®
SP508
Rugged 20Mbps, 8 Channel Multi-Protocol Transceiver
with Programmable DCE/DTE and Termination Resistors
FEATURES
■
20Mbps Differential Transmission Rates
■
15kV ESD Tolerance for Analog I/Os
■
Internal Transceiver Termination Resistors
for V.11/V.35
■
Interface Modes:
✓
RS-232 (V.28)
✓
X.21 (V.11)
✓
RS-449/V.36
(V.10 & V.11)
✓
EIA-530 (V.10 & V.11)
✓
EIA-530A (V.10 & V.11)
✓
V.35
Now Available in Lead Free Packaging
Refer to page 7 for pinout
■
Easy Flow-Through Pinout
■
+5V Only Operation
■
Individual Driver/Receiver Enable/Disable Controls
■
Operates in DTE or DCE Mode
APPLICATIONS
■
Router
■
Software Selectable Protocols with 3-Bit Word
■
Frame Relay
■
Eight Drivers and Eight Receivers
■
CSU
■
V.35/V.11 Receiver Termination Network
■
DSU
Disable Option
■
PBX
■
Internal Line or Digital Loopback Testing
■
Adheres to NET1/NET2 and TBR-2 Requirements
■
Secure Communication Terminals
DESCRIPTION
The SP508 is a monolithic device that supports eight (8) popular serial interface standards for
Wide Area Network (WAN) connectivity. The SP508 is fabricated using a low power BiCMOS
process technology, and incorporates a Sipex regulated charge pump allowing +5V only
operation. Sipex's patented charge pump provides a regulated output of +5.8V, which will
provide enough voltage for compliant operation in all modes. Eight (8) drivers and eight (8)
receivers can be configured via software for any of the above interface modes at any time. The
SP508 requires no additional external components for compliant operation for all of the eight
(8) modes of operation other than four capacitors used for the internal charge pump. All
necessary termination is integrated within the SP508 and is switchable when V.35 drivers and
V.35 receivers, or when V.11 receivers are used. The SP508 provides the controls and
transceiver availability for operating as either a DTE or DCE.
Additional features with the SP508 include internal loopback that can be initiated in any of the
operating modes by use of the LOOPBACK pin. While in loopback mode, receiver outputs are
internally connected to driver inputs creating an internal signal path bypassing the serial
communications controller for diagnostic testing. The SP508 also includes a latch enable pin
with the driver and receiver address decoder. The internal V.11 or V.35 receiver termination
can be switched off using a control pin (TERM_OFF) for monitoring applications. All eight (8)
drivers and receivers in the SP508 include separate enable pins for added convenience. The
SP508 is ideal for WAN serial ports in networking equipment such as routers, access
concentrators, network muxes, DSU/CSU's, networking test equipment, and other access
devices.
Applicable U.S. Patents-5,306,954; and others patents pending
Date: 8/19/04
SP508 Enhanced WAN Multi–Protocol Serial Transceiver
© Copyright 2004 Sipex Corporation
1
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
................................................................................................ +7V
Input Voltages:
Logic ................................................ -0.3V to (V
CC
+0.5V)
Drivers ............................................. -0.3V to (V
CC
+0.5V)
Receivers ...........................................................
±15.5V
Output Voltages:
Logic ................................................ -0.3V to (V
CC
+0.5V)
Drivers ...................................................................
±12V
Receivers ........................................ -0.3V to (V
CC
+0.5V)
Storage Temperature ................................................ -65
°
C to +150°C
Power Dissipation ................................................................. 1520mW
(derate 19.0mW/
°
C above +70
°
C)
STORAGE CONSIDERATIONS
Due to the relatively large package size, storage in a low
humidity environment is preferred. Large high density plastic
packages are moisture sensitive and should be stored in Dry
Vapor Barrier Bags. Prior to usage, the parts should remain
bagged and stored below 40°C and 60%RH. If the parts are
removed from the bag, they should be used within 48 hours or
stored in an environment at or below 20%RH. If the above
conditions cannot be followed, the parts should be baked for
four hours at 125°C in order to remove moisture prior to
soldering. Sipex ships the 100-pin LQFP in Dry Vapor Barrier
Bags with a humidity indicator card and desiccant pack. The
humidity indicator should be below 30%RH.
