Le77D11
Data Sheet
Specification
Condition
Min
Typ
Max
Unit
Note
RL = 100 Ω
Ringing current limit
Switching Power Supply
CHCLK
Chopper Clock Duty Cycle
ILSi Offset (current limit sense
threshold)
90
135
180
mApk
4.
85.3
10
kHz
%
3.
3.
7.5
12.5
0.31
0.25
0.28
V
Input impedance
Bias current
Output impedance
Slew Rate negative
Slew Rate positive
7000
Ω
µA
Ω
ILSi
SDi
–1
+1
50
3
25
V/µsec
V
OH where VSW ≥ 12 V,
RBD = 330 Ω
OL where VSW ≥ 12 V,
V
V
SW − 0.3 V
V
V
SW − 0.2 V
SW − 5.4 V
3.
V
V
V
SW − 7.2 V
SW − 6.3 V
RBD = 330 Ω
Input impedance
1
MΩ
Line test and Ringing
Standby and Active
Disconnect
180
75
1
CHSi
µA
Input impedance, tied to VREF
10
Ω
FSET
Offset voltage with respect to VREF
–5
+5
mV
Power Supply Rejection Ratio at the Two-wire interface
200 to 4000 Hz
4 to 20 kHz, 50 mVRMS
25
25
45
30
V
CC to VAB
200 to 4000 Hz, 100 mVRMS
dB
dB
25
20
15
45
40
30
VREG to VAB
4 to 50 kHz
50 to 100 kHz
4.
4.
Longitudinal Capability
RL = 600 Ω, 300 to 3400 Hz, 0
dBm, Active and Reverse Polarity
1 kHz, 0 dBm
A(TIP) or B(RING)
Longitudinal balance
46
63
50
T-L balance
40
30
Longitudinal current per pin
Longitudinal impedance
mA
4.
4.
A(TIP) or B(RING), 0 to 100 Hz
Fi Low, RL from B(RING) to GND,
Standby, Active, or Reverse
Polarity
1
5
Ω/pin
Longitudinal current detect,
ILONG
18
27
35
mA
Transmission Performance
2WRL
300 to 3400 Hz, for 600 Ω
26
1
dB
4.
6.
IIMT
KDC DC current gain
(IMT accuracy)
KDC = -------------- , RL = 600 Ω,
1
1
–
–
–
---------
525
---------
500
---------
475
ILOOP
A/A
Active, Standby, Reverse Polarity
Line Test:, Standby IL < |40 mA|
1
1
1
KV Voice Current gain
Active or Rev. Pol.
Ringing
IL < |55 mA|
IL < |90 mA|
---------
520
---------
500
---------
480
A/A
4.
15
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
