SP506CM-L [EXAR]
5V Single Chip WAN Multi-Mode Serial Transceiver; 5V单芯片WAN多模式串行收发器
| 型号： | SP506CM-L |
| 厂家： | 
EXAR CORPORATION |
| 描述： | 5V Single Chip WAN Multi-Mode Serial Transceiver |
| 文件： | 总21页 (文件大小：906K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SP506
5V Single Chip WAN Multi-Mode Serial Transceiver
■ Interface Modes Supported:
✓ RS-232 (V.28)
✓ X.21/RS-422 (V.11)
✓ EIA-530 (V.10 & V.11) ✓ EIA-530A (V.10 & V.11)
✓ RS-449 (V.10 & V.11) ✓ V.35 (V.35 & V.28)
✓ V.36 (V.10 & V.11)
■ Software Selectable Protocol
■ Highest Differential Transmission Rates
at over 20Mbps
■ +5V Only Operation
■ Seven (7) Drivers and Seven (7) Receivers
■ Driver and Receiver Tri-state Control
■ Internal Transceiver Termination Resistors for
V.11 and V.35 Protocols
✓ RS-485 (unterminated V.11)
RxD
SDEN
TREN
1
60 GND
59 SD(b)
58 TR(a)
57 GND
56 TR(b)
2
3
4
RSEN
LLEN
5
TTEN
6
55 V
CC
SCTEN
LATCH
7
54 RS(a)
53 GND
52 RS(b)
51 LL(a)
50 GND
49 LL(b)
8
9
DEC
3
DEC 10
2
SP506
DEC 11
1
DEC 12
0
DTR 13
TxD 14
TxC 15
RTS 16
RL 17
48 V
CC
47 RL(a)
46 GND
45 RL(b)
44 ST(b)
43 GND
42 ST(a)
■ Loopback Self-Test Mode
RLEN 18
DCD 19
RxC 20
■ Improved ESD Tolerance for Analog I/Os
■ Compliant to NET1/2 and TBR2 Physical Layer
Requirements
41
V
CC
■ Used in WAN Serial Ports in Routers, Switches,
DSU/CSU's and other Access Devices
DESCRIPTION
The SP506 is a monolithic IC that supports eight (8) popular serial interface standards for DTE
to DCE connectivity. The SP506 is pin-to-pin compatible to our SP505 multi-protocol transceiver
butwithfasterthroughput.Theseven(7)driversandseven(7)receiverscantransmitandreceive
signals at 20Mbps. As with the SP505, the SP506 requires no additional external components
for compliant operation for all of the eight (8) modes of operation. All necessary termination is
integrated within the SP506 and is switchable when V.35 drivers, V.35 receivers, and V.11
receivers are used. The SP506 can operate as either a DTE or DCE.
Additional features with the SP506 include internal loopback that can be initiated in either single-
ended or differential modes. While in loopback mode, driver outputs are internally connected to
receiver inputs creating an internal signal path convenient for diagnostic testing. This eliminates
theneedforanexternalloopbackplug. TheSP506alsoincludesalatchenablepinwiththedriver
and receiver address decoder. Tri-state ability for the driver and receiver outputs is controlled by
supplying a 4-bit word into the address decoder. Seven (7) drivers and one (1) receiver in the
SP506 include separate enable pins for added convenience.
V.35
EIA-530
WAN
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar 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.
STORAGE CONSIDERATIONS
Due to the relatively large package size of the 80-pin
quad flat-pack, 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
baggedandstoredbelow40°Cand60%RH. Iftheparts
are removed from the bag, they should be used within
48hoursorstoredinanenvironmentatorbelow20%RH.
If the above conditions cannot be followed, the parts
should be baked for four hours at 125°C in order
remove moisture prior to soldering. Exar ships the
80-pin QFP in Dry Vapor Barrier Bags with a humidity
indicator card and desiccant pack. The humidity indicator
should be below 30%RH.
VCC............................................................................+7V
Input Voltages:
Logic...............................-0.3Vto(VCC+0.5V)
Drivers............................-0.3Vto(VCC+0.5V)
Receivers........................................ 15.5V
Output Voltages:
Logic................................-0.3Vto(VCC+0.5V)
Drivers................................................ 15V
Receivers........................-0.3Vto(VCC+0.5V)
StorageTemperature..........................-65°Cto+150°C
Power Dissipation per package
80-pinQFP(derate18.3mWoCabove+70oC)...1500mW
SPECIFICATIONS
TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted.
MIN.
TYP.
MAX.
