DS26502DK ,T1/E1/J1/64KCC Bits Element Design Kit DS26502DK T1/E1/J1/64KCC Bits Element Design Kit
DS26502L ,T1/E1/J1/64KCC BITS ElementFEATURES The DS26502 is a building-integrated timing- G.703 2048kHz Synchronization Interface sup ..
DS26502L+ ,T1/E1/J1/64KCC BITS ElementFEATURES The DS26502 is a building-integrated timing- G.703 2048kHz Synchronization Interface supp ..
DS26502LN ,T1/E1/J1/64KCC BITS ElementBLOCK DIAGRAMS ....11 4. PIN FUNCTION DESCRIPTION ....14 4.1 TRANSMIT PLL...14 4.2 TRANSMIT SIDE..1 ..
DS26502LN ,T1/E1/J1/64KCC BITS ElementFEATURES.7 1.1 GENERAL ...7 1.2 LINE INTERFACE...7 1.3 JITTER ATTENUATOR (T1/E1 MODES ONLY) ....... ..
DS26502LN+ ,T1/E1/J1/64KCC BITS ElementApplications BITS Timing Accepts 16.384MHz, 12.8MHz, 8.192MHz, Rate Conversion 4.096MHz, 2.048MHz ..
E53NA50 ,NABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Drain-source Voltage (V =0) 500 VDS GSV 500 VD ..
EA2-12 ,COMPACT AND LIGHTWEIGHTAPPLICATIONSElectronic switching systems, PBX, key telephone systems, automatic test equipment and ..
EA2-12NU ,COMPACT AND LIGHTWEIGHTFEATURESª Low power consumptionª Compact and light weightª 2 form c contact arrangementª Low magnet ..
EA2-12S ,COMPACT AND LIGHTWEIGHTFEATURESª Low power consumptionª Compact and light weightª 2 form c contact arrangementª Low magnet ..
EA2-12TNU ,COMPACT AND LIGHTWEIGHTAPPLICATIONSElectronic switching systems, PBX, key telephone systems, automatic test equipment and ..
EA2-4.5NU ,COMPACT AND LIGHTWEIGHTAPPLICATIONSElectronic switching systems, PBX, key telephone systems, automatic test equipment and ..
DS26502DK
T1/E1/J1/64KCC Bits Element Design Kit
DS26502DK
T1/E1/J1/64KCC Bits Element
Design Kit
GENERAL DESCRIPTION The DS26502DK is an easy-to-use evaluation board
for the DS26502 T1/E1/J1/64KCC BITS element.
The DS26502DK is intended to be used as a stand-
alone design kit. The board is complete with a
DS26502 BITS element, transformers, termination
resistors, FPGA-based configuration switches, and
network connectors. Dallas’ ChipView software gives
point-and-click access to configuration and status
registers from a Windows®-based PC. On-board
LEDs indicate receive loss-of-signal and interrupt
status as well as multiple clock and signal routing
configurations.
Windows is a registered trademark of Microsoft Corp.
DESIGN KIT CONTENTS DS26502DK Design Kit
CD_ROM Including: • ChipView Software • DS26502DK Data Sheet • DS26502 Data Sheet • DS26502 Errata Sheet (if applicable)
ORDERING INFORMATION
PART DESCRIPTION DS26502DK Stand-Alone Design Kit for DS26502
FEATURES � Expedites New Designs by Eliminating First-
Pass Prototyping � Demonstrates Key Functions of DS26502
BITS Element � Includes DS26502 BITS Element,
Transformers, BNC, and RJ48 Network
Connectors and Termination Passives � BNC Connections for 75Ω E1 � Bantam and RJ48 Connectors for 120Ω E1
and 100Ω T1 � Interface Directly to Windows-Based
Computers � ChipView Software Provides Point-and-Click
Access to the DS26502 Register Set � Software Controlled (Register Mapped)
Configuration Switches to Facilitate Clock
and Signal Routing � All Equipment-Side Framer Pins are Easily
Accessible for External Data Source/Sink � LEDs for Loss-of-Signal and Interrupt Status
as well as Indications for Multiple Clock and
Signal Routing Configurations � Easy-to-Read Silkscreen Labels Identify the
Signals Associated with All Connectors,
Jumpers, and LEDs
DS26502DK
COMPONENT LIST
DESIGNATION QTY DESCRIPTION SUPPLIER PART C1, C4, C23, C51, C53 5 10μF 20%, 10V ceramic capacitors (1206) Panasonic ECJ-3YB1A106M
C2–C3, C6–C9, C11,
C12, C14, C15, C17, C18,
C20, C21, C25–C30, C32,
C33, C35, C36, C38,
C45–C50, C52, C54, C55,
C57–C60, C62, C63, C68
41 1μF 10%, 16V ceramic capacitors (1206) Panasonic ECJ-3YB1C105K
C5, C10, C22, C24, C31,
C34, C37, C39–C41, C43,
C65–C67, C69, C70
16 0.1μF 20%, 16V X7R ceramic capacitors (0603) AVX 0603YC104MAT
C13, C19, C42, C44, C64 5 10μF 20%, 16V tantalum capacitors (B case) Panasonic ECS-T1CX106R
C16, C56, C61 3 68μF 20%, 16V tantalum capacitors (D case) Panasonic ECS-T1CD686R
D1 1 1A 50V general-purpose silicon diode General
Semiconductor 1N4001
DS1, DS2, DS6–DS9 6 LED, RED, SMD Panasonic LN1251C
DS3 1 LED, GREEN, SMD Panasonic LN1351C
DS4 1 LED, AMBER, SMD Panasonic LN1451C
DS5 1 LED, GREEN, SMD
(Not populated) Panasonic LN1351C
DS10 1 LED red/green, 5mm red/green right-angle PCMT Digi-Key 350-1055-ND
J1 1 Socket, banana plug, horizontal, black Mouser
Electronics 164-6218
J2 1 Socket, banana plug, horizontal, red Mouser
Electronics 164-6219
J3, J6–J8 4 Terminal strip, 16-pin, dual row, vertical Samtec TSW-108-07-T-D
J4 1 DB9 right-angle, long case connector AMP 747459-1
J5 1 L_CONNECTOR BNC 75Ω vertical 5-pin Cambridge CP-BNCPC-004
J9 1 L_RJ48 8-pin, single-port connector MOLEX 15-43-8588
J10, J11 2 BNC connectors, 75Ω right-angle 5-pin Kruvand UCBJR220
J12, J13 2 L_CONN, Bantam jack, right-angle Switchcraft RTT34B02
JP1, JP3–JP8 7 100-mil, 2 position jumper labstock
JP2 1 14-pin header, remove 'missing pin' labstock
L1 1 Inductor, 22.0μH 2-pin SMT 20% Coiltronics UP1B-220
NP1, NP2 2 10pF 5%, 50V tall case ceramic capacitors (1206)
Do not populate Phycomp 1206CG100J9B200
R1, R8–R11 5 0Ω 5%, 1/8W resistors (1206) Panasonic ERJ-8GEYJ0R00V
R2, R13, R23, R27, R43,
R47, R67–R70 10 330Ω 5%, 1/16W resistors (0603) Panasonic ERJ-3GEYJ331V
DS26502DK
DESIGNATION QTY DESCRIPTION SUPPLIER PART R3, R18–R20, R22, R25,
R26, R28–R31, R33–R42,
R44–R46, R49, R50, R53,
R56, R59, R61, R62, R65,
R72
33 10kΩ 5%, 1/16W resistors (0603) Panasonic ERJ-3GEYJ103V
R4, R5, R48, R51, R54,
R55, R57, R58 8 30Ω 5%, 1/16W resistors (0603) Panasonic ERJ-3GEYJ300V
R6, R7 2 61.9Ω 1%, 1/8W resistors (1206) Panasonic ERJ-8ENF61R9V
R12 1 51Ω 5%, 1/16W resistor (0603) Panasonic ERJ-3GEYJ510V
R14–R17, R21, R24, R63,
R64, R66, R71 10 1.0kΩ 5%, 1/16W resistors (0603) Panasonic ERJ-3GEYJ102V
R32 1 1.0kΩ 5%, 1/10W resistor (0805) Panasonic ERJ-6GEYJ102V
R52 1 51.1Ω 1%, 1/10W resistor (0805) Panasonic ERJ-6ENF51R1V
R60 1 1.0MΩ 5%, 1/16W resistor (0603) Panasonic ERJ-3GEYJ105V
SW1, SW3 2 Switch MOM 4-pin single pole Panasonic EVQPAE04M
SW2 1 Switch 8-position, 16-pin DIP, low profile AMP 435668-7
T1 1 XFMR 16P SMT Pulse TX1099
TP1, TP2 2 Testpoint, 1 plate thru-hole NA NA
TP3–TP10 8 Testpoint, 1 plated hole
DO NOT STUFF NA NA
U1 1 32-bit microcontroller (lab stock) Avnet MMC2107CFCV33
U3, U6 2 SRAM 5V, 1Mb SO (in lab stock) Cypress CY62128V
U4 1 Xilinx Spartan 2.5V FPGA,
20mm x 20mm 144-pin TQFP Xilinx XC2S50-5TQ144C
U5 1 8-Pin μMAX/SO 2.5V or Adj Maxim MAX1792EUA25
U7 1 64-pin LQFP T1/E1/J1 BITS element
(0°C to +70°C)
Dallas
Semiconductor DS26502L
U8, U9, U13 3 High-speed inverter Fairchild NC7SZ86
U10 1 High-speed buffer Fairchild NC7SZ86
U11 1 Dual RS-232 transceivers with 3.3V/5V internal
capacitors Maxim MAX3233E
U12 1 1Mb flash-based config mem Xilinx XCF01SV020C
U14 1 8-pin SO step-up DC-DC converter
0.5A limit Maxim MAX1675EUA
X1 1 Low-profile 8.0MHz crystal PEI EC1-8.000M
Y1 1 Oscillator, crystal clock, 3.3V, 6.312MHz SaRonix NTH069A3-6.312
Y2 1 Oscillator, crystal clock, 3.3V, 2.048MHz SaRonix NTH039A3-2.0480
Y3 1 Oscillator, crystal clock, 3.3V, 1.544MHz SaRonix NTH039A3-1.5440
DS26502DK
BOARD FLOORPLAN GND
VCC
RS232 OnCe JTA
MICROCONTROLLER
SRAM (264KB)
FPGA
DS26502
BITS ELEMENT
DS26502 TESTPOINTS
DS26502
TESTPOINTS
ERRATA The design kit errata refer to two difference PC board revisions: the DS26502DK01A0 and DS26502DK01B0. The
PC board revision code is found on the bottom of the board in the lower right corner.
