le79r79 Zarlink Semiconductor, le79r79 Datasheet - Page 9

• Manufacturer Part Number: le79r79
• Description: Ringing Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

Longitudinal Performance
(See Figure 8.)
Idle Channel Noise
Insertion Loss and Four-to-Four-Wire Balance Return Signal
(See Figure 6 and Figure 7.)
Longitudinal to metallic
L-T, L-4 balance
Longitudinal signal generation 4-L
Longitudinal current per pin (A or B)
Longitudinal impedance at A or B
C-message weighted noise
Phosphometric weighted noise
Gain accuracy, 4-to-2-wire
Gain accuracy, 2-to-4-wire
Gain accuracy, 4-to-2-wire
Gain accuracy, 2-to-4-wire
Gain accuracy over frequency
Gain tracking
Gain tracking
OHT state, on hook
Group delay
Description
Description
Description
4-to-4-wire
4-to-4-wire
0 dBm, 1 kHz
0 dBm, 1 kHz
OHT state, on hook
OHT state, on hook
300 to 3400 Hz
relative to 1 kHz
+3 dBm to –55 dBm
relative to 0 dBm
0 dBm to –37
+3 dBm to 0 dBm
0 dBm, 1kHz
200 Hz to 3.4 kHz
normal polarity
reverse polarity
normal polarity,
−40
1 kHz to 3.4 kHz
normal polarity
reverse polarity
normal polarity,
−40
200 Hz to 800 Hz normal polarity
Active or OHT state
0 to 100 Hz, T
Test Conditions (See Note 1)
Test Conditions (See Note 1)
°
°
C to +85
C to +85
Zarlink Semiconductor Inc.
Test Conditions (See Note 1)
A
°
°
= +25
C
C
9
−40 to +85
−40 to +85
−40 to +85
°
0 to +70
0 to +70
0 to +70
C
−40 to +85
−40 to +85
−1, −3*
−2, −4
−2, −4
−1, −3*
−2, −4
−2, −4
0 to +70
0 to +70
°
°
°
°
°
°
−2
−2
C
C
C
C
C
C
°
°
°
°
C
C
C
C
–0.20
–6.22
–0.35
–6.37
–0.10
–0.15
–0.10
–0.15
–0.10
–0.15
–0.35
Min
Min
52
63
54
58
52
58
54
54
42
12
Min
Typ
28
25
–6.02
–6.02
Typ
0
3
Typ
0
–83
+7
Max
+0.20
–5.82
+0.35
–5.77
+0.10
+0.15
+0.10
+0.15
+0.10
+0.15
+0.35
Max
Max
+12
–79
–78
+11
mArms
Ω/pin
Unit
dB
Unit
dBrnC
dBmp
dB
µs
Unit
Note
4
4
4
1, 4, 6
Note
Note
3, 4
3
3
4