DATA SHEET CLA Series: Silicon Limiter Diodes and Ceramic Hermetic Packaged Devices Applications LNA receiver protection Commercial and defense radar Features Established limiter diode process High power, mid-range, and cleanup designs Low insertion loss:. db @ GHz Peak power handling to +74 dbm Ultra low spike leakage power Tight control of I layer base width Description The Isolink CLA series of silicon limiter diodes provides passive receiver protection over a wide range of frequencies from MHz to over GHz. These devices use a well-established silicon technology resulting in high resistivity and tightly controlled base width PIN limiter diodes. Limiter circuits using these devices perform with strong limiting action and low loss. The CLA series consists of ten individual chip designs of different intrinsic region base widths and capacitances designed to accommodate multi-stage limiter applications. The mesa-constructed, thin base width, low capacitance CLA46 series, CLA46 series, CLA464 series, and CLA465 series are designed for low-level and cleanup applications. The CLA463 series, CLA466 series, CLA467 series, CLA468 series and CLA46 series are planar designs designated for high-power and mid-range applications. The CLA469 series thick base width mesa diode is designed for coarse limiter-stage applications. The absolute maximum ratings of the CLA diode series are provided in Table. Electrical specifications are specified in Table. Typical performance characteristics are provided in Table 3 and Figures through 4. 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7
Table. CLA Series Absolute Maximum Ratings Power dissipation Parameter Symbol Minimum Typical Maximum Units PDIS Maximum TJ Case Temp Thermal Re sistance junction to case Reverse voltage VR Minimum rated breakdown voltage V Forward current IF ma Junction temperature TJ 65 +75 C Storage temperature TSTG 65 + C Electrostatic discharge: Charged Device Model (CDM), Class 4 Human Body Model (HBM), Class C Machine Model (MM), Class A 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. 5 W V V V ESD HANDLING: 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 when handling or transporting. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD handling precautions should be used at all times. Table. CLA Series Electrical Specifications, ( of ) Part Number Breakdown Voltage (V) I Region (μm) Total Capacitance (CT) @ V (pf) Total Capacitance (CT) @ 6 V (pf) Series Resistance (RS) @ ma (Ω) Minority Carrier Lifetime (TL) @ ma (ns) Thermal Resistance (θ) 3 Average ( C/W) Min to Max Nominal Typical Maximum Typical Typical Maximum CLA46-3 5 to 3..37.35. 5 5 CLA46-5 to 3..37.35. 5 4 CLA46-9 5 to 3..37.35. 5 CLA46-4 5 to 3..37.35. 5 CLA46-3 5 to 3..45.4.5 5 CLA46-5 to 3..45.4.5 5 CLA46-9 5 to 3..45.35.5 5 6 CLA46-4 5 to 3..45.4.5 5 6 CLA463-3 to 45.5.45.35.5 5 3 CLA463- to 45.5.45.4.5 5 CLA463-9 to 45.5.45.4.5 5 8 CLA463-4 to 45.5.45.35.5 5 8 CLA464-3 3 to 6..37.3. 7 3 CLA464-3 to 6..37.35. 7 CLA464-9 3 to 6..37.3. 7 6 CLA464-4 3 to 6..37.3. 7 8 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7
Table. CLA Series Electrical Specifications, ( of ) Part Number Breakdown Voltage (V) I Region (μm) Total Capacitance (CT) @ V (pf) Total Capacitance (CT) @ 6 V (pf) Series Resistance (RS) @ ma (Ω) Minority Carrier Lifetime (TL) @ ma (ns) Thermal Resistance (θ) 3 Average ( C/W) Min to Max Nominal Typical Maximum Typical Typical Maximum CLA465-3 3 to 6..45.3.5 7 CLA465-3 to 6..45.4.5 7 9 CLA465-9 3 to 6..45.4.5 7 5 CLA465-4 3 to 6..45.35.5 7 5 CLA466-3 45 to 75.5.45.35.5 CLA466-45 to 75.5.45.4.5 CLA466-9 45 to 75.5.45.4.5 6 CLA466-4 45 to 75.5.45.35.5 6 CLA467-3 to 8 7..45.35 @ 38 V.5 5 7 CLA467- to 8 7..45.4 @ 38 V.5 5 6 CLA467-9 to 8 7..45.4 @ 38 V.5 5 CLA467-4 to 8 7..45.35 @ 38 V.5 5 CLA468-3 to 8 7..85.75 @ 38 V.5 45 CLA468- to 8 7..85.75 @ 38 V.5 35 CLA468-9 to 8 7..85.7 @ 38 V.5 CLA468-4 to 8 7..85.7 @ 38 V.5 CLA469-3 5 (Min)..5.4. 75 45 CLA469-5 (Min)..5.45. 75 35 CLA469-9 5 (Min)..5.4. 75 CLA469-4 5 (Min)..5.4. 75 CLA46-3 8 to 4.5.38.4.7 8 CLA46-8 to 4.5.38.45.7 8 CLA46-9 8 to 4.5.38.4.7 5 CLA46-4 8 to 4.5.38.4.7 63 Performance is guaranteed only under the conditions listed in this table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated temperatures may reduce reliability of the device. TOP = +5 C, CJ measured at MHz, RS measured at 5 MHz, CW thermal