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ZHX3403
MIR UltraSlimTM Transceiver (IrMC)
Preliminary Product Specification
PS011606-0303
ZiLOG Worldwide Headquarters * 532 Race Street * San Jose, CA 95126-3432 Telephone: 408.558.8500 * Fax: 408.558.8300 * www.ZiLOG.com
This publication is subject to replacement by a later edition. To determine whether a later edition exists, or to request copies of publications, contact: ZiLOG Worldwide Headquarters
532 Race Street San Jose, CA 95126-3432 Telephone: 408.558.8500 Fax: 408.558.8300 www.ZiLOG.com
ZiLOG is a registered trademark of ZiLOG Inc. in the United States and in other countries. All other products and/or service names mentioned herein may be trademarks of the companies with which they are associated.
Document Disclaimer
(c)2003 by ZiLOG, Inc. All rights reserved. Information in this publication concerning the devices, applications, or technology described is intended to suggest possible uses and may be superseded. ZiLOG, INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZiLOG ALSO DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. Devices sold by ZiLOG, Inc. are covered by warranty and limitation of liability provisions appearing in the ZiLOG, Inc. Terms and Conditions of Sale. ZiLOG, Inc. makes no warranty of merchantability or fitness for any purpose. Except with the express written approval of ZiLOG, use of information, devices, or technology as critical components of life support systems is not authorized. No licenses are conveyed, implicitly or otherwise, by this document under any intellectual property rights.
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Table of Contents
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC Positive Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SD Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RXD Receive Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TXD Transmit Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDA LED Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TAB Shield Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 3 3 3 3 3 3
Application Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical and Timing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Shutdown and Bandwidth Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ZHX3403 Tape and Reel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ZHX3403 Soldering and Cleaning Recommendations . . . . . . . . . . . . . . . . . . . Reflow Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 10 10 10
Moisture Prevention Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Baking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Mechanical Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Customer Feedback Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Customer Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Return Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Problem Description or Suggestion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 13 13 13 13
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List of Figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. UltraSlim Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ZHX3403 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ZHX3403 Application Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . 4 Shutdown and Bandwidth Control Timing . . . . . . . . . . . . . . . . . . . . . 8 ZHX3403 Reel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ZHX3403 Tape Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Temperature Profile for the Top Surface . . . . . . . . . . . . . . . . . . . . . 10 ZHX3403 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 ZHX3403 Mechanical Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
List of Tables
Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. ZHX3403 Transceiver Pin Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . Receiver Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . Transceiver Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . Shutdown and Bandwidth Control Timing . . . . . . . . . . . . . . . . . . . . . 2 5 5 5 6 7 8
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Description
The ZILOG ZHX3403 for mobile phones, pagers, and PDAs is the smallest, lowest power, and highest functional transceiver in its class. The ZiLOG ZHX3403 features exclusive AlwaysOnTM technology that allows the transceiver to "listen" for an IrDA communication at a typical current of 6 A, allowing the default mode to be left on with negligible effect on the battery life. Once another IrDA device has been discovered, communication takes place at the low receive current consumption of 100 A typically (MIR). The UltraSlim form factor (7.3 mm long x 2.8 mm wide x 1.9 mm high) allows placement in virtually any small device (see Figure 1). Application circuit space is also minimized because only two external components are required.
Figure 1. UltraSlim Form
The ZHX3403 is designed to support IrDA-Data MIR mode, which at 1.15 Mbits/s (10 times typical PDA and mobile telephone solutions) provides enhanced capability for the user to share pictures, MP3 files, PDF files, or other large files. The transceiver combines an IRED emitter, a PIN photodiode, and a unique driver/control ASIC in a single package, as shown in Figure 2.
Figure 2. ZHX3403 Block Diagram
The ZILOG ZHX3403 also features a shutdown control that minimizes current draw to 0.1 mA (typical).
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Features * * * * * * *
Compliant to IrDA Data Specification Low Power MIR (link range: low power to low power--0 to 20 cm; standard power to low power--0 to 30 cm) Low-power supply voltage range: 2.4 to 3.6 V ZHX3403 listening current: only 6 mA (typically) at 3.0 V (ZiLOG exclusive) UltraSlim package: 7.3 mm long x 2.8 mm wide x 1.9 mm high Extended operating temperature range: -30 C to +85 C Internal current source eliminates the need for a current limiting resistor on the IR LED Meets IEC 825-1 Class 1 eye safety specifications
Pin Description
Table 1 lists the pin out for the ZHX3403 transceiver. The pins are described in this section.
Table 1. ZHX3403 Transceiver Pin Out Pin 1 2 3 4 5 6 7 -- Name NC VCC GND SD RXD TXD LEDA TAB Function NC (future use) Supply voltage Ground Shutdown Receiver output Transmitter input IRED anode Shield connection I/O -- -- -- I O I -- --
VCC Positive Supply
(Power) Connect to positive power supply (2.4-3.6 V). Filter with a 1.0 mF ceramic bypass capacitor and terminating resistor as close as possible to the VCC pin.
