SILABS SI3226

Si3226/7 and Si3208/9
Dual ProSLIC® with DC-DC Controller
Description
- Software-programmable parameters:
- Ringing frequency, amplitude, cadence, and wave-
ProSLIC®
The Dual
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 twochannel 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 highvoltage 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).
shape
Two-wire ac impedance
Transhybrid balance
DC current loop feed (10–45 mA)
Loop closure and ring trip thresholds
Ground key detect threshold
-
Features
Performs all BORSCHT functions
Ideal for short- or long-loop applications
Internal balanced or unbalanced ringing
Low power consumption
Integrated dc-dc controller
Applications
-
Low-power sleep mode
On-hook transmission
Customer Premises Equipment (CPE)
Optical Network Terminals (ONT)
Private Branch Exchange (PBX)
Cable EMTAs, ATAs, VoIP Gateways
FSYNC
DRX
DTX
PCM/
GCI
Interface
Caller ID
CS
SDI
SDO
SCLK
INT
SPI
Control
Interface
Ringing
Generator
DSP
Si3206
Si3208/9
CODEC
SLIC
ADC
Linefeed
Control
DAC
Linefeed
Monitor
CODEC
SLIC
ADC
Linefeed
Control
DAC
Linefeed
Monitor
Line Diagnostics
RST
PCLK
DTMF &
Tone Gen
Programmable
Programmable
AC
ACImpedance
Impedance
and Hybrid
Si3226
Si3226/7
DC-DC
DC-DCControllers
Controller
PLL
Linefeed
Wideband CODEC (Si3227)
Linefeed
-
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
TIP
Channel 1
RING
TIP
Channel 2
RING
VBAT
VDC
ProSLIC
DC-DC BOM
Copyright © 2007 by Silicon Laboratories
6.1.07
Si3226/7 and Si3208/9
Dual ProSLIC® with DC-DC Controller
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, Si322x
VDD
3.13
3.3
3.47
V
Supply Voltage, Si3209/8
VDD
3.13
3.3
3.47
V
Battery Voltage, Si3209/8
VBAT
–9
—
–135/–110
V
Maximum Loop Resistance
(loop + load)
DC Differential Output
Resistance
RLOOP
ILOOP=18 mA, VBAT = –48 V
—
—
2000
Ω
RDO
ILOOP < ILIM
160
—
640
Ω
Idle Channel Noise
PSRR from VDD
Longitudinal to Metallic/PCM
Balance (forward or reverse)
Metallic/PCM to Longitudinal Balance
Longitudinal Impedance
Longitudinal Current per Pin
DC Current
C-Message weighted
—
8
12
dBrnC
RX and TX, dc to 3.4 kHz
40
—
—
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
—
Ω
Active off-hook
200 Hz to 3.4 kHz
—
—
30
mApk
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
—
1.7
—
W
Thermal Resistance (QFN-40)
θJA
Continuous Power Dissipation
(QFN-40)
PD
TA = 85 °C
Package Information
64-Pin TQFP
MM
Min
Typ
Max
A
—
—
1.20
b
0.17
0.22
0.27
D
12.00 BSC
D1
10.00 BSC
e
0.50 BSC
E
12.00 BSC
E1
10.00 BSC
40-Pin QFN
MM
Min
Typ
Max
A
0.80
0.90
1.00
A1
0.00
0.02
0.05
b
0.18
0.25
0.30
D
D2
e
E
ProSLIC
6.00 BSC
4.10
4.30
4.40
0.50 BSC
6.00 BSC
E2
4.10
4.30
4.40
L
0.30
0.40
0.50
L1
0.03
0.05
0.08
Copyright © 2007 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
6.1.07