MAXIM MAX13174E User Manual

Typical Operating Circuit

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.

General Description

The MAX13174E contains six pin-selectable, multiproto­col cable termination networks. Each network is capa­ble of terminating V.11 (RS-422, RS-530, RS-530A,
RS-449, V.36, and X.21) with a 100Ω differential load,
V.35 with a T-network load, or V.28 (RS-232) and V.10
(RS-423) with an open-circuit load for use with trans­ceivers having on-chip termination. The termination pro­tocol can be selected by the serial interface cable
wiring or by pin control. The MAX13174E replaces dis­crete resistor termination networks and expensive
relays required for multiprotocol termination, saving
space and cost.

The MAX13174E terminator is ideal to form a complete
+5V cable- or pin-selectable multiprotocol DCE/DTE
interface port when used with the MAX13170E and
MAX13172E transceiver ICs. The MAX13174E termina­tor can use the VEEpower generated by the
MAX13170E charge pump, simplifying system design.
The MAX13174E/MAX13170E/MAX13172E are pin­for-pin compatible with the MXL1344A/MXL1543/
MXL1544/MAX3175.

The MAX13174E is available in a 24-pin SSOP package
and is specified for the 0°C to +70°C commercial tem­perature range.

Features

♦ Supports V.11 and V.35 Termination

♦ Pin-Selectable Termination

♦ Pin-Selectable DCE/DTE Support

♦ Replaces Discrete Resistor Termination Networks

and Expensive Relays

♦ Available in 24-Pin SSOP Package

♦ Certified TBR-1 and TBR-2-Compliant Chipset

(NET1 and NET2)—Pending Completion of Testing

Applications

Data Networking PCI Cards

CSU and DSU Telecommunication Equipment

Data Routers Data Switches

MAX13174E

+5V Multiprotocol, Pin-Selectable

Cable Terminator

________________________________________________________________

Maxim Integrated Products

1

19-4742; Rev 0; 7/09

EVALUATION KIT

AVAILABLE

Ordering Information

Pin Configuration appears at end of data sheet.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

PART TEMP RANGE PIN-PACKAGE

MAX13174ECAG+ 0°C to +70°C 24 SSOP

CTS DSR RTSDTRDCD

LL

T4

R4

13

18 5 10 8 22 6 23 20 19 4 1 7 16 3 9 17 12 15 11 24 14 2

CTS A (106)

DSR B

CTS B

LL A (141)

R2R3

DSR A (109)

MAX13172E

R1

T3

DCD A (107)

DCD B

DTR A (108)

DTR B

T1T2

RTS A (105)

RTS B

DB-25 CONNECTOR

RXD RXC TXDTXC SCTE

MAX13170E

R2R3

R1

RXC B

RXD A (104)

RXD B

SG (102)

SHIELD (101)

RXC A (115)

T3

TXC B

SCTE A (113)

SCTE B

TXC A (114)

T1T2

TXD B

TXD A (103)

MAX13174E

MAX13174E

+5V Multiprotocol, Pin-Selectable
Cable Terminator

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

(All voltages to GND, unless otherwise noted.)
Supply Voltages

V

CC

.......................................................................-0.3V to +6V

V

EE

.....................................................................+0.3V to -7.1V

Logic-Input Voltages

M0, M1, M2, DCE/DTE, LATCH............................-0.3V to +6V

Termination Network Inputs

R_A, R_B, R_C.....................................................-15V to +15V

R_A to R_B (high-impedance state) ................................±14V

R_A to R_B.........................................................................±6V

R_C to R_B (high-impedance state) ..................................±3V

R_A to R_C.........................................................................±3V

R_C to R_A (high-impedance state) ................................±14V

Continuous Power Dissipation (T

A

= +70°C)

24-Pin SSOP (derate 14.9mW/°C above +70°C) .......1196mW

Junction-to-Case Thermal Resistance (θ

JC

) (Note 1)

24-Pin SSOP..............................................................24.6°C/W

Junction-to-Ambient Thermal Resistance (θ

JA

) (Note 1)

24-Pin SSOP..............................................................66.9°C/W

Operating Temperature Range...............................0°C to +70°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

ELECTRICAL CHARACTERISTICS

(VCC= +4.5V to +5.5V, VEE= -4V to -7.1V, TA= 0°C to +70°C, unless otherwise noted. Typical values are at TA= +25°C, VCC= +5V,
V

EE

= -5V, unless otherwise noted.) (Note 2)

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial

.

