Data Sheets - Skyworks Solutions, Inc.

DATA SHEET
SMS7621-060: Surface Mount, 0201 Low-Barrier Silicon
Schottky Diode
Applications
 Sensitive detector circuits
 Sampling circuits
 Mixer circuits
Features
 Low barrier height
 Suitable for use above 26 GHz
 Low parasitic impedance: CP < 0.05 pF, LS < 0.2 nH
 Low profile, ultra-miniature 0201 SMT package
(MSL1, 260 C per JEDEC J-STD-020)
Skyworks GreenTM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of GreenTM, document number
SQ04–0074.
Description
The SMS7621-060 is a silicon, low-barrier N-type Schottky diode
with an ultra-miniature 0201 footprint. This diode can be used in
detector circuits, sampling circuits, and mixer circuits.
The low series resistance of this low-barrier diode enables good
performance as a low-level mixer at frequencies up to 26 GHz
and higher.
A pinout diagram for the SMS7621-060 is shown in Figure 1.
Bottom View
Top View
Y1951
Figure 1. SMS7621-060 Pinout Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201294F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 7, 2015
1
DATA SHEET • SMS7621-060 SCHOTTKY DIODE
Mixer and Detector Applications
24 GHz Detector Design
24 GHz Rat-Race Mixer
A detector circuit that incorporates an SMS7621-060 Schottky
diode and covers the 24 GHz band is shown in Figure 2. The RF
arrives on a 50 Ω microstrip line from the left and is shorted to
GND by a 90 degree line with a stub (GND arrives by a via).
A rat-race mixer that uses two SMS7621-060 Schottky diodes is
shown in Figure 4. The LO signal (24 GHz) is fed from the right
side and reaches a rat-race ring. The diodes are positioned
90 degrees apart from the LO input and are terminated in a stub.
The cathode of the diode is directly connected to a 24 GHz stub.
This output is loaded by a 100 kΩ resistor and a 100 pF
capacitor. The output voltage is fed to a 2-pin, 2.54 mm header.
Both diodes are connected (using a 1206 resistor) and are loaded
by a 470 Ω resistor and a 10 pF capacitor. This forms the IF
output (10 MHz). The RF input (24.010 GHz) is directly connected
to the rat-race ring. A layout design is illustrated in Figure 5.
The circuit was built on a 0.254 mm Rogers RO-4350B substrate
and measured with a power-variable 24 GHz source. A layout
design is illustrated in Figure 3.
Input power versus detected voltage for this detector is shown in
Figure 8.
The mixer has been tested with the following conditions:
LO frequency:
LO power:
RF frequency:
RF power:
24 GHz
0 to +5 dBm
24.010 GHz
–30 dBm
The IF output was loaded with 50 Ω. Measured conversion loss
data for this mixer is shown in Figure 9.
SMS7621-060
Detected Voltage
RF Input
100 kΩ
λ/4
RF Input
λ/4
λ/4
SMS7621-060
λ/4
3λ/4
100 pF
LO Input
λ/4
λ/4
SMS7621-060
λ/4
IF Out
λ/4
Figure 2. Schematic of a 24 GHz Detector Design
100 kΩ
100 pF
Figure 4. Schematic of a 24 GHz Rat-Race Mixer
Figure 3. Layout for a 24 GHz Detector Design
Figure 5. Layout for a 24 GHz Rat-Race Mixer
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
2
May 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201294F
DATA SHEET • SMS7621-060 SCHOTTKY DIODE
Electrical and Mechanical Specifications
Package and Handling Information
The absolute maximum ratings of the SMS7621-060 are provided
in Table 1. Electrical specifications are provided in Table 2. The
associated SPICE model parameters are provided in Table 3.
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
Typical performance characteristics are shown in Figures 6
through 9.
The SMS7621-060 is rated to Moisture Sensitivity Level 1 (MSL1)
at 260 C. It can be used for lead or lead-free soldering. For
additional information, refer to the Skyworks Application Note,
Solder Reflow Information, document number 200164.
