|
|
PDF SP3508 Data sheet ( Hoja de datos )
| Número de pieza | SP3508 | |
| Descripción | Rugged 3.3V / 20Mbps / 8 Channel Multiprotocol Transceiver with Programmable DCE/DTE and Termination Resistors | |
| Fabricantes | Sipex | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SP3508 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
®
PRELIMINARY
SP3508
Rugged 3.3V, 20Mbps, 8 Channel Multiprotocol Transceiver
with Programmable DCE/DTE and Termination Resistors
FEATURES
■ Fast 20Mbps Differential Transmission Rates
Now Available in Lead Free Packaging
■ Internal Transceiver Termination Resistors
for V.11 & V.35
Refer to page 9 for pinout
■ 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 (V.35 & V.28)
■ Protocols are Software Selectable with 3-Bit Word
■ Eight (8) Drivers and Eight (8) Receivers
■ Termination Network Disable Option
APPLICATIONS
■ Internal Line or Digital Loopback for Diagnostic Testing ■ Router
■ Adheres to NET1/NET2 and TBR-2 Compliancy
■ Frame Relay
Requirements
■ CSU
■ Easy Flow-Through Pinout
■ DSU
■ +3.3V Only Operation
■ PBX
■ Individual Driver and Receiver Enable/Disable Controls ■ Secure Communication Terminals
■ Operates in either DTE or DCE Mode
DESCRIPTION
The SP3508 is a monolithic device that supports eight (8) popular serial interface standards
for Wide Area Network (WAN) connectivity. The SP3508 is fabricated using a low power
BiCMOS process technology, and incorporates a Sipex regulated charge pump allowing
+3.3V only operation. Sipex's patented charge pump provides a regulated output of +5.5V,
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 SP3508 requires no additional external components for compliant operation for all
of the eight (8) modes of operation other than six capacitors used for the internal charge pump.
All necessary termination is integrated within the SP3508 and is switchable when V.35 drivers
and V.35 receivers, or when V.11 receivers are used. The SP3508 provides the controls and
transceiver availability for operating as either a DTE or DCE.
Additional features with the SP3508 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 SP3508 also includes a latch enable pin
with the driver and receiver address decoder. The internal V.11 or V.35 termination can be
switched off using a control pin (TERM_OFF) for monitoring applications. All eight (8) drivers and
receivers in the SP3508 include separate enable pins for added convenience. The SP3508 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: 06/14/04
SP3508 Enhanced WAN Multi–Mode Serial Transceiver
1
© Copyright 2004 Sipex Corporation
1 page  
ELECTRICAL SPECIFICATIONS
TA = 0 to 70°C and VCC = 3.3V ± 5% unless otherwise noted. The ♦ denotes the specifications which apply over the full operating
temperature range (-40°C to +85°C), unless otherwise specified.
PARAMETER
MIN. TYP. MAX.
