UTCTEA1062A 查看數據表（PDF） - Unisonic Technologies

零件编号

产品描述 (功能)

生产厂家

UTCTEA1062A

LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE

Unisonic Technologies 

UTCTEA1062/1062A LINEARINTEGRATEDCIRCUIT

R10

130Ω

BAS11

(x2)

Telephone

Line

BZW14

(x2)

BZX79

C12

R1

620Ω

R2

132kΩ

C5

100nF

1

10

LN

IR

13

VCC

C1

100 µF

C2

R3

3.92kΩ

R4

C4 4 QR

100pF

5 GAR

UTC TEAI062/A

DTMF 11

C7

7 MIC+

1nF

6

MIC-

12

MUTE

R8

390Ω

Zbal

R9

20Ω

SLPE GAS1 GAS2

16

2

3

C6

100pF R7

REG AGC STAB VEE

14

15

89

RVA(R16.R14)

C8

C3

R6

R5

3.6kΩ

1nF

4.7 µF

From dial and

control circuits

Fig.15 Typical application of the UTC TEA1062A ,shown here with a piezoelectric earpiece and DTMF dialling. The

bridge to the left ,the Zener diode and R10 limit the current into the circuit and the voltage across the circuit during line

transients.Pulse dialling or register recall required a different protection arrangement.

The DC line voltage can be set to a higher value by resistor RVA(REG to SLPE).

CARDLE

CONTRAT

TELEPHONE

LINE

LN VCC

DTMF

UTC1062A

MUTE

VEE

VDD

DTMF

dialling

circuit

M1

VSS DP/FL

BSN254A

Fig.16 Typical applications of the UTC TEA1062/1062A (simplified)

The dashed lines show an optional flash ( register recall by timed loop break).

UTC UNISONIC TECHNOLOGIES CO., LTD. 13

QW-R108-001,A

Share Link: