1 2 3 456 7 8...12

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