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PDF CDB8130 Data sheet ( Hoja de datos )
| Número de pieza | CDB8130 | |
| Descripción | Evaluation Board | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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CDB8130
Evaluation Board for CS8130
Features
Description
z Designed to conform to IrDA Physical Layer
Specification
z Interfaces to PC Serial Port
z Operates from +2.7 V to 5.5 V Power Supply
z Includes Evaluation Software
The CDB8130 evaluation board allows fast and easy
evaluation of the CS8130 infrared transceiver. The
board contains an RS-232 level shifter and DB-9 serial
connector to allow easy interfacing to a standard PC se-
rial (COM) port.
Additionally, the board is shipped with a complete set of
diagnostic and test software, as well as the Infrared Data
Association Link Access Protocol (IrLAP) reference
code.
ORDERING INFORMATION
CDB8130
VA+ AGND
DGND
VD+
LEDs
and
PIN
Diode
CS8130
RESET
Circuit
RS-232
Level
Translator
9-Pin
Serial
Connector
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
MAR ‘06
DS170DB5
1 page  
CDB8130
Figure 2. Power Supply Circuitry
1.4 RS-232 Interface
The CDB8130 is designed to connect to any stan-
dard RS-232 port through the female DB-9 connec-
tor marked “RS-232.” The MAX562 (U2) supplies
the voltage level translation function, taking the ±
12V RS-232 levels and translating them to standard
CMOS logic levels.
Table 1 shows the default mapping of UART sig-
nals to CS8130 pins.
Figure 3. Reset Circuit
allows systems using only one LED to operate with
a much higher drive current than can be sourced by
using a single driver. To connect the transmitter
drivers in this way, install jumper J17.
The LED transmitter driver resistors (R3 and R4)
are optimized for a power supply voltage of 3.3V.
For operation at voltages greater than this, the val-
ues of these resistors must be increased.
CS8130 Pin UART Signal
Direction
RXD
RXD
to UART
TXD
TXD
to CS8130
FORM/BSY
CTS
to UART
D/C
DTR
to CS8130
RESET
RTS
to CS8130
Table 1. CS8130-to-UART Connections
1.5 Header Interface
If desired, the RS-232 level translator can be re-
moved from the circuit. The signals are discon-
nected by removing jumpers J5, J6, J7, J8, and J9.
DS170DB5
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CDB8130.PDF ] | |
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