Si3215
P
R O
SLIC
®
P
R O G R A M M A B L E
CMOS SLIC/C
O D E C
R
I N G I N G
/ B
A T T E R Y
V
O L TA G E
G
E N E R A T I O N
Features
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
WITH
Ordering Information
See page 111.
Pin Assignments
Si3215
QFN
DRX
PCLK
INT
CS
SCLK
SDI
SDO
Applications
Voice-over-broadband systems:
DSL, cable, wireless
PBX/IP-PBX/key telephone systems
Terminal adapters:
ISDN, Ethernet, USB
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.
DTX
FSYNC
RESET
SDCH
SDCL
V
DDA1
IREF
CAPP
QGND
CAPM
STIPDC
SRINGDC
1 38 37 36 35 34 33 32 31
30
2
3
4
5
6
7
8
9
10
11
29
28
27
26
25
24
23
22
21
12 13 14 15 16 17 18 19 20
SDITHRU
DCDRV
DCFF
TEST
GNDD
VDDD
ITIPN
ITIPP
V
DDA2
IRINGP
IRINGN
IGMP
U.S. Patent #6,567,521
U.S. Patent #6,812,744
Other patents pending
Functional Block Diagram
INT
CS
SCLK
SDO
SDI
DTX
RESET
Si3215
Line
Status
Control
Interface
Compression
Gain/
Attenuation/
Filter
Tone
Generators
Gain/
Attenuation/
Filter
D/A
A/D
Line
Feed
Control
TIP
Prog.
Hybrid
Linefeed
Interface
RING
Z
S
DRX
PCM
Interface
FSYNC
PCLK
PLL
Expansion
DC-DC Converter Controller
Discrete
Components
Rev. 0.92 8/05
Copyright © 2005 by Silicon Laboratories
STIPE
SVBAT
SRINGE
STIPAC
SRINGAC
IGMN
GNDA
Si3215
SILABS [ SILICON LABORATORIES ]
