Electrical Ranges
V
CC
V
NEG
V
BAT1
V
BAT2
AGND/DGND
BGND with respect to AGND/DGND
Load resistance on VTX to ground
R
REF
V
RING
4.75 to 5.25 V
–4.75 V to V
BAT2
–15 to –99 V
–15 V to V
BAT1
0V
–100 to
+100
mV
20 kΩ minimum
0 to V
CC
/2
R
REF
± 1 V pk
SPECIFICATIONS
Transmission Performance
Description
2-wire return loss
Z
VTX
, analog output impedance
V
VTX
, analog output offset voltage
Z
RSN
, analog input impedance
Overload level, 2-wire and 4-wire, off
hook
Overload level, 2-wire
THD (Total Harmonic Distortion)
THD, on hook, OHT state
Active state
On hook, R
LAC
= 600
Ω,
OHT state
+3
dBm
0dBm, R
LAC
= 600
Ω
2.5
0.88
–64
–50
–40
0° to +70° C
–40° to +85° C
–35
–40
1
Test Conditions (See Note 1)
200 Hz to 3.4 kHz (See Figure 9.)
Min
26
3
20
+35
+40
20
Typ
Max
Unit
dB
Ω
mV
Ω
Vpk
Vrms
dB
2a
2b
5
Note
1, 4, 6
4
Longitudinal Performance
(See Figure 7.)
Description
Test Conditions (See Note 1)
200 Hz to 1 kHz
normal polarity
reverse polarity
Longitudinal to metallic
L-T, L-4 balance
normal polarity,
–40° to +85° C
1 kHz to 3.4 kHz
normal polarity
reverse polarity
normal polarity,
–40° to +85° C
Longitudinal signal generation 4-L
Longitudinal current per pin (A or B)
Longitudinal impedance at A or B
Active or OHT state
0 to 100 Hz, T
A
= +25° C
–1, –3*
–2, –4
–2
–2, –4
–1, –3*
–2, –4
–2
–2, –4
Min
52
63
54
58
52
58
54
54
42
8.5
17
25
mArms
Ω/pin
4
4
dB
4
Typ
Max
Unit
Note
200 Hz to 800 Hz normal polarity
Idle Channel Noise
Description
C-message weighted noise
Phosphometric weighted noise
Test Conditions (See Note 1)
0° to +70° C
–40° to +85° C
0° to +70° C
–40° to +85° C
–83
Min
Typ
+7
Max
+11
+12
–79
–78
Unit
dBrnC
dBmp
4
Note
Le79R101 Data Sheet
7
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
