le9502 Zarlink Semiconductor, le9502 Datasheet - Page 15

• Manufacturer Part Number: le9502
• Description: Ringing Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

SPECIFICATIONS
Device Specifications
Line Characteristics
V
V
V
V
V
Current limit threshold,
I
I
Loop Current
I
LPF
RDC
Hook Switch detection threshold
programming range
Loop detect threshold tolerance
(I
Ring trip current accuracy
(I
Ringing
V
V
Ringing voltage gain (K
VRINGP, VRINGM Input Range
(VRINGP - VRINGM) Differential
Input Impedance
Ringing Current Limit, I
Ringing distortion
Switching Power Supply
f
Chopper Clock High Duty Cycle
(t
LTH
SC
L
CHCLK
offhook_threshold
trip_threshold
A
AB
CHCLK
A
B
A
AB
REG
accuracy
, V
, Active
, Reverse Polarity
i
offset
accuracy
B
)
Specification
)
)
RSC
R
)
R
Standby, R
Active or Reverse Polarity,
R
Standby, R
Active or Reverse Polarity,
R
Standby, R
Active or Reverse Polarity and
Standby
R
Polarity; I
I
R
Polarity; I
I
Output impedance
Bias voltage with respect to
GND
Leakage current for capacitor
value of 4.7 µF ± 20%
Input impedance
Input voltage tolerance
Standby, Active and Reverse
Polarity
V
V
V
Ringing,
Vin = 0.7Vpk, R
Ringing, R
Vin = 0.7Vpk, R
R
LTH
R
LTH
REG
RING
RING
L
L
L
L
L
L
L
= open
= open
= open
= 100 Ω, Active or Reverse
= 600 Ω, Active or Reverse
= 100 Ω, Standby;
=20mA.
= 600 Ω, Standby;
=20mA.
i = -85V
= 0 V, R
= 0 V, R
K
LTH
LTH
Condition
L
Zarlink Semiconductor Inc.
L
L
L
R
= 100 Ω
= open
= open
= open
=20mA.
=20mA.
=
L
L
--------------- -
V
L
L
= 1400 Ω
= 1400 Ω
V
RING
= 1400Ω
= 1400Ω
AB
,
15
I
I
LTH
LTH
I
I
LTH
LTH
17.5
1.33
59.7
–0.3
Min
–50
–48
200
8.8
7.5
45
45
–2
95
90
80
5
+10
+10
+7
+7
I
I
I
I
LTH
LTH
LTH
LTH
11.5
Typ
–63
–58
100
135
2.2
1.4
0.5
–4
–1
48
48
20
25
10
80
–4
85
10
+17
+17
+11
+11
I
I
I
I
LTH
LTH
LTH
LTH
Max
54.5
22.5
1.47
14.5
89.5
12.5
–69
–64
105
180
0.1
2.4
3.5
53
15
+2
90
+29
+25
+20
+20
mApk
Unit
kHz
V/V
mA
mA
kΩ
µA
kΩ
%
%
Ω
V
V
V
V
V
Note
1.
4.
4.
3.
4.
3.
1.
4.
3.
4.
3.