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SI3227 데이터시트(PDF) 1 Page - Silicon Laboratories

부품명 SI3227
상세설명  Low-power sleep mode On-hook transmission Loop or ground start operation Smooth polarity reversal
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제조업체  SILABS [Silicon Laboratories]
홈페이지  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI3227 데이터시트(HTML) 1 Page - Silicon Laboratories

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Preliminary Rev. 0.33 6/07
Copyright © 2007 by Silicon Laboratories
Si3226/7 Si3208/9
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Si3226/7
Si3208/9
DUAL PROSLIC® WITH DC-DC CONTROLLER
Features
Applications
Description
The Dual ProSLIC® is a family of low-voltage CMOS devices that integrate both
SLIC and CODEC functionality into a single IC. In combination with a linefeed IC
(LFIC), they provide a complete two-channel analog telephone interface in
accordance with all relevant LSSGR, ITU, and ETSI specifications. The Dual
ProSLIC devices (Si3226/7) operate from a single 3.3 V supply and interface to
standard PCM/SPI or GCI bus digital interfaces. The LFICs (Si3208/9) perform all
high-voltage functions and operate from a 3.3 V supply as well as high-voltage
battery supplies. The Si3208 is rated for –110 V, and the Si3209 is rated for –
135 V. The Dual ProSLIC devices are available in a 64-pin thin quad flat package
(TQFP), and the LFICs are available in a 40-pin, quad flat no-lead package
(QFN).
Functional Block Diagram
Performs all BORSCHT functions
Ideal for short- or long-loop applications
Internal balanced or unbalanced ringing
Low power consumption
Software-programmable parameters:
Ringing frequency, amplitude,
cadence, and waveshape
Two-wire ac impedance
Transhybrid balance
DC current loop feed (10–45 mA)
Loop closure and ring trip thresholds
Ground key detect threshold
Integrated dc-dc controller
Wideband CODEC (Si3227)
Low-power sleep mode
On-hook transmission
Loop or ground start operation
Smooth polarity reversal
DTMF generator/decoder
A-Law/µ-Law companding,
linear PCM
PCM and SPI bus digital interfaces
with programmable interrupts
GCI/IOM-2 mode support
3.3 V operation
GR-909 loop diagnostics
Audio diagnostics with loopback
Pb-free/RoHS-compliant packaging
Customer Premises Equipment (CPE)
Optical Network Terminals (ONT)
Private Branch Exchange (PBX)
Cable EMTAs, ATAs, VoIP
Gateways
RING
TIP
RING
TIP
SPI
Control
Interface
PCM/
GCI
Interface
DSP
DTMF &
Tone Gen
Caller ID
Ringing
Generator
ADC
DAC
CODEC
ADC
DAC
CODEC
SLIC
Linefeed
Control
Linefeed
Monitor
SLIC
Linefeed
Control
Linefeed
Monitor
Channel 1
Channel 2
DC-DC Controller
Line Diagnostics
PLL
PCLK
FSYNC
DRX
DTX
CS
SDI
SDO
SCLK
INT
RST
Si3226
Si3206
DC-DC BOM
VDC
VBAT
RING
TIP
RING
TIP
SPI
Control
Interface
PCM/
GCI
Interface
DSP
DTMF &
Tone Gen
Caller ID
Ringing
Generator
ADC
DAC
CODEC
ADC
DAC
CODEC
ADC
DAC
CODEC
ADC
DAC
CODEC
SLIC
Linefeed
Control
Linefeed
Monitor
SLIC
Linefeed
Control
Linefeed
Monitor
Channel 1
Channel 2
DC-DC Controllers
Line Diagnostics
PLL
PCLK
FSYNC
DRX
DTX
CS
SDI
SDO
SCLK
INT
RST
Si3226/7
DC-DC BOM
VDC
VBAT
Si3208/9
Patents pending
Ordering Information
See page 33.


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