HSDL-2300-001 - Agilent / Hewlett-Packard

Infrared IrDA® Compliant

4 Mb/s 3.3 V Transceiver

HSDL-2300

Technical Data

Features

• Fully Compliant to IrDA

1.0/1.1 Specifications

– 115.2 kb/s to 4 Mb/s

Operation

– Excellent Nose-to-Nose

Operation

• Compatible with HP-SIR

and TV Remote

• Backward Compatible to

Slower Speed

• IEC825-Class 1 Eye Safe

• 3.3 V Performance

• Complete Shutdown

– TXD, RXD, PIN Diode

• Low Shutdown Current

– 10 nA Typical

• Adjustable Optical Power

Management

– Adjust LED Drive Current

to Maintain Link Integrity

• Single RX Data Output

– FIR Select Pin Switch to

FIR

• Small 3.3 V Module Package

– Height of 5.5 mm Maximum

• Integrated EMI Shield

– Excellent Noise Immunity

• Minimum Number of Passive

Components

– One RLED Resistor and

Two Bypass Capacitors

• Enhanced Reliability

Performance

• Designed to Accommodate

Light Loss with Cosmetic

Window

• Interfaces to Various Super

I/O and Controller Devices

• Edge Detection Input

– To Prevent LED from

Long Turn-On Time

• Typical Link Distance > 1 m

at 4 Mb/s

Applications

• Data Communication

– Notebook Computers

– Sub-Notebook Computers

– Desktop PCs

– Printers

– Personal Digital Assistance

(PDAs)

– Fax/Photocopiers

• Digital Imaging

– Digital Cameras

– Photo-Imaging Printers

• Industrial and Medical

Instrumentation

– General Data Collection

Devices

– Patient and Pharmaceutical

Data Collection

• IR LANs

Description

The HSDL-2300 is a new

generation 3.3 V power supply

infrared transceiver module that

provides interface between logic

and IR signals for through-air,

serial, half-duplex IR data link.

The module is compliant to IrDA

Physical Layer Specifications

1.0/1.1 and is IEC825-Class 1

Eye Safe.

Package

The HSDL-2300 module consists

of Optical Sub-Assemblies

(OSAs), an Electrical Sub-

Assembly (ESA), and an

integrated EMI shield. There are

two package options: Option

#001 with guide pins, and Option

#002 without guide pins.

Drawings of the two options

package are illustrated in Figure 3

and Figure 4.

New Package Benefits

The new package that consists of

OSAs and ESA with the

combination of integrated EMI

shield utilizes existing in-house

high-volume assembly processes

to ensure high quality and high

volume supply. The integrated

EMI shield helps to ensure low

EMI emission and high immunity

to EMI field, thus enhancing

reliable performance.

Optical Sub-Assemblies

(OSAs)

The Optical Sub-Assemblies

include a Transmitter and a

Receiver.

The Transmitter has a discrete

emitter that utilizes Transparent-

Substrate Aluminium Gallium

Arsenide (TS AlGaAs) LED

technology that offers high-speed

and high optical output efficiency

performance with an integral lens

in a clear molded package.

The Receiver utilizes a discrete

silicon PIN photo-diode with an

integral lens in a molded package

and contains a dye to absorb

visible light. The Receiver lens is

designed such that it magnifies

the effective area of the PIN

photo-diode to enhance

sensitivity. And the PIN photo-

diode and pre-amplifier power

supplies are filtered to attenuate

noise from external sources.

Electrical Sub-Assembly

(ESA)

The Electrical Sub-Assembly

(ESA) consists of a double-sided

printed circuit board on which a

BiCMOS Integrated Circuit (IC)

and various surface-mount

passive circuit elements are

attached. The IC contains an LED

driver and a receiver that

provides a single output channel,

RXD.

Application Information

The Application Engineering

group in Agilent’s

Communications Semiconductor

Solution Division is available to

assist you with the technical

understanding associated with

HSDL-2300 infrared transceiver

module. You can contact them

through your local sales

I/O Pins Configuration Table

Pin Description Symbol

1 LED Anode LEDA

2 Transmitter Data Input TXD

3 Receiver Data Output RXD

4 Ground GND

5 Ground GND

6 Mode 1 MD1

7 Mode 0 MD0

8 FIR Select FIR_SEL

9 Analog Ground AGND

10 Supply Voltage VCC

CAUTION: The BiCMOS inherent to the 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.

