ELECTRICAL CHARACTERISTICS

The block diagram is given in Figure 1.

The values of the different networks used in this datasheet are defined as followed :

- The return loss is adjusted by R10 of 600

Ω.

- The sidetone network ZST is set to be lower than 20dB (Vear/Vmic) on a 600

Ω load on line.

- The DC characteristics are set by a resistor of 82k

Absolute Maximum Ratings

Symbol

Parameter

Value

Unit

Authorized Voltage on

Pin 2 - RECIN

Pin 3 - SN

Pin 10 - IVLS

Pin 17 - BUZ

Pin 19 - RES

Pin 20 - PON

Pin 21 - RI

Pin 22 - OSC

Pin 23 - MSK

Pin 24 - DATA

Pin 25 - DCL

13

12

11

6

12

6

27

5

V

V

V

V

V

V

V

V

V

V

V

V

V

V

V

V

Line Current

120

mA

Ring Current

50

mA

Operating Temperature

-25, +70

°C

Storage Temperature

-55, +150

°C

Junction Temperature

-25, +150

°C

°C ; Logic in Default Mode unless otherwise noted)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Line Voltage

- In Speech and DTMF Mode

- In Mask Mode

Test 1

4

6.7

4.6

7.5

5.2

8.3

3

V

V

V

Stabilized Supply Voltage

- Output Current

1.5

mA

- Output Voltage

IRMC = 1.5mA

3.15

3.35

3.55

V

Unstabilized Supply Voltage

- Start up Current

- Output Current

10

15

3

mA

mA

Line Current Source Supply

10

67

14

75

18

82

mA

mA

TEA7089A

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