Agilent HSDL-3003 IrDA® Data Compliant Low Power 115.2 kbit/s with Remote Control Infrared Transceiver
Data Sheet
Description The HSDL-3003 is a small form factor enhanced infrared (IR) transceiver module that provides the capability of (1) interface between logic and IR signals for through-air, serial, half-duplex IR data link, and (2) IR remote control transmission operating at the optimum 940 nm wavelength for universal remote control applications. For IR data communication, the HSDL-3003 provides the flexibility of low power SIR applications and remote control applications with no external components needed for the selection of the type of application. The transceiver is compliant to IrDA® Physical
IrDA® Data Features • Fully compliant to IrDA® Physical Layer Specification 1.4 low power from 9.6 kbit/s to 115.2 kbit/s (SIR) – Excellent nose-to-nose operation www.DataSheet4U.com – Link distance up to 50 cm typically • Complete shutdown for TxD_IrDA, RxD_IrDA, and PIN diode • Low power consumption – Low idle current, 50 µA typically – Low shutdown current, 10 nA typically • LED stuck-high protection Applications • Mobile data communication and universal remote control transmission – Personal digital assistants (PDAs) – Mobile phones
General Features • Guaranteed temperature performance, –20° to 70°C – Critical parameters are guaranteed over temperature and supply voltage • Low power consumption • Small module size – Height: 2.70 mm – Width: 8.00 mm – Depth: 2.95 mm • Minimum external components – Integrated single-biased LED resistor – Direct interoperability to MPU – Programmable Txd features – Integrated remote control FET • Withstands >100 mVp-p power supply ripple typically • VCC supply 2.4 to 3.6 volts • Integrated EMI shield • Designed to accommodate light loss with cosmetic windows • IEC 825-Class 1 eye safe Remote Control Features • Wide angle and high radiant intensity • Spectrally suited to remote control transmission function at 940 nm typically • Typical link distance up to 8 meters
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.
Layer Specification Version 1.4 Low Power from 9.6 kbit/s to 115.2 kbit/s (SIR) and it is IEC 825-Class 1 Eye Safe. The HSDL-3003 has very low idle current and can be shutdown completely to achieve very low power consumption. In the
shutdown mode, the PIN diode will be inactive and thus producing very little photocurrent even under very bright ambient light. Such features are ideal for battery operated handheld products such as PDAs and mobile phones.
Order Information Part Number HSDL-3003-021 Packaging Type Tape and Reel Package Front View Quantity 2500
Marking Information The unit is marked with ‘yyww’ on the shield yy = year ww = work week
VCC
CX2
GND
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VCC (6)
CX1
GND (8)
REAR VIEW
HSDL-3003 TRANSCEIVER MODULE TRANSCEIVER IC
VOLTAGE/ CURRENT REFERENCE BLOCK SHUTDOWN
PRE AMP
8
7
6
5
4
3
2
1
RECEIVER RxD_IrDA (4) VLED CX3 R1 LEDA (1) SD (5) TxD_RC (7) TxD_IrDA (3)
RC/IR TRANSMITTER SELECT EYE SAFETY -RC
OUTPUT BUFFER
PHOTODETECTOR
DETECTOR
SHIELD
SHUTDOWN
RC_BUFFER IR_BUFFER
EYE SAFETY -IR
RC_LED
TRANSMITTER
IR_LED
Figure 1. Functional block diagram of low power IrDA link distance and remote control.
