BL34118 View Datasheet(PDF) - Shanghai Belling Co., Ltd.

Part Name

Description

MFG CO.

BL34118

Voice Switched Speakerphone Circuit

Shanghai Belling Co., Ltd. 

FIGURE 14 – TYPICAL OUTPUT SWING versus Vcc

BL34118

TEMPERATURE CHARACTERISTICS

Parameter

Vcc Supply Current (CD = 0.8 V)

Vcc Supply Current (CD = 2.0 V)

VB Output Voltage (Vcc = 5.0 V)

Attenuator gain (Max Gain )

Attenuator Gain (Max Attenuation)

Attenuator Input Resistance (@ TXI, RXI)

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+)

Typical Value

@ 25 °C

5.0 mA

400 µA

2.1 V

+6.0 dB

-46 dB

10 kΩ

15 mV

± 60 µA

0 mV

1.0

4.0 µA

0 dB

Typical Change

–20 to +60 °C

- 0.3 %/°C

-0.4 %/°C

+0.8 %/°C

0.0008 dB/°C

0.004 dB/°C

+ 0.6 %/°C

+20 µV/°C

-0.15 %/°C

± 4.0 µV/°C

± 0.02 %/°C

-10 nA/°C

0.001 %/°C

http://www.belling.com.cn

-9-

Total 11 Pages

8/15/2006

Wrote by 2006

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