0.8
UNITS
CONDITIONS
LOGIC INPUTS
VIL
VIH
Volts
Volts
2.0
LOGIC OUTPUTS
VOL
VOH
0.4
Volts
Volts
IOUT= –3.2mA
IOUT= 1.0mA
2.4
V.28 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Loaded Voltage
Short-Circuit Current
Power-Off Impedance
AC Parameters
Outputs
15
15
100
Volts
Volts
mA
per Figure 1
per Figure 2
per Figure 4
per Figure 5
5.0
300
Ω
VCC = +5V for AC parameters
Transition Time
Instantaneous Slew Rate
Propagation Delay
tPHL
1.5
30
µs
per Figure 6; +3V to -3V
per Figure 3
V/µs
0.5
0.5
120
1
1
230
5
5
µs
µs
kbps
tPLH
Max.Transmission Rate
V.28 RECEIVER
DC Parameters
Inputs
Input Impedance
Open-Circuit Bias
HIGH Threshold
LOW Threshold
AC Parameters
Propagation Delay
tPHL
3
7
+2.0
3.0
kΩ
per Figure 7
per Figure 8
Volts
Volts
Volts
1.7
1.2
0.8
VCC = +5V for AC parameters
50
50
100
100
500
500
ns
ns
tPLH
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
2
SPECIFICATIONS
TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted.
MIN.
TYP.
MAX.
UNITS
kbps
CONDITIONS
V.28 RECEIVER (continued)
AC Parameters (cont.)
Max.Transmission Rate
120
230
V.10 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
4.0
6.0
Volts
Volts
mA
per Figure 9
per Figure 10
per Figure 11
per Figure 12
Test-Terminated Voltage 0.9VOC
Short-Circuit Current
Power-Off Current
AC Parameters
150
100
µA
VCC = +5V for AC parameters
Outputs
Transition Time
200
ns
per Figure 13; 10% to 90%
Propagation Delay
tPHL
tPLH
50
50
100
100
500
500
ns
ns
Max.Transmission Rate
120
kbps
V.10 RECEIVER
DC Parameters
Inputs
Input Current
Input Impedance
Sensitivity
–3.25
4
+3.25
0.3
mA
kΩ
Volts
per Figures 14 and 15
AC Parameters
Propagation Delay
tPHL
VCC = +5V for AC parameters
50
50
120
120
250
250
ns
ns
tPLH
Max.Transmission Rate
120
kbps
V.11 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test Terminated Voltage
5.0
Volts
Volts
Volts
Volts
Volts
mA
per Figure 16
per Figure 17
2.0
0.5VOC
0.67VOC
0.4
+3.0
150
Balance
Offset
Short-Circuit Current
Power-Off Current
AC Parameters
Outputs
per Figure 17
per Figure 17
per Figure 18
per Figure 19
100
µA
VCC = +5V for AC parameters
Transition Time
Propagation Delay
tPHL
20
ns
per Figures 21 and 36; 10% to 90%
50
50
65
65
10
85
85
20
ns
ns
ns
per Figures 33 and 36, CL = 50pF
per Figures 33 and 36, CL = 50pF
per Figures 33 and 36, CL = 50pF
per Figure 33, CL = 50pF
tPLH
Differential Skew
Max.Transmission Rate
20
Mbps
fIN = 10MHz
V.11 RECEIVER
DC Parameters
Inputs
Common Mode Range
Sensitivity
–7
+7
0.3
Volts
Volts
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
3
SPECIFICATIONS
TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted.
MIN.
TYP.
MAX.
UNITS
CONDITIONS
V.11 RECEIVER (continued)
DC Parameters (cont.)