Package Derating:
ø
JA
.................................................................................................................
52.7
°C/W
ø
JC ....................................................................................................................
6.5
°C/W
ELECTRICAL SPECIFICATIONS
T
A
= 0°C to +70°C and V
CC
= +4.75V to +5.25V unless otherwise noted. The
♦
denotes the specifications which applies to full
temperature range of -40°C to =+85°C, unless otherwise specified.
PARAMETER
LOGIC INPUTS
V
IL
V
IH
MIN.
TYP.
MAX.
0.8
UNITS
Volts
Volts
Volts
Volts
♦
♦
♦
♦
CONDITIONS
2.0
0.4
2.4
LOGIC OUTPUTS
V
OL
V
OH
I
OUT
= –3.2mA
I
OUT
= 1.0mA
V.28 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Loaded Voltage
Short-Circuit Current
Power-Off Impedance
AC Parameters
Outputs
Transition Time
Instantaneous Slew Rate
Propagation Delay
t
PHL
t
PLH
Max.Transmission Rate
±15
±15
±100
Volts
Volts
mA
Ω
µs
V/µs
µs
µs
kbps
♦
♦
♦
♦
♦
♦
♦
♦
per
Figure 1
per
Figure 2
per
Figure 4, V
OUT
=0V
per
Figure 5
V
CC
= +5V for AC parameters
per
Figure 6
; +3V to -3V
per
Figure 3
±5.0
300
1.5
30
0.5
0.5
120
1
1
230
5
5
V.28 RECEIVER
DC Parameters
Inputs
Input Impedance
Open-Circuit Bias
HIGH Threshold
LOW Threshold
AC Parameters
Propagation Delay
t
PHL
t
PLH
3
0.8
50
50
1.7
1.2
100
100
7
+2.0
3.0
kΩ
Volts
Volts
Volts
ns
ns
♦
♦
♦
♦
♦
♦
per
Figure 7
per
Figure 8
V
CC
= +5V for AC parameters
500
500
Date: 8/19/04
SP508 Enhanced WAN Multi–Protocol Serial Transceiver
© Copyright 2004 Sipex Corporation
2
ELECTRICAL SPECIFICATIONS
T
A
= 0°C to +70°C and V
CC
= +4.75V to +5.25V unless otherwise noted. The
♦
denotes the specifications which applies to full temperature
range of -40°C to =+85°C, unless otherwise specified.
PARAMETER
V.28 RECEIVER (cont
)
AC Parameters (cont.)
Max.Transmission Rate
MIN.
TYP.
MAX. UNITS
CONDITIONS
120
235
kbps
V.10 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test-Terminated Voltage
Short-Circuit Current
Power-Off Current
AC Parameters
Outputs
Transition Time
Propagation Delay
t
PHL
t
PLH
Max.Transmission Rate
±4.0
0.9V
OC
±6.0
±150
±100
200
30
30
120
100
100
500
500
Volts
Volts
mA
µA
ns
ns
ns
kbps
♦
♦
♦
♦
♦
♦
♦
♦
per
Figure 9
per
Figure 10
per
Figure 11
per
Figure 12
V
CC
= +5V for AC parameters
per
Figure 13
; 10% to 90%
V.10 RECEIVER
DC Parameters
Inputs
Input Current
Input Impedance
Sensitivity
AC Parameters
Propagation Delay
t
PHL
t
PLH
Max.Transmission Rate
–3.25
4
+3.25
±0.3
60
60
120
mA
kΩ
Volts
ns
ns
kbps
♦
♦
♦
♦
♦
♦
per
Figures 14
and
15
V
CC
= +5V for AC parameters
V.11 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test Terminated Voltage
Balance
Offset
Short-Circuit Current
Power-Off Current
AC Parameters
Outputs
Transition Time
Propagation Delay
t
PHL
t
PLH
Differential Skew
(|t
phl
-t
plh
|)
Max.Transmission Rate
Channel to Channel Skew
±6.0
±2.0
0.5V
OC
0.67V
OC
±0.4
+3.0
±150
±100
10
30
30
5
20
2
60
60
10
Volts
Volts
Volts
Volts
Volts
mA
µA
ns
ns
ns
ns
Mbps
ns
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
per
Figure 16
per
Figure 17
per
Figure 17
per
Figure 17
per
Figure 18
per
Figure 19
V
CC
= +5V for AC parameters
per
Fig. 21
and
36
; 10% to 90%
Using C
L
= 50pF;
per
Figures 33
and
36
per
Figures 33
and
36
per
Figures 33
and
36
V.11 RECEIVER
DC Parameters
Inputs
Common Mode Range
Sensitivity
–7
+7
±0.2
Volts
Volts
♦
♦
Date: 8/19/04
SP508 Enhanced WAN Multi–Protocol Serial Transceiver
© Copyright 2004 Sipex Corporation
3
ELECTRICAL SPECIFICATIONS
T
A
= 0°C to +70°C and V
CC
= +4.75V to +5.25V unless otherwise noted. The
♦
denotes the specifications which applies to full temperature
range of -40°C to =+85°C, unless otherwise specified.