Transceiver Control Truth Table

Mode 0 Mode 1 FIR_SEL RX Function TX Function

1 0 X Shutdown Shutdown

0 0 0 SIR Full Distance Power

0 1 0 SIR 2/3 Distance Power

1 1 0 SIR 1/3 Distance Power

0 0 1 MIR/FIR Full Distance Power

0 1 1 MIR/FIR 2/3 Distance Power

1 1 1 MIR/FIR 1/3 Distance Power

X = Don’t Care.

Transceiver I/O Truth Table

Input Output

TXD EI IE (LED) SIR[4] MIR/FIR[5]

VIH X High (On) NV NV

VIL EIH[1] Low (Off) Low[3] NV

VIL EIH[2] Low (Off) NV Low[3]

VIL EILLow (Off) High High

X = Don’t care

NV = Not Valid

Notes:

1. In-band EI ≤ 115.2 kb/s.

2. In-band EI ≥ 0.576 Mb/s.

3. Logic Low is a pulsed response. The condition is maintained for a duration dependent

on pattern and strength of the incident intensity.

4. SIR defined as the data rate from 2.4 kb/s to 115.2 kb/s.

5. MIR/FIR defined as the data rate from 0.576 Mb/s to 4.0 Mb/s.

Figure 1. HSDL-2300 Application Circuit Diagram.

Recommended Application Circuit Components

Component Recommended Value

R1 2.2 Ω, ± 5%, 0.5 Watt, for 3.0 ≤ VCC ≤ 3.6 V operation

CX1[1] 0.47 µF, ± 20%, X7R Ceramic

CX2[2] 6.8 µF, ± 20%, Tantalum

Notes:

1. CX1 must be placed within 0.7 cm of the HSDL-2300 to obtain optimum noise immunity.

2. In environments with noisy power supplies, supply rejection can be enhanced by including CX2 as shown in Application Circuit

Diagram, Figure 1.

3. For interface between 5 V endec and HSDL-2300, level shifters or external protection circuits are recommended at all input pins;

MD0, MD1, TXD, and FIR_SEL.

TXD

GND

RXD

FIR_SEL

1 LEDA

MD0

MD1

4, 5 10 9

CX1

CX2*

AGND

* OPTIONAL

Figure 2. Selection of Resistor R1.

Absolute Maximum Ratings[1]

Parameter Symbol Min. Max. Units Conditions

Storage Temperature TS–20 85 ˚C

Operating Temperature TA070˚C

Average LED Current ILED 100 mA

(DC1)

Average LED Current ILED 165 mA ≤ 90 µs Pulse Width,

(DC2) ≤25% Duty Cycle

Repetitive Pulsed LED ILED 650 mA ≤90 µs Pulse Width,

Current (RP) ≤25% Duty Cycle

Peak LED Current ILED 750 mA ≤2 µs Pulse Width,

(PK) ≤10% Duty Cycle

LED Anode Voltage VLEDA –0.5 7 V

Supply Voltage VCC –0.5 7 V

Transmitter Data ITXD –12 12 mA

Input Current (DC)

Receiver Data VRXD –0.5 VCC+VI

(RXD) = –20 µA

Output Voltage 0.5

Note:

1. For implementations where case to ambient thermal resistance ≤ 50˚C/W.

LED

(A)

0.7

(V)

0.4

3.2 3.6

0.2

0.3

0.6

3.82.8

0.5

3.0 3.4

R1 = 2.2 Ω

Recommended Operating Conditions

Parameter Symbol Min. Max. Units Conditions

Operating TA070˚C

Temperature

Supply VCC 3.0 3.6 V

Voltage

Logic High Input VIH 2 VCC/3 VCC V

Voltage

(TXD, MD0, MD1, FIR_SEL)

Logic Low Input VIL 0V

CC/3 V

Voltage

(TXD, MD0, MD1, FIR_SEL)

Logic High Receiver EIH0.0036 500 mW/cm2For in-band signals

Input Irradiance ≤ 115.2 kb/s[1]

0.0090 500 mW/cm20.576 Mb/s ≤in-band

signals ≤4.0 Mb/s[1]

Logic Low EIL0.3 µW/cm2For in-band signals[1]

Receiver Input

Irradiance

LED (Logic High) ILEDA 400 650 mA

Current Pulse Amplitude

Receiver Signal 2.4 115.2 kb/s

Rate – SIR

Receiver 0.576 4 Mb/s

Signal

Rate – MIR/FIR

Ambient Light See IrDA Serial Infrared

Physical Layer Link

Specification, Appendix A

for ambient levels.