Input Current
Current w/100Ω Termination
Input Impedance
AC Parameters
Propagation Delay
tPHL
–3.25
4
3.25
60.75
mA
mA
kΩ
per Figure 20 and 22
per Figure 23 and 24
VCC = +5V for AC parameters
30
30
65
65
10
85
85
ns
ns
ns
per Figures 33 and 38; CL = 50pF
per Figures 33 and 38; CL = 50pF
per Figure 33; CL = 50pF
per Figure 33; CL = 50pF
fIN = 10MHz
tPLH
Differential Skew
Max.Transmission Rate
20
Mbps
V.35 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
Test Terminated Voltage
Offset
1.20
0.66
0.6
150
165
Volts
Volts
Volts
Ω
per Figure 16
per Figure 25
per Figure 25
per Figure 27; ZS = V2/V1 x 50Ω
per Figure 28
VCC = +5V for AC parameters
0.44
Source Impedance
Short-Circuit Impedance
AC Parameters
Outputs
50
135
Ω
Transition Time
Propagation Delay
tPHL
30
40
ns
per Figure 29; 10% to 90%
50
50
70
70
7
90
90
10
ns
ns
ns
per Figures 33 and 36; CL = 20pF
per Figures 33 and 36; CL = 20pF
per Figures 33 and 36; CL = 20pF
per Figure 33; CL = 20pF
tPLH
Differential Skew
Max.Transmission Rate
20
Mbps
fIN = 10MHz
V.35 RECEIVER
DC Parameters
Inputs
Sensitivity
80
mV
Ω
Source Impedance
Short-Circuit Impedance
AC Parameters
Propagation Delay
tPHL
90
135
110
165
per Figure 30; ZS = V2/V1 x 50Ω
per Figure 31
VCC = +5V for AC parameters
Ω
30
30
75
75
10
90
90
ns
ns
ns
per Figures 33 and 38; CL = 20pF
per Figures 33 and 38; CL = 20pF
per Figure 33; CL = 20pF
per Figure 33; CL = 20pF
fIN = 10MHz
tPLH
Differential Skew
Max.Transmission Rate
20
Mbps
TRANSCEIVER LEAKAGE CURRENTS
Driver Output 3-State Current
Rcvr Output 3-State Current
500
1
µA
µA
per Figure 32; Drivers disabled
DECX = 0000, 0.4V - VO - 2.4V
10
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
4
OTHER AC CHARACTERISTICS
TA = +25°C and VCC = +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
tPZL; Tri-state to Output LOW
0.70
0.40
0.20
0.40
5.0
2.0
2.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
tPZH; Tri-state to Output HIGH
tPLZ; Output LOW to Tri-state
tPHZ; Output HIGH to Tri-state
RS-423/V.10
tPZL; Tri-state to Output LOW
0.15
0.20
0.20
0.15
2.0
2.0
2.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
CL = 100pF, Fig. 34 & 40; S1
closed
CL = 100pF, Fig. 34 & 40; S2
closed
t
PZH; Tri-state to Output HIGH
PLZ; Output LOW to Tri-state
t
tPHZ; Output HIGH to Tri-state
RS-422/V.11
tPZL; Tri-state to Output LOW
2.80
0.10
0.10
0.10
10.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 34 & 37; S1
closed
CL = 100pF, Fig. 34 & 37; S2
closed
CL = 15pF, Fig. 34 & 37; S1
closed
CL = 15pF, Fig. 34 & 37; S2
closed
t
PZH; Tri-state to Output HIGH
PLZ; Output LOW to Tri-state
t
2.0
tPHZ; Output HIGH to Tri-state
2.0
V.35
tPZL; Tri-state to Output LOW
2.60
0.10
0.10
0.15
10.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 34 & 37; S1
closed
CL = 100pF, Fig. 34 & 37; S2
closed
CL = 15pF, Fig. 34 & 37; S1
closed
CL = 15pF, Fig. 34 & 37; S2
closed
tPZH; Tri-state to Output HIGH
tPLZ; Output LOW to Tri-state
2.0
tPHZ; Output HIGH to Tri-state
2.0
RECEIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE
RS-232/V.28
tPZL; Tri-state to Output LOW
tPZH; Tri-state to Output HIGH
tPLZ; Output LOW to Tri-state
tPHZ; Output HIGH to Tri-state
0.12
0.10
0.10
0.10
2.0
2.0
2.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 35 & 38; S1
closed
CL = 100pF, Fig. 35 & 38; S2
closed
CL = 100pF, Fig. 35 & 38; S1
closed
CL = 100pF, Fig. 35 & 38; S2
closed
RS-423/V.10
tPZL; Tri-state to Output LOW
0.10
0.10
0.10
0.10
2.0
2.0
2.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 35 & 38; S1
closed
CL = 100pF, Fig. 35 & 38; S2
closed
CL = 100pF, Fig. 35 & 38; S1
closed
CL = 100pF, Fig. 35 & 38; S2
closed
tPZH; Tri-state to Output HIGH
tPLZ; Output LOW to Tri-state
tPHZ; Output HIGH to Tri-state
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
5
OTHER AC CHARACTERISTICS (Continued)
TA = +25°C and VCC = +5.0V unless otherwise noted.