PARAMETER
V.11 RECEIVER (cont)
DC Parameters (cont.)
Input Current
Current w/ 100Ω Termination
Input Impedance
AC Parameters
Propagation Delay
t
PHL
t
PLH
Skew(|t
phl
-t
plh
|)
Max.Transmission Rate
Channel to Channel Skew
MIN.
TYP.
MAX. UNITS
CONDITIONS
–3.25
4
30
30
5
20
2
±3.25
±60.75
mA
mA
kΩ
ns
ns
ns
Mbps
ns
♦
♦
♦
♦
♦
♦
♦
per
Figure 20
and
22
;
power on or off
per
Figure 23
and
24
V
CC
= +5V for AC parameters
Using C
L
= 50pF;
per
Figures 33
and
38
per
Figures 33
and
38
per
Figure 33
60
60
10
V.35 DRIVER
DC Parameters
Outputs
Test Terminated Voltage
Offset
Output Overshoot
Source Impedance
Short-Circuit Impedance
AC Parameters
Outputs
Transition Time
Propagation Delay
t
PHL
t
PLH
Differential Skew
(|t
phl
-t
plh
|)
Max.Transmission Rate
Channel to Channel Skew
±0.44
-0.2V
ST
50
135
7
30
30
5
20
5
±0.66
±0.6
+0.2V
ST
150
165
20
60
60
10
Volts
Volts
Volts
Ω
Ω
ns
ns
ns
ns
Mbps
ns
per
Figure 25
per
Figure 25
per
Figure 25
; V
ST = Steady state value
per
Figure 27
; Z
S
= V
2
/V
1
x 50
per
Figure 28
V
CC
= +5V for AC parameters
per
Figure 29
; 10% to 90%
per
Figure 33
and
36
; C
L
= 20pF
per
Figure 33
and
36
; C
L
= 20pF
per
Figure 33
and
36
; C
L
= 20pF
♦
♦
♦
♦
♦
♦
♦
♦
♦
V.35 RECEIVER
DC Parameters
Inputs
Sensitivity
Source Impedance
Short-Circuit Impedance
AC Parameters
Propagation Delay
t
PHL
t
PLH
Skew(|t
phl
-t
plh
|)
Max.Transmission Rate
Channel to Channel Skew
Driver Output 3-State Current
Rcvr Output 3-State Current
±50
90
135
30
30
5
20
2
500
1
+200
110
165
60
60
10
mV
Ω
Ω
ns
ns
ns
Mbps
ns
µA
µA
♦
♦
♦
♦
♦
♦
♦
per
Figure 30
; Z
S
= V
2
/V
1
x 50Ω
per
Figure 31
V
CC
= +5V for AC parameters
per
Figure 33
and
38
; C
L
= 20pF
per
Figure 33
and
38
; C
L
= 20pF
per
Figure 33
; C
L
= 20pF
TRANSCEIVER LEAKAGE CURRENT
10
per
Figure 32;
Drivers disabled
T
X
& R
X
disabled, 0.4V - V
O
- 2.4V
POWER REQUIREMENTS
V
CC
I
CC
(Shutdown Mode)
(V.28/RS-232)
(V.11/RS-422)
(EIA-530 & RS-449)
(V.35)
(EIA-530A)
4.75
5.00
1
95
230
270
170
200
5.25
Volts
µA
mA
mA
mA
mA
mA
All I
CC
values are with V
CC
= +5V
f
IN
= 120kbps; Drivers active & loaded
f
IN
= 10Mbps; Drivers active & loaded
f
IN
= 10Mbps; Drivers active & loaded
V.35 @ f
IN
= 10Mbps, V.28 @ 20kbps
f
IN
= 10Mbps; Drivers active & loaded
Date: 8/19/04
SP508 Enhanced WAN Multi–Protocol Serial Transceiver
© Copyright 2004 Sipex Corporation
4
OTHER AC CHARACTERISTICS
T
A
= +25°C and V
CC
= +5.0V unless otherwise noted.
