le79231 Zarlink Semiconductor, le79231 Datasheet - Page 14

• Manufacturer Part Number: le79231
• Description: Intelligent Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

Transmission Specifications
No.
10
12
13
14
15
16
17
11
1
2
3
4
5
6
7
8
9
RSN input impedance
VTX output impedance
Max, AC + DC loop current
Longitudinal impedance, A or B to
GND
2-4 wire gain
2-4 wire gain variation with
frequency
2-4 wire gain tracking
4-2 wire gain
4-2 wire gain variation with
frequency
4-2 wire gain tracking
Total harmonic distortion level
2-wire
4-wire
4-wire overload level at VTX
Idle channel noise
C-message
Weighted
Psophometric
Weighted
Longitudinal balance
(IEEE method)
Normal Polarity
Reverse Polarity
PSRR (VBH, VBL)
PSRR (VCC)
Longitudinal AC current per wire
Metering distortion
Item
f = 300 to 3400 Hz
Active High Battery or Active Low
Battery
Active mode
–10 dBm, 1 kHz, 0 to 70° C
T
300 to 3400 Hz, relative to 1 kHz
T
+3 dBm to –55 dBm
Reference: –10 dBm
T
–10 dBm, 1 kHz
T
300 to 3400 Hz, relative to 1 kHz
+3 dBm to –55 dBm
Reference: –10 dBm
T
300 Hz to 3400 Hz
0 dBm
11.2 dBm
–12 dBm
–0.8 dBm
RLOAD = 600 Ω
VAB-50 0 dBm
Active modes, R
2-wire
4-wire
2-wire
4-wire
L - T
T
T
T - L
L - T, IL = 0 50 to 3400 Hz
L - T
T
50 to 3400 Hz
3.4 to 50 kHz
50 to 3400 Hz
3.4 to 50 kHz
F = 15 to 60 Hz Active mode
Freq = 12 kHz
Freq = 16 kHz
metering load = 200 Ω
Zarlink Semiconductor Inc.
A
A
A
A
A
A
A
A
=–40° to 85° C
= –40° to 85° C
= –40° to 85° C
= –40 to 85° C
= –40 to 85° C
= –40° to 85° C
= –40° to 85° C
= –40° to 85° C
200 to 1000 Hz
1000 to 3400 Hz
200 to 3400 Hz
200 to 1000 Hz
Condition
14
L
= 600 Ω
2.8 Vrms
–14.13
–14.18
–0.10
–0.15
–0.10
–0.15
–0.15
–0.20
–0.15
–0.1
–0.1
Min
70
58
53
53
48
40
50
48
25
25
20
40
–13.98
–13.98
Typ
–81
–95
-50
70
±1
+9
–5
63
45
40
45
35
30
1
3
–13.83
–13.78
+0.10
+0.15
+0.15
+0.20
Max
+.10
+.15
+0.1
+0.1
+.15
135
–50
–40
–48
–38
+11
–79
mArms
dBrnC
dBmp
Unit
mA
dB
dB
dB
dB
dB
Vp
dB
dB
dB
—
Ω
Ω
1, 2, 4
1, 2, 4
Note
2, 5
2, 5
3, 4
3, 4
2
2
2
2
2
2
2
2
2
3
2
2