1
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
SP332
RS-232/RS-485 Multi-Mode Serial Transceiver
RS-232 Mode
Full Duplex RS-485
s
+5V-Only Single Supply Operation
s
4 Drivers, 4 Receivers RS-232
s
2 Drivers, 2 Receivers RS-485
s
Loop Back Function for Self Test
s
28 Pin SOIC Packaging
DESCRIPTION...
The SP332 is a monolithic device that contains both RS-232 and RS-485 line drivers and
receivers. The configuration of the SP332 can be changed at any time by changing the logic
state of two control input pins. The device also includes a loop back function which internally
connects driver outputs to receiver inputs for a chip self test. A Sipex-patented charge pump
(5,306,954) allows +5V-only operation.
SEL A
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
F
0.1
F
C1+
C1-
C2+
C2-
1
SEL B
2
+5V
VCC
5
GND
8
9
11
12
13
19
20
22
24
26
27
28
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T3
R1
RS-485/RS-232
RS-485/RS-232
RS-485/RS-232
TTL/CMOS
0.1
F
0.1
F
V+
V-
TTL/CMOS
SHUT
DOWN
RS-485/RS-232
RS-485/RS-232
RS-485/RS-232
4
6
7
10
14
15
16
23
25
3
RI1
RI2
TX3
TX4
TX1
TX2
TI1
TI2
TI3
TI4
RX1
RX2
TTL/CMOS
21
R3
17
18
RI4
RI3
RX3
RX4
Vcc
Vcc
LOOP
BACK
RS-485/RS-232
RS-485/RS-232
+5V
+5V
TTL/CMOS
TTL/CMOS
+5V
GND
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
F
0.1
F
VCC
V+
V-
TTL/CMOS
SHUT
DOWN
RS-232
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T2
T3
T4
TX1
TX2
TX3
TX4
TI1
TI2
TI3
TI4
RI1
RI2
RI3
RI4
RX1
RX2
RX3
RX4
1
3
4
5
6
7
8
10
0.1
F
0.1
F
C1+
C1-
C2+
C2-
9
11
12
13
14
15
16
17
18
19
20
21
22
23
SEL B
2
SEL A
24
25
26
27
28
R1
R2
R3
R4
5K
5K
5K
5K
400K
Vcc
400K
Vcc
400K
Vcc
400K
Vcc
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
LOOP
BACK
0V
0V
SP332
SP332
2
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
SPECIFICATIONS
T
MIN
to T
MAX
and V
CC
= 5V
5% unless otherwise noted.
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
RS-485 DRIVER
DC Characteristics
Differential Output Voltage
GND
V
CC
Volts
Unloaded; R=
;
see figure 1
Differential Output Voltage
2.0
5.0
Volts
With Load; R=50
(RS-422);
see figure 1
Differential Output Voltage
1.5
5.0
Volts
With Load; R=27
(RS-485);
see figure 1
Change in Magnitude of Driver
Differential Output Voltage for
Complementary States
0.2
Volts
R=27
or R=50
;
see figure 1
Driver Common-Mode Output
Voltage
3
Volts
R=27
or R=50
;
see figure 1
Input High Voltage
2.0
Volts
Applies to transmitter inputs,
SEL A, SEL B, SD, LB
Input Low Voltage
0.8
Volts
Applies to
SEL A, SEL B, SD, LB
Input Current
10
A
Applies to:
Pull-Up Current
1.5
A
transmitter inputs, LB
Pull-Down Current
3.0
A
SEL A, SEL B, SD,
Driver Short-Circuit
Current
V
OUT
= HIGH
35
250
mA
-7V
V
O
10V
V
OUT
= LOW
35
250
mA
-7V
V
O
10V
AC Characteristics
Driver Data Rate
10
Mbps
Driver Input to Output
70
180
ns
R
DIFF
=54
, C
L1
=C
L2
=100pF;
t
PLH
see figures 3 and 6
Driver Input to Output
70
180
ns
R
DIFF
=54
, C
L1
=C
L2
=100pF;
t
PHL
see figures 3 and 6
Driver Skew
5
10
ns
From output to output;
see figures 3 and 6
Driver Rise or Fall Time
3
15
40
ns
From 10% to 90%;
R
DIFF
=54
,
C
L1
=C
L2
=100pF;
see figures 3 and 6
RS-485 RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V
V
CM
12V
Input Hysteresis
70
mV
V
CM
=0V
Output Voltage High
3.5
Volts
I
O
=-4mA, V
ID
=+200mV
Output Voltage Low
0.4
Volts
I
O
=+4mA, V
ID
=-200mV
Input Resistance
12
15
k
-7V
V
CM
12V
Input Current (A, B); V
IN
= 12V
+1.5
mA
V
IN
= 12V, A is the non-inverting
receiver input. B is the inverting
receiver input
Input Current (A, B); V
IN
= -7V
-0.8
mA
V
IN
= -7V
Short Circuit Current
85
mA
0V
V
CM
V
CC
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation sections
of the specifications below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect reliability.
