le79489 Zarlink Semiconductor, le79489 Datasheet - Page 6
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le79489
Manufacturer Part Number
le79489
Description
Subscriber Line Interface Circuit
Manufacturer
Zarlink Semiconductor
Datasheet
1.LE79489.pdf
(18 pages)
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ELECTRICAL CHARACTERISTICS
Note:
* P.G. = Performance Grade
Transmission Performance
2-wire return loss
(See Test Circuit D)
Analog output (V
Analog output (V
Overload level, 2-wire
THD, Total Harmonic Distortion
THD, open loop
Longitudinal Capability (See Test Circuit C)
Longitudinal to metallic L-T
200 Hz to 1 kHz
Longitudinal to metallic L-T
1 kHz to 3.4 kHz
Longitudinal signal generation 4-L
Longitudinal current per pin
(A or B)
Longitudinal impedance at A or B
Longitudinal Induction
Idle Channel Noise
C-message weighted noise
Psophometric weighted noise
Insertion Loss (See Test Circuits A and B)
Gain, 4- to 2-wire
Gain, 2- to 4-wire, 4-to-4-wire
Gain, 4- to 2-wire
Gain, 2- to 4-wire, 4- to 4-wire
Gain over frequency
Gain tracking
Gain tracking open loop
Group delay
Description
TX
TX
) impedance
) offset voltage
200 Hz to 3.4 kHz
Active state
0 dBm
+7 dBm
0 dBm, R
Normal polarity
Normal polarity
Normal polarity
Reverse polarity
Normal polarity
Normal polarity
Normal polarity
Reverse polarity
200 Hz to 3.4 kHz
Active state
0 to 100 Hz
R
R
0 dBm, 1 kHz
0 dBm, 1 kHz
Open loop
Open loop
300 to 3.4 kHz, relative to 1 kHz
+3 dBm to –55 dBm relative to 0 dBm
0 dB to –15 dB
0 dBm, 1 kHz
L
L
= 600 Ω
= 600 Ω
Test Conditions (See Note 1)
LAC
Zarlink Semiconductor Inc.
= 600 Ω
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to 85°C
–40°C to 85°C
0
0°C to +70°C
°C
0°C to 70°C
0°C to 70°C
6
to +70°C
–3*
–2
–2
–2
–3
–2
–2
–2
Min
–0.15
–0.20
–6.05
–6.10
–0.10
–0.35
–6.25
–0.10
–0.35
–50
2.5
26
52
60
58
54
52
54
54
54
40
15
Typ
–5.90
–5.90
–5.90
–64
–55
–83
27
25
+7
3
0
0
4
Max
+0.10
+0.15
+0.20
–5.75
–5.70
+0.35
–5.55
+0.10
+0.35
+50
+12
–50
–40
–36
–78
20
23
mArms
dBrnC
Unit
dBrnc
dBmp
Ω/pin
Vpk
mV
dB
dB
dB
dB
dB
µs
Ω
Note
2a, 3
4, 6
4, 8
4, 6
4
3
4
8
7
4
4
8
4
4
4
4
4