PARAMETER
MIN.
TYP. MAX. UNITS
CONDITIONS
DRIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE
RS-232/V.28
t
PZL
; Tri-state to Output LOW
t
PZH
; Tri-state to Output HIGH
t
PLZ
; Output LOW to Tri-state
t
PHZ
; Output HIGH to Tri-state
RS-423/V.10
t
PZL
; Tri-state to Output LOW
t
PZH
; Tri-state to Output HIGH
t
PLZ
; Output LOW to Tri-state
t
PHZ
; Output HIGH to Tri-state
RS-422/V.11
t
PZL
; Tri-state to Output LOW
t
PZH
; Tri-state to Output HIGH
t
PLZ
; Output LOW to Tri-state
t
PHZ
; Output HIGH to Tri-state
V.35
t
PZL
; Tri-state to Output LOW
t
PZH
; Tri-state to Output HIGH
t
PLZ
; Output LOW to Tri-state
t
PHZ
; Output HIGH to Tri-state
RS-232/V.28
t
PZL
; Tri-state to Output LOW
t
PZH
; Tri-state to Output HIGH
t
PLZ
; Output LOW to Tri-state
t
PHZ
; Output HIGH to Tri-state
RS-423/V.10
t
PZL
; Tri-state to Output LOW
t
PZH
; Tri-state to Output HIGH
t
PLZ
; Output LOW to Tri-state
t
PHZ
; Output HIGH to Tri-state
0.11
0.11
0.05
0.05
0.07
0.05
0.55
0.12
0.04
0.05
0.03
0.11
0.85
0.36
0.06
0.05
5.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
10.0
2.0
2.0
2.0
10.0
2.0
2.0
2.0
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
40;
S
2
closed
C
L
= 100pF,
Fig. 34
&
37;
S
1
closed
C
L
= 100pF,
Fig. 34
&
37;
S
2
closed
C
L
= 15pF,
Fig. 34
&
37;
S
1
closed
C
L
= 15pF,
Fig. 34
&
37;
S
2
closed
C
L
= 100pF,
Fig. 34
&
37;
S
1
closed
C
L
= 100pF,
Fig. 34
&
37;
S
2
closed
C
L
= 15pF,
Fig. 34
&
37;
S
1
closed
C
L
= 15pF,
Fig. 34
&
37;
S
2
closed
RECEIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE
0.05
0.05
0.65
0.65
0.04
0.03
0.03
0.03
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
µs
µs
µs
µs
µs
µs
µs
µs
C
L
= 100pF,
Fig. 35
&
40;
S
1
closed
C
L
= 100pF,
Fig. 35
&
40;
S
2
closed
C
L
= 100pF,
Fig. 35
&
40;
S
1
closed
C
L
= 100pF,
Fig. 35
&
40;
S
2
closed
C
L
= 100pF,
Fig. 35
&
40;
S
1
closed
C
L
= 100pF,
Fig. 35
&
40;
S
2
closed
C
L
= 100pF,
Fig. 35
&
40;
S
1
closed
C
L
= 100pF,
Fig. 35
&
40;
S
2
closed
Date: 8/19/04
SP508 Enhanced WAN Multi–Protocol Serial Transceiver
© Copyright 2004 Sipex Corporation
5
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