hsdl-3210 Avago Technologies, hsdl-3210 Datasheet - Page 3

• Manufacturer Part Number: hsdl-3210
• Description: Irda Compliant Low Power 1.15 Mbit/s Infrared Transceiver - Agilent Hewlett-packard
• Manufacturer: Avago Technologies

3
Recommended Application Circuit Components
Component
C1
C2
C3
Note:
Serial Interface for Transceiver
Control
The Serial Interface for
Transceiver Control (STC) is used
to control and program the
features of the transceiver. These
features include input/output
(I/O) control, optical power
adjustment and shut down.
Figure 3. General command format.
Table 1. Serial Interface for Transceiver Control – Write Data Format
IrDA Data –data rates
I/O Control
Optical Power Adjustment
1. C1, which is optional, must be placed within 0.7 cm of the HSDL-3210 to obtain optimum noise immunity.
ADDRESS [2-0]
SIR (2.4 to 115.2 Kbps)
MIR (0.576, 1.152 Mbps)
SD Normal Mode
SD Sleep Mode
RXD disable
RXD enable
TXD disable
TXD enable
10% link distance
25% link distance
50% link distance
100% link distance
INDEX [3-0]
Recommended Value
6.8 F, 20%, Tantalum
1.0 F, 20%, Tantalum
0.47 F, 20%, Ceramic
C
Address [2-0]
000
000
000
000
000
000
000
000
000
000
000
000
The STC requires three signals: a
serial clock (SCLK) that is used
for timing, and two unidirectional
lines multiplexed with the
transmitter (write) TXD/SWDAT
and receiver (read) RXD/SRDAT
infrared signal lines.
The HSDL-3210 supports the
write function to disable/enable
the TXD line, disable/enable the
DATA
Index [3-0]
0001
0001
0000
0000
0000
0000
0000
0000
0010
0010
0010
0010
Notes
1
RXD line and 4-level optical
power adjustment.
A set of commands is provided to
handle the programming control
features. The general command
format is shown in Figure 3. The
HSDL-3210 STC Write Data
Commands are shown in Table 1.
C
1
1
1
1
1
1
1
1
1
1
1
1
Data
00000000
00000001
XXXXXXX1
XXXXXXX0
XXXXXX0X
XXXXXX1X
XXXXX0XX
XXXXX1XX
00XXXXXX
01XXXXXX
10XXXXXX
11XXXXXX