Note:

1. An in-band optical signal is a pulse/sequence where the peak wavelength, λp, is defined as 850 nm ≤ λp ≤ 900 nm, and the pulse

characteristics are compliant with the IrDA Serial Infrared Physical Layer Link Specification.

Electrical and Optical Specifications

Test Conditions represent worst case values for the parameters under test. Specifications hold over the

recommended operating conditions unless otherwise noted. Unspecified test conditions may be anywhere in

their operating range. All values are at 25˚C and 3.3 V unless otherwise noted.

Parameter Symbol Min. Typ. Max. Units Conditions

Receiver Data Logic Low VOL 0 0.4V V IOL (RXD) = 1.0 mA,

Output (RXD)[1] For in-band EI ≥

Voltage 3.6 µW/cm2, θ1/2 ≤ 15˚

Logic High VOH VCC-0.2 VCC VI

OH (RXD) = –20 µA,

(RXD) For in-band EI ≤

0.3 µW/cm2, θ1/2 ≤15˚

Viewing 2θ1/2 30

Angle

Transmitter Logic EIH100 177 mW/sr VIH (TXD) ≥ 2 VCC/3

Radiant High ILEDA = 400 mA,

Intensity Intensity θ1/2 ≤ 15˚

Peak λp 875 nm

Wavelength

Spectral σ λp1/2 35 nm

Line Half

Width

Viewing 2θ1/2 30 60

Angle

Digital Data Logic IL/H –1 1 µA0 ≤ VI ≤ VCC

Input Current Low/High

LED Anode On VON 2.4 V ILEDA = 400 mA,

State Voltage (LEDA) VI (TXD) ≥ 2 VCC/3

LED Anode Off ILK 110µAV

LEDA = VCC = 3.6 V,

State Leakage (LEDA) VI (TXD) ≤ VCC/3

Supply Shutdown ICC1 10 200 nA VCC = 3.6 V

Current

Idle ICC2 2.5 4 mA VCC = 3.6 V,

VI (TXD) ≤ VIL,

EI = 0

Active ICC3 27 30 mA VCC = 3.6 V,

Receiver VI (TXD) ≤ VIL

EI ≤ 500 mW/cm2

Receiver Peak Sensitivity λp 880 nm

Wavelength

Note:

1. Logic Low is a pulsed response. The condition is maintained for a duration dependent on pattern and strength of the incident

intensity.

Switching Specifications

Test Conditions represent worst case values for the parameters under test. Specifications hold over the

recommended operating conditions unless otherwise noted. Unspecified test conditions may be anywhere in

their operating range. All values are at 25˚C and 3.3 V unless otherwise noted.

Parameter Symbol Min. Typ. Max. Units Conditions

Transmitter Radiant tpw 1.5 1.6 1.8 µst

pw (TXD) = 1.6 µs

Intensity Pulse Width (IE) at 115.2 Kpulses/s

148 217 260 ns tpw (TXD) = 217 ns at

1.15 Mpulses/s

115 125 135 ns tpw (TXD) = 125 ns at

2.0 Mpulses/s

Transmitter tr/f 40 ns tpw (TXD) = 125 ns at

Radiant Intensity 2.0 Mpulses/s

Rise and Fall Times

Receiver SIR tpw 2 2.5 3 µs[1]φ1/2 ≤ 15˚

Pulse Width (SIR) CL = 10 pF

Receiver MIR tpw 100 500 ns [4]φ1/2 ≤ 15˚

Pulse Width (MIR) CL = 10 pF

Receiver FIR tpw 85 165 ns [2]φ1/2 ≤ 15˚

Pulse Width (FIR) CL = 10 pF

Receiver ASK tpw 1µs[3]500 kHz/50% duty

Pulse Width (ASK) cycle carrier ASK,

CL = 10 pF

Receiver Rise/Fall tr/f 25 ns CL = 10 pF

Time (RXD)

Receiver Latency tL20 50 µs[1] [2]

Time

Notes:

1. For in-band signals ≤ 115.2 kb/s where 3.6 µW/cm2 ≤ EIL ≤ 500 mW/cm2.

2. For in-band signals, 125 ns PW, 4 Mb/s, 4 ppm at recommended 400 mA drive current.

3. Pulse width specified is the pulse width of the second 500 kHz carrier pulse received in a data bit. The first 500 kHz carrier pulse

may exceed 2 µs in width, which will not affect correct demodulation of the data stream. An ASK and DASK system using the

HSDL-2300 has been shown to correctly receive all data bits for 9 µW/cm2 < EI < 500 mW/cm2 incoming signal strength. ASK or

DASK should use the FIR channel enabled.

