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19-1879; Rev 0; 12/00
MAX3170 Evaluation Kit
General Description
The MAX3170 evaluation kit (EV kit) combines Maxim's multiprotocol clock/data transceiver (MAX3170), control transceiver (MAX3171), and cable terminator (MAX3172) chips. This chipset forms a complete software-selectable data terminal equipment (DTE) or data communications equipment (DCE) interface port. The MAX3170, MAX3171, and MAX3172 chipset supports V.28 (RS-232), V.11 (RS-449/V.36, EIA-530, EIA530A, X.21), and V.35 protocols. Compliance for NET1, NET2, TBR-1, and TBR-2 has been certified by TUV Telecom Services, Inc. Internal charge pumps allow this kit to operate from a single +3.3V supply. The MAX3170 EV kit was designed to take advantage of the chipset's flow-through pinout. This kit includes a 40-pin header (logic signals), a female DB25 connector (protocol signals), three SMA connectors (high-speed logic signals), and scope probe connectors for measuring the high-speed data signals (logic and protocol signals).
Features
o Industry's First Single +3.3V Supply Multiprotocol Chipset o Industry's First Multiprotocol Chipset with True Failsafe Receivers o Programmable Transceiver Supports V.28 (RS-232) V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21) V.35 o Certified TBR-1 and TBR-2 Compliant o Certified NET1 and NET2 Compliant o Programmable Cable Termination (MAX3172) o Receiver Control Line Deglitching o Fully Assembled and Tested
Evaluates: MAX3170/MAX3171/MAX3172
Ordering Information
PART MAX3170EVKIT TEMP. RANGE 0C to +70C
Component List
DESIGNATION C1, C2, C5, C6, C7, C10 QTY 6 DESCRIPTION 3.3F, 10V X7R ceramic capacitors (1206) Taiyo Yuden LMK316BJ335ML 1.0F, X5R ceramic capacitors (0805) Taiyo Yuden LMK212BJ105MG 100pF ceramic capacitors (0805) 0.1F ceramic capacitors (0805) 47F, 6.3V tantalum capacitor AVX TAJD476M006 Red LEDs Green LEDs DESIGNATION D13-D16 JU1-JU7, JU12 JU8-JU11, JU14-JU17, JU19 None J1 QTY 4 8 9 17 1 DESCRIPTION Yellow LEDs 3-pin headers 2-pin headers Shunts 40-pin header (2x20) 0.1in center DB25 right-angle female connector AMP 747846-4 SMA connectors (PC edge mount) EFJohnson 142-0701-801 49.9 1% resistors (0805) 100 5% resistors (0805)
C3, C4, C8, C9
4
C11, C12, C13 C14, C15, C17
3 3
J2
1
C16 D1, D2, D3, D5, D6, D9 D4, D7, D8, D10, D11, D12
1
J3, J4, J5 R1, R2, R3 R8-R23
3 3 16
6 6
________________________________________________________________ Maxim Integrated Products
1
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Component List (continued)
DESIGNATION RXD/TXD, RXC/SCTE, TXC/N/A, N/A/TXC, SCTE/RXC, TXD/RXD, RXDA/TXDA, RXDB/TXDB, RXCA/SCTEA, RXCB/SCTEB, TXCA/TXCA, TXCB/TXCB, SCTEA/RXCA, SCTEB/RXCB, TXDA/RXDA, TXDB/RXDB U1 U2 U3 U4, U5 QTY DESCRIPTION
light, indicating no-cable mode. All board labels, including all of the labels for the LEDs, follow the same label format. The board label format includes a top label which corresponds to DCE mode, and a bottom label which corresponds to DTE mode. 3) The green LEDs are attached to the receiver logic outputs of the MAX3170 and MAX3171. The LEDs will light when the receiver logic outputs are a logic high. Verify that all green LEDs light when no signals are attached to the DB25 connector. Note: The receivers have the true fail-safe feature allowing zero differential voltage to be a valid state, which forces the receiver outputs high. 4) The red LEDs are attached to the transmitter logic inputs of the MAX3170 and MAX3171. The LEDs will light when the transmitter logic inputs are a logic high. Verify that none of the red LEDs light when no signals are connected to the 40-pin header.