DS26502DK01A0 Circuit Boards • RCLK did not get connected to FPGA. A jumper wire was run from RCLK to TP10 to provide the connection. • Silkscreen for J3.4 is incorrect. Silkscreen reads “JTDIMMC2107” and should read “JTDOMMC2107.” • RJ45 connector J4 does not use the standard pin numbers for connection to the transformer (and subsequently
to TTIP/TRING and RTIP/RRING). This connector has been left unpopulated to avoid confusion. The
schematic has been updated and is correct. • DC blocking capacitor C4 on TTIP too small. A 10μF capacitor is recommended; a 1μF capacitor was
populated.
DS26502DK01B0 Circuit Boards • RJ45 connector J4 does not use the standard pin numbers for connection to the transformer (and subsequently
to TTIP/TRING and RTIP/RRING). This connector has been left unpopulated to avoid confusion. The
schematic has been updated and is correct.
ADDITIONS The following signals have been connected to Testpoints via the FPGA: • TP6 is driven with data present at the TS_8K_4 pin of the DS26502. • TP7 is driven with the 400Hz signal mentioned in the TS_8Ksrc register (page 15).
CO
FPGA STATUS
& CONFIG
OSCILLATORS
T1, E1, 6312MHZ + BNC
DS26502 LEDs
USER LEDs
PROTOTYPE AREA
SYSTEM LEDs
NETWORK
CONNECTION
NETWORK
CONNECTION
Rx
Tx
DS26502
RESET
SYSTEM
RESET
USER SWITCHES
DS26502DK
BASIC OPERATION This design kit relies upon several supporting files, which are available for downloading on our website at
/telecom. See the DS26502DK QuickView data sheet for these files.
Hardware Configuration • Supply 3.3V to the banana-plug receptacles marked GND and VCC_3.3V. • DIP switches are unused and can be in either the ON or OFF position with exception for the Flash
programming switch, which should be OFF. • From the Programs menu, launch the host application named ChipView.exe. Run the ChipView application. If
the default installation options were used, click the Start button on the Windows toolbar and select Programs →
ChipView → ChipView.
General • Upon power-up the RLOS and RLOF LEDs (red) will be lit, the INT LED (red) will not be lit, and Status LED
(DS10 red/green bicolor) will be green.
Quick Setup (Register View) • The PC will load ChipView offering a choice among DEMO MODE, REGISTER VIEW, and TERMINAL MODE.
Select Register View. • The program will then request a definition file. Select DS26502DC_FPGA.def. Through the ‘links’ section, this
will also load DS26502.def. • The Register View Screen will appear, showing the register names, acronyms, and values for the DS26502. • Predefined Register settings for several functions are available as initialization files. • ini files are loaded by selecting the menu File→Reg ini File→Load ini File. • Load the ini file “CompositeClock.ini.” • Load the ini file “DS26502FPGA_2048Clks.ini,” which sets the DS26502 in Intel nonmultiplexed mode with
MCLK driven at 2.048MHz. • After loading the ini files the following may be observed: • The RLOS and RLOF LEDs extinguishes upon external loopback. • The part begins operating in composite clock mode.
Miscellaneous • Clock frequencies and certain pin bias levels are provided by a register-mapped FPGA. • The definition file for this FPGA is named DS26502DC_FPGA.def. The FPGA register definitions are
located on page 6. A drop-down menu on the top of the screen allows for switching between definition files. • All files referenced above are available for download as described in the section marked “BASIC
OPERATION.”
