Agilent HSDL-3210
IrDA
®
Compliant Low Power
1.15 Mbit/s Infrared
Transceiver
Data Sheet
Description
The HSDL-3210 is one of a new
generation of low-cost Infrared (IR)
transceiver modules from Agilent
Technologies. It features one of the
smallest footprint in the industry at
2.5 H x 8.0 W x 3.0 D mm.
Although the supply voltage can
range from 2.7 V to 3.6 V, the LED
is driven by an internal constant
current source of 60 mA at SIR data
rates and 150 mA at MIR data rates.
The HSDL-3210 incorporates the
capability for adjustable optical
power. The optical power can be
adjusted lower when the nominal
desired link distance is very short.
At 5 cm link distance, only 6% of
the full power is required.
The HSDL-3210 supports the
Serial Interface for Transceiver
Control Specification that
provides a common interface
between the transceiver and
controller. It is also designed to
interface to input/output logic
circuits as low as 1.5 V.
Features
• Fully Compliant to IrDA 1.4 low
power specification from 9.6 kbit/s
to 1.15 Mbit/s
• Ultra small surface mount
package
• Minimal height: 2.5 mm
• V
CC
from 2.7 to 3.6 volts
• Interface to 1.5 volts input/output
logic circuits
• Withstands 100 mV
p-p
power
supply ripple typically
• Adjustable optical power for link
distance from 5 to 20 cm
• Low shutdown current – 10 nA
typical
• Complete shutdown – TxD, RxD,
PIN diode
• Three optional external
components
• Temperature performance
guaranteed, -25°C to 85°C
• Integrated EMI shield
• IEC60825-1 class 1 eye safe
• Edge detection input – Prevents
the LED from long turn on time
Applications
• Mobile telecom
– Cellular phones
– Pagers
– Smart phones
• Data communication
– PDAs
– Portable printers
• Digital imaging
– Digital cameras
– Photo-imaging printers
Application Support Information
The Application Engineering
group in Agilent Technologies is
available to assist you with the
Technical understanding
associated with HSDL-3210
infrared transceiver module. You
can contact them through your
local Agilent sales representatives
for additional details.
Ordering Information
Part Number
HSDL-3210-021
Packaging Type
Tape and Reel
Package
Front View
Quantity
2500
Application Circuit
VLED 8
8
7
6
5
4
3
2
1
C1
6.8 µF
TXD/SWDAT 7
ADJUSTABLE
OPTICAL
POWER
REAR VIEW
RXD/SRDAT 6
Figure 2. Rear view diagram with pin-out.
SHIELD
SD 5
SCLK 4
SERIAL
TRANSCEIVER
CONTROL
V
CC
3
C2
1.0 µF
C3
0.47 µF
I/O V
CC
2
GND 1
Figure 1. Functional block diagram of HSDL-3210.
I/O Pin Configuration Table
Pin
1
2
3
4
5
6
7
Symbol
GND
IOV
CC
V
CC
SCLK
SD
RXD/SRDAT
Description
Ground
Input/Output V
CC
Supply Voltage
Serial Clock
Shut Down Active High
Receiver Data Output.
Active Low
Notes
Connect to system ground.
Connect to ASIC logic controller V
CC
voltage.
Regulated, 2.7 to 3.6 Volts
Use as clock input pin for programming mode. See Table 1 for details.
This pin must be driven either high or low, do NOT float the pin.
Output is a low pulse when a light pulse is received. SRDAT is the read
data for the Serial Transceiver Control (STC). Do NOT float this pin.
Logic High turns on the LED. If held high longer than ~20
µs,
the LED
is turned off. SWDAT is the write data for the Serial Transceiver
Control (STC). Do NOT float this pin.
May be unregulated, 2.7 to 5.5 volts.
Connect to system ground via a low inductance trace. For best
performance, do not connect to GND directly at the part.
TXD/SWDAT Transmitter Data Input/
Serial Write Data
VLED
SHIELD
LED Supply Voltage
EMI Shield
8
-
2
Recommended Application Circuit Components
Component
C1
C2
C3
Recommended Value
6.8
µF, ±
20%, Tantalum
1.0
µF, ±
20%, Tantalum
0.47
µF, ±
20%, Ceramic
Notes
1
Note:
1. C1, which is optional, must be placed within 0.7 cm of the HSDL-3210 to obtain optimum noise immunity.
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.
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
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.
ADDRESS [2-0]
INDEX [3-0]
C
DATA
Figure 3. General command format.