V
CC
............................................................................................................+12V
Input Voltages
Logic........................................................-0.5V to (V
CC
+0.5V)
Drivers..................................................-0.5V to (V
CC
+0.5V)
Receivers.................................................
30V@
100mA
Driver Outputs......................................................................................
15V
Storage Temperature..................................................-65C to +150C
Power Dissipation..........................................................................1000mW
3
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
SPECIFICATIONS (CONTINUED)
T
MIN
to T
MAX
and V
CC
= 5V
5% unless otherwise noted.
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
AC Characteristics
Receiver Data Rate
10
Mbps
Receiver Input to Output
130
250
ns
R
DIFF
=54
, C
L1
=C
L2
=100pF;
t
PLH
Figures 3 and 8
Receiver Input to Output
130
250
ns
R
DIFF
=54
, C
L1
=C
L2
=100pF;
t
PHL
Figures 3 and 7
Diff. Receiver Skew |t
PLH
-t
PHL
|
13
ns
R
DIFF
=54
, C
L1
=C
L2
=100pF;
Figures 3 and 7
RS-232 DRIVER
DC Characteristics
TTL Input Levels
V
IL
0.8
Volts
Applies to transmitter inputs,
SEL A, SEL B, SD, LB
V
IH
2.0
Volts
Applies to transmitter inputs,
SEL A, SEL B, SD, LB
Voltage Outputs
High Level Output
+5.0
+15.0
Volts
R
L
=3k
to Gnd
Low Level Output
-15.0
-5.0
Volts
R
L
=3k
to Gnd
Open Circuit Output
15
Volts
R
L
=
Short Circuit Current
100
mA
V
OUT
= 0V
Power Off Impedance
300
Ohms
V
CC
=0V; V
OUT
=
2V
AC Characteristics
Transmission Rate
120
kbps
Transition Time
1.56
s
Rise/fall time, +3V to -3V; -3V to +3V
R
L
=3k
, C
L
=2500pF
Propagation Delay
t
PHL
2
4
s
R
L
=3k
, C
L
=2500pF; From 1.5V
of T
IN
to 50% of V
OUT
t
PLH
3
6
s
R
L
=3k
, C
L
=2500pF; From 1.5V
of T
IN
to 50% of V
OUT
Slew Rate
10
30
V/
s
R
L
=3k
, C
L
=50pF; From +3V
to -3V or -3V to +3V
RS-232 RECEIVER
TTL Output Levels
V
OL
0.4
Volts
I
SINK
= 4mA
V
OH
3.5
I
SOURCE
= -4mA
Receiver Input
High Threshold
2.1
3.0
Volts
Low Threshold
0.8
1.6
Volts
Input Voltage Range
-15
+15
Volts
Input Impedance
3
5
7
kOhms
V
IN
=
15V
Hysteresis
0.2
0.5
1.0
Volts
V
CC
=+5V
AC Characteristics
Transmission Rate
120
kbps
Transition Time
50
ns
Rise/fall time 10% to 90%
Propagation Delay
t
PHL
100
300
ns
From 50% of V
IN
to 1.5V of R
OUT
t
PLH
100
200
ns
From 50% of V
IN
to 1.5V of R
OUT
POWER REQUIREMENTS
No Load Supply Current
19
25
mA
No load; V
CC
=5.0V; T
A
=25C
Full Load Supply Current
90
120
mA
RS-232 drivers R
L
=3k
to Gnd;
DC Input
RS-485 drivers R
L
=54
from
A to B; DC Input
Shutdown Supply Current
5
50
A
T
A
=25C, V
CC
=5.0V
4
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
A
V
OD
V
OC
B
R
R
Figure 1. RS-485 Driver DC Test Load Circuit
Figure 2. Receiver Timing Test Load Circuit
Figure 3. RS-485 Driver/Receiver Timing Test Circuit
Figure 4. RS-485 Driver Timing Test Load #2 Circuit
C
RL
1K
S
2
S
1
V
CC
1K
Test Point
Receiver
Output
B
A
DI
B
A
C
L1
C
L2
R
DIFF
RO
15pF
S
2
S
1
V
CC
C
L
500
Output
Under
Test
t
PLH
t
PHL
t
PLH
t
SKEW
f = 1MHz; t
R
10ns; t
F
10ns
1.5V
1.5V
1/2V
O
1/2V
O
t
SKEW
+3V
0V
B
A
V
O
V
O
+
t
R
V
O
V
A
V
B
0V
t
F
DI
DRIVER
OUTPUT
DIFFERENTIAL
OUTPUT
Figure 6. RS-485 Driver Propagation Delays
Figure 7. RS-485 Receiver Propagation Delays
V
OL
V
OH
V
OD2
+
V
OD2
A B
R
0V
1.5V
1.5V
t
PHL
t
PHL
0V
INPUT
OUTPUT
f = 1MHz; t
R
10ns; t
F
10ns
5
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
THEORY OF OPERATION...
The SP332 is a single chip device that can be
configured via software for either RS-232, RS-
485 or both interface modes at any time. The
SP332 is made up of three basic circuit ele-
ments, single-ended drivers and receivers, dif-
ferential drivers and receivers and charge pump.
DIFFERENTIAL DRIVER/RECEIVER...
RS-485, RS-422 Drivers...
The differential drivers and receivers comply
with the RS-485 and RS-422 standards. The
driver circuits are able to drive a minimum of
1.5V when terminated with a 54
resistor
across the two outputs. The typical propagation
delay from the driver input to output is 60ns. The
driver outputs are current limited to less than
250mA, and can tolerate short circuits to ground,
or to any voltage within a +10V to -7V range
with no damage.
RS-485, RS-422 Receivers...
The differential receivers of the SP332 comply
with the RS-485, RS-422 and V.11 standards.
The input to the receiver is equipped with a
common mode range of +12V to -7V. The input
threshold over this range is a minimum of
200mV. The differential receivers can receive
data up to 10Mbps. The typical propagation
delay from the receiver input to output is 90ns.
SINGLE ENDED DRIVER/RECEIVER...
RS-232 (V.28) Drivers...
The single-ended drivers and receivers comply
the with the RS-232E and V.28 standards. The
drivers are inverting transmitters which accept
either TTL or CMOS inputs and output the RS-
232 signals with an inverted sense relative to the
input logic levels. Typically, the RS-232 driver
output voltage swing is
9V with no load and is
guaranteed to be greater than
5V under full
load. The drivers rely on the V+ and V- voltages
generated by the on-chip charge pump to main-
tain proper RS-232 output levels. With worst
case load conditions of 3k
and 2500pF, the
four RS-232 drivers can still maintain
5V
output levels. The drivers can operate up to
120kbps; the propagation delay from input to
output is typically 2
s.
RS-232 (V.28) Receivers...
The RS-232 receivers convert RS-232 input
signals to inverted TTL signals. Each of the four
receivers features 500mV of hysteresis margin
to minimize the affects of noisy tranmission
lines. The inputs also have a 5k
resistor to
ground, in an open circuit situation the input of
the receiver will be forced low, committing the
output to a logic high state. The input resistance
will maintain 3k
-7k
over a
15V range. The
maximum operating voltage range for the re-
ceiver is
30V, under these conditions the input
current to the receiver must be limited to less
than 100mA. Due to the on-chip ESD protection
circuitry, the receiver inputs will be clamped to
15V levels. The RS-232 receivers can operate
up to 120kbps.
CHARGE PUMP...
The charge pump is a Sipex-patented design
(5,306,954) and uses a unique approach com-
pared to older less-efficient designs. The charge
pump still requires four external capacitors, but
uses a four-phase voltage shifting technique to
attain symmetrical 10V power supplies. Figure
8a shows the waveform found on the positive
side of capacitor C2, and Figure 8b shows the
negative side of capacitor C2. There is a free-
running oscillator that controls the four phases
of the voltage shifting. A description of each
phase follows.
Phase 1
-Vss charge storage- During this phase of the
clock cycle, the positive side of capacitors C1
and C2 are initially charged to +5V. C1+ is then
switched to ground and charge in C1- is trans-
ferred to C2-. Since C2+ is connected to +5V,
the voltage potential across capacitor C2 is
now 10V.