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GND Ground
(Power) Connect to ground of the power supply. A solid ground plane is recommended for proper operation.
SD Shutdown
(Input, active high) This input is used to place the transceiver into a shutdown mode and to change bandwidth from SIR to MIR (see "Shutdown and Bandwidth Change" on page 8). SD should not be left floating.
RXD Receive Data
(Output, active low) This output provides received serial data. It is a tri-state, slew rate controlled CMOS output (tri-stated during shutdown) driver capable of driving a standard CMOS or LS series TTL load. No external resistor is required.
TXD Transmit Data
(Input, active high) This CMOS input is used to transmit serial data and has an internal pull-down resistor that is enabled during shutdown. With integrated digital AC coupling, no external components are required for input signals between GND and VCC. TXD should not be left floating.
LEDA LED Driver
(Power) This output is internally connected to the LED anode and contains an internal current source. The voltage range on this pad is 2.4-4.2 volts.
TAB Shield Connection
The shield tab must be soldered to ground for proper operation.
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Application Block Diagrams
Figure 3 shows the application block diagrams for the ZHX3403 transceiver.
Figure 3. ZHX3403 Application Block Diagrams
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Electrical and Timing Specifications
Table 2 through Table 6 list the electrical and timing specifications.
Table 2. Absolute Maximum Ratings Parameter Supply voltage Supply voltage Input voltage Storage temperature Solder temperature Symbol VCC VLED VIN TST TSOL Min -0.3 -0.3 GND-0.3 GND-0.3 -40 Max 3.6 4.4 VCC+0.3 VCC+0.3 100 230 Unit V V V V TxD, SD RxD See page 10. Comment VCC, GND
Output (Ext.) voltage VOUT
C C
Table 3. Recommended Operating Conditions Parameter Supply voltage Supply voltage, LEDA Ambient operating temperature Symbol VCC VLED TOP Min 2.4 2.4 -30 Max 3.6 4.2 85 Unit V V
C
Table 4. Receiver Electrical Characteristics Parameter High-level output voltage Low-level output voltage RxD rise/fall time-- SIR RxD pulse width Symbol Condition VOH VOL Tr, Tf tPWA IOH=-100 mA IOL=100 mA Cload=25 pF SIR<115.2 Kbps 1 Min VCC-0.4 0.4 50 5 Typical Max Unit V V ns Remarks RxD RxD 10% and 90% Input pulse=1.6
ms
time<600 ns RxD rise/fall time-- MIR RxD pulse width Tr, Tf tPWA Cload=25 pF MIR=1.152 Mbps 200 220 50 700 ns ns 10% and 90%
ms; rise/fall
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Table 4. Receiver Electrical Characteristics (Continued) Parameter Startup time Latency Minimum input irradiance--SIR Minimum input irradiance--MIR Symbol Condition TSTU TRRT Eemin Eemin VCC=3.3 V VCC=3.3 V VCC=3.3 V 30 Min Typical 300 50 100 9 22.5 500 Max Unit Remarks
ms ms
SIR and MIR
mW/cm2 On axis mW/cm2 On axis
mW/cm2 qh, qv<(+15)
Maximum input Eemax irradiance--SIR and MIR Peak wavelength
lr
870
nm
Unless otherwise noted: VCC=3.3 V, GND=0 V, TA=25 C
Table 5. Transmitter Electrical Characteristics Parameter High-level input voltage Low-level input voltage Transmitter current Transmitter current Startup time LED protection timeout Trans. radiant intensity--SIR Trans. radiant intensity--MIR Peak wavelength Input leakage TxD pin IE IE 3.6 9 870 VIN=0 V, VCC -1 1 Symbol Condition VIH VIL ILED ILED TSTU 40 100 20 50 200 Min 0.75VCC 0.4 65 140 Typical Max Unit V V mA mA Remarks TxD TxD LEDA pin (SIR) LEDA pin (MIR)
ms ms
Protects LED when TxD is left high On axis On axis
72 72
mW/sr mW/sr nm
lr
IIL
mA
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Table 5. Transmitter Electrical Characteristics (Continued) Parameter Optical pulse width Optical rise time Optical fall time TxD pulldown resistor Symbol Condition tOW tOR tOF TxDRP 9.6-115.2 kb/s 9.6-115.2 kb/s 9.6-115.2 kb/s SD=VCC 300K Min Typical 1.39 100 100 Max 30 600 600 Unit Remarks
ms ms ms W
Unless otherwise noted: VCC=3.3 V, GND=0 V, TA=25 C Table 6. Transceiver Electrical Characteristics Parameter High-level input voltage Low-level input voltage Symbol Condition VIH VIL 80 100 6 0.1 Min 0.75VCC 0.4 125 275 10 1.0 200 VIN=0 V, VCC -1 9.6 TLM 30 1 Typical Max Unit V V Remarks SD SD Idle Idle
Receive current--SIR ICC Receive current--MIR ICC Listen current Shutdown current ILIS ISTB IIL
mA mA mA mA ms mA
s
TXD=0/VCC
Power shutdown time TSD Input leakage SD pin Transceiver data rate Delay to listen
1,152 kb/s Time to change between receive and listen modes
Unless otherwise noted: VCC=3.3 V, GND=0 V, TA=25 C
Caution:
To prevent damage and/or degradation that might be induced by electrostatic discharge (ESD), use normal static precautions in handling and assembly of this component.
