L3234 STMicroelectronics, L3234 Datasheet - Page 19

• Manufacturer Part Number: L3234
• Description: HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS
• Manufacturer: STMicroelectronics

ELECTRICAL CHARACTERISTICS (Test condition: refer to the test circuit of the fig. 17; V
V
Note: Testing of all parameters is performed at 25 C. Characterization, as well as the design rules used
STAND-BY
DC OPERATION
AC OPERATION
(*) Selected parts L3235C
SS
Symbol
Np4W
Np2W
Gklim
Gkov
IV
IV
IV
= -5V, V
I
I
S
S
V
Thl
G
G
Z
G
V
LCC
I
I
I
max
Z
G
G
L
T
R
G
I
lim
lim
lgk
I
O
CC
bat
vrr
vrr
lP
SS
tx
rx
tc
ls
f
sf
lc
sl
rf
rl
s
r
l
allow correlation of tested performance with actual performance at other temperatures. All pa-
rameters listed here are met in the range 0 C to +70 C. For applications requiring operations in
the standard temperature range (0 C to 70 C) use L3234. If operations are required in the ex-
tended temperature range (-40 C to 85 C), use the L3234T.
bat
Output Voltage at TIP/RING
pins
Short Circuit Current
Output Voltage at TIP/RING
pins
Current Progr.
Current Progr.
On-hook Threshold
Off-hook Threshold
GK Detector Threshold
Ground Key Current
Limitation
Ground Key Threshold
Overloap
Max. Output Current at
TIP/RING
Supply Current from V
Supply Current from V
Supply Current from V
Sending Output Impedance
Receiving Input Impedance
2W Return Loss
Trans Hybrid Loos
Sending Gain
Flatness
Linearity
Receiving Gain
Flatness
Linearity
Psoph. Noise at Tx
Psoph. Noise at Line
Relative to V
Terminal versus Tx Terminal
Relative to V
versus Line Terminal versus
Tx Terminal
L/T Conversion measured at
line Terminals
T/L Conversion Measured at
Line Terminals
= -48V, T
Parameter
bat
cc
amb
and V
versus Line
= 25 C, unless otherwise specified)
ss
CC
SS
bat
I
Stand-by, SBY = 1
I
I
I
8.4K
RING to BGND
Gklim-Ilgk
I
I
Iline = 0
Iline = 0
pin 9 (Tx)
pin 12 (Rx)
f = 300 to 3400Hz
f = 300 to 3400Hz
f = 1020Hz I
f = 300 to 3400Hz
-20dB to 10dBm
f = 1020Hz I
f = 300 to 3400Hz
-20dBm to +4dBm
f = 1020Hz
V
f = 1020Hz
V
f = 300 to 3400
I
f = 300 to 3400
I
LINE
LINE
LINE
lim
lim
line
line
line
S
S
Prog. = 70mA
= 70mA
= 100mVpp
= 100mVpp
= 0
= 20mA
= 20mA
Test Condition
= 0
= 50mA
= 0
< R
LIM
l
l
= 20mA
= 20mA
< 33K
35.7
53(*)
46(*)
Min.
35.7
35.2
5.82
-0.2
-0.2
-0.2
-0.2
0.2
63
20
10
10
13
90
20
20
49
2
1
1
Typ.
6.02
6.2
1.6
2.8
-69
-75
70
36
36
3
0
Max.
6.22
140
2.1
3.6
0.2
0.2
0.2
0.2
0.2
-62
-68
-30
-24
-20
-14
39
39
39
77
70
17
22
10
4
5
8
L3234 - L3235
dBmp
dBmp
Unit
mA
M
mA
mA
mA
mA
mA
mA
mA
mA
CC
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
= 5V,
Fig.
A1
A2
A3
A4
A5
A6
A7
19/26