Phase 2
-Vss transfer- Phase two of the clock connects
the negative terminal of C2 to the Vss storage
capacitor and the positive terminal of C2 to
ground, and transfers the generated -10V to C3.
Simultaneously, the positive side of capacitor
C1 is switched to +5V and the negative side is
connected to ground.
6
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
Figure 8. Charge Pump Waveforms
1
F
1
F
1
F
1
F
DX
T
P
S
TXD (103)
RX
T
P
S
DX
T
U
W
SCTE (113)
RX
T
U
W
T
AA
Y
TXC (114)
DX
T
Y
T
X
V
RXC (115)
T
X
V
RX
T
T
R
TXD (104)
T
T
R
RX
RX
DX
DX
AA
T
=
50
50
125
1
F
1
F
V
CC2
B
A
GND (102)
CABLE SHIELD
B
A
V
CC1
1
F
1
F
DX
DX
RX
RX
RX
RX
DX
DX
1
F
1
F
1
F
1
F
RX
RX
DX
DX
DX
DX
RX
RX
1
F
1
F
ISO 2593
34-PIN DTE/DCE
INTERFACE
CONNECTOR
ISO 2593
34-PIN DTE/DCE
INTERFACE
CONNECTOR
V.35
V.35
RS-232
RS-232
H
DTR (108)
H
C
RTS (105)
C
E
DSR (107)
E
D
CTS (106)
D
F
DCD (109)
F
NN
TM (142)
N
RDL (140)
N
L
LLB (141)
L
NN
OPTIONAL
SIGNALS
V
CC1
5V
V
CC2
5V
10V
b) C
2
GND
GND
a) C
2
+
+10V
Figure 9. Charge Pump Phase 1
Figure 10. Charge Pump Phase 2
Figure 11. Charge Pump Phase 3
Figure 12. Charge Pump Phase 4
V
CC
= +5V
+10V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
V
CC
= +5V
5V
5V
+5V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
V
CC
= +5V
10V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
V
CC
= +5V
5V
+5V
5V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
7
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
RS-232 Mode
RS-485 Mode
Phase 3
-Vdd charge storage- The third phase of the
clock is identical to the first phase- the trans-
ferred charge in C1 produces -5V in the negative
terminal of C1, which is applied to the negative
side of capacitor C2. Since C2+ is at +5V, the
voltage potential across C2 is 10V.
Phase 4
-Vdd transfer- The fourth phase of the clock
connects the negative terminal of C2 to ground
and transfers the generated 10V across C2 to C4,
the Vdd storage capacitor. Simultaneously with
this, the positive side of capacitor C1 is switched
to +5V and the negative side is connected to
ground, and the cycle begins again.
Since both V+ and V- are separately generated
from Vcc in a no load condition, V+ and V- will
be symmetrical. Older charge pump approaches
that generate V- from V+ will show a decrease
in the magnitude of V- compared to V+ due to
the inherent inefficiencies in the design.
The clock rate for the charge pump typically
operates at 15kHz. The external capacitors must
be 0.1
F with a 16V breakdown rating.
SP332 TYPICAL OPERATING CIRCUIT
+5V
GND
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
F
0.1
F
VCC
V+
V-
TTL/CMOS
SHUT
DOWN
RS-232
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T2
T3
T4
TX1
TX2
TX3
TX4
TI1
TI2
TI3
TI4
RI1
RI2
RI3
RI4
RX1
RX2
RX3
RX4
1
3
4
5
6
7
8
10
0.1
F
0.1
F
C1+
C1-
C2+
C2-
9
11
12
13
14
15
16
17
18
19
20
21
22
23
SEL B
2
SEL A
24
25
26
27
28
R1
R2
R3
R4
5K
5K
5K
5K
400K
Vcc
400K
Vcc
400K
Vcc
400K
Vcc
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
LOOP
BACK
0V
0V
SEL A
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
F
0.1
F
C1+
C1-
C2+
C2-
1
SEL B
2
+5V
VCC
5
GND
8
9
11
12
13
19
20
22
24
26
27
28
