SI3233 Datasheet, PDF (1/100 Pages) Silicon Laboratories – PROSLIC® PROGRAMMABLE CMOS SLIC WITH RINGING/BATTERY VOLTAGE GENERATION

Si3233
PROSLIC^® PROGRAMMABLE CMOS SLIC WITH
RINGING/BATTERY VOLTAGE GENERATION
Features
Software Programmable SLIC with
codec interface
Software programmable internal
balanced ringing up to 90 V_PK
(5 REN up to 4 kft, 3 REN up to 8 kft)
Integrated battery supply with dynamic
voltage output
On-chip dc-dc converter continuously
minimizes power in all operating modes
Entire solution can be powered from a
single 3.3 V or 5 V supply
3.3 V to 35 V dc input range
Dynamic 0 V to –94.5 V output
Software programmable linefeed
parameters:
Ringing frequency, amplitude, cadence,
and waveshape
2-wire ac impedance
constant current feed (20 to 41 mA)
Loop closure and ring trip thresholds and
filtering
Applications
Software programmable signal
generation and audio processing:
Phase-continuous FSK (caller ID)
generation
Dual audio tone generators
Smooth and abrupt polarity reversal
Extensive test and diagnostic
features
Realtime dc linefeed measurement
GR-909 line test capabilities
SPI control interface
Extensive programmable interrupts
100% software configurable global
solution
Lead-Free and RoHS-compliant
Interface to Broadcom devices
Voice over IP
BCM11xx residential gateway
BCM3341 VOIP processor
BCM33xx cable modem
Terminal adapters
Fixed cellular terminal
Description
The Si3233 ProSLIC^® is a low-voltage CMOS device that provides a multi-functional
subscriber line interface ideal for customer premise equipment (CPE) applications.
The ProSLIC integrates subscriber line interface circuit (SLIC) and battery generation
functionality into a single CMOS integrated circuit. The integrated battery supply
continuously adapts its output voltage to minimize power and enables the entire
solution to be powered from a single 3.3 V (Si3233M only) or 5 V supply. The ProSLIC
controls the phone line through Silicon Labs’ Si3201 Linefeed IC or discrete circuitry.
Si3233 features include software-configurable 5 REN internal ringing up to 90 V_PK,
DTMF generation, and a comprehensive set of telephony signaling capabilities for
operation with only one hardware solution. The ProSLIC is packaged in a 38-pin QFN
and the Si3201 is packaged in a thermally-enhanced 16-pin SOIC.
Functional Block Diagram
INT RESET
Si3233
Ordering Information
See page 95.
Pin Assignments
QFN Package
NC 1 ^{38 37 36 35 34 33 32} 31
FSYNC 2
30
RESET 3
29
SDCH 4
28
SDCL 5
27
V_DDA1 6
26
IREF 7
25
CAPP 8
24
QGND 9
23
CAPM 10
22
STIPDC 11
21
SRINGDC 12 13 14 15 16 17 18 19 20
SDITHRU
DCDRV
DCFF
TEST1
GNDD
VDDD
ITIPN
ITIPP
V_DDA2
IRINGP
IRINGN
IGMP
Patents pending
U.S. Patent #6,567,521
U.S. Patent #6,812,744
Other patents pending
CS
SCLK
SDO
SDI
FSYNC
PCLK
Tone Generators
FSK Caller ID
Ringing Generator
Loop Closure Detect
Ring Trip Detect Line
Diagnostics
Impedance Synth
SLIC
Linefeed Control
Linefeed Monitor
DC–DC Converter Controller
Linefeed
Interface
Tip
Ring
Battery
Preliminary Rev. 0.5 4/06
Copyright © 2006 by Silicon Laboratories
Si3233
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.