Table 1. Serial Interface for Transceiver Control – Write Data Format
Address [2-0]
IrDA Data –data rates
SIR (2.4 to 115.2 Kbps)
MIR (0.576, 1.152 Mbps)
I/O Control
SD Normal Mode
SD Sleep Mode
RXD disable
RXD enable
TXD disable
TXD enable
Optical Power Adjustment
10% link distance
25% link distance
50% link distance
100% link distance
3
000
000
000
000
0010
0010
0010
0010
1
1
1
1
00XXXXXX
01XXXXXX
10XXXXXX
11XXXXXX
000
000
000
000
000
000
0000
0000
0000
0000
0000
0000
1
1
1
1
1
1
XXXXXXX1
XXXXXXX0
XXXXXX0X
XXXXXX1X
XXXXX0XX
XXXXX1XX
000
000
0001
0001
1
1
00000000
00000001
Index [3-0]
C
Data
Table 2. Serial Interface for Transceiver Control – Read Data Format
Address [2-0]
IrDA Data –data rates
SIR (2.4 to 115.2 Kbps)
MIR (0.576, 1.152 Mbps)
I/O Control
SD Normal Mode
SD Sleep Mode
RXD disable
RXD enable
TXD disable
TXD enable
Optical Power Adjustment
10% link distance
25% link distance
50% link distance
100% link distance
ID
Manufacturer
Product
.
Index [3-0]
0001
0001
0000
0000
0000
0000
0000
0000
0010
0010
0010
0010
1111
1111
C
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Data
00000000
00000001
XXXXXXX0
XXXXXXX1
XXXXXX0X
XXXXXX1X
XXXXX0XX
XXXXX1XX
00XXXXXX
01XXXXXX
10XXXXXX
11XXXXXX
00000001
01000001
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Transceiver I/O Truth Table
STC SD Mode
Normal Mode
SCLK
Low
SD
Low
TXD
High
Low
Sleep Mode
Don’t care
Don’t care
High
Don’t care
Don’t care
LED
On
Off
Off
Off
Receiver
Don’t care
IrDA Signal
No Signal
Don’t care
Don’t care
RXD
Not Valid
Low
High
High
High
6
6
Notes
2,3
4,5
Notes:
2. If TXD is stuck in the high state, the LED will turn off after about 14
µs.
3. RXD will echo the TXD signal while TXD is transmitting data.
4. In-Band IrDA signals and data rates
≤
1.152 Mbps.
5. RXD Logic Low is pulsed response.
6. RXD Logic High during shutdown is a weak pull up (equivalent to an approximately 300 kΩ resistor).
4
Caution:
The BiCMOS inherent to this design of this component increases the component’s
susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static
precautions be taken in handling and assembly of this component to prevent damage and/or
degradation which may be induced by ESD.
Absolute Maximum Ratings
For implementations where case to ambient thermal resistance is
≤50°C/W.
Parameter
Storage Temperature
Operating Temperature
LED Supply Voltage
Supply Voltage
Input/Output Voltage
Input Voltage: TXD, SCLK, SD
Output Voltage: RXD
Symbol
T
S
T
A
V
LED
V
CC
IOV
CC
V
I
V
O
Min.
-40
-25
0
0
0
0
-0.5
Max.
100
85
6.5
6.5
V
CC
V
CC
+ 0.5
V
CC
+ 0.5
Units
°C
°C
V
V
V
V
V
Recommended Operating Conditions
Parameter
Operating Temperature
Supply Voltage
Logic Input Voltage
for TXD ,SCLK, SD
Logic High Receiver
Input Irradiance EIH
Logic High
Logic Low
Symbol Min.
T
A
V
CC
V
IH
V
IL
EI
H
-25
2.7
2/3 IOV
CC
0
0.009
0.0225
Logic Low Receiver Input
Input/Output Voltage
Receiver Data Rate
EI
L
IOV
CC
1.5
0.0024
Max.
85
3.6
IOV
CC
1/3 IOV
CC
500
500
0.3
V
CC
1.152
Units
°C
V
V
V
mW/cm
2
mW/cm
2
µW/cm
2
V
Mb/s
1.5 V
≤
IOV
CC
≤3.6
V
1.5 V
≤IOV
CC
≤3.6
V
For in-band signals
≤115.2kb/s
(SIR)
0.576 Mb/s
≤
in-band
signals
≤
1.15 Mb/s (MIR)
For in-band signals.
7
7
Conditions
Notes
5
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