sp3508 Exar Corporation, sp3508 Datasheet
sp3508
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sp3508 Summary of contents
Page 1
... 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 ...
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... SP3508 Enhanced WAN Multi–Mode Serial Transceiver 2 36.9 °C/W ................................................................................................................. JA 6.5 °C/W .................................................................................................................... JC STORAGE CONSIDERATIONS ELECTRICAL SPECIFICATIONS – ...
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... SP3508 Enhanced WAN Multi–Mode Serial Transceiver 3 ELECTRICAL SPECIFICATIONS ...
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... A 5 ♦ ♦ ♦ ♦ ♦ 4 kΩ SP3508 Enhanced WAN Multi–Mode Serial Transceiver ...
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... µ µ A SP3508 Enhanced WAN Multi–Mode Serial Transceiver 5 ELECTRICAL SPECIFICATIONS ...
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... A ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ SP3508 Enhanced WAN Multi–Mode Serial Transceiver 6 ELECTRICAL SPECIFICATIONS ...
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... SP3508 Enhanced WAN Multi–Mode Serial Transceiver 7 CONDITIONS C = 100pF, Fig. 33 & 39; S closed 100pF, Fig. 33 & 39; S closed 100pF, Fig. 33 & 39; S closed 100pF, Fig. 33 & 39; S closed 100pF, Fig. 33 & 39; S ...
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... SP3508 Enhanced WAN Multi–Mode Serial Transceiver 8 CONDITIONS C = 100pF, Fig. 34 & 38; S µs L closed C = 100pF, Fig. 34 & 38; S µs L closed C = 15pF, Fig. 34 & 38; S µs L closed C = 15pF, Fig. 34 & 38; S µs L closed C = 100pF, Fig. 34 & ...
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... RDEN 10 RTEN 11 TXCEN 12 CSEN13 DMEN 14 RRTEN 15 ICEN 16 TMEN D_LATCH 21 TERM_OFF 22 VCC 23 C3P 24 GND 25 Date: 10/29/04 SP3508 SP3508 Enhanced WAN Multi–Mode Serial Transceiver 9 PINOUT 75 GND 74 C1P 73 VCC 72 C2P 71 GND 70 C1N 69 C2N ® 68 VSS1 67 RL(a) 66 VCC 65 LL(a) 64 TM( RRT(a) 61 RRT(b) ...
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... SP3508 Enhanced WAN Multi–Mode Serial Transceiver 10 Pin Name Description RT(B) RxC Non-Inverting Input RT(A) RxC Inverting Input TxC(B) TxC Non-Inverting Input GND Signal Ground TxC(A) TxC Inverting Input CS(B) CTS Non-Inverting Input CS(A) CTS Inverting Input ...
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... SP3508 Enhanced WAN Multi–Mode Serial Transceiver ...
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... V OC Figure 2. V.28 Driver Output Loaded Voltage V Oscilloscope T Scope used for slew rate measurement. Figure 4. V.28 Driver Output Short-Circuit Current I x ±2V Figure 6. V.28 Driver Output Rise/Fall Times SP3508 Enhanced WAN Multi–Mode Serial Transceiver 12 TEST CIRCUITS A V 3kΩ 3kΩ ...
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... Figure 11. V.10 Driver Output Short-Circuit Current Date: 10/29/ ±15V Figure 8. V.28 Receiver Input Open Circuit Bias V OC Figure 10. V.10 Driver Output Test Terminated Voltage I sc Figure 12. V.10 Driver Output Power-Off Current SP3508 Enhanced WAN Multi–Mode Serial Transceiver 450Ω ...
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... Figure 17. V.11 Driver Output Test Terminated Voltage Date: 10/29/04 Oscilloscope Figure 14. V.10 Receiver Input Current +3.25mA +10V Figure 16. V.11 Driver Output Open-Circuit Voltage 50Ω 50Ω Figure 18. V.11 Driver Output Short-Circuit Current SP3508 Enhanced WAN Multi–Mode Serial Transceiver ±10V OCA 3.9kΩ ...
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... Figure 21. V.11 Driver Output Rise/Fall Time Date: 10/29/ ±0.25V ±0.25V xb Figure 20. V.11 Receiver Input Current 50Ω 50Ω -10V V 50Ω E -3.25mA Figure 22. V.11 Receiver Input IV Graph SP3508 Enhanced WAN Multi–Mode Serial Transceiver ±10V ±10V V.11 RECEIVER +3.25mA ...
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... Figure 24. V.11 Receiver Input Graph with Termination ±6V Figure 25. V.35 Driver Output Test Terminated Voltage V 1 50Ω 24kHz, 550mV p-p Sine Wave Figure 27. V.35 Driver Output Short-Circuit Impedance SP3508 Enhanced WAN Multi–Mode Serial Transceiver 16 V.11 RECEIVER w/ Optional Cable Termination i [mA [V] / 0.1 (100Ω to 150Ω) -6V -3V +3V +6V i [mA [ ...
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... Any one of the three conditions for disabling the driver Logic “1” ±2V Figure 31. Driver Output Leakage Current Test (50% Duty Cycle, 2.5V ) P-P SP3508 Enhanced WAN Multi–Mode Serial Transceiver 50Ω 24kHz, 550mV Sine Wave ...