16
Scope probe connectors (top mount) Specialty Conn 33JR135-1
1 1 1 2
MAX3170CAI (clock/data transceiver) (28 SSOP) MAX3171CAI (control transceiver) (28 SSOP) MAX3172CAI (terminator) (28 SSOP) 74HC240 (LED inverting drivers)
Detailed Description
The MAX3170 EV kit was designed to take advantage of the chipset's flow-through pinout. The logic signals have all been routed to the 40-pin header (located on the left side of the EV kit board), and the protocol signals have all been routed to the female DB25 connector (located on the right side of the board). Various connectors have been added to the MAX3170 EV kit to aid in taking quality measurements. Leave JU19 unconnected when measuring the supply current of the chipset. Scope probe connectors have been added to measure the high-speed signals of the transmitter and receiver inputs and outputs of the MAX3170. The scope probe connectors located on the left side of the board are connected to the logic input and output signals. The scope probe connectors located on the right side of the board are connected to the protocol input and output signals. Three SMA connectors also have been provided for driving the MAX3170's highspeed transmitter inputs. The 16 LEDs across the top of the board are logic indicators. The red LEDs indicate the state of the transmitter inputs, the green LEDs indicate the state of the receiver outputs, and the yellow LEDs indicate the state of the protocol and the protocol termination modes of the MAX3170 and MAX3171. The LEDs will light up when their corresponding signals are logic high.
Quick Start
The MAX3170 EV kit is extremely flexible and has several settings for both the ICs as well as the board. The ICs have been put into no-cable mode, as the default mode. In no-cable mode the user is able to program the desired protocol with an external controller connected to the 40-pin header. The one exception is the INVERT signal, which does not have an internal pullup and is connected as a logic low for the default setting. The default mode settings are shown in Tables 1-4. By default, the SMA connectors (J3, J4, and J5) are terminated with 50 and the control transmitter input lines are all tied low. 1) Connect a single +3.3V 5% power supply to VCC and GND located at the lower-left corner of the MAX3170 EV kit board. 2) The yellow LEDs indicate the protocol mode of the chipset. The LEDs will light when the corresponding signal is a logic high. Verify that all yellow LEDs
2
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Table 1. MAX3170 Default Mode
MODE No cable M2 1 M1 1 M0 1 DCE/DTE 1 T1 Z T2 Z T3 Z R1 Z R2 Z R3 Z
Z = High impedance. Note: Shaded areas share a single IC pin.
Table 2. MAX3171 Default Mode
MODE No cable M2 1 M1 1 M0 1 DCE/DTE 1 T1 Z T2 Z T3 Z R1 Z R2 Z R3 Z
Z = High Impedance. Note: Shaded areas share a single IC pin.
Table 3. MAX3172 R4/T4 Default Mode
MODE No cable M2 1 M1 1 M0 1 DCE/DTE 1 INVERT 0 T4 Z R4 Z
Z = High impedance.
Table 4. MAX3172 Default Termination Mode
MODE No cable M2 1 M1 1 M0 1 DCE/DTE 1 INVERT 0 R1 V.11 R2 V.11 R3 V.11 R4 V.11 R5 V.11
Configuration
The following is a step-by-step procedure to configure the MAX3170 EV kit. The MAX3170 EV kit is extremely flexible and has several settings for both the ICs, as well as the board. The logic signals have all been routed to the 40-pin header on the left side of the board. The protocol signals have all been routed to the female DB25 connector on the right side of the board. The chipset protocol modes can be configured to support V.28 (RS-232), V.11 (RS-449/V.36, EIA-530, EIA530A, X.21), and V.35 protocols. All chipset logic inputs, LED power, and shield ground connection are jumper selectable. The board includes SMA connectors (J3, J4, and J5) with optional 50 termination. The board settings will be separated in the following sections: chipset protocol modes, clock/data transmitter
input settings, control transmitter input settings, SMA termination, and power/ground. 1) Connect a single +3.3V 5% power supply to VCC and GND located at the lower-left corner of the MAX3170 EV kit board. 2) Chipset protocol modes: View the desired chipset protocol mode using the MAX3170, MAX3171, and MAX3172 selection mode tables (Tables 5-8). Connect the jumpers to the corresponding state depending on whether the mode lines will be controlled by an external controller or pin-strapped to a known state using Tables 9 and 10. Unlike the other IC protocol mode lines (M2, M1, M0, and DCE/DTE), the INVERT line does not have a pullup.