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T3
R1
RS-485
RS-485
RS-485
TTL/CMOS
0.1
F
0.1
F
V+
V-
TTL/CMOS
SHUT
DOWN
RS-485
RS-485
RS-485
4
6
7
10
14
15
16
23
25
3
RI1
RI2
TX3
TX4
TX1
TX2
TI1
TI2
TI3
TI4
RX1
RX2
TTL/CMOS
21
R3
17
18
RI4
RI3
RX3
RX4
15K
15K
15K
15K
400K
Vcc
400K
Vcc
LOOP
BACK
RS-485
RS-485
+5V
+5V
SP332
SP332
8
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
SEL A
0
0
1
1
SEL B
0
1
0
1
LOOPBACK
1
1
1
1
SHUTDOWN
0
0
0
0
T4
TX4
TI4
1
3
R1
RI1
RX1
15
19
R2
RI2
RX2
16
20
R3
RI3
RX3
17
21
R4
RI4
RX4
18
22
T1
TX1
TI1
6
26
T2
TX2
TI2
7
27
T3
TX3
TI3
4
28
SP332 CONTROL LOGIC CONFIGURATION
T1
TX1 6
TI1
26
T2
TI2
TX2 7
27
R1
RI1
RX1
15
19
R2
RX2
RI2 16
20
28
4
TX3
3
TX4
TI3
T3
18
RI4
17
RI3
21 RX3
R3
21
26
T1
6
TX1
TI1
7
TX2
19
15
RI1
RX1
R1
16
RI2
T4
TX4
TI4
1
3
T3
TX3
TI3
4
28
R3
RI3
RX3
17
R4
RI4
RX4
18
22
26
T1
6
TX1
TI1
7
TX2
28
4
TX3
3
TX4
TI3
T3
19
15
RI1
RX1
R1
16
RI2
18
RI4
17
RI3
21 RX3
R3
SEL A
0
0
1
1
SEL B
0
1
0
1
LOOPBACK
0
0
0
0
SHUTDOWN
0
0
0
0
16
17
18
15
RX4
22
RX1
19
RX3
21
T4
TX4
TI4
1
3
R1
RI1
R2
RI2
RX2
20
R3
RI3
R4
RI4
T1
TX1 6
TI1
26
T2
TX2 7
TI2
27
T3
TX3 4
TI3
28
18
RI4
17
RI3
15
T1
TX1 6
TI1
26
T2
TX2 7
TI2
27
R1
RI1
RX1
19
R2
RI2 16
RX2
20
4
TX3
3
TX4
28 TI3
T3
21 RX3
R3
21
26
T1
6
TX1
TI1
7
TX2
19
15
RI1
RX1
R1
16
RI2
T4
TX4
TI4
1
3
T3
TX3
TI3
4
28
R3
RI3
RX3
17
R4
RI4
RX4
18
22
26
T1
6
TX1
TI1
7
TX2
28
4
TX3
3
TX4
TI3
T3
19
15
RI1
RX1
R1
16
RI2
18
RI4
17
RI3
21 RX3
R3
Receiver Inputs are inactive in Loopback Mode (LOOPBACK = 0)
Driver Outputs are Tri-Stated in Loopback Mode (LOOPBACK = 0)
Unused Outputs are Tri-Stated
9
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
D
E
H
PACKAGE: PLASTIC
SMALL OUTLINE (SOIC)
A
A1
L
B
e
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
A
A1
B
D
E
e
H
L
28PIN
0.090/0.100
(2.29/2.54)
0.004/0.010
(0.102/0.254)
0.015/0.020
(0.38/0.508)
0.720/0.730
(18.24/18.54)
0.395/0.405
(10.03/10.29)
0.050 BSC
(1.270 BSC)
0.531/0.545
(13.49/13.84)
0.021/0.041
(0.53/1.04)
0/8
(0/8)
0.093/0.104
(2.352/2.649)
0.004/0.012
(0.102/0.300)
0.013/0.020
(0.330/0.508)
0.697/0.713
(17.70/18.09)
0.291/0.299
(7.402/7.600)
0.050 BSC
(1.270 BSC)
0.394/0.419
(10.00/10.64)
0.016/0.050
(0.406/1.270)
0 / 8
( 0 / 8 )
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TI3
TI2
TI1
SD
SEL A
LB
RX4
RX3
RX2
RX1
RI4
RI3
RI2
RI1
TI4
SEL B
TX4
TX3
VCC
TX1
TX2
GND
C1+
V+
C2+
C1-
C2-
V-
SP332
10
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
ORDERING INFORMATION
Model
Temperature Range
Package Types
SP332CT .............................................................................. 0C to +70C ......................................................................................... 28-Pin SOIC
SP332ET ............................................................................. -40C to +85C ........................................................................................ 28-Pin SOIC
Corporation
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.
Sipex Corporation
Headquarters and
Sales Office
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: sales@sipex.com
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
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