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... 2.3V Output normally LOW Output normally HIGH 2. > 10MHz; t < 5ns INPUT OUTPUT ( )/ SP3508 Enhanced WAN Multi–Mode Serial Transceiver 18 1KΩ Test Point 1KΩ 1. 0.5V 0. < ...
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... Output normally LOW Output normally HIGH 1. 60kHz; t < 10ns; t < 10ns Output LOW f = 60kHz; t < 10ns; t < 10ns R F 1.5V t Output HIGH ZH SP3508 Enhanced WAN Multi–Mode Serial Transceiver 19 1. 0. 0. 0.5V OH © Copyright 2004 Sipex Corporation ...
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... Figure 40. Typical V.10 Driver Output Waveform. Figure 42. Typical V.28 Driver Output Waveform. Date: 10/29/04 Figure 41. Typical V.11 Driver Output Waveform. Figure 43. Typical V.35 Driver Output Waveform. SP3508 Enhanced WAN Multi–Mode Serial Transceiver 20 © Copyright 2004 Sipex Corporation ...
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... D0 19 SP3508 D-LATCH 22 TERM-OFF 30 LOOPBACK GND SP3508 Enhanced WAN Multi–Mode Serial Transceiver C2- C3+ C3 1µF C3 SS1 C 1µF VSS1 27 V SS2 C VSS2 1µF 31 TxD 97 SD(a) 99 SD(b) 2 SDEN 32 ...
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... The V.28 (RS-232) drivers output single-ended signals with a minimum of +5V (with 3kΩ & 2500pF loading), and can operate over 120kbps. Since the SP3508 uses a charge pump to gener- ate the RS-232 output rails, the driver outputs will never exceed +10V. The V.28 driver archi- tecture is similar to Sipex's standard line of RS- 232 transceivers ...
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... The fourth type of drivers are V.35 differential drivers. There are only three available on the SP3508 for data and clock (TxD, TxCE, and TxC in DCE mode). These drivers are current sources that drive loop current through a differential pair resulting in a 550mV differential voltage at the receiver ...
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... Vss1). SP3508 also in- cludes an inverter block that inverts Vcc to -Vcc (Vss2). There is a free-running oscillator that controls the four phases of the voltage shifting. ...
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... C 2 – – – –3V C VSS1 , the V storage capacitor. This voltage is regulated to +5.5V. At VDD no-load condition V+ and V- will CC SP3508 Enhanced WAN Multi–Mode Serial Transceiver 25 FEATURES storage capacitor SS1 VSS1 VDD – V Storage Capacitor Storage Capacitor SS VSS1 – ...
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... SS2 SS2 SP3508 Enhanced WAN Multi–Mode Serial Transceiver 26 FEATURES V Storage Capacitor DD V Storage Capacitor SS1 . The Charge stored VSS2 is connected to V and the positive SS2 + C VSS2 V SS2 © Copyright 2004 Sipex Corporation ...
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... Date: 10/14/04 SP3508 Enhanced WAN Multi–Mode Serial Transceiver 27 © Copyright 2004 Sipex Corporation ...
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... Date: 10/14/04 SP3508 Enhanced WAN Multi–Mode Serial Transceiver 28 © Copyright 2004 Sipex Corporation ...
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... There are internal pull-up devices on D0, D1 and D2, which allow the device SHUTDOWN mode ("111") upon power up. However, if the device is powered-up with the D_LATCH at a logic HIGH, the decoder state of the SP3508 will be undefined. CTR1/CTR2 EUROPEAN COMPLIANCY As with all of Sipex's previous multi-protocol ...
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... RxD TxCE RxC ST TxC RTS CTS DTR DSR DCD_DCE DCD_DTE Figure 50. Loopback Path Date: 10/29/ SP3508 Enhanced WAN Multi–Mode Serial Transceiver 30 97 SD(a) 99 SD(b) 50 RD(a) 49 RD(b) 93 TT(a) 95 TT(b) 52 RT(a) 51 RT(b) 89 ST(a) 91 ST(b) 55 TxC(a) 53 TxC(b) 81 RS(a) 83 RS(b) 57 CS(a) 56 ...
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... DCE/DTE Figure 51. SP3508 Typical Operating Configuration to Serial Port Connector with DCE/DTE programmability Date: 10/29/ VDD 1µF 1µF 1µ C1+ C1- C2+ C2- V C3+ DD 1µ C3 ...
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... JEDEC MS-026 (BED) Variation NOM MAX 1.60 0.05 0.15 1.35 1.40 1.45 0.17 0.22 0.27 16.00 BSC 14.00 BSC 0.50 BSC 16.00 BSC 14.00 BSC 100 SP3508 Enhanced WAN Multi–Mode Serial Transceiver 32 PACKAGE: 100 PIN LQFP 0.2 RAD MAX. c 0.08 RAD MIN. 11°-13° 0°MIN 11°-13° Seating Plane COMMON DIMENSIONS SYMBL MIN NOM MAX c 0.09 0.20 L ...
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... Part Number SP3508CF ............................................. 0°C to +70°C ................................................. 100–pin JEDEC LQFP SP3508EF ......................................... -40°C to +85°C ................................................. 100–pin JEDEC LQFP Available in lead free packaging. To order add “-L” suffix to part number. Example: SP3508EF = standard; SP3508EF-L = lead free DATE REVISION 1/12/04 A 2/27/04 B 3/31/04 C 6/3/04 D 10/12/04 E 10/29/04 F Corporation ...