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| SA545 Datasheet, PDF (3/18 Pages) Sames – PULSE/DTMF SWITCHABLE DIALLERS WITH 10 REPERTORY MEMORIES | |||
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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
Kâ¦
'Key Pressed' Resistance
2 Kâ¦
'Key Not Pressed' Resistance
500
Kâ¦
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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