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
RS-422/V.11
tPZL; Tri-state to Output LOW
0.10
0.10
0.10
0.10
2.0
2.0
2.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 35 & 39; S1
closed
CL = 100pF, Fig. 35 & 39; S2
closed
CL = 15pF, Fig. 35 & 39; S1
closed
CL = 15pF, Fig. 35 & 39; S2
closed
tPZH; Tri-state to Output HIGH
tPLZ; Output LOW to Tri-state
tPHZ; Output HIGH to Tri-state
V.35
tPZL; Tri-state to Output LOW
0.10
0.10
0.10
0.10
2.0
2.0
2.0
2.0
µs
µs
µs
µs
CL = 100pF, Fig. 35 & 39; S1
closed
CL = 100pF, Fig. 35 & 39; S2
closed
CL = 15pF, Fig. 35 & 39; S1
closed
CL = 15pF, Fig. 35 & 39; S2
closed
tPZH; Tri-state to Output HIGH
t
PLZ; Output LOW to Tri-state
PHZ; Output HIGH to Tri-state
t
TRANSCEIVER TO TRANSCEIVER SKEW
V.28 Driver
(per Figures 33, 36, 38)
100
100
20
20
2
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
[ (tphl
)
Tx1 – (tphl
Tx1 – (tplh
)
)
]
]
Tx6,7
[ (tplh
[ (tphl
[ (tplh
[ (tphl
[ (tplh
[ (tphl
[ (tplh
[ (tphl
[ (tplh
[ (tphl
[ (tplh
[ (tphl
[ (tplh
)
Tx6,7
V.28 Receiver
V.11 Driver
)
Rx1 – (tphl
Rx1 – (tphl
)
]
]
Rx2,7
)
)
Rx2,7
)Tx1 – (tphl
)
)
]
Tx6,7
2
)Tx1 – (tplh
]
Tx6,7
V.11 Receiver
V.10 Driver
3
)
Rx1 – (tphl
Rx1 – (tphl
)
]
]
Rx2,7
3
)
)
Rx2,7
5
)Tx2 – (tphl
)
]
Tx3,4,5
5
)
)
)
Tx2 – (tplh
)
]
Tx3,4,5
V.10 Receiver
V.35 Driver
5
Rx2 – (tphl
Rx2 – (tphl
)
]
]
Rx3,4,5
5
)
Rx3,4,5
4
)Tx1 – (tphl
)
)
]
Tx6,7
4
)Tx1 – (tplh
]
Tx6,7
V.35 Receiver
6
6
ns
ns
[ (tphl
[ (tplh
)
– (tphl
)
)
]
]
Rx2,7
Rx2,7
)
Rx1 – (tphl
Rx1
POWER REQUIREMENTS
PARAMETER
MIN.
4.75
TYP.
MAX. UNITS
CONDITIONS
VCC
ICC
5.00
5.25
Volts
mA
(No Mode Selected)
(V.28/RS-232)
(V.11/X.21)
(EIA-530 & RS-449)
(V.35)
30
65
175
250
100
All ICC values are with VCC = +5V
mA fIN = 120kbps; Drivers active & loaded.
mA fIN = 10Mbps; Drivers active & loaded.
mA fIN = 10Mbps; Drivers active & loaded.
mA
V.35 @ fIN = 10Mbps, V.28 @ 20kbps;
Drivers active & loaded.
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
6
TEST CIRCUITS
A
A
VOC
VT
3kΩ
C
C
Figure 1. V.28 Driver Output Open Circuit Voltage
Figure 2. V.28 Driver Output Loaded Voltage
A
A
Isc
Oscilloscope
VT
7kΩ
C
C
Scope used for slew rate
measurement.
Figure 3. V.28 Driver Output Slew Rate
Figure 4. V.28 Driver Output Short-Circuit Current
V
= 0V
CC
A
A
Ix
Oscilloscope
3kΩ
2500pF
2V
C
C
Figure 6. V.28 Driver Output Rise/Fall Times
Figure 5. V.28 Driver Output Power-Off Impedance
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
7
A
A
Iia
15V
Voc
C
C
Figure 7. V.28 Receiver Input Impedance
Figure 8. V.28 Receiver Input Open Circuit Bias
A
A
Vt
VOC
450Ω
3.9kΩ
C
C
Figure 9. V.10 Driver Output Open-Circuit Voltage
Figure 10. V.10 Driver Output Test Terminated
Voltage
V
= 0V
CC
A
A
Ix
0.25V
Isc
C
C
Figure 11. V.10 Driver Output Short-Circuit Current
Figure 12. V.10 Driver Output Power-Off Current
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
8
A
A
Iia
10V
Oscilloscope
450Ω
C
C
Figure 13. V.10 Driver Output Transition Time
Figure 14. V.10 Receiver Input Current
V.10 RECEIVER
+3.25mA
A
V
V
OCA
VOC
3.9kΩ
OCB
–10V
–3V
B
+3V
+10V
Maximum Input Current
versus Voltage
C
–3.25mA
Figure 15. V.10 Receiver Input IV Graph
Figure 16. V.11 and V.35 Driver Output Open-
Circuit Voltage
A
Isa
A
50Ω
VT
50Ω
Isb
B
B
V
OS
C
C
Figure 17. V.11 Driver Output Test Terminated
Voltage
Figure 18. V.11 Driver Output Short-Circuit Current
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
9
V
= 0V
CC
A