VCC Operating Range V

VEE Operating Range V

VCC POR Rising Threshold 1 1.88 2.75 V

VCC Supply Current

VEE Supply Current I

TERMINATOR INPUTS

Differential-Mode Impedance
V.35 Mode

Common-Mode Impedance
V.35 Mode

Differential-Mode Impedance
V.11 Mode

High-Impedance Leakage
Current

Differential Path Enable Time 50 µs

Differential Path Disable Time 300 µs

Common-Mode Path Enable Time 12 µs

Common-Mode Path Disable

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

EE

I

CC

I

CC_NOCABVEE

EE

I

All inputs connected to GND or VCC, except
no-cable mode

= 0V, M[x] = 1111 (Note 3) 1.34 2.85

All inputs connected to GND or VCC, except
no-cable mode

-2V ≤ V

-2V ≤ V

-7V ≤ VCM ≤ +7V, all channels, except no­cable mode (Figure 1)

-7V ≤ V
mode, V

-15V ≤ V

Z

≤ +2V, all channels (Figure 1) 90 104 110 Ω

CM

≤ +2V, all channels (Figure 2) 135 153 165 Ω

CM

≤ +7V, all channels, no-cable

CM

= 0V, VAB ≤ 2V (Figure 1)

EE

≤ +15V -50 +50 µA

R_A

4.5 5 5.5 V

-7.1 -5 -4 V

2.2 6.15

-3.5 -1 mA

100 104 110

115

2µs

mA

Ω

MAX13174E

+5V Multiprotocol, Pin-Selectable

Cable Terminator

_______________________________________________________________________________________ 3

Note 2: All parameters tested at a single temperature. Specifications over temperature are guaranteed by design.
Note 3: M[x] is the input bus DCE/DTE, M2, M1, M0.

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +4.5V to +5.5V, VEE= -4V to -7.1V, TA= 0°C to +70°C, unless otherwise noted. Typical values are at TA= +25°C, VCC= +5V,
V

EE

= -5V, unless otherwise noted.) (Note 2)

Typical Operating Characteristics

(VCC= +5V, VEE= -5V, TA = +25°C, unless otherwise noted.)

LOGIC INPUTS (M0, M1, M2, LATCH, DCE/DTE)

Input High Voltage V

Input Low Voltage V

Logic Input Current I

ESD PROTECTION

All Other Pins Human Body Model ±2 kV

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

IH

IL

IN

VIN = VCC or GND -1 +1 µA

0.66 x
V

CC

0.33 x
V

CC

V

V

Human Body Model ±15

Air Gap Discharge IEC 61000-4-2 ±10R_A, R_B to GND

kV

Contact Discharge IEC 61000-4-2 ±6

V.11 OR V.35 DIFFERENTIAL IMPEDANCE

vs. TEMPERATURE

110

109

108

107

106

105

104

IMPEDANCE (I)

103

102

101

100

VCM = 0V

VCM = +7V

070

TEMPERATURE (NC)

VCM = -7V

MAX13174E toc01

605030 402010

V.11 OR V.35 DIFFERENTIAL IMPEDANCE

vs. COMMON-MODE VOLTAGE (V

110

109

108

107

106

105

104

IMPEDANCE (I)

103

102

101

100

-7 7

V.11 OR V.35 DIFFERENTIAL IMPEDANCE

vs. SUPPLY VOLTAGE (VCC)

5.3

5.14.94.74.5 5.5

VCC (V)

VCM (V)

)

CM

53-1 1-3-5

MAX13174E toc02

110

109

108

107

106

105

104

IMPEDANCE (I)

103

102

101

100

MAX13174E toc03

MAX13174E

+5V Multiprotocol, Pin-Selectable
Cable Terminator

4 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC= +5V, VEE= -5V, TA = +25°C, unless otherwise noted.)

V.11 OR V.35 DIFFERENTIAL IMPEDANCE

vs. SUPPLY VOLTAGE (VEE)

110

109

108

107

106

105

104

IMPEDANCE (I)

103

102

101

100

VEE (V)

V.35 COMMON-MODE IMPEDANCE

vs. SUPPLY VOLTAGE (VCC)

165

160

155

150

IMPEDANCE (I)

145

140

135

VCM = +2V

VCM = -2V

V

CC

(V)

V.11 OR V.35 DIFFERENTIAL IMPEDANCE

MAGNITUDE vs. FREQUENCY

120

100

80

60

IMPEDANCE (I)

40

20

0

0.1 100

-5-6-7 -4

5.35.14.94.74.5 5.5

FREQUENCY (MHz)

101

MAX13174E toc04

MAX13174E toc07

V.35 COMMON-MODE IMPEDANCE

vs. TEMPERATURE

165

160

155

150

IMPEDANCE (I)

145

140

135

070

VCM = +2V

VCM = -2V

TEMPERATURE (

MAX13174E toc05

605040302010

NC)

V.35 COMMON-MODE IMPEDANCE

V.35 COMMON-MODE IMPEDANCE

vs. COMMON-MODE VOLTAGE (VCM)

165

160

155

150

IMPEDANCE (I)

145

140

135

HI-Z MODE SUPPLY CURRENT

vs. SUPPLY VOLTAGE (VEE)

MAX13174E toc08

1000

900

800

700

600

500

400

300

SUPPLY CURRENT (FA)

200

100

0

070

165

160

155

150

IMPEDANCE (I)

145

140

135

VCM = +2V

VCM = -2V

V

EE

-5-6-7 -4

(V)

V.11 OR V.35 DIFFERENTIAL IMPEDANCE

PHASE vs. FREQUENCY

15

10

MAX13174E toc10

5

0

-5

-10

-15

PHASE (DEGREES)

-20

-25

-30

-35

0.1 100
FREQUENCY (MHz)

(V)

V

CM

vs. TEMPERATURE

I

CC

I

EE

TEMPERATURE (NC)

101

MAX13174E toc06

10-1-2 2

MAX13174E toc09

605030 402010

MAX13174E toc11