SA5456 Ver la hoja de datos (PDF) - South African Micro Electronic Systems

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SA5456

PULSE/DTMF SWITCHABLE DIALLERS WITH 10 REPERTORY MEMORIES

South African Micro Electronic Systems 

SA545

DC ELECTRICAL CHARACTERISTICS

(V = 2,5V at 25°C, unless otherwise specified)

DD

Condition

Min Typ Max Unit

Supply voltage: on-hook

off-hook

1,8

5,7

V

2,4

5,7

V

Hookswitch input: on-hook

off-hook

Supply Current:

on-hook

SA54X53

SA54X56

SA54X59

off-hook

MF tone sending

LD impulsing

0,8 VDD

0,2 VDD

<0.2 5 µA

<0.2 1 µA

<0.2 1 µA

1,5

µA

1,0 mA

200 µA

Output High Voltage

2,2

V

(MASK, MUTE and IMP Outputs)

Output Low Voltage

0,3

V

(MASK, MUTE and IMP Outputs)

MF OUT d.c. Level During Tone Sending

0,9VDD

V

MF OUT Output Resistance

3

KΩ

'Key Pressed' Resistance

2 KΩ

'Key Not Pressed' Resistance

500

KΩ

Darlington Pair Current Gain

600 50,000

Notes

For memory retention

VDD = 2.5V

VDD = 2.5V

VDD = 3V

If MF OUT is low

I = -1mA

I = +1mA

2,5V<VDD<5,7V

2,5V<V <5,7V

DD

Ie=100µA,Vce=2V

AC ELECTRICAL CHARACTERISTICS

(V = 2,5V at 25°C, unless otherwise specified)

DD

Condition

Min Typ

Oscillating Frequency

Tone Output: Low Group

High Group

560

68 77

97

High-to-Low Group Amplitude Ratio 1,5 2

Total harmonic Distortion: 0-4KHz

1,5

0-10KHz

2,5

0-50KHz

5,0

0-200KHz

6,5

Max Unit

kHz

mVrms

109 mVrms

2,5 dB

%

%

%

10 %

Notes

No Load

No Load

at MF OUT

sames

3/18

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