Iia
A
Ixa
10V
0.25V
B
B
C
C
V
= 0V
CC
A
A
0.25V
10V
Ixb
Iib
B
B
C
C
Figure 20. V.11 Receiver Input Current
Figure 19. V.11 Driver Output Power-Off Current
V.11 RECEIVER
+3.25mA
A
50Ω
Oscilloscope
50Ω
–10V
–3V
B
VE
50Ω
+3V
+10V
C
Maximum Input Current
versus Voltage
–3.25mA
Figure 21. V.11 Driver Output Rise/Fall Time
Figure 22. V.11 Receiver Input IV Graph
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
10
V.11 RECEIVER
w/ Optional Cable Termination
(100Ω to 150Ω)
A
Iia
i [mA] = V [V] / 0.1
6V
i [mA] = (V [V] – 3) / 4.0
100Ω to
150Ω
–6V
–3V
+3V
+6V
B
i [mA] = (V [V] – 3) / 4.0
C
Maximum Input Current
versus Voltage
i [mA] = V [V] / 0.1
Figure 24. V.11 Receiver Input Graph w/
Termination
A
A
6V
50Ω
100Ω to
150Ω
VT
50Ω
Iib
B
VOS
B
C
C
Figure 23. V.11 Receiver Input Current w/
Termination
Figure 25. V.35 Driver Output Test Terminated Voltage
V1
A
A
50Ω
24kHz, 550mV
p-p
50Ω
Sine Wave
VT
V2
50Ω
VOS
B
B
C
C
Figure 26. V.35 Driver Output Offset Voltage
Figure 27. V.35 Driver Output Source Impedance
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
11
A
A
50Ω
50Ω
Oscilloscope
ISC
2V
B
B
50Ω
C
C
Figure 28. V.35 Driver Output Short-Circuit
Impedance
Figure 29. V.35 Driver Output Rise/Fall Time
A
V1
A
50Ω
24kHz, 550mV
Sine Wave
p-p
V2
Isc
B
B
2V
C
C
Figure 30. V.35 Receiver Input Source Impedance
Figure 31. V.35 Receiver Input Short-Circuit
Impedance
Any one of the three conditions for disabling the driver
0
0
0
0
VCC= 0V
DEC
DEC DEC DEC
1
0
3
2
C
C
L1
A
VCC
A
B
IZSC
15V
A
B
TIN
ROUT
L2
15pF
fIN (50% Duty Cycle, 2.5V
)
P-P
Logic“1”
B
Figure 33. Driver/Receiver Timing Test Circuit
Figure 32. Driver Output Leakage Current Test
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
12
1KΩ
Test Point
V
CC
Receiver
Output
S
S
V
CC
1
S
S
500Ω
1
Output
Under
Test
C
RL
1KΩ
C
L
2
2
Figure 35. Receiver Timing Test Load Circuit
Figure 34. Driver Timing Test Load Circuit
f ≥ 10MHz; tR ≤ 10 ns; tF ≤ 10ns
+3V
DRRIIVVEERR
INNPPUUTT
11..55VV
1.5V
0V
t
t
PHL
PLH
A
1/2V
1/2V
O
O
DRRIIVVEERR
OUUTTPPUUTT
V
O
B
+
t
t
DPLH
DPHL
DIIFFFFEERREENNTTIIAALL
OUUTTPPUUTT
V
V
O
0V
–
V –V
A
O
B
t
R
t
F
t
t t
| DPLH - DPHL |
SKEW =
Figure 36. Driver Propagation Delays
+3V
1.5V
1.5V
DECx or Tx_Enable
0V
tZL
tLZ
5V
2.3V
A, B
Output normally LOW
Output normally HIGH
0.5V
0.5V
VOL
VOH
A, B
0V
2.3V
tZH
tHZ
Figure 37. Driver Enable and Disable Times
f > 10MHz;t < 10ns;t < 10ns
R
F
+
–
V
0D2
0V
0V
A–B
INPUT
V
0D2
OUTPUT
V
OH
(VOH -VOL)/2
(VOH -VOL)/2
RECEIVER OUT
V
OL
t
t
PHL
PLH
tSKEW = │tPHL - tPLH
│
Figure 38. Receiver Propagation Delays
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
13
+3V
0V
1.5V
1.5V
DECx or RCVR Enable
RECEIVER OUT
t
ZL
t
LZ
5V
1.5V
Output normally LOW
Output normally HIGH
0.5V
0.5V
V
IL
V
IH
RECEIVER OUT
1.5V
0V
t
t
HZ
ZH
Figure 39. Receiver Enable and Disable Times
+3V
DECx or Tx_Enable
0V
1.5V
1.5V
t
LZ
t
ZL
0V
T
OUT
V
OL
Output LOW
0.5V
0.5V
+3V
1.5V
1.5V
t
DECx or Tx_Enable
0V
t
HZ
ZH
Output HIGH
0.5V
V
OH
T
OUT
0.5V
0V
Figure 40. V.28 (RS-232) and V.10 (RS-423) Driver Enable and Disable Times
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
14
Figure 41. Typical V.28 Driver Output Waveform
Figure 42. Typical V.10 Driver Output Waveform
Figure 43. Typical V.11 Driver Output Waveforms
Figure 44. Typical V.35 Driver Output Waveforms
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
15
Pin61—SD(a)—AnalogOut —Senddata,
inverted; sourced from TxD.
