KA2425B datasheet(4/6 Pages) SAMSUNG

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KA2425A

SPEECH NETWORK WITH DIALER INTERFACE

ELECTRICAL CHARACTERISTICS

(Continued)

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

DIALING INTERFACE

MT Input Resistance

R1 (MT)

100

Ω

MT Input High Voltage

VIH (MT)

VDD-0.3

Vdc

MT Input Low Voltage

VIL (MT)

1.0

Vdc

MS Input Resistance

RI (MS)

280

600

Ω

MS Input High Voltage

VIH (MS)

2.0

Vdc

MS Input Low Voltage

TI Input Resistance

VIL MS)

RI (T1)

1.25

0.3

Vdc

Ω

DTMF Gain

GV (MF)

3.2

4.8

6.2

LINE INTERFACE

V+ Current (Pin 12 Grounded)

Speech Mode

Speech/Pulse Modes

Tone Mode

V+ = 1.7V

V+ = 12V

4.5

5.5

6.0

7.1

8.4

8.8

9.0

12.5

14.0

V+ Voltage

Speech/Pulse Mode

Tone Mode

V+

IL = 20mA

IL = 30mA

IL = 120mA

IL = 20mA

IL = 30mA

2.6

3.0

7.0

4.1

4.5

3.2

3.7

8.2

4.9

6.4

3.8

4.4

9.5

5.7

6.2

Vdc

LR Level Shift

Speech/Pulse Mode

Tone Mode

∆ V

V + -VLR

2.7

4.3

Vdc

LC Terminal Resistance

RLC

Ω

VOLTAGE REGULATORS

VR Voltage

Load Regulation

Line Regulation

∆ V

(V+ = 1.7V)

0mA < IR < 1.6mA

2.0V < V + < 6.5V

1.1

1.2

1.3

Vdc

VDD Voltage

Load Regulation (Dialing Mode)

Line Regulation (All Modes)

Max. Output

Current

Max. Output

Current

VDD

∆ V

O (DM)

∆ V

O (AM)

IOSM (MAX)

IODM (MAX)

(V+ = 4.5V)

0 < IDD < 1.6mA

4.0V < V + < 9.0V

Speech Mode

Dialing Mode

3.0

375

1.6

3.3

0.25

550

2.0

3.8

1000

3.6

Vdd

µA

VDD Leakage Current

ILKG (VDD)

V + = 0, VDD = 3.0V

1.5

µA

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