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PDF DS21448DK Data sheet ( Hoja de datos )
| Número de pieza | DS21448DK | |
| Descripción | 3.3V E1/T1/J1 Line Interface Design Kit Daughter Card | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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DS21448DK
3.3V E1/T1/J1 Line Interface Design Kit
Daughter Card
GENERAL DESCRIPTION
The DS21448DK is an easy-to-use evaluation board
for the DS21448 quad E1/T1/J1 LIU. It is intended to
be used as a daughter card with the DK101
motherboard or the DK2000 motherboard. A surface-
mounted DS21448 and careful layout of the analog
signal traces provide maximum signal integrity to
demonstrate the transmit and receive capabilities of
the DS21448. The DK101/DK2000 motherboard and
Dallas’ ChipView software give point-and-click
access to configuration and status registers from a
Windowsâ-based PC. On-board LEDs indicate
interrupt status and receive-carrier loss for all four
ports. The evaluation board provides both RJ45 and
BNC connectors for the line-side transmit and receive
differential pairs on all four ports.
Each DS21448DK is shipped with a free DK101
motherboard. For complex applications, the DK2000
high-performance demo kit motherboard can be
purchased separately.
Windows is a registered trademark of Microsoft Corp.
ORDERING INFORMATION
PART
DS21448DK
DESCRIPTION
DS21448 Design Kit Daughter Card
(with included DK101 Motherboard)
FEATURES
§ Demonstrates Key Functions of the DS21448
Quad LIU
§ Includes Transformers, BNC, and RJ45
Network Connectors and Termination
Passives
§ Compatible with DK101 and DK2000 Demo Kit
Motherboards
§ DK101/DK2000 and ChipView Software
Provide Point-and-Click Access to the
DS21448 Register Set
§ Memory-Mapped FPGA Provides Flexible
Clock and Signal Routing
§ LEDs for Receive-Carrier Loss and Interrupt
§ Easy-to-Read Silk-Screen Labels Identify the
Signals Associated with All Connectors,
Jumpers, and LEDs
DESIGN KIT CONTENTS
DS21448DK Design Kit Daughter Card
DK101 Demo Kit Motherboard
CD-ROM
ChipView Software
DS21448DK Data Sheet
DS21448 Data Sheet
DK101 Data Sheet
DS21448 Errata Sheet
www.DataSheet4U.com
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1 page  
DS21448DK 3.3V E1/T1/J1 Line Interface Design Kit
Control Registers
The control registers are used set the clock frequency on the MCLK and TCLK pins. Options are 1.544MHz,
2.048MHz, external source (through AUX CLK BNC), and tri-state.
MCLK_SRC: MCLK SOURCE (OFFSET = 0x0011) INITIAL VALUE = 0x1
(MSB)
—
—
(LSB)
—
—
HI_Z
EXTOSC 2048MHZ 1544MHZ
NAME
HI_Z
EXTOSC
2048MHZ
1544MHZ
POSITION
MCLK_SRC.3
MCLK_SRC.2
MCLK_SRC.1
MCLK_SRC.0
FUNCTION
1 = Tri-state MCLK.
1 = Connect MCLK to the external oscillator.
1 = Connect MCLK to the 2.048MHz clock.
1 = Connect MCLK to the 1.544MHz clock.
TCLK1_SRC: TCLK SOURCE (OFFSET = 0x0012) INITIAL VALUE = 0x1
(MSB)
—
—
(LSB)
—
—
HI_Z
EXTOSC 2048MHZ 1544MHZ
NAME
HI_Z
EXTOSC
2048MHZ
1544MHZ
POSITION
TCLK1_SRC.3
TCLK1_SRC.2
TCLK1_SRC.1
TCLK1_SRC.0
FUNCTION
1 = Tri-state TCLK1.
1 = Connect TCLK1 to the external oscillator.
1 = Connect TCLK1 to the 2.048MHz clock.
1 = Connect TCLK1 to the 1.544MHz clock.
TCLK2_SRC: TCLK SOURCE (OFFSET = 0x0013) INITIAL VALUE = 0x1
(MSB)
—
—
(LSB)
—
—
HI_Z
EXTOSC 2048MHZ 1544MHZ
NAME
HI_Z
EXTOSC
2048MHZ
1544MHZ
POSITION
TCLK2_SRC.3
TCLK2_SRC.2
TCLK2_SRC.1
TCLK2_SRC.0
FUNCTION
1 = Tri-state TCLK2.
1 = Connect TCLK2 to the external oscillator.
1 = Connect TCLK2 to the 2.048MHz clock.
1 = Connect TCLK2 to the 1.544MHz clock.
TCLK3_SRC: TCLK SOURCE (OFFSET = 0x0014) INITIAL VALUE = 0x1
(MSB)
—
—
(LSB)
—
—
HI_Z
EXTOSC 2048MHZ 1544MHZ
NAME
POSITION
HI_Z
TCLK3_SRC.3
EXTOSC
TCLK3_SRC.2
www.D2a0ta4S8hMeHetZ4U.com TCLK3_SRC.1
1544MHZ
TCLK3_SRC.0
FUNCTION
1 = Tri-state TCLK3.
1 = Connect TCLK3 to the external oscillator.
1 = Connect TCLK3 to the 2.048MHz clock.
1 = Connect TCLK3 to the 1.544MHz clock.
5 of 17
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© 2003 Maxim Integrated Products · Printed USA
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| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet DS21448DK.PDF ] | |
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