PINOUT
Pin63— TT(a)— AnalogOut— Terminal
Timing, inverted; sourced from TxC
Pin 65 — TT(b) — Analog Out — Terminal
Timing, non–inverted; sourced from TxC.
RxD
SDEN
TREN
1
60 GND
59 SD(b)
58 TR(a)
57 GND
56 TR(b)
2
3
4
RSEN
LLEN
5
Pin 70 — RD(a) — Receive Data, analog
input; inverted; source for RxD.
TTEN
6
55 V
CC
SCTEN
LATCH
7
54 RS(a)
53 GND
52 RS(b)
51 LL(a)
50 GND
49 LL(b)
8
9
DEC
3
DEC 10
2
SP506
Pin 71 — RD(b) — Receive Data; analog
input; non-inverted; source for RxD.
DEC 11
1
DEC 12
0
DTR 13
TxD 14
TxC 15
RTS 16
RL 17
48 V
CC
47 RL(a)
46 GND
45 RL(b)
44 ST(b)
43 GND
42 ST(a)
Pin 76 — SCT(a) — Serial Clock Transmit;
analog input, inverted; source for SCT.
RLEN 18
DCD 19
RxC 20
41
V
CC
Pin 77 — SCT(b) — Serial Clock Transmit:
analog input, non–inverted; source for SCT
Pin79—SCT—SerialClockTransmit;TTL
output; sources from SCT(a) and SCT(b)
inputs.
PINASSIGNMENTS
CLOCKANDDATAGROUP
CONTROLLINEGROUP
Pin13—DTR—DataTerminalReady;TTL
input; source for TR(a) and TR(b) outputs.
Pin 1 — RxD — Receive Data; TTL output,
sourced from RD(a) and RD(b) inputs.
Pin16—RTS—ReadyToSend;TTLinput;
source for RS(a) and RS(b) outputs.
Pin 14 — TxD — TTL input ; transmit data
source for SD(a) and SD(b) outputs.
Pin 17 — RL — Remote Loopback; TTL
input; source for RL(a) and RL(b) outputs.
Pin 15 — TxC — Transmit Clock; TTL input
for TT driver outputs.
Pin 19 — DCD— Data Carrier Detect; TTL
output; sourced from RR(a) and RR(b) in-
puts.
Pin20— RxC —ReceiveClock;TTLoutput
sourced from RT(a) and RT(b) inputs.
Pin 22 — ST — Send Timing; TTL input;
source for ST(a) and ST(b) outputs.
Pin 21 — RI — Ring In; TTL output; sourced
from IC(a) and IC(b) inputs.
Pin 37 — RT(a) — Receive Timing; analog
input, inverted; source for RxC.
Pin 24 — LL — Local Loopback; TTL input;
source for LL(a) and LL(b) outputs.
Pin 38 — RT(b) — Receive Timing; analog
input, non-inverted; source for RxC.
Pin 35 — RR(a)— Receiver Ready; analog
input, inverted; source for DCD.
Pin 42 — ST(a) — Send Timing; analog
output, inverted; sourced from ST.
Pin 36 — RR(b)— Receiver Ready; analog
input, non-inverted; source for DCD.
Pin 44 — ST(b) — Send Timing; analog
output, non-inverted; sourced from ST.
Pin 39 — IC(a)— Incoming Call; analog
input, inverted; source for RI.
Pin59—SD(b) —AnalogOut—Senddata,
non-inverted; sourced from TxD.
Pin 40 — IC(b)— Incoming Call; analog
input,non-inverted; source for RI.
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
16
Pin45—RL(b)—RemoteLoopback;analog
output, non-inverted; sourced from RL.
Pin 7 — SCTEN — Enables SCT receiver;
active high; TTL input.
Pin 47 — RL(a) — Remote Loopback;
analog output inverted; sourced from RL.