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I/O Pins Configuration Table Pin 1 2 3 Symbol LEDA N.C. TxD_IrDA I/O I – I Description IR and Remote Control LED Driver No Connection IrDA Transmitter Data Input. Active High IrDA Receiver Data Output. Active Low Shutdown. Active High Supply Voltage Remote Control Transmission Input. Active High Connect to System Ground EMI Shield Notes Tied through external resistor, R1, to VLED from 2.4 to 4.5 Volt No Connection Logic high turns on the IrDA LED. If held HIGH longer than ~50 µs, the IrDA LED is turned off. TxD_IrDA must be driven either HIGH or LOW. Do not leave the pin floating Output is at LOW pulse response when light pulse is seen Complete shutdown TxD_IrDA, RxD_IrDA, and PIN diode. Do not leave the pin floating Regulated, 2.4 to 3.6 Volt Logic high turns on the RC LED. If held HIGH longer than ~50 µs, the RC LED is turned off. TxD_RC must be driven either HIGH or LOW. Do not leave the pin floating Tie this pin to system ground Tie to system ground via a low inductance trace. For best performance, do not tie it to the HSDL-3003 GND pin directly
4 5 6 7
RxD_IrDA SD VCC TxD_RC
O I I I
8 –
GND Shield
I –
Recommended Application Circuit Components Component R1 Recommended Value
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1.8 Ω ± 5%, 0.25 Watt for 2.4 ≤ VLED ≤ 2.7 V 2.7 Ω ± 5%, 0.25 Watt for 2.7 ≤ VLED ≤ 3.3 V 3.3 Ω ± 5%, 0.25 Watt for 3.0 ≤ VLED ≤ 3.6 V 4.7 Ω ± 5%, 0.25 Watt for 3.6 ≤ VLED ≤ 4.5 V
CX1[1] CX2[2] CX3
0.47 µF ± 20%, X7R Ceramic 6.8 µF ± 20%, Tantalum 6.8 µF ± 20%, Tantalum
Notes: 1. CX1 must be placed within 0.7 cm of HSDL-3003 to obtain optimum noise immunity. 2. The supply rejection performance can be enhanced by including CX2, as shown in Figure 1, in environment with noisy power supplies.
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Different Remote Control Configurations for HSDL-3003 The HSDL-3003 can operate in the single-TXD programmable mode or the two-TXD direct transmission mode. Single-TXD Programmable Mode In the single-TXD programmable mode, only one input pin (TxD_IrDA input pin) is used to
turn on either the 875 nm LED or the 940 nm LEDs while the TxD_RC input pin is grounded. The transceiver is in default mode (IrDA) when powered up. User needs to apply the following programming sequence to both the TxD_IrDA and SD inputs to enable the transceiver to operate in either the IrDA or remote control mode.
tC tTL tA tB tC
SHUTDOWN (ACTIVE HIGH)
TxD_IrDA (ACTIVE HIGH)
• • •
• • •
• • •
SHUTDOWN
DRIVE IrDA LED
RC MODE
DRIVE RC LED
RESET
DRIVE IrDA LED
TxD_RC (GND)
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Figure 2.
Two-TXD Direct Transmission Mode In the two-TXD direct transmission mode, the 875 nm LED and the 940 nm LEDs are turned on separately by two different input pins. The TxD_IrDA input pin is used to turn on the 875 nm LED while the TxD_RC input pin is used to turn on the 940 nm LEDs. Please refer to the Transceiver I/O truth table for more details.
Transceiver Control I/O Truth Table for Two-TXD Direct Transmission Mode SD 0 0 0 0 1 TXD_IrDA 0 0 1 1 0 TXD_RC 0 1 0 1 0 IrDA LED OFF OFF ON DIM OFF RC LEDs OFF ON OFF ON OFF Remarks IR Rx enabled. Idle mode Remote control operation IrDA Tx operation Not recommended Shutdown mode*
* The shutdown condition will set the transceiver to the default mode (IrDA).