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Shutdown and Bandwidth Change
Simple power management and bandwidth switching are available by using a method similar to the "Legacy Mode" found in many FIR transceivers. Assertion of the SD pin high places the module into shutdown mode whereby current consumption is reduced to 100 nA (typical). On the falling edge of this signal, the state of the TX pin is sampled and used to set receiver low bandwidth (TX=Low) or high bandwidth (TX=High) mode. The ZHX3403 powers up on with the upper limit of the receiver bandwidth set to 115.2 Kbits/s operation. To set the bandwidth for operation at 1.15 Mbits/s, apply timings as shown in Table 7 and Figure 4 to the SD and the TX inputs. Note: The internal LED driver is disabled when SD is active and is not enabled until the next rising edge of TX. This ensures that the LED is not active during bandwidth adjustment. It is recommended that the SD pin be connected to GND if the bandwidth adjustment and shutdown modes are not required.
Table 7. Shutdown and Bandwidth Control Timing Symbol T1 T2 Tpd Conditions TXD to SD low setup time SD low to TXD hold time SD high to power down Minimum 50 50 200 Unit ns ns s
Figure 4. Shutdown and Bandwidth Control Timing
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ZHX3403 Tape and Reel Specifications
Figure 5 shows the ZHX3403 reel specifications, and Figure 6 shows the ZHX3403 tape specifications.
Figure 5. ZHX3403 Reel Specifications
Figure 6. ZHX3403 Tape Specifications
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ZHX3403 Soldering and Cleaning Recommendations
Follow these recommendations to maintain the performance of the ZHX3403 transceiver.
Reflow Soldering
* * * * *
Reflow soldering paste is recommended. Preheat: 140 C~160 C, 60 to 120 seconds Heating up and cooling down: 5 C/second Maximum number of reflows: 2 The temperature profile at the top surface of the ZHX3403 transceiver, shown in Figure 7, is recommended.
Figure 7. Temperature Profile for the Top Surface
Manual Soldering
* * * *
Use 63/37 or silver solder. Temperature at solder iron tip: no more than 280 C Finish soldering within 3 seconds. Handle only after ZHX3403 has cooled off.
Cleaning
Perform cleaning under the following conditions:
* * *
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Cleaning agent: alcohol Temperature and time 30 seconds below 50 C or 3 minutes below 30 C Ultrasonic cleaning: below 20 W
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Moisture Prevention Guidelines
To avoid moisture absorption during transportation and storage, ZHX3403 reels are packed in aluminum envelopes (see Figure 8) that contain a desiccant with a humidity indicator. While this packaging is an impediment to moisture absorption, it is by no means absolute, and no warranty is implied. The user must store these parts in a controlled environment to prevent moisture entry. Please read the label on the aluminum bag for indicator instructions.
Figure 8. ZHX3403 Packaging
Baking
It is recommended that parts that have been stored over 12 months or unpacked over 72 hours be baked under the following guidelines. Reels 60 C for 48 hours or more Loose Parts
* * *
100 C for 4 hours or more or 125 C for 2 hours or more or 150 C for 1 hour or more
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Mechanical Drawing
Figure 9 shows the mechanical specification for the ZHX3403 transceiver. Note: The ZHX3403 transceiver will be marked as follows (implementation date to be determined): ZHX3403 = Z3403
Figure 9. ZHX3403 Mechanical Drawing
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Ordering Information
Use the following information to order the ZHX3403 transceiver:
ZHX3403MA012THTR with AlwaysOnTM Listen 3500 per reel
Customer Feedback Form
If you experience any problems while operating this product, or if you note any inaccuracies while reading this product specification, please copy and complete this form, then mail or fax it to ZiLOG (see Return Information, below). We also welcome your suggestions!
Customer Information
Name Company Address City/State/Zip Country Phone Fax email
Product Information
Serial # or Board Fab #/Rev # Software Version Document Number Host Computer Description/Type
Return Information
ZiLOG System Test/Customer Support 532 Race Street San Jose, CA 95126-3432 Fax: (408) 558-8300 Email: zservice@zilog.com
Problem Description or Suggestion
Provide a complete description of the problem or your suggestion. If you are reporting a specific problem, include all steps leading up to the occurrence of the problem. Attach additional pages as necessary.
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