Skyworks Solutions, Inc. [781] 376-3000 •Fax [781] 376-3100 •Email sales@skyworksinc.com •www.skyworksinc.com 1
Specifications subject to change without notice. 8/01A
Silicon Limiter Diode Chips
Features
■Established Skyworks’ Limiter Diode
Process
■High Power, Mid-range and Clean-up
Designs
■Low Insertion Loss (0.1 dB at 10 GHz)
■Power Handling to 66 dBm
■Tight Control of Basewidth
■Mesa and Planar Chip Designs
Description
Skyworks’ CLA series of silicon limiter diode chips provides
passive receiver protection over a wide range of
frequencies from 100 MHz to beyond 30 GHz. These
devices utilize Skyworks’ well established silicon
technology for high resistivity and tightly controlled thin
base width PIN limiter diodes. Limiter circuits employing
these devices will perform with strong limiting action and
low loss.
The CLA series consists of eight individual chip designs
of different intrinsic region basewidths and capacitances
designed to accommodate multi-stage limiter applications.
The mesa constructed, thin basewidth, low capacitance
CLA4601-000, CLA4602-000, CLA4604-000 and
CLA4605-000 are designed for low level and clean-up
applications. The CLA4603-000, CLA4606-000 through
CLA4608-000 are planar designs designated for high
power and mid-range applications.
CLA Series
Characteristic Value
Power Dissipation
Pdiss
= W
For CW Signals θ= θave
For Pulsed Signals θ= DF x θave + θpulse
(θp @1 µS x Normalized
θp from Figure 2)
Operating Temperature -65°C to +175°C
Storage Temperature -65°C to +200°C
Absolute Maximum Ratings
175-
Tamb
θ
0.010 (0.254 mm) MIN.
0.014 (0.356 mm) MAX. SQ.
ANODE METALIZED GOLD DOT
0.002 (0.051 mm) DIA. MIN.
CATHODE METALIZED BACK
CONTACT - GOLD
SILICON
0.004 (0.127 mm) MIN.
0.006 (0.152 mm) MAX.
ANODE
METALIZED
GOLD DOT
SILICON
CATHODE METALIZED BACK
CONTACT GOLD
0.004 (0.127 mm) MIN.
0.006 (0.152 mm) MAX.
0.010 (0.251 mm) MIN.
0.014 (0.356 mm) MAX. SQ.
150-801:
0.002 (0.051 mm) MIN.
150-806:
0.0011 (0.028 mm) MIN.
Outline Drawings
149-801
150 Series
Silicon Limiter Diode Chips CLA Series
2Skyworks Solutions, Inc. [781] 376-3000 •Fax [781] 376-3100 •Email sales@skyworksinc.com •www.skyworksinc.com
Specifications subject to change without notice. 8/01A
Typical Performance at 25°C
Part Insertion Loss Input Power Maximum Output at Maximum Recovery
Number @ -10 dBm for 1 dB Loss Pulsed Input Power Max. Pulsed Input CW Input Power Time
(dB) (dBm) (dBm) (dBm) (W) (nS)
CLA4601-000 0.1 7 47 21 2 5
CLA4602-000 0.1 7 50 24 3 5
CLA4603-000 0.1 10 50 22 2 10
CLA4604-000 0.1 12 47 24 3 10
CLA4605-000 0.1 12 50 27 4 10
CLA4606-000 0.1 15 53 27 3 20
CLA4607-000 0.1 20 60 39 6 50
CLA4608-000 0.2 20 66 44 15 100
1. Insertion loss for CLA4601-000 through CLA4607-000 at 10 GHz;
insertion loss for CLA4608-000 at 5 GHz.
2. Limiter power results at 1 GHz for shunt connected single limiter diode and
DC return in 50 Ωline.
Pulse Width (Sec.)
Normalized to 1 µS
Figure 2
Normalized Pulsed Thermal Impedance
1
10
100
1.00E-06 1.00E-04 1.00E-02 1.00E+00
CLA4601/2
CLA4603/4/5
CLA4606
CLA4607
CLA4608
Input Power (dBm)
Figure 1
Typical Peak Leakage Power at 1 GHz
Output Power (dBm)
0 10203040506066
0
10
20
30
40
50
CLA4603
CLA4606
CLA4607
CLA4604
CLA4601
3. Maximum pulsed power for 1 µS pulse and 0.1% duty factor with chip at
25°C heat sink. Derate linearly to 0 W at 175°C.
4. Maximum CW input power at 25°C heat sink. Derate linearly to 0 W at 175°C.
5. Recovery time to insertion loss from limiting state.
Electrical Specifications at 25°C
1. Capacitance, CJ, measured at 1 MHz.
2. Resistance, RS, measured at 100 MHz.
3. CW thermal resistance for infinite heat sink.
4. Pulse thermal resistance for single 1 µS pulse.
Breakdown RS@T
L@ Thermal Impedance (θ) Top Contact
Part Voltage Basewidth CJ@ 0 V 10 mA 10 mA Average 1 µµSDiam. Outline
Number (V) (µµm) (pF) (ΩΩ) (nS) (°C/W) Pulse (°C/W) (mils/mm) Drawing
Min. – Max. Nominal Max. Max. Typ. Max. Typ. Typ.
CLA4601-000 15–30 1.0 0.15 2.5 5 120 15 1.2/0.030 150-806
CLA4602-000 15–30 1.0 0.2 2.0 5 80 10 1.5/0.038 150-806
CLA4603-000 20–45 1.5 0.2 2.0 5 100 10 1.5/0.038 149-801
CLA4604-000 30–60 2.0 0.15 2.5 7 100 10 1.5/0.038 150-806
CLA4605-000 30–60 2.0 0.2 2.0 7 70 7.0 2.5/0.064 150-801
CLA4606-000 45–75 2.5 0.2 2.0 10 80 7.0 2.5/0.064 150-801
CLA4607-000 120–180 7.0 0.2 2.0 50 40 1.2 3.0/0.076 149-801
CLA4608-000 120–180 7.0 0.6 1.2 100 15 0.3 5.0/0.127 149-801
