le9500 Zarlink Semiconductor, le9500 Datasheet

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le9500

Manufacturer Part Number
le9500
Description
Igh-voltage Ringing Slic Device For Volp Applications
Manufacturer
Zarlink Semiconductor
Datasheet

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APPLICATIONS
FEATURES
A
NOTE: On August 3, 2007, Zarlink Semiconductor acquired the products and
technology of Legerity Holdings.
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
Voice Solution
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: 2
RECTIFIER
B1 B2
X1
X1
NSTAT
CLOSURE
LOOP
RING
TRIP
Tube
GAIN = 4
RTFLT
Packing
Sep 17, 2007
AC
+
DCOUT
2
FB2
CF2
CF1
RCVP
RCVN
FB1

Related parts for le9500

le9500 Summary of contents

Page 1

... For delivery using a tape and reel packing system, add a "T" suffix to the OPN (Ordering Part Number) when placing an order. DESCRIPTION The Legerity Le9500 device, part of the VE950 series subscriber line interface circuit (SLIC) that is optimized for short-loop, power-sensitive applications. This device provides ...

Page 2

... DC Loop Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Battery Reversal Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Power Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Design Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Revision .24 Revision .24 Revision .24 Revision .24 Revision .24 Revision .24 Revision .24 Revision .24 2 Zarlink Semiconductor Inc. ...

Page 3

... V for Le9500B, or –100V for Le9500C and Le9500D. For Le9500D during ringing only this voltage may be extended to –145 V. The supply has to be externally adjustable. It has to be adjusted back to no more than -100 V for other operation states. Further, when –145 V is used for ringing special care should be applied to prevent certain faults from happening such as tip to ring, tip or ring to ground ...

Page 4

... V/A. This interface is single ended. The Le9500 device offers a differential receive interface with a gain of 8. The Le9500 device is internally referenced to 1.5 V. This reference voltage is output at the V is also referenced to 1 ...

Page 5

... Gain shaping for termination impedance with a first-generation codec is also achieved with a network from this node to VTX. AC Output Voltage. Output of internal AX amplifier. The voltage at this pin is directly proportional to the VTX Output differential tip/ring current. TXI Input AC/DC Separation. Input to internal AAC amplifier. Connect a capacitor from this pin to VTX. Description 5 Zarlink Semiconductor Inc. ...

Page 6

... CC Battery Supply (V ) (Le9500A) BAT1 Battery Supply (V ) (Le9500B) BAT1 Battery Supply (V ) (Le9500C) BAT1 Battery Supply (V ) (Le9500D Non-Ringing) BAT1 Battery Supply (V ) (Le9500D Ringing) BAT1 Battery Supply (V ) BAT2 Logic Input Voltage Logic Output Voltage Operating Temperature Range Storage Temperature Range Relative Humidity Range Fault Voltage (DC Fault Voltage (10 x 1000 µ ...

Page 7

... Zarlink Semiconductor Inc. Typ Max Unit ° 190 — C ° C/W 35.5 — ° 50.5 — C/W ° 31.5 — C/W 42.5 — ° C/W = 100 V for Le9500C and Le9500D; V – BAT1 Typ Max Unit 3.2 4.4 mA 0.25 0. µA 4.6 5 µA 1.0 1.4 mA 6.2 mA 4.7 1.9 mA 1.4 6 µ ...

Page 8

... Le9500B ( BAT1 — 32 applied — 38 BAT2 applied — 127 BAT1 — 6 — 32 — 171 − Le9500C (V = 100 V) BAT1 — 36 applied — 38 BAT2 applied — 154 BAT1 — 6 — 35 — 204 − − = 100 145 V during ringing only) ...

Page 9

... R BAT2 LOOP | | 2 : ® 455 Zarlink Semiconductor Inc. 14. =25º C. Vcc = 3 100 V/ 145 V for Ringing state of Le9500A/ – – – Min Typ Max Unit 105 — — mApk 65 — — 10 — — 8.5 15 — mArms 29 — ...

Page 10

... Zarlink Semiconductor Inc. Max Unit — kΩ ±10 mV 100 mV — µA — µ – 0 – 0 ±50 mA — kΩ — ...

Page 11

... INP Open, LOAD V = –75 V (Le9500A), V BAT1 RINGINP/N V –85 V (Le9500B BAT1 RINGINP –100 V (Le9500C), V BAT1 RINGINP –145 V (Le9500D), V BAT1 RINGINP/N 1. This parameter is not tested in production guaranteed by design and device characterization. Table 6. Ring Trip Ring Trip (NSTAT = 0): Loop Resistance (total) V Applied BAT1 ...

Page 12

... Supervision circuits, loop closure, and common-mode detect are active. • Ring trip detector is turned off to conserve power. B2 Operating State 1 Forward active 1 Reverse active 0 On-hook transmission forward battery 0 On-hook transmission reverse battery 0 Ground start 0 Scan 1 Disconnect (default device power up state) 1 Ring NSTAT is applied to tip/ring. BAT1 12 Zarlink Semiconductor Inc. ...