UNITS
CONDITIONS
V.35 DRIVER DC Parameters (Outputs)
Open Circuit Voltage
±1.20
V per Figure 16
Test Terminated Voltage
±0.44
±0.66
V per Figure 25
Offset
±0.6 ♦
V per Figure 25
Output Overshoot
Source Impedance
Short-Circuit Impedance
-0.2V-
ST
50
135
+0.2-
VST
150
♦
♦
165
V
per Figure 25; VST = Steady state
value
Ω per Figure 26; ZS = V2/V1 x 50
Ω per Figure 27
V.35 DRIVER AC Parameters (Outputs)
Transition Time
20 ♦
VCC = +3.3V for AC parameters
ns
Propagation Delay: tPHL
Propagation Delay: tPLH
Differential Skew
Max.Transmission Rate
30 60 ♦ ns per Figures 32 and 35; CL = 20pF
30 60 ♦ ns per Figures 32 and 35; CL = 20pF
5♦
ns per Figures 32 and 35; CL = 20pF
20 ♦ Mbps
V.35 RECEIVER DC Parameters (Inputs)
Sensitivity
±50 ±200 ♦ mV
Source Impedance
Short-Circuit Impedance
90
135
110 Ω per Figure 29; ZS = V2/V1 x 50Ω
165 Ω per Figure 30
V.35 RECEIVER AC Parameters
Propagation Delay: tPHL
Propagation Delay: tPLH
Skew
30 60
30 60
5 10
Max.Transmission Rate
20
ns
ns
ns
Mbps
VCC = +5V for AC parameters
per Figures 32 and 37; CL = 20pF
per Figures 32 and 37; CL = 20pF
per Figures 32; CL = 20pF
TRANSCEIVER LEAKAGE CURRENTS
Driver Output 3-State Current
200 µA per Figure 31; Drivers disabled
Receiver Output 3-State
Current
1 10
µA DX = 111
Date: 06/14/04
SP3508 Enhanced WAN Multi–Mode Serial Transceiver
5
© Copyright 2004 Sipex Corporation
5 Page 
SP3508 Driver Table
Driver Output
Pin
V.35 Mode
EIA-530
Mode
MODE (D0, D1, D2)
001
T1OUT(a)
V.35
T1OUT(b)
V.35
T2OUT(a)
V.35
T2OUT(b)
V.35
T3OUT(a)
V.35
T3OUT(b)
V.35
T4OUT(a)
V.28
T4OUT(b)
High-Z
T5OUT(a)
V.28
T5OUT(b)
High-Z
T6OUT(a)
V.28
T6OUT(b)
High-Z
T7OUT(a)
V.28
T8OUT(a)
V.28
Table 1. Driver Mode Selection
010
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.10
V.10
RS-232
Mode
(V.28)
011
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
V.28
EIA-530A
Mode
100
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.10
High-Z
V.11
V.11
V.10
V.10
RS-449
Mode
(V.36)
101
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.10
V.10
X.21 Mode
(V.11)
Shutdown
Suggested
Signal
110
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
High-Z
High-Z
111
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
TxD(a)
TxD(b)
TxCE(a)
TxCE(b)
TxC_DCE(a)
TxC_DCE(b)
RTS(a)
RTS(b)
DTR(a)
DTR(b)
DCD_DCE(a)
DCD_DCE(b)
RL
LL
SP3508 Receiver Table
Receiver Input
Pin
V.35 Mode
EIA-530
Mode
MODE (D0, D1, D2)
001
010
R1IN(a)
R1IN(b)
R2IN(a)
R2IN(b)
R3IN(a)
R3IN(b)
R4IN(a)
R4IN(b)
R5IN(a)
R5IN(b)
R6IN(a)
R6IN(b)
R7IN(a)
R8IN(a)
V.35
V.35
V.35
V.35
V.35
V.35
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
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.10
V.10
Table 2. Receiver Mode Selection
RS-232
Mode
(V.28)
011
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
V.28
EIA-530A
Mode
100
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.10
High-Z
V.11
V.11
V.10
V.10
RS-449
Mode
(V.36)
101
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.10
V.10
X.21 Mode
(V.11)
Shutdown
Suggested
Signal
110
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
High-Z
High-Z
111
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
RxD(a)
RxD(b)
RxC(a)
RxC(b)
TxC_DTE(a)
TxC_DTE(b)
CTS(a)
CTS(b)
DSR(a)
DSR(b)
DCD_DTE(a)
DCD_DTE(b)
RI
TM
Date: 06/14/04
SP3508 Enhanced WAN Multi–Mode Serial Transceiver
11
© Copyright 2004 Sipex Corporation
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SP3508.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SP3508 | Rugged 3.3V / 20Mbps / 8 Channel Multiprotocol Transceiver with Programmable DCE/DTE and Termination Resistors | Sipex |
| SP3508 | 8 Channel Multiprotocol Transceiver |  Exar |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |