SA545
DC ELECTRICAL CHARACTERISTICS
(V
DD
= 2,5V at 25°C, unless otherwise specified)
Condition
Supply voltage:
on-hook
off-hook
Hookswitch input: on-hook
off-hook
0,8 V
DD
Supply Current: on-hook
SA54X53
<0.2
SA54X56
<0.2
SA54X59
<0.2
off-hook
1,5
MF tone sending
LD impulsing
Output High Voltage
2,2
(MASK, MUTE and IMP Outputs)
Output Low Voltage
(MASK, MUTE and IMP Outputs)
MF OUT d.c. Level During Tone Sending
0,9V
DD
MF OUT Output Resistance
'Key Pressed' Resistance
'Key Not Pressed' Resistance
Darlington Pair Current Gain
500
600
50,000
3
2
Min
1,8
2,4
Typ
Max Unit
5,7
V
5,7
V
0,2 V
DD
Notes
For memory retention
5
1
1
1,0
200
µA
µA
µA
µA
mA
µA
V
V
V
K
Ω
K
Ω
K
Ω
V
DD
= 2.5V
V
DD
= 2.5V
V
DD
= 3V
If MF OUT is low
I = -1mA
I = +1mA
0,3
2,5V<V
DD
<5,7V
2,5V<V
DD
<5,7V
I
e
=100µA,V
ce
=2V
AC ELECTRICAL CHARACTERISTICS
(V
DD
= 2,5V at 25°C, unless otherwise specified)
Condition
Oscillating Frequency
Tone Output: Low Group
High Group
High-to-Low Group Amplitude Ratio
Total harmonic Distortion: 0-4KHz
0-10KHz
0-50KHz
0-200KHz
Min
68
1,5
Typ
560
77
97
2
1,5
2,5
5,0
6,5
Max
Unit
kHz
mVrms
109 mVrms
2,5
dB
%
%
%
10
%
Notes
No Load
No Load
at MF OUT
sames
3/18
SAMES [ SAMES ]