4. For in-band signals at 1.15 Mb/s where 9.0 µW/cm2 ≤ EI ≤ 500 mW/cm2.

Figure 3. Package Outline with Dimension and Recommended PC Board Pad Layout.

(Integrated EMI Shield with Guide Pins – Part Number: HSDL-2300#001.)

7.5 ± 0.20 8.8 ± 0.20

1.00

1.05

13.00 ± 0.20

2.80 ± 0.30

9.60 ± 0.30

1.143 BSC

TYP. 0.55

TYP. R 0.15

5.50

± 0.15

0.80 ± 0.15

3.20 ± 0.30

5.30

0.80 ± 0.20

1.00+ 0.15

1.50 ± 0.30

0.51 ± 0.15

1.25

(10X) 0.70

0.97 ± 0.10

2.40 B

2.92

1.143

BSC

5.05

(10X) 2.60

1.05 ± 0.10

1.31 ± 0.10 2.31 ± 0.10

SHIELD

SOLDER PAD

110

NOTES:

1. RECOMMENDED SOLDER STENCIL TO BE 5 TO 6 MILS THICK.

2. LETTER 'A' INDICATES LOCATION OF THROUGH HOLE FOR SHIELD GUIDE PIN.

2. LETTER 'B' INDICATES LOCATION OF SHIELD SOLDERED GROUNDING PAD.

3° ± 3°

GUIDE PINS

11.86 ± 0.10

5.84

R 0.40

4.30

0.59

6.30 ± 0.10

PIN

+ 0.20

Figure 4. Package Outline with Dimension and Recommended PC Board Pad Layout.

(Integrated EMI Shield without Guide Pins – Part Number: HSDL-2300#002.)

7.5 ± 0.20 8.8 ± 0.20

1.00

1.05

13.00 ± 0.20

2.80 ± 0.30

9.60 ± 0.30

1.143 BSC

TYP. 0.55

TYP. R 0.15

5.50

± 0.15

0.80 ± 0.15

3.20 ± 0.30

5.30

0.80 ± 0.20

1.00+ 0.15

1.50 ± 0.30

0.51 ± 0.15

1.25

(10X) 0.70

0.97 ± 0.10

2.40 A

2.92

1.143

BSC

5.05

(10X) 2.60

PIN

1.05 ± 0.10

1.31 ± 0.10 2.31 ± 0.10

SHIELD SOLDER PAD

110

NOTES:

1. RECOMMENDED SOLDER STENCIL TO BE 5 TO 6 MILS THICK.

2. LETTER 'A' INDICATES LOCATION OF SHIELD SOLDERED GROUNDING PAD.

3° ± 3°

+ 0.20

Figure 5. Reflow Profile.

representative for additional

details.

Figure 5 is a straight line

representation of a nominal

temperature profile for a

convective IR reflow solder

process. The temperature profile

is divided into four process zones

with four ∆T/∆time temperature

change rates. The ∆T/∆time

temperature change rates are

detailed in Table 1. The

temperatures are measured at the

component to printed-circuit (pc)

board connections.

In process zone P1, the pc

board and HSDL-2300

castellation I/O pins are heated to

a temperature of 125˚C to

activate the flux in the solder

paste. The temperature ramp up

rate, R1, is limited to 3˚C per

second to allow for even heating

of both the pc board and

HSDL-2300 castellation I/O pins.

Process zone P2 should be of

sufficient time duration to dry the

solder paste. The temperature is

raised to a level just below the

liquidus point of the solder,

usually 170˚C (338˚F).

Process zone P3 is the solder

reflow zone. In zone P3, the

temperature is quickly raised

above the liquidus point of solder

to 230˚C (446˚F) for optimum

results. The dwell time above the

liquidus point of solder should be

between 15 and 90 seconds. It

usually takes about 15 seconds to

assure proper coalescing of the

solder balls into liquid solder and

the formation of good solder

connections. Beyond a dwell time

of 90 seconds, the intermetallic

growth within the solder

connections becomes excessive,

resulting in the formation of weak

and unreliable connections. The

temperature is then rapidly

reduced to a point below the

solidus temperature of the solder,

usually 170˚C (338˚F), to allow

the solder within the connections

to freeze solid.