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Absolute Maximum Ratings at TA = 25°C For implementations where case to ambient thermal resistance is ≤ 50°C/W Parameter Storage Temperature Operating Temperature LED Supply Voltage Supply Voltage Output Voltage: RxD Total LED Current Pulse Amplitude IR LED Current Pulse Amplitude RC LED Current Pulse Amplitude Symbol TS TA VLED VCC VO IVLED (IVLED)IR (IVLED)RC Min. -40 -20 0 0 0 Max. 100 70 6 6 6 580 280 580 Units °C °C V V V mA mA mA ≤ 90 µs Pulse Width ≤ 20% Duty Cycle ≤ 90 µs Pulse Width ≤ 20% Duty Cycle ≤ 90 µs Pulse Width ≤ 20% Duty Cycle Conditions
Recommended Operating Conditions Parameter Operating Temperature Supply Voltage LED Supply Voltage Logic Input Voltage for TxD_IrDA, TxD_RC Receiver Input Irradiance Logic High Logic Low Logic High Logic Low Symbol TA VCC VLED VIH VIL EIH EIL tTPW(SIR) 1.5 9.6 Min. -20 2.4 2.4 2/3 VCC 0 0.0081 Max. 70 3.6 4.5 VCC 500 0.3 1.6 115.2 Units °C V V V mW/cm2 µW/cm2 µs kbit/s For in-band signals ≤ 115.2 kbit/s[3] For in-band signals[3] Conditions
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1/3 VCC V
TxD_IrDA Pulse Width (SIR) Receiver Data Rate
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Electrical and Optical Specifications Specifications (Min. and Max. values) hold over the recommended operating conditions unless otherwise noted. Unspecified test conditions may be anywhere in their operating range. All typical values (Typ.) are at 25 °C with V CC at 3.0 V unless otherwise noted. Parameter Infrared (IrDA) Receiver Viewing Angle Peak Sensitivity Wavelength RxD_IrDA Output Voltage Logic High Logic Low 2θ1/2 λP VOH VOL tRPW tr, tf tL tRW IEH 2θ1/2 λP VIH VIL IH IL IVLED tTW tA tB tC tPW(Max) tr, tf VON (LEDA) IEH 2θ1/2 λP VIH VIL IH IL tPW(Max) VON (LEDA) 1.65 2/3 VCC 0 0.02 -0.02 High Low High Low 15[9] 30 940 VCC 1/3 VCC 1 1 120 2.3 2.4 36 60 25 25 75 120 600 2/3 VCC 0 0.02 -0.02 0.02 180 High Low High Low Shutdown 4 30 875 VCC 1/3 VCC 1 1 10 500 VCC - 0.2 0 1 2.3 30 26 75 13 60 30 875 VCC 0.4 7.5 100 50 200 ° nm V V µs ns µs µs θ1/2 ≤ 15°, CL= 9 pF CL= 9 pF EI = 9.0 µW/cm2 EI = 10 mW/cm2 IOH = -200 µA, EI ≤ 0.3 µW/cm2 Symbol Min. Typ. Max. Units Conditions
RxD_IrDA Pulse Width (SIR)[4] RxD_IrDA Rise & Fall Times Receiver Latency Time[5] Receiver Wake Up Time[6] Infrared (IrDA) Transmitter IR Radiant Intensity IR Viewing Angle IR Peak Wavelength TxD_IrDA Logic Levels TxD_IrDA Input Current LED Current Wake Up Time[7] Data setup time Data pulsewidth Programming time Maximum Optical Pulse Width[8] TxD Rise & Fall Times (Optical) LED Anode On-State Voltage RC Radiant Intensity RC Viewing Angle RC Peak Wavelength TxD_RC Logic Levels TxD_RC Input Current
mW/sr IVLEDA = 100 mA, θ1/2 ≤ 15°, TxD_IrDA ≥ VIH, TA = 25°C ° nm V V µA µA µA ns ns ns ns µs ns V IVLEDA = 100 mA, VI (TxD) ≥ VIH VI ≥ VIH 0 ≤ VI ≤ VIL VI (SD) ≥ VIH
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Remote Control (RC) Transmitter mW/sr IVLEDA = 400 mA, θ1/2 ≤ 15°, TxD_RC ≥ VIH, TA = 25°C ° nm V V µA µA µs V ILEDA = 400 mA, VI(TxD) ≥ VIH VI ≥ VIH 0 ≤ VI ≤ VIL
Maximum Optical Pulse Width [8] LEDA Voltage
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Transceiver Parameters Inp
