dpc-9600 ABACOM Technologies, Inc, dpc-9600 Datasheet - Page 3

• Manufacturer Part Number: dpc-9600
• Description: 9600bps Serial Data Encoder/decoder Chip
• Manufacturer: ABACOM Technologies, Inc

Pin 6– Encoded Data Output
Data received at pin 2 (Data IN) from transmitting
host is encoded by the DPC-9600 and fed out to
the data input pin of the RF transmitter via pin 6.
Pin 7– TX Enable
The TX enable pin is active high and can source
up to 20mA. When the DPC-9600 outputs en-
coded data on the encoded data output pin 6, the
TX enable pin is at a high level and may be used
to enable the RF transmitter module ensuring that
the transmitter is active only for the duration of the
data transmission.
For OOK (AM) type transmitter modules, this pin
may be left unconnected since the data will be
controlling the RF transmission.
Pin 8– Ground
Connect to supply ground.
DPC-9600 Decoding Mode
Pin 1– +5V Supply
This pin should be decoupled to ground with a
0.1uF capacitor.
Pin 2– Encoded Data Input
The data output of the RF receiver module will
feed the encoded data input pin 2 of the DPC-
9600. Valid received encoded data entering the
DPC-9600 at pin 2 will be decoded by the DPC-
9600 and the original data from the transmitting
host will be recovered and made available for out-
put at the DPC-9600 decoded data output pin 5.
Pin 3– No Connection
This pin has no function and may be left uncon-
nected.
Pin 4– Mode
The mode pin configures the DPC-9600 to oper-
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ate as an encoder or as a decoder.
Connected to Vcc configures the DPC-9600 for
data encoding and connected to ground config-
ures the DPC-9600 for data decoding.
Pin 5– Send Data Output
The send data control line is active high. When
taken high, the data received from the transmitting
host will be released to the encoded data output
pin 6. If held low, the data received from the host
will be held in the DPC-9600’s buffer until “send
data” is taken high. The send data control line
functions in association with the data ready pin 7.
Pin 6– Decoded data Output
Encoded data that has been received by the
DPC-9600 from the RF receivers data output will
be decoded by the DPC-9600 and the original se-
rial data that was sent from the transmitting host
will be reproduced at the decoded data output pin
6. This original data will be flow out of pin 6 on
condition that the send data control pin 5 is high.
If the control pin 5 is low, the data output pin 6 will
be inhibited and the data will be held in the DPC-
9600 buffer.
Pin 7– Data Ready Output
When the decoding DPC-9600 has received valid
data, the data ready control line may be used to
signal the receiving host that the DPC-9600 has
valid data ready to upload. The receiving host
then asserts a logic high level on the “send data”
line at pin 5 and the data is uploaded.
Many applications that require the received data
from the DPC-9600 decoder to be uploaded to the
host without supervision, do not require interfac-
ing the data ready control line. For these applica-
tions, the data ready pin 7 may be left uncon-
nected and the send data pin 5 then simply tied
high. In this configuration, the decoded data will
upload to the host automatically.
Pin 8– Ground
Connect to supply ground.