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