L3037 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L3037' PDF : 22 Pages View PDF
L3037
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
INSERTION LOSS
Gt
Transmit V Gain
0dBm, 1KHz
Gr
Receive V Gain
INSERTION LOSS vs. FREQUENCY (rel 1KHz / 0dBm)
Gt
Transmit V Gain
Gr
Receive V Gain
METERING INJECTION
0.3 to 3.4KHz
GTTX
THD
Transfer Gain
Harmonic Distortion
VTTXIN = 0.66Vrms ZL =200Ω;
2 ⋅ RP = 80Ω; Vmoff = 0
GAIN LINEARITY (rel 1KHz, -4dBm)
Gt
Transmit V Gain
Gr
Receive V Gain
GROUP DELAY (2-4, 4-2) 0DbM
-55dBm to 7dBm (1)
Tg ABS
Absolute
TgDIS
4 to 2-wire
TOT HARMONIC DISTORTION
3KHz
0.5 to 3,4KHz
Thd4
2 to 4-wire
7dBm, 0.3 to 3.4KHz
Thd2
4 to 2-wire
IDLE CHANNEL NOISE
Vabp
2-wire port
psophometric
Vtxp
4-wire transmit
psophometric
Vabc
2-wire port
c message
Vtxc
4-wire transmit
c message
RINGING FUNCTION
0 cross Zero Crossing Threshold Level
IRT
Ring Trip Threshold
TRTD
Ring Trip Detection Time
BATTERY FEED CHARACTERISTIC
fRING = 16 to 66Hz
RGIN = 3Vrms
RL = 1.8k, fRING = 25Hz
POWER DOWN STATE
IL GND
Loop Current
ILBAT
IL
Loop Current
Loop Current
STAND BY STATE
Il
Iloop Accuracy
VL OS
Line Voltage
ACTIVE STATE
VLO
Line Voltage
Rfeed
Feeding Resistance Accuracy
Ilim
Loop Current Limit Accuracy
GROUND START STATE
ZTIP
Tip Lead Impedance
IGS
Ring Lead Current
(1) For level lower than -40dB guaranteed by correlation.
TIP or RING to BGND
TIP or RING to Vbat
RL = 0
constant region
@ IL = 0
@ IL = 0
Ilim = 25mA, 44mA, 55mA
RING to GND
Min.
-6.22
-0.2
-0.1
-0.1
3.18
-0.1
-0.1
-70
13
40
34.5
-10
-8
100
Typ.
5
5
-78
-82
12
8
7.5
Ilim
30
Max. Unit
-5.82 dB
0.2
dB
0.1
dB
0.1
dB
3.51
5
%
0.1
dB
0.1
dB
µs
µs
-46
dB
-46
dB
-72 dBmP
-76 dBmP
18 dBr nC
14 dBr nC
70
mV
mA DC
150 ms
0.5 mA
0.5 mA
1
mA
16
mA
42
V
37.5
V
+10
%
+8
%
KΩ
mA
13/22
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