Pin8—LATCH—Latchcontrolfordecoder
bits (pins 9-12), active low. Logic high input
will make decoder transparent.
Pin 49— LL(b) — Local Loopback; analog
output, non-inverted; sourced from LL.
Pins 12–9 — DEC0 – DEC3 — Transmitter
and receiver decode register; configures
transmitterandreceivermodes;TTLinputs.
Pin 51 — LL(a) — Local Loopback; analog
output, inverted; sourced from LL.
Pin18—RLEN—EnablesRLdriver;active
low; TTL input.
Pin 52 — RS(b) — Ready To Send; analog
output, non-inverted; sourced from RTS.
Pin23—STEN—EnablesSTdriver;active
low; TTL input.
Pin 54 — RS(a) — Ready To Send; analog
output, inverted; sourced from RTS.
Pin 56 — TR(b) — Terminal Ready; analog
output, non-inverted; sourced from DTR.
POWER SUPPLIES
Pins 25, 33, 41, 48, 55, 62, 73, 74 — VCC
+5V input.
—
Pin 58 — TR(a) — Terminal Ready; analog
output, inverted; sourced from DTR.
Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72,
75 — GND — Ground.
Pin 66 — CS(a)— Clear To Send; analog
input, inverted; source for CTS.
Pin27—VDD +10VChargePumpCapacitor
— Connects from VDD to VCC. Suggested
capacitor size is 22µF, 16V.
Pin 67 — CS(b)— Clear To Send; analog
input, non-inverted; source for CTS.
Pin68— DM(a)—DataMode;analoginput,
inverted; source for DSR.
Pin32—VSS –10VChargePumpCapacitor
—ConnectsfromgroundtoVSS. Suggested
capacitor size is 22µF, 16V.
Pin69—DM(b)—DataMode;analoginput,
non-inverted; source for DSR
+
–
Pins 26 and 30 — C1 and C1 — Charge
+
–
PumpCapacitor —ConnectsfromC1 toC1
Pin 78 — DSR— Data Set Ready; TTL
output; sourced from DM(a), DM(b) inputs.
.
Suggested capacitor size is 22µF, 16V.
Pin80— CTS—ClearToSend;TTLoutput;
sourced from CS(a) and CS(b) inputs.
+
–
Pins 28 and 31 — C2 and C2 — Charge
+
–
PumpCapacitor —ConnectsfromC2 toC2
.
Suggested capacitor size is 22µF, 16V.
CONTROLREGISTERS
Pins 2 — SDEN — Enables TxD driver,
active low; TTL input.
Pins 3 — TREN — Enables DTR driver,
active low; TTL input.
Pins 4 — RSEN — Enables RTS driver,
active low; TTL input.
Pins 5 — LLEN — Enables LL driver, active
low; TTL input.
Pin 6 — TTEN — Enables TT driver, active
low; TTL input.
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
17
SP506 Driver Mode Selection
RS-422
Pin Label
Mode:
RS-232
V.35
RS-422
RS-449
EIA-530
EIA-530A
V.36
w/Term.
DEC3 – DEC0
SD(a)
0000
0010
1110
0100
1100
1101
1111
0110
0101
tri-state
tri-state
tri-state
tri-state
tri-state
tri-state
tri-state
tri-state
tri-state
tri-state
tri-state
V.35–
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.28
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11–
V.11+
SD(b)
tri-state
V.35+
V.28
V.11+
V.10
TR(a)
V.28
V.10
TR(b)
tri-state
tri-state
tri-state
tri-state
RS(a)
V.28
V.11–
V.11+
V.11–
V.11+
V.28
V.10
RS(b)
tri-state
tri-state
tri-state
V.11+
V.11–
V.11+
V.28
V.10
RL(a)
RL(b)
V.28
V.10
tri-state
tri-state
tri-state
tri-state
LL(a)
LL(b)
ST(a)
ST(b)
TT(a)
TT(b)
V.10
V.10
V.28
tri-state
V.35–
V.35+
V.35–
V.35+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.10
V.28
V.10
tri-state
tri-state
tri-state
tri-state
tri-state
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.28
tri-state
V.28
tri-state
tri-state
tri-state
tri-state
Table 1. SP506 Driver Decoder Table
SP506 Receiver Mode Selection
V.36
Pin Label
Mode:
RS-232
V.35
RS-422
RS-422
RS-449
EIA-530
EIA-530A
w/Term.
