mxl1544 Maxim Integrated Products, Inc., mxl1544 Datasheet
mxl1544
Available stocks
Related parts for mxl1544
mxl1544 Summary of contents
Page 1
... MXL1543 carries the high-speed clock and data signals. Typically, the MXL1543 is terminated using the MXL1344A. The MAX3175 is identical to the MXL1544 except for the addition of a 10µs (typ) glitch rejection circuit at the receiver inputs. The MXL1544/ MAX3175 are available in 28-pin SSOP packages. ...
Page 2
Multiprotocol, Software-Selectable Control Transceivers ABSOLUTE MAXIMUM RATINGS All Voltages to GND Unless Otherwise Noted Supply Voltages V .......................................................................-0. ....................................................................-0.3V to +7. ........................................................................+0. (Note 1)............................................................13V DD EE Logic ...
Page 3
... -10V ≤ V ≤ 10V (Figures MXL1544 t , PHL (Figures MAX3175 PLH MXL1544 - PHL (Figures MAX3175 PLH = +25°C.) (Note 2) A MIN TYP MAX UNITS 3 4.5 V 0.3 0 µA 70 µ ± ...
Page 4
... L TH -10V ≤ V ≤ 10V A -10V ≤ V ≤ 10V IN A (Figures MXL1544 MAX3175 ( MXL1544 MAX3175 MXL1544 - ( MAX3175 Open circuit (Figure 3kΩ (Figure GND O -0.25V ≤ V ≤ +0.25V, power-off or OUT no-cable mode R = 3kΩ ...
Page 5
... Multiprotocol, Software-Selectable ELECTRICAL CHARACTERISTICS (continued +5V +6.8V -5.6V PARAMETER SYMBOL t Receiver Input to Output t Note 2: MXL1544/MAX3175 are designed to operate with +25°C, unless otherwise noted.) A V.11 MODE SUPPLY CURRENT (I vs. DATA RATE 120 FULL LOAD 50Ω 100 80 DCE MODE INVERT = LOAD 1.95kΩ ...
Page 6
Multiprotocol, Software-Selectable Control Transceivers (T = +25°C, unless otherwise noted.) A V.28 MODE SUPPLY CURRENT (I vs. DATA RATE 25 DCE MODE INVERT = Ω, FULL LOAD 2500pF L 10 ...
Page 7
... INPUT VOLTAGE (V) V.10 TRANSMITTER RISE AND FALL TIME vs. LOAD CAPACITANCE 3.5 RISE 3.0 2.5 FALL 2.0 1.5 1.0 0 500 1000 1500 CAPACITANCE (pF) MXL1544 LOOPBACK SCOPE PHOTO V.28 MODE (LOADED OUT OUT 4µs/div _______________________________________________________________________________________ Control Transceivers Typical Operating Characteristics (continued) V.28 SLEW RATE vs. LOAD CAPACITANCE ...
Page 8
Multiprotocol, Software-Selectable Control Transceivers PIN NAME 1 V +5V Supply Voltage (±5%). Bypass with a 1µF capacitor to ground Positive Supply Generated by MXL1543. Bypass with a 1µF capacitor to ground T1IN Transmitter 1 ...
Page 9
... MXL1344A, form a complete software-selectable DTE or DCE interface port that supports the V.28 (RS-232), V.10/V.11 (RS-449, V.36, EIA-530, EIA-530A, X.21, RS- 423), and V.35 protocols. The MXL1544 or MAX3175 usually carries the control signals. The MXL1543 car- ries the high-speed clock and data signals, and the MXL1344A provides termination for the clock and data signals. The MXL1544/MAX3175 feature a 0.5µ ...
Page 10
Multiprotocol, Software-Selectable Control Transceivers PLH V 0 50% B Figure 5. V.11, V.35 Driver Propagation Delays V 0D2 B 0D2 t PLH ...
Page 11
... C to C’ in Figure 13 ±7V. The MXL1544/MAX3175 V.11 mode receiver has a dif- ferential threshold between -200mV and +200mV. To ensure that the receiver has proper fail-safe operation; see the Fail-Safe section. To aid in rejecting system noise, the MXL1544/MAX3175 V ...
Page 12
... CABLE WIRING FOR CABLE WIRING FOR D4 MODE SELECTION DTE/DCE SELECTION PIN 18 PIN 21 MODE MXL1544 M0 PIN 7 PIN 7 V.35 MAX3175 M1 RS-449. V.36 N.C. PIN 7 M2 RS-232 PIN 7 N.C. 15 DCE/DTE INVERT 12 13 MXL1344A 21 LATCH V DTE DCE CC 2 TXD A ...
Page 13
... MAX3175 features 10µs of receiver input glitch rejection. The glitch-rejection circuitry blocks the reception of high-frequency noise (t while receiving a low-frequency signal (t ing glitch-free operation in unterminated systems 60kbps. The MXL1544 does not have this feature and can be operated at frequencies greater than 60kbps if properly terminated. LOAD RECEIVER ...
Page 14
... DCE or DTE controller-selectable interface. The DCE/DTE and INVERT inputs switch the port’s mode of operation (Table 1). The MXL1543 and MXL1544/MAX3175 can be connect- ed for either DTE or DCE operation in one of two ways: a dedicated DTE or DCE port with an appropriate gen- der connector or a port with a connector that can be ...
Page 15
Multiprotocol, Software-Selectable Table 1. Mode Select Table PROTOCOL Not Used (Default V.11) RS-530A RS-530 X. V. RS-449/V. V.28/RS-232 ...
Page 16
... V GND MXL1544 11 M0 MAX3175 INVERT M2 14 DCE/DTE 12 13 MXL1344A 21 LATCH DTE DCE 2 RXD A TXD A 14 RXD B TXD B 24 RXC A SCTE A 11 SCTE B RXC B 15 ...
Page 17
... MXL1543 C11 1µF 27 GND MXL1544 MAX3175 15 INVERT 12 13 MXL1344A 21 LATCH RXD A (104) 16 RXD B 17 RXC A (115) 9 RXC B 15 TXC A (114) 12 TXC B 24 SCTE A (113) 11 SCTE B 2 TXD A (103) 14 ...
Page 18
... R3 15 MXL1543 C11 1µF 27 GND MXL1544 MAX3175 15 INVERT MXL1344A 21 LATCH 2 TXD A (103) 14 TXD B 24 SCTE A (113) 11 SCTE B 15 TXC A (114) 12 TXC B 17 RXC A (115) 9 RXC B 3 RXD A (104) 16 RXD SHIELD ...
Page 19
... Multiprotocol, Software-Selectable Chip Information TRANSISTOR COUNT: 2348 PROCESS: BiCMOS ______________________________________________________________________________________ Control Transceivers Pin Configuration TOP VIEW T1IN 3 26 T2IN 4 25 T3IN 5 24 MXL1544 R1OUT 6 23 MAX3175 R2OUT 7 22 R3OUT 8 21 T4IN 9 20 R4OUT ...
Page 20
Multiprotocol, Software-Selectable Control Transceivers Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without ...