SILICONIMAGE Si32171-B-GM

Si3217x and Si3291x
ProSLIC® Single-Chip FXS Solution with FXO Option
Description
-
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.
Low power standby operation
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
- 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
Si3217x Features
- 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
Max Vbat
Temperature
Si32176-B-FM
FXS, wideband capable
–110 V
0 to 70 °C
Si32176-B-GM
FXS, wideband capable
–110 V
–40 to 85 °C
Si32177-B-FM
FXS, wideband capable
–135 V
0 to 70 °C
Si32177-B-GM
FXS, wideband capable
–135 V
–40 to 85 °C
Si32178-B-FM
FXS, DTMF detection, wideband capable with FXO support
–110 V
0 to 70 °C
Si32171-B-FM
FXS, DTMF detection, pulse metering
–110 V
0 to 70 °C
Si32171-B-GM
FXS, DTMF detection, pulse metering
–110 V
–-40 to 85 °C
Region
Ringer Thresholds
On-hook Speeds
RoHS Compliant
Temperature
FCC/CTR21
1
2
Yes
0 to 70 °C
Si32919-A-FS
Global
3
3
Yes
0 to 70 C
PCM/
GCI
Interface
Caller ID
CS
SDI
SDO
SCLK
INT
RST
PCLK
DTMF &
Tone Gen
SPI
Control
Interface
Ringing
Generator
DSP
Line Diagnostics
PLL
DC-DC
DC-DC Controller
Controller
Si3217x
ProSLIC
CODEC
SLIC
ADC
ADC
Linefeed
Control
DAC
DAC
Linefeed
Monitor
Optional FXO
TIP
RING
C1A
C1B
C2A
C2B
Isolation
Interface
Control
Isolation
Interface
Hybrid and
dc
Termination
RX
DCT
VREG
IGND
Ring Detect
Off-Hook
CID
QB
QE
FXS
TIP
FXO
BOM
DRX
DTX
Linefeed
FSYNC
Programmable
Programmable
AC
ACImpedance
Impedance
and Hybrid
FXO P/N
Si32911-A-FS
RING
Si3291x
Copyright © 2009 by Silicon Laboratories
4.14.09
Si3217x and Si3291x
ProSLIC® Single-Chip FXS Solution with FXO Option
Selected Electrical Specifications
Parameter
Ambient Temperature
Symbol
TA
Test Condition
Min
Typical
Max
Unit
F-Grade
0
25
70
°C
G-Grade
–40
25
85
°C
Supply Voltage, Si3217x
VDD
3.13
3.3
3.47
V
Battery Voltage, Si3217x
VBAT
–15
—
–136/–110
V
Maximum Loop Resistance 
(loop + load)
DC Differential Output 
Resistance
RLOOP
ILOOP=18 mA, VBAT = –48 V
—
—
2000

RDO
ILOOP < ILIM
160
—
640

Idle Channel Noise
C-Message weighted
—
8
12
dBrnC
RX and TX, dc to 3.4 kHz
—
55
—
dB
200 Hz to 1 kHz
58
60
—
dB
1 kHz to 3.4 kHz
53
58
—
dB
200 Hz to 3.4 kHz
40
—
—
dB
200 Hz to 3.4 kHz at
TIP or RING
—
50
—

Active off-hook
200 Hz to 3.4 kHz
—
25
—
mA
VTR = 0 V
—
—
45
mA
2-Wire Return Loss
200 Hz to 3.4 kHz
26
30
—
dB
Transhybrid Balance
300 Hz to 3.4 kHz
26
30
—
dB
—
32
—
°C/W
PSRR from VDD
Longitudinal to Metallic/PCM 
Balance (forward or reverse)
Metallic/PCM to Longitudinal Balance
Longitudinal Impedance
Longitudinal Current per Pin
DC Feed Current
See Table 5,
Si3217x
Data Sheet
Thermal Resistance (QFN-42)
θJA
Thermal Resistance (SOIC-16)
θJA
—
85
—
°C/W
Continuous Power Dissipation (QFN-42)
PD
TA = 85 °C
—
1.3
—
W
Continuous Power Dissipation (SOIC-16)
PD
TA = 85 °C
—
0.47
—
W
Package Information
42-Pin QFN
MM
M in
Typ
M ax
A
0.60
0.65
0.70
b
0.20
0.25
0.30
D
D2
5.00 BS C
3.35
3.40
e
E
16-Pin SOIC
7.00 BS C
E2
5.35
5.40
5.45
E3
1.65
1.70
1.75
E4
3.15
3.20
3.25
L
0.35
0.40
0.45
L1
0.05
0.10
0.15
Min
Max
A
—
1.75
A1
0.10
0.25
A2
1.25
—
b
0.31
0.51
c
0.17
0.25
D
9.90 BSC
E
6.00 BSC
E1
3.90 BSC
e
1.27 BSC
L
0.40
L2
ProSLIC
3.45
0.50 BS C
1.27
0.25 BSC
h
0.25
0.50
ø
0°
8°
Copyright © 2009 by Silicon Laboratories
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders
4.14.09