Si3217x and Si3291x
ProSLIC® Single-Chip FXS Solution with FXO Option
Description
- Low power standby operation
The Si3217x is a family of pin-compatible single-channel
ProSLIC products that implement a complete foreign
exchange station (FXS) telephony interface solution in
accordance with all relevant LSSGR, ITU and ETSI
specifications. Select parts in the series also implement
Silicon Laboratories' patented capacitive isolation
technology to enable seamless connection to Si3291x
series foreign exchange office (FXO) line-side devices. The
Si3217x ProSLIC ICs operate from a 3.3 V supply and
interface to standard PCM/SPI digital interfaces. The
Si3217x integrated dc-dc controller automatically
generates the optimal battery voltages required for each
line-state. Si3217x ICs are available with voltage ratings of
–110 V or –135 V to support a wide range of ringing
voltages. The Si3217x is available in a 5x7 mm 42-pin QFN
package. The Si3291x is available in a 16-pin SOIC
package.
- Tracking dc-dc controller
- Patented low-power ringing
- Wideband voice support
- DTMF detection
- Pulse metering
- 3.3 V operation
- Pb-free/RoHS-compliant packaging
Si3291x Features
- Greater than 5 kV isolation
- Global programmability
- Up to +6 dBm TX/RX level
- Parallel handset detection
- Type I and II caller ID support
- Integrated ring detector
- Programmable digital hybrid
Applications
Si3217x Features
- Customer Premise Equipment (CPE)
- VoIP DSL Gateways and Routers
- Wireless Local Loop (WLL)
- Integrated Access Devices (IAD)
- Analog Terminal Adapters (ATA)
- Small Office/Home Office (SOHO) PBX
- Performs all BORSCHT functions
- Ideal for short to medium loops
- Global programmability
- Simplified configuration and diagnostics
- Supported by ProSLIC API
Ordering Guide
FXS P/N
Description
FXS, wideband capable
Max Vbat
–110 V
–110 V
–135 V
–135 V
–110 V
–110 V
–110 V
Temperature
Si32176-B-FM
Si32176-B-GM
Si32177-B-FM
Si32177-B-GM
Si32178-B-FM
Si32171-B-FM
Si32171-B-GM
0 to 70 °C
–40 to 85 °C
0 to 70 °C
FXS, wideband capable
FXS, wideband capable
FXS, wideband capable
–40 to 85 °C
0 to 70 °C
FXS, DTMF detection, wideband capable with FXO support
FXS, DTMF detection, pulse metering
FXS, DTMF detection, pulse metering
0 to 70 °C
–-40 to 85 °C
FXO P/N
Region
FCC/CTR21
Global
Ringer Thresholds
On-hook Speeds
RoHS Compliant
Temperature
Si32911-A-FS
Si32919-A-FS
1
3
2
3
Yes
Yes
0 to 70 °C
0 to 70 C
CODEC
ADC
SLIC
Linefeed
Control
PCM/
GCI
Interface
FSYNC
DRX
DTMF &
Tone Gen
TIP
ADC
DTX
FXS
FXO
RING
Caller ID
Linefeed
Monitor
CS
SDI
DAC
DAC
SPI
Control
Interface
Ringing
Generator
SDO
SCLK
INT
TIP
RX
DCT
VREG
IGND
Optional FXO
Hybrid and
dc
Termination
C1A C1B
DSP
Isolation
Interface
Isolation
Interface
Line Diagnostics
RST
C2A C2B
CID
QB
QE
Control
Ring Detect
Off-Hook
RING
PCLK
DC-DC Controller
DC-DC Contro ler
PLL
Si3217x
Si3291x
ProSLIC
Copyright © 2009 by Silicon Laboratories
4.14.09