Package Dimensions
The PCB layout footprint for the SMS7621-060 is provided in
Figure 10. Package dimensions are shown in Figure 11, and tape
and reel dimensions are provided in Figure 12.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Table 1. SMS7621-060 Series Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Minimum
Maximum
Units
V
Reverse voltage
VR
2
Forward current
IF
50
mA
Power dissipation
PD
75
mW
Storage temperature
TSTG
–65
+200
C
Operating temperature
TA
–65
+150
C
Electrostatic discharge:
ESD
1000
100
30
V
V
V
Charged Device Model (CDM), Class 4
Human Body Model (HBM), Class 0
Machine Model (MM), Class A
Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 2. SMS7621-060 Electrical Specifications (Note 1)
(TA = +25 C, Unless Otherwise Noted)
Minimum Breakdown Voltage
@ IR = 10 μA
(V)
Maximum Total Capacitance
@ VR = 0 V, f = 1 MHz
(pF)
Forward Voltage
@ IF = 1 mA
(mV)
Maximum Series Resistance
(Ω)
2
0.18
260 to 320
12
Note 1: Performance is guaranteed only under the conditions listed in this table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201294F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 7, 2015
3
DATA SHEET • SMS7621-060 SCHOTTKY DIODE
Table 3. SPICE Model Parameters
Parameter
Units
SMS7621-060
IS
A
2.6459E-8
RS
Ω
10.3
N
–
1.01
TT
sec
1E-11
CJO
pF
0.13
M
–
0.35
EG
eV
0.69
XTI
–
2
FC
–
0.5
BV
V
3
IBV
A
1E-5
VJ
V
0.51
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
4
May 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201294F
DATA SHEET • SMS7621-060 SCHOTTKY DIODE
Typical Performance Characteristics @ 25 °C
0.50
10000
0.45
1000
Detected Voltage (mV)
Forward Voltage (V)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
100
10
1
0.1
IF = 0
IF = 5 μA
0.01
0.001
0.05
0
0.0001
0
2
4
6
8
10
–60
–50
Forward Bias Current (mA)
–20
–10
0
+10
Figure 7. Detector Voltage @ 2.45 GHz
(100 kΩ Video Resistance)
10000
16
1000
Conversion Loss (dB)
Output Voltage (mV)
–30
Incident Power (dBm)
Figure 6. Forward Voltage vs Forward Current
100
10
1
–30
–40
–20
–10
0
Input Power (dBm)
Figure 8. Output Voltage vs Input Power
+10
14
12
10
8
6
0
+1
+2
+3
+4
+5
LO Power (dBm)
Figure 9. Conversion Loss vs LO Power
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201294F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 7, 2015
5
DATA SHEET • SMS7621-060 SCHOTTKY DIODE
0.200
0.280
0.400
PCB Pad
Metallization
0.300
Device
Outline
0.100
0.380
PCB Solder
Mask Opening
0.200
0.250
0.300
Device
Outline
Stencil Aperture
S2030
All measurements are in millimeters
Figure 10. SMS7621-060 PCB Layout Footprint
0.0236 ± 0.001 (0.600 ± 0.025 mm)
0.0118 ± 0.001 (0.300 ± 0.025 mm)
Cathode Terminal
(N-Type Device)
0.0089 ± 0.001 (0.226 ± 0.025 mm)
0.0077 ± 0.001 (0.196 ± 0.025 mm)
0.0065 ± 0.001 (0.165 ± 0.025 mm)
N-Type
0.0007 ± 0.0002 (0.0175 ± 0.005 mm)
0.0107 ± 0.001 (0.273 ± 0.030 mm)
Cathode Indicator Must
Match Cathode Terminal
On The Front Side
S1998
Figure 11. SMS7621-060 Package Dimension Drawing
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
6
May 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201294F
DATA SHEET • SMS7621-060 SCHOTTKY DIODE
∅1.50 +0.1/–0.0
4.00 ± 0.01
2.00 ± 0.05
A
3.50 ± 0.05
8.00 +0.3/–0.1
1.75 ± 0.10
C
2.00 ± 0.05
B
A
∅0.20 ± 0.05
B
0.20 ± 0.05
Cathode Indicator
0.38 ± 0.05 (Ao)
0.70 ± 0.05 (Bo)
B
Notes:
1. Carrier tape: black conductive polycarbonate bakeable
material at 125 °C.
2. Cover tape: transparent conductive material.
3. Cover tape size: 5.4 mm width.
4. ESD surface resistivity meets requirements of GP01-D232.
5. All measurements are in millimeters.
C
Scale: 5X
0.35 ± 0.05 (Ko)
A
S2000
Figure 12. SMS7621-060 Tape and Reel Dimensions
Copyright © 2010, 2012, 2015 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by
Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the
information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to
update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or
information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions
of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A
PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY
DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS
SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION,
LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury,
death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any
damages resulting from such improper use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks and the Skyworks symbol are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for
identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by
reference.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201294F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 7, 2015
7