Page 13

... Device presents a clamped (amplitude <56.5 V) current-limited battery (V Thermal Shutdown • Not controlled via truth table inputs. • This mode is caused by excessive heating of the device, such as may be encountered in an extended power cross situation. NSTAT output is forced low or off hook during a thermal shutdown event PR. BAT1 13 Zarlink Semiconductor Inc. ...

Page 14

... DCOUT 30 Ω TIP PR R LOOP 100 Ω/600 Ω 30 Ω RING PT V PROG V REF FB2 FB1 CF1 0.1 µF CF2 0.1 µF Figure 2. Le9500 Device Basic Test Circuit Le9500 BASIC TEST CIRCUIT V V BGND V AGND BAT2 BAT1 CC 0.1 µF 0.1 µF 0.1 µ BAT2 BAT1 CC Figure 3 ...

Page 15

... Figure 5. Longitudinal Balance µ 100 F TIP VS 368 Ω TEST CIRCUIT 368 Ω – RING µ 100 F LONGITUDINAL BALANCE = 20log Figure 6. AC Gains PT + BASIC VT/R Ω 600 TEST CIRCUIT – PR VVITR GXMT = VT/R VT/R GRCV = VRCV 15 Zarlink Semiconductor Inc. or Vcc VS VM BASIC VS VM VITR RCV RCV VS ...

Page 16

... BAT2 V is overhead voltage, typically 7.2V feed impedance, typically 40 Ω protection resistor, typically 50 Ω Parameter V – V BAT2 OH R ------------------------------------- - = – 2R – R LOOP P I LOOP 16 Zarlink Semiconductor Inc. is grounded (25 mA) or left floating PROG Value Unit LIM LIM I mA LIM DC ...

Page 17

... Supervision The Le9500 device offers the loop closure and ring trip supervision functions. Internal to the device, the outputs of these detectors are multiplexed into a single package output, NSTAT. The ring trip detector is valid on NSTAT during the ring state, and loop closure detector is valid on NSTAT during active and on-hook transmission states. Additionally, common-mode current is detected for ground start applications ...

Page 18

... Sine Wave Input Signal and Sine Wave Power Ring Signal Output The low-voltage sine wave input is applied differentially or single ended to the Le9500 device at pins RING During the ring state, the signals at pins RING gain from RING to tip and ring is specified in the device specifications. ...

Page 19

... Le9500/Broadcom Reference Schematic A The following reference circuit shows the complete Le9500 SLIC device schematic for interface to the Broadcom BCM3352 as designed on the Broadcom BCM93352SV application reference design and board. This circuit has a 600-Ω AC termination. The BCM3351, BCM3352, and BCM6352 have programmable registers to modify the external 600-Ω termination to achieve worldwide real or complex terminations ...

Page 20

... Application Circuit Parts List A The following parts list is for the Legerity Le9500 SLIC device and Broadcom BCM3352 codec (per Broadcom BCM93552SV application board daughter board components), fully programmable. Item Type R Resistor PT R Resistor PR Battery Protector referenced thyristor C Capacitor P C Capacitor VBAT1 ...

Page 21

... Le9500/Broadcom Reference Schematic B The following reference schematic shows the complete Le9500 SLIC device schematic for interface to the Broadcom BCM3367/ 3368. This circuit has a natural 700-Ω AC termination impedance. The BCM3367 or MCB3368 has programmable registers to modify the external 700-Ω termination to achieve worldwide real or complex terminations, as well as to set transmit and receive gains, and other AC parameters ...

Page 22

... Application Circuit Parts List B The following parts list is for the Legerity Le9500 SLIC device and Broadcom BCM3367/3368 codec. Item Type R Resistor PT R Resistor PR Battery Protector referenced thyristor C Capacitor P C Capacitor VBAT1 C Capacitor VBAT2 D Diode VBAT1 C Capacitor VCC Ferrite 600 Ω, Murata ...

Page 23

... PHYSICAL DIMENSIONS 28-Pin PLCC 28-Pin PLCC 23 Zarlink Semiconductor Inc. Dwg rev. AN; 8/00 ...

Page 24

... In Absolute Maximum Ratings, on page • In Ring Trip, on page 11, added pre-trip condition for the Le9500D device. • Added Power Ringing with Le9500D, on page 18 Revision • Added a note (the new note 1) under the Thermal Characteristics table on page 7 and removed the corresponding state- ment about TSD in the note under the ABSOLUTE MAXIMUM RATINGS table on page 6 ...

Page 25

... I C Standard Specification as defined by Philips. Zarlink, ZL, the Zarlink Semiconductor logo are trademarks, and Legerity, the Legerity logo and combinations thereof are registered trademarks of Zarlink Semiconductor Inc. All other trademarks and registered trademarks are the property of their respective owners. © 2007 Zarlink Semiconductor Inc. All Rights Reserved. ...

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