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L3092N Datasheet

  • L3092N

  • SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...

  • 32頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L3000N
L3092
SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH
FIRST AND SECOND GENERATION COMBOS
PRELIMINARY DATA
PROGRAMMABLE DC FEED RESISTANCE
AND LIMITING CURRENT (25/40/60mA)
LOW ON-HOOK POWER DISSIPATION
(50mW typ)
SIGNALLING FUNCTION (off-hook/GND-Key)
QUICK OFF-HOOK DETECTION IN CVS FOR
LOW DISTORTION (< 1 %) DIAL PULSE DE-
TECTION
HYBRID FUNCTION
RINGING GENERATION WITH QUASI ZERO
OUTPUT IMPEDANCE, ZERO CROSSING IN-
JECTION (no ext. relay needed) AND RING
TRIP DETECTION
ABSOLUTELY NO NOISE INJECTED ON
ADIACENT LINES DURING RINGING SE-
QUENCE
AUTOMATIC RINGING STOP WHEN OFF-
HOOK IS DETECTED
TEST MODE ALLOWS LINE LENGHT MEAS-
UREMENT
PARALLEL LATCHED DIGITAL INTERFACE
LOW NUMBER OF EXTERNAL COMPO-
NENTS WITH STANDARD TOLERANCE
ONLY : 9 1% RESISTORS AND 5 10-20% CA-
PACITORS (for 600 ohm appl.)
POSSIBILITY TO WORK ALSO WITH HIGH
COMMON MODE CURRENTS
GOOD REJECTION OF THE NOISE ON BAT-
TERY VOLTAGE (20dB at 10Hz ; 35dB at
1KHz)
INTEGRATED THERMAL PROTECTION
SURFACE MOUNT PACKAGE (PLCC28 +
PowerSO-20)
0擄C TO 70擄C: L3000N/L3092
-40擄C TO +85擄C: L3000NT/L3092T
DIP28
ORDERING NUMBER:
L3092N
PLCC28
ORDERING NUMBER:
L3092FN
FLEXIWA TT15
ORDERING NUMBER:
L3000N
PowerSO-20
ORDERING NUMBER:
L3000NSO
DESCRIPTION
The SLIC KIT (L3000N/L3092) is a set of solid
state devices designed to integrate many of the
functions needed to interface a telephone line. It
consists of 2 integrated devices ; the L3000N line
interface circuit and the L3092 control unit.
The kit implements the main features of the
BORSHT functions:
- Battery feed (balance mode)
- Ringing Injection
November 1994
- Signalling Detection
- Hybrid Function
The SLIC KIT injects the ringing signal in bal-
anced mode and requires a positive supply volt-
age of typically + 72V to be available on the sub-
scriber card.
The L3000N/L3092 kit generates the ringing sig-
nal internally, avoiding the requirement for expen-
sive external circuitry. A low level 1.5Vrms input is
required. (This can be provided by the combo).
A special operating mode limits the SLIC KIT
power dissipation to 50mW in on-hook condition
keeping the on/off hook detection circuit active.
Through the Digital Interface it is also possible to
set an operating mode that allows measurements
of loop resistance and therefore of line lenght.
This kit is fabricated using a 140V Bipolar tech-
2
nology for L3000N and a 12V Bipolar I L technol-
ogy for L3092.
Both devices are available PTH application
(FLEXIWATT15 and DIP28) or SMD application
(PowerSO-20 and PLCC28).
This kit is specially suitable to Private Automatic
Branch Exchange (PABX) and Low Range C.O.
Applications.
1/32
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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