Si3230
PROSLIC® PROGRAMMABLE CMOS SLIC WITH
RINGING/BATTERY VOLTAGE GENERATION
Features
Software Programmable SLIC with
codec interface
Software programmable internal
balanced ringing up to 90 VPK
(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
Software programmable signal
generation and audio processing:
DTMF generation and decoding
12 kHz/16 kHz pulse metering
generation
Phase-continuous FSK (caller ID)
generation
Dual audio tone generators
Smooth and abrupt polarity reversal
Extensive test and diagnostic
features
Ordering Information
See page 103.
Realtime dc linefeed measurement
GR-909 line test capabilities
SPI control interface
Extensive programmable interrupts
100% software configurable global
solution
3.3 V to 35 V dc input range
Dynamic 0 V to –94.5 V output
Software programmable linefeed
parameters:
Pin Assignments
QFN Package
Ringing frequency, amplitude, cadence,
and waveshape
2-wire ac impedance
Lead-Free and RoHS-compliant
package options available
constant current feed (20 to 41 mA)
Loop closure and ring trip thresholds and
filtering
38 37 36 35 34 33 32
NC
FSYNC
RESET
SDCH
SDCL
VDDA1
IREF
CAPP
QGND
CAPM
STIPDC
SRINGDC
1
2
3
4
31 SDITHRU
30
29
28
27
26
25
24
23
22
21
20
DCDRV
DCFF
TEST1
GNDD
VDDD
ITIPN
ITIPP
VDDA2
IRINGP
IRINGN
IGMP
Applications
Interface to Broadcom devices
Voice over IP
5
6
7
BCM11xx residential gateway
BCM3341 VOIP processor
BCM33xx cable modem
Terminal adapters
Fixed cellular terminal
8
9
10
11
12
Description
®
The Si3230 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 (Si3230M only) or 5 V supply. The ProSLIC
controls the phone line through Silicon Labs’ Si3201 Linefeed IC or discrete circuitry.
13 14 15 16 17 18 19
Si3230 features include software-configurable 5 REN internal ringing up to 90 V
,
PK
Patents pending
DTMF generation and decoding, and a comprehensive set of telephony signaling
capabilities for operation with only one hardware solution. The ProSLIC is packaged in
a 38-pin QFN or TSSOP, and the Si3201 is packaged in a thermally-enhanced 16-pin
SOIC.
U.S. Patent #6,567,521
U.S. Patent #6,812,744
Other patents pending
Functional Block Diagram
INT RESET
Si3230
Ringing Generator
Loop Closure Detect
Ring Trip Detect Line
Diagnostics
CS
Tone Generators
FSK Caller ID
Pulse Metering
SCLK
SDO
SDI
Impedance Synth
DTMF Decoder
SLIC
Tip
Linefeed Control
Linefeed
Interface
Ring
Linefeed Monitor
FSYNC
PCLK
DC–DC Converter Controller
Battery
Preliminary Rev. 0.96 2/05
Copyright © 2005 by Silicon Laboratories
Si3230
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.