Process zone P4 is the cool

down after solder freeze. The

cool down rate, R5, from the

liquidus point of the solder to

25˚C (77˚F) should not exceed

–3˚C (26.6˚F) per second

maximum. This limitation is

necessary to allow the pc board

t-TIME (SECONDS)

T – TEMPERATURE – (°C)

200

170

125

100

15 60 90 120 150 195

30 45 75 105 135 165 180 210

150

183

230

P1

HEAT UP P2

SOLDER PASTE DRY P3

SOLDER

REFLOW

P4

COOL DOWN

R3 R4

90 sec. 

MAX.

ABOVE

183°C

Table 1. Reflow Process Zones.

Process Zone Symbol ∆T∆T/∆Time

Heat Up P1, R1 25˚C to 125˚C 3˚C/s max.

Solder Paste Dry P2, R2 125˚C to 170˚C 0.5˚C/s max.

Solder Reflow P3, R3 170˚C to 230˚C (235˚C max.) 4.0˚C/s typ.

P4, R4 230˚C to 170˚C –4.0˚C/s typ.

Cool Down P4, R5 170˚C to 25˚C –3˚C/s max.

Tape and Reel Dimensions

16.00 ± 0.10

(0.630 ± 0.004) 4.00 ± 0.10

(0.157 ± 0.004) 2.00 ± 0.10

(0.079 ± 0.004)

1.50 ± 0.10 (0.059 ± 0.004)

24.00

(

0.945

11.50 ± 0.10

(0.453 ± 0.004)

1.75 ± 0.10

(0.069 ± 0.004)

4.59

(0.181)

7.31 ± 0.10

(0.288 ± 0.004) 13.43 ± 0.10

(0.529 ± 0.004)

7.05 ± 0.10

(0.278 ± 0.004)

8° MAX. 4° MAX.

+ 0.30

- 0.10

+ 0.012

- 0.004

)

4.88

(0.192)

2.60

(0.102)

4.28

(0.169)

1.30

(0.051) 0.356 ± 0.013

(0.0140 ± 0.0005)

DIMENSIONS IN MILLIMETERS (INCHES)

30.4 MAX.

MEASURED

AT HUB

20.2 MIN.

100.0 ± 0.50

1.30 ± 0.20

HUB DIAMETER

(SCROLL START)

24.4 + 2.00

MEASURED

AT HUB

330 MAX.

1.5 MIN.

27.40

23.90 MEASURED AT

OUTER EDGE

DIMENSIONS IN MILLIMETERS

Reel for 24 mm Tape

and HSDL-2300 castellation I/O

pins to change dimensions

evenly, putting minimal stresses

on the HSDL-2300 transceiver.

Appendix A. Test

Methods

A.1 Background Light and

Electromagnetic Field

There are four ambient

interference conditions in which

the receiver is to operate

correctly. The conditions are to

be applied separately:

1. Electromagnetic field: 3 V/m

maximum (please refer to

IEC 801-3, severity level 3 for

details).

2. Sunlight: 10 kilolux maximum

at the optical port. This is

simulated with an IR source

having a peak wavelength

within the range 850 nm to

900 nm and a spectral width

less than 50 nm biased to

provide 490 µW/cm2 (with no

modulation) at the optical

port. The light source faces the

optical port.

This simulates sunlight within

the IrDA spectral range. The

effect of longer wavelength

radiation is covered by the

incandescent condition.

3. Incandescent Lighting:

1000 lux maximum.

This is produced with general

service, tungsten-filament, gas-

filled, inside-frosted lamps in

the 60 Watt to 150 Watt range

to generate 1000 lux over the

horizontal surface on which

the equipment under test rests.

The light sources are above the

test area. The source is

expected to have a filament

temperature in the 2700 to

3050 degrees Kelvin range and

a spectral peak in the 850 nm

to 1050 nm range.

4. Fluorescent Lighting:

1000 lux maximum.

This is simulated with an IR

source having a peak

wavelength within the range

850 nm to 900 nm and a

spectral width of less than

50 nm biased and modulated

to provide an optical square

wave signal (0 µW/cm2

minimum and 0.3 µW/cm2

peak amplitude with 10% to

90% rise and fall times less

than or equal to 100 ns) over

the horizontal surface on

which the equipment under

test rests. The light sources

are above the test area. The

frequency of the optical signal

is swept over the frequency

range from 20 kHz to 200 kHz.

Due to the variety of

fluorescent lamps and the

range of IR emissions, this

condition is not expected to

cover all circumstances. It will

provide a common floor for

IrDA operation.

