L3000S Datasheet, PDF (3/29 Pages) STMicroelectronics – SUBSCRIBER LINE INTERFACE KIT

L3000S - L3030
PIN DESCRIPTION (L3000S)
FLEX.
N°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
–
PSO
N°
3
4
5
6
7
8
9
1, 10
11, 20
12
13
14
15
16
17
19
2, 18
Name
TIP
MNT
V_B+
BGND
V_DD
VIN
VBIM
V_B–
AGND
REF
C1
C2
I_T
I_L
RING
N.C.
Description
A line termination output with current capability up to 100mA (I_a is the current sourced
from this pin).
Positive Supply Voltage Monitor
Positive Battery Supply Voltage
Battery ground relative to the VB+ and the VB– supply voltages.
It is also the reference ground for TIP and RING signals.
Positive Power Supply + 5V
2 wire unbalanced voltage input.
Output voltage without current capability, with the following functions :
- give an image of the total battery voltage scaled by 40 to the low voltage part.
- filter by an external capacitor the noise on V_B–.
Negative Battery Supply Voltage
Analog Ground. All input signals and the V_DD supply voltage must be referred to this pin.
Voltage reference output with very low temperature coefficient. The connected resistor
sets internal circuit bias current.
Digital signal input (3 levels) that defines device status with pin 12.
Digital signal input (3 levels) that defines device status with pin 11.
High precision scaled transversal line current signal.
I_T
=
I_a + I_b
100
Scaled longitudinal line current signal.
I_L
=
I_b − I_a
100
B line termination output with current capability up to 100mA (I_b is the current sunk into
this pin).
Not connected
Notes: 1) Unless otherwise specified all the diagrams in this datasheet refers to the FLEXIWATT15 pin connection.
2) All informations relative to the PowerSO-20 package option should be considered as advanced information on a new product
now in development or undergoing evaluation. Details are subject to change without notice.
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