Le79555
Data Sheet
Power Dissipation
Description
On-hook, Standby state
Test Conditions (See Note 1)
RL = Open
Min
Min
Typ
45
Max
70
Unit
Note
RL = Open
On-hook Active State
Off-hook, Standby state
Off-hook Active State
130
860
350
190
1200
400
mW
Supply Currents
Description
Test Conditions (See Note 1)
Standby State
Typ
2.5
Max
3.2
Unit
Note
Active/Polarity Reversed States
Open Circuit, RL = Open
4.55
2.5
6.0
I
,
CC
On-hook V
supply current
CC
Ringing, RL = Open
6.0
0.65
2.3
mA
Standby State
Active/Polarity Reversed States
Open Circuit, RL = Open
0.9
4.0
I
,
BAT
On-hook V
supply current + V
BAT
REG
0.5
supply current
Ringing, RL = Open
1.5
RFI Rejection
Description
Test Conditions (See Note 1)
100 kHz to 30 MHz, (See Figure 8)
Min
Min
Typ
Max
1.0
Unit
mVrms
Note
4
VAB, RMS
Receive Summing Node (RSN)
Description
Test Conditions (See Note 1)
IRSN = 0 mA
Typ
0
Max
Unit
V
Note
RSN DC voltage
4
RSN impedance
200 Hz to 3.4 kHz
10
20
Ω
Logic Inputs
(C3-C1, D2-D1, and CHCLK)
Description
VIH, Input High voltage
Test Conditions (See Note 1)
Min
2.0
Typ
Typ
Max
Unit
Note
Note
V
VIL, Input Low voltage
0.8
40
I
IH, Input High current
–75
µA
IIL, Input Low current
–400
Logic Output DET
Description
Test Conditions (See Note 1)
Min
Max
Unit
I
I
= 0.3 mA
V
V
OL, Output Low voltage
0.40
OUT
V
= –0.1 mA
OH, Output High voltage
2.4
OUT
Ring-Trip Detector Input
(DA, DB)
Description
Bias Current
Offset voltage
Test Conditions (See Note 1)
Min
–500
–50
Typ
–50
0
Max
Unit
nA
mV
Note
Source resistance = 2 MΩ
+50
6
10
Zarlink Semiconductor Inc.
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