LE9500CBJC Legerity, Inc., LE9500CBJC Datasheet

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LE9500CBJC

Manufacturer Part Number
LE9500CBJC
Description
PLCC28
Manufacturer
Legerity, Inc.
Datasheet

Specifications of LE9500CBJC

Date_code
07+

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APPLICATIONS
FEATURES
Interface to Broadcom:
— BCM3367/3368 cable modem
— BCM3341/3351/3352 cable modem
— BCM6352 integrated multimedia adaptor
— BCM1101 residential gateway
Cable modems
Voice over Internet Protocol (VoIP)
Voice over DSL
Remote subscriber units
Broadband wireless
Short-loop access
Differential ringing and codec interface
Single-ended application also supported
On-board ringing generation
— 15 to 70 Hz ring frequency supported
Three ringing options:
— Sine wave input - sine wave output
— PWM input - sine wave output
— Square wave input - trapezoidal output
Flexible power supply options:
— V
— V
— 3.3 V for V
Battery switch to minimize off-hook power
Eight operating states:
— Scan
— Forward and reverse battery active
— Forward and reverse battery on-hook transmission
— Ground start
— Ring
— Disconnect
Ultra-low on-hook power:
— 29 mW scan state
— 38 mW active state
Loop start, ring trip, and ground start detection
— Fixed off hook threshold with hysteresis
— Fixed ground start threshold with hysteresis
— Fixed ring-trip threshold as a function of battery voltage
Software-controllable dual-current limit option
— 25 mA or 40mA via ground or open control input
UL1950 Compatible
— When not in ringing, |V
Thermal shutdown protection with hysteresis
28-pin PLCC package
HV7 Technology
be less than 56.5 V
BAT2
BAT1
for active talking
for ringing, scan, and so on
CC
TIP
| and |V
High-Voltage Ringing SLIC Device for VolP Applications
RING
| are clamped to
ORDERING INFORMATION
1.
2.
DESCRIPTION
The Legerity Le9500 device, part of the VE950 series, is a
subscriber line interface circuit (SLIC) that is optimized for
short-loop, power-sensitive applications. This device provides
the complete set of line interface functionality (including power
ringing) needed to interface to a subscriber loop while
providing ultra low power dissipation. The Le9500 SLIC device
is capable of operating with a V
designed to minimize external components required at all
device interfaces. The differential ringing and receive inputs
make the device ideal for direct interface to Data Over Cable
Service Interface Specification (DOCSIS) compliant cable
modem gateways, to multimedia adaptors, and to residential
gateway products, such as the Broadcom® BCM3367/3368,
BCM3341/3351/3352, BCM6353, BCM1101 and equivalent
products.
BLOCK DIAGRAM
Le9500ABJC
Le9500BBJC
Le9500CBJC
Le9500DBJC
VITR
VTX
ITR
TXI
PR
PT
The green package meets RoHS Directive 2002/95/EC of the
European Council to minimize the environmental impact of
electrical equipment.
For delivery using a tape and reel packing system, add a "T" suffix
to the OPN (Ordering Part Number) when placing an order.
Device
(ITR/306)
GAIN = 20
AAC
AX
+
CURRENT
TIP/RING
SENSE
RFT
18 Ω
RFR
18 Ω
V
REF
28-Pin PLCC, -75V (Green)
28-Pin PLCC, -85V (Green)
28-Pin PLCC, -100V (Green)
28-Pin PLCC, -100V
operation / -145V ringing
(Green)
Document ID# 081189
Rev:
Distribution:
AGND
AR
AT
+
+
V
CC
Package Type
REFERENCE
BAND-GAP
POWER
BGND V
RING
1.5 V
GAIN = 65
RINGING
INN
BAT2
RING
INP
V
BAT1
G
Public Document
CC
supply of 3.3 V, and is
CONTROL
CURRENT
INRUSH
LIMIT
V
AND
PROG
1
VE950 Series
B0
INTERFACE
PARALLEL
Le9500
DATA
Date:
Version: 1
RECTIFIER
B1 B2
X1
X1
NSTAT
CLOSURE
LOOP
RING
TRIP
Tube
GAIN = 4
RTFLT
Packing
Oct 12, 2006
AC
+
DCOUT
2
FB2
CF2
CF1
RCVP
RCVN
FB1

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