DEC3 – DEC0
RD(a)
RD(b)
RT(a)
0000
0010
1110
0100
0101
1100
1101
1111
V.11–
V.11+
0110
V.11–
V.35–
V.11–
V.11+
V.11–
V.11–
V.11+
V.11–
V.11+
V.28
V.11–
>10kΩ to GND
>10kΩ to GND
V.11+
V.11+
V.11–
V.11+
>10kΩ to GND
V.35+
V.35–
V.11+
V.11–
V.11+
>10kΩ to GND
>10kΩ to GND
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.28
V.11–
V.11+
RT(b)
>10kΩ to GND
V.35+
V.28
CS(a)
>10kΩ to GND
>10kΩ to GND
V.11–
V.10
V.28
V.11–
V.11–
V.11–
CS(b)
>10kΩ to GND >10kΩ to GND
>10kΩ to GND
V.10
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
V.11–
V.11+
DM(a)
DM(b)
RR(a)
RR(b)
IC(a)
>10kΩ to GND
>10kΩ to GND
>10kΩ to GND
V.10
V.28
>10kΩ to GND >10kΩ to GND
V.28
>10kΩ to GND
>10kΩ to GND
V.11+
V.11–
V.11+
V.11–
V.11+
V.10
V.10
>10kΩ to GND
V.10
V.28
>10kΩ to GND
V.28
V.28
>10kΩ to GND
V.28
V.11–
>10kΩ to GND
>10kΩ to GND
V.11+
V.11+
V.11+
V.11–
V.10
V.10
IC(b)
>10kΩ to GND
>10kΩ to GND
V.11–
>10kΩ to GND >10kΩ to GND
V.11+
>10kΩ to GND
V.11–
>10kΩ to GND
V.11–
>10kΩ to GND
V.11–
SCT(a)
SCT(b)
V.11–
V.11+
>10kΩ to GND
>10kΩ to GND
V.28
V.35–
V.35+
>10kΩ to GND
V.11+
V.11+
V.11+
V.11+
Table 2. SP506 Receiver Decoder Table
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
18
1N5819
25
22µF
22µF
(SEE PINOUT FOR VCC PINS)
22µF
+5V
27 26
V
30 28
C1+ C1- C2+
31
C2-
10µF
V
CC
DD
Charge Pump
22µF
32
V
SS
B
A
14 TxD
RD(a) 70
RxD 1
61 SD(a)
59 SD(b)
RD(b) 71
RT(a) 37
2
SDEN
13 DTR
58 TR(a)
56 TR(b)
RxC 20
RT(b) 38
CS(a) 66
3
TREN
16 RTS
CTS 80
54 RS(a)
52 RS(b)
CS(b) 67
4
RSEN
DM(a) 68
17 RL
DSR 78
47 RL(a)
45 RL(b)
18 RLEN
24 LL
DM (b) 69
RR(a) 35
DCD 19
51 LL(a)
49 LL(b)
RR(b) 36
IC(a) 39
5
LLEN
RI 21
22 ST
42 ST(a)
44 ST(b)
23 STEN
15 TxC
IC(b) 40
SCT(a) 76
SCT 79
SCTEN
7
63 TT(a)
65 TT(b)
SCT(b) 77
RS-422 Mode
Input Word
6
TTEN
9
1
0
10
11
12
1
0
A— Receiver Tr-state circuitry,
V.11,& V.35 termination
resistor circuitry (RxD,
RxC & SC.T)
8
SP506
LATCH
B — Driver Tr-State circuitry &
V.35 termination circuitry
(TxD, TxC & ST).
(SEE PINOUT ASSIGNMENTS FOR GROUND PINS)
Figure 45. SP506 Typical Operating Circuit
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
19
PACKAGE: 80 PIN LQFP
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
20
ORDERING INFORMATION
Model
Temperature Range
Package Types
SP506CM-L ....................................................................... 0°C to +70°C .............................................................................................. 80–pin LQFP
Please consult the factory for pricing and availability on a Tape-On-Reel option.
REVISION HISTORY
DATE
1/27/04
8/12/08
REVISION
DESCRIPTION
A
Implemented tracking revision.
1.0.0
SP506 is no longer available in MQFP package per PCN 07-1102-
06a. In addition, SP506 is now only available in a Pb-Free, RoHS
compliant package. MQFP package drawing has been replaced with
the LQFP package drawing. Ordering information has been updated.
Changed to Exar datasheet format and revision to 1.0.0.
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to
improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any
circuits described herein, conveys no license under any patent or other right, and makes no representation that
the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration
purposes and may vary depending upon a user’s specific application. While the information in this publication
has been carefully checked; no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the
failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to
significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless
EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has
been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately
protected under the circumstances.
Copyright 2008 EXAR Corporation
Datasheet August 2008
Send your technical inquiry with details to: uarttechsupport@exar.com
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
SP506_100_081208
SP506Multi–ModeSerialTransceiver
© Copyright 2008 Exar Corporation
21
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