Appendix B. SMT Assembly Methods

1.0 Solder Pad, Mask and Metal Stencil

All IR transceivers operating under the recommended drive conditions are classified as

CENELEC EN60825-1 Accessible Emission Limit (AEL) Class 1. This standard is in effect in

Europe as of January 1, 1997. AEL Class 1 LED devices are considered eye safe. Please see

Application Note 1094 for more information.

Figure 1.0. Stencil and PCBA.

METAL STENCIL

FOR SOLDER PASTE

PRINTING

LAND PATTERN

PCBA

STENCIL

APERTURE

SOLDER

MASK

Figure 2.0. Top View of Land Pattern.

Figure 3.0. PCBA – Adjacent Land Keep-out and Solder Mask.

1.1 Recommended Land Pattern for HSDL-2300

1.2 Adjacent Land Keep-out and Solder Mask Areas

SHIELD SOLDER PAD

Tx LENS

Rx LENS

theta

10x PAD

DIM. mm INCHES

a

b

c (PITCH)

d

e

f

2.60

0.70

1.14

2.40

1.25

4.22

5.05

0.102

0.027

0.045

0.094

0.049

0.166

0.198

Tx LENSRx LENS DIM. mm INCHES

g

h

k

MIN. 0.15

13.40

7.20

2.10

MIN. 0.006

0.528

0.283

0.083

SOLDER

MASK

LAND k• ADJACENT LAND KEEP-OUT IS THE

MAXIMUM SPACE OCCUPIED BY THE

UNIT RELATIVE TO THE LAND PATTERN.

THERE SHOULD BE NO OTHER SMD

COMPONENTS WITHIN THIS AREA.

• "g" IS THE MINIMUM SOLDER RESIST

STRIP WIDTH REQUIRED TO AVOID

SOLDER BRIDGING ADJACENT PADS.

NOTE: WET/LIQUID PHOTO-IMAGEABLE

SOLDER RESIST/MASK IS RECOMMENDED.

2.0 Recommended Solder

Paste/Cream Volume for

Castellation Joints.

The printed solder paste

volume required per

castellation pad is 0.36 cubic

mm ±15% (based on either no-

clean or aqueous solder cream

types with typically 60 to 65%

solid content by volume).

2.1 Recommended Metal

Solder Stencil Aperture

To ensure adequate printed

solder paste volume, the

following combination of metal

stencil aperture and metal stencil

thickness should be used:

3.0 Pick and Place

Misalignment Tolerance and

Product Self-Alignment after

Solder Reflow

If the printed solder paste volume

is adequate, the HSDL-2300

will self-align after solder

reflow. Units should be properly

reflowed in IR-Hot Air convection

over using the recommended

reflow profile. The direction of

board travel does not matter.

3.1 Tolerance for X-Axis

Alignment of Castellation

Misalignment of castellation to

the land pad should not exceed

0.2 mm or approximately half the

width of the castellation during

placement of the unit. The

castellations will completely self-

align to the pads during solder

reflow.

3.2 Tolerance for Rotational

(theta) Misalignment

Unit when mounted should not be

rotated more than 3˚ with

reference to center X-Y as

specified in Figure 2.0.

See Figure 4.0

t, nominal stencil thickness l, length of aperture

mm inches mm inches

0.127 0.005 3.8 ± 0.1 0.150 ± 0.004

0.152 0.006 3.4 ± 0.1 0.134 ± 0.004

0.203 0.008 2.7 ± 0.1 0.106 ± 0.004

w, the width of aperture is fixed at 0.7 mm (0.028 inches)

Allowable Misalignment Tolerance

x-direction ≤ 0.2 mm (0.008 inches)

theta-direction ± 3˚

Figure 4.0. Solder Paste Stencil Aperture.

APERTURE AS PER

LAND DIMENSIONS

SOLDER PASTE

METAL STENCIL

t (STENCIL THICKNESS)

Unit with theta misalignment of

more than 3˚ does not completely

self-align after reflow. Unit with

3˚ rotational of theta

misalignment self-align

completely after solder reflow.

Figure 5.0. Section of a Castellation in Y-Axis.

0.2

CENTER

OF Y AXIS

3.3 Y-Axis Misalignment of

Castellation

In the y direction, the unit does

not self-align after solder reflow.

This should not be an issue as the

length of the pad (2.6 mm) is

sufficient for a misplacement

accuracy of +/– 0.2 mm from

center of Y-axis as shown in

Figure 5.0. There is still more

than sufficient space for a proper

strong solder fillet to be fully

formed on both sides of the

castellation joints.

www.semiconductor.agilent.com

Data subject to change.

March 14, 2001

Obsoletes 5968-2121E (11/99)

5988-2312EN