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
3) Clock/data transmitter input settings: Connect the clock/data jumpers to the corresponding state using Table 11. Force the inputs of all unused transmitters low so their corresponding LED indicators will be off. 4) Control transmitter input settings: Connect the control jumpers to the corresponding state using Table 12. Force the inputs of all unused transmitters low so their corresponding LED indicators will be off. 5) SMA termination: Connect the termination jumpers, depending on whether the signal source needs to be terminated with 50, to the corresponding state using Table 13. Leave unused transmitter input lines terminated so the line is pulled down in a known state. When using SMA termination, avoid connecting JU1, JU2, and JU3 to VCC. 6) Power/ground: Connect the power and ground jumpers according to the desired operation using Table 14. Leave JU19 unconnected (open) when measuring the supply current of the chipset.
Table 5. MAX3170 Mode Selection
MODE V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable M2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 M1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 M0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 DCE/DTE 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 T1 V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z T2 V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z T3 Z Z Z Z Z Z Z Z V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z R1 V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z Z Z Z Z Z Z Z Z R2 V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z R3 V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z V.11 V.11 V.11 V.11 V.35 V.11 V.28 Z
Z = High impedance. Note: Shaded areas share a single IC pin.
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Table 6. MAX3171 Mode Selection
MODE V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable M2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 M1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 M0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 DCE/DTE 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 T1 V.11 V.11 V.11 V.11 V.28 V.11 V.28 Z V.11 V.11 V.11 V.11 V.28 V.11 V.28 Z T2 V.11 V.10 V.11 V.11 V.28 V.11 V.28 Z V.11 V.10 V.11 V.11 V.28 V.11 V.28 Z T3 Z Z Z Z Z Z Z Z V.11 V.11 V.11 V.11 V.28 V.11 V.28 Z R1 V.11 V.11 V.11 V.11 V.28 V.11 V.28 Z Z Z Z Z Z Z Z Z R2 V.11 V.10 V.11 V.11 V.28 V.11 V.28 Z V.11 V.10 V.11 V.11 V.28 V.11 V.28 Z R3 V.11 V.11 V.11 V.11 V.28 V.11 V.28 Z V.11 V.11 V.11 V.11 V.28 V.11 V.28 Z
Z = High impedance. Note: Shaded areas share a single IC pin.
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Table 7. MAX3172 R4/T4 Mode Selection
MODE V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable V.11 RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable M2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 M1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 M0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 DCE/DTE 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 INVERT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 T4 Z Z Z Z Z Z Z Z V.10 V.10 V.10 V.10 V.28 V.10 V.28 Z V.10 V.10 V.10 V.10 V.28 V.10 V.28 Z Z Z Z Z Z Z Z Z R4 V.10 V.10 V.10 V.10 V.28 V.10 V.28 Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z V.10 V.10 V.10 V.10 V.28 V.10 V.28 Z
Z = High impedance.
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Table 8. MAX3172 Termination Mode Selection
MODE V.11 (Unterminated) RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable V.11 (Unterminated) RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 No cable M2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 M1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 M0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 DCE/DTE 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 INVERT X X X X X X X X X X X X X X X X R1 Z Z Z Z V.35 Z Z V.11 Z Z Z Z V.35 Z Z V.11 R2 Z Z Z Z V.35 Z Z V.11 Z Z Z Z V.35 Z Z V.11 R3 Z V.11 V.11 V.11 V.35 V.11 Z V.11 Z Z Z Z V.35 Z Z V.11 R4 Z V.11 V.11 V.11 V.35 V.11 Z V.11 Z V.11 V.11 V.11 V.35 V.11 Z V.11 R5 Z V.11 V.11 V.11 V.35 V.11 Z V.11 Z V.11 V.11 V.11 V.35 V.11 Z V.11
Z = High impedance.
Table 9. Chipset Protocol Mode Jumper Settings
JUMPER JU14 SIGNAL (BUS) DCE/DTE STATE Open* Closed JU15 M2 Open* Closed JU16 M1 Open* Closed JU17 M0 Open* Closed FUNCTION Logic high. (Internal pullup in IC.) DCE/DTE line can be driven by signal applied to J1-30 (40-pin header). Logic low Logic high. (Internal pullup in IC.) M2 line can be driven by signal applied to J1-32 (40-pin header). Logic low Logic high. (Internal pullup in IC.) M1 line can be driven by signal applied to J1-34 (40-pin header). Logic low Logic high. (Internal pullup in IC.) M0 line can be driven by signal applied to J1-36 (40-pin header). Logic low
*Default jumper setting.
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Table 10. Invert Mode Jumper Settings
JUMPER JU12 SIGNAL INVERT STATE 1-2* 2-3 Open Logic high Logic low Apply signal to J1-38 (40-pin header) FUNCTION
*Default jumper setting.
Table 11. Clock/Data Transmitter Input Jumper Settings
JUMPER JU1 DCE/DTE RXD/TXD STATE 1-2 2-3 Open* 1-2 2-3 Open* 1-2 2-3 Open* FUNCTION Logic high Logic low Apply signal to SMA connector J3 Logic high Logic low Apply signal to SMA connector J4 Logic high Logic low Apply signal to SMA connector J5
JU2
RXC/SCTE
JU3
TXC/N/A
*Default jumper setting.
Table 12. Control Transmitter Input Jumper Settings
JUMPER JU4 DCE/DTE CTS/RTS STATE 1-2 2-3* Open 1-2 2-3* Open 1-2 2-3* Open 1-2 2-3* Open FUNCTION Logic high Logic low Apply signal to J1-14 (40-pin header) Logic high Logic low Apply signal to J1-16 (40-pin header) Logic high Logic low Apply signal to J1-18 (40-pin header) Logic high Logic low Apply signal to J1-26 (40-pin header)
JU5
DSR/DTR
JU6
DCD/N/A
JU7
LL/N/A
*Default jumper setting.
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MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
Table 13. Termination settings
JUMPER JU8 JU9 JU10 DCE/DTE RXD/TXD RXC/SCTE TXC/ N/A STATE Open Closed* Open Closed* Open Closed* Unterminated Terminated with 50 Unterminated Terminated with 50 Unterminated Terminated with 50 FUNCTION
*Default jumper setting.
Table 14. Power/Ground Jumper Settings
JUMPER JU11 JU19 NAME SHIELD LED ANODE STATE Open Closed* Open Closed* FUNCTION DB25 cable shield (J2-1) disconnected from signal ground DB25 cable shield (J2-1) shorted to signal ground LED anode is floating LED anode is connected to VCC
*Default jumper setting.
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Evaluates: MAX3170/MAX3171/MAX3172
DCE/DTE INVERT JU17 JU16 JU14 C5 3.3F 1 C1 3.3F JU9 JU10 JU2 RXD/TXD 5 T1IN T2IN T3IN R1OUT R2OUT R3OUT 6 7 8 9 10
JU3 1 2
M2 M1 M0
VCC
123 C17 0.1F C16 47F VCC JU12 JU15
R3 49.9 27 VCC 28 25 C4 1.0F
R2 49.9 R1 JU8 49.9 C2 3.3F
MAX3170
C3 1.0F
U1
2 3 4
C1+ C1-
V+ C2+ C2V-
J1-2 RXC/SCTE TXC/N/A N/A/TXC SCTE/RXC TXD/RXD 3 3
3
JU1 1 2 1 2
J1-4
J1-6
J1-8 J1-10
J1-12
SMA CONNECTORS J3 J4 J5 MO M1 M2 DCE/DTE GND 26 SCOPE PROBES CONNECTORS C10 3.3F 27 1 C6 3.3F C8 1.0F
U2
11 12 13 14
T1OUTA T1OUTB T2OUTA T2OUTB T3OUTA/R1INA T3OUTB/R1INB R2INB R2INA R3INA R3INB
24 23 22 21 20 19 18 17 16 15 RXDA/TXDA RXDB/TXDB RXCA/SCTEA RXCB/SCTEB TXCA/TXCA TXCB/TXCB SCTEB/RXCB SCTEA/RXCA TXDA/RXDA TXDB/RXDB
J2-2 J2-14 J2-24 J2-11 J2-15 J2-12 J2-9 J2-17 J2-3 J2-16
VCC C1+ C1C9 1.0F 28 25
MAX3170 Evaluation Kit
2 3 4
MAX3171
J1-14 J1-16 J1-18 J1-20 J1-22 J1-24 JU6 1 2 3
JU4 1 2 3 JU5 1 2 3 CTS/RTS DSR/DTR DCD/N/A N/A/DCD DTR/DSR RTS/CTS T1OUTA T1IN T1OUTB T2IN T2OUTA T3IN T2OUTB R1OUT R2OUT T3OUTA/R1INA R3OUT T3OUTB/R1INB MO R2INB M1 R2INA M2 R3INA DCE/DTE GND R3INB 26 5 6 7 8 9 10 11 12 13 14 24 23 22 21 20 19 18 17 16 15
C7 3.3F
V+ C2+ C2V-
J2-4 J2-19 J2-20 J2-23 J2-8 J2-10 J2-22 J2-6 J2-5 J2-13
4
LL/N/A N/A/LL
J2-7 VCC 15 16 21 J2-1 J2-21 N/C T4IN R4OUT V+ VR1C 7 8 26 24 17 JU11
J1-26 J1-28
JU7 1 2 3
C12 100pF C13 100pF C11 100pF
Figure 1. MAX3170 EV Kit Schematic (Sheet 1 of 2) 10 ______________________________________________________________________________________
19
12
J2-25 R2C R3C
J1-1 J1-3 J1-5 J1-7 J1-9 J1-11 J1-13 J1-15 J1-17 J1-19 J1-21
J1-23 J1-25 J1-27 J1-29 J1-31 J1-33 J1-35 J1-37 J1-39 J1-40
J1-38 J1-30 J1-32 J1-34 J1-36
N/C
3 2 1 27 28
M0 M1 M2 DCE/DTE INVERT
R1A U3 R1B MAX3172 R2A R2B R3A R3B R4A R4B R5A R5B T4OUT R4INA GND 9, 18, 22
20 14 13 11 10 5 6 25 23
J2-18
MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
VCC JU19
C14 0.1F R8 100 U4-A 1 2 4 6 8 74HC240 20 18 16 14 12 10 R11 100 R10 100 R9 100
D1 U5-A 1 D2 DCD/N/A N/A/DCD DTR/DSR RTS/CTS 2 4 6 8 74HC240 18 16 14 12 10 20
C15 0.1F R16 100 R17 100 R18 100 R19 100
D9
D10
RXD/TXD RXC/SCTE TXC/N/A N/A/TXC
D3
D11
D4
D12
R12 100 U4-B 19 11 13 15 17 74HC240 9 7 5 3 R15 100 R14 100 R13 100
D5 U5-B 19 D6 DCE/DTE M2 M1 M0 11 13 15 17 74HC240 9 7 5 3
R20 100 R21 100 R22 100 R23 100
D13
D14
DSR/DTR CTS/RTS TXD/RXD SCTE/RXC
D7
D15
D8
D16
Figure 1. MAX3170 EV Kit Schematic (Sheet 2 of 2)
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11
MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
2.0"
2.0"
Figure 2. MAX3170 EV Kit Component Placement Guide-- Top Layer (Silkscreen)
Figure 3. MAX3170 EV Kit Component Placement Guide-- Top Layer (Component Side)
2.0"
Figure 4. MAX3170 EV Kit PC Board Layout--Inner Layer 2 (GND) 12 ______________________________________________________________________________________
MAX3170 Evaluation Kit Evaluates: MAX3170/MAX3171/MAX3172
2.0"
2.0"
Figure 5. MAX3170 EV Kit PC Board Layout--Inner Layer 3 (VCC)
Figure 6. MAX3170 EV Kit PC Board Layout--Bottom Layer (Solder Side)
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 notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________13 (c) 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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