Rev. 0.92 8/05 Copyright © 2005 by Silicon Laboratories Si3215
Si3215
PROSLIC
®
PROGRAMMABLE CMOS SLIC/CODEC WITH
R
INGING/BATTERY VOLTAGE GENERATION
Features
Applications
Description
The ProSLIC
is a low-voltage CMOS device that provides a complete analog
telephone interface ideal for customer premise equipment (CPE) applications.
The ProSLIC integrates subscriber line interface circuit (SLIC), codec, 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 (Si3215M only) or
5 V supply. The ProSLIC controls the phone line through Silicon Labs’ Si3201
Linefeed Interface Chip or discrete component line feed. Si3215 features include
software-configurable 5 REN internal ringing up to 90 V
PK
, DTMF generation, and
a comprehensive set of telephony signaling capabilities including expanded
support of Japan and China country requirements. The ProSLIC is packaged in a
38-pin QFN and TSSOP, and the Si3201 is packaged in a thermally-enhanced 16-
pin SOIC.
Functional Block Diagram
Performs all BORSCHT functions
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
3.3 to 35 V dc input range
Dynamic 0 to –94.5 V output
Low-cost inductor and high-efficiency
transformer versions supported
Software-programmable linefeed
parameters:
Ringing frequency, amplitude, cadence,
and waveshape
2-wire ac impedance and hybrid
Constant current feed (20 to 41 mA)
Loop closure and ring trip thresholds and
filtering
Software-programmable signal
generation and audio processing:
Phase-continuous FSK (caller ID)
generation
Dual audio tone generators
Smooth and abrupt polarity reversal
µ-Law/A-Law and 16-bit linear PCM
audio
Extensive test and diagnostic features
Multiple voice loopback test modes
Real time dc linefeed measurement
GR-909 line test capabilities
SPI and PCM bus digital interfaces
Extensive programmable interrupts
100% software-configurable global
solution
Ideal for customer premise equipment
applications
Lead-free and RoHS-compliant packages
available
Voice-over-broadband systems:
DSL, cable, wireless
PBX/IP-PBX/key telephone systems
Terminal adapters:
ISDN, Ethernet, USB
Linefeed
Interface
Control
Interface
PCM
Interface
PLL
Gain/
Attenuation/
Filter
Tone
Generators
CompressionExpansion
Gain/
Attenuation/
Filter
Line
Feed
Control
Line
Status
DC-DC Converter Controller
Prog.
Hybrid
D/A
Z
S
A/D
TIP
RING
CS
SCLK
SDO
SDI
DTX
DRX
FSYNC
PCLK
RESETINT
Si3215
Discrete
Components
U.S. Patent #6,567,521
U.S. Patent #6,812,744
Other patents pending
Ordering Information
See page 111.
Pin Assignments
Si3215
27
28
29
30
31
34 33 32
1
2
3
4
5
6
7
8
9
10
11
12
13
26
25
14
35363738
15 16 17 18 19
24
23
22
21
20
QFN
DTX
FSYNC
RESET
SDCH
SDCL
V
DDA1
IREF
CAPP
QGND
CAPM
STIPDC
SRINGDC
STIPE
SVBAT
SRINGE
STIPAC
SRINGAC
IGMN
GNDA
IGMP
IRINGN
IRINGP
V
DDA2
ITIPP
ITIPN
VDDD
GNDD
TEST
DCFF
DCDRV
SDITHRU
SDO
SDI
SCLK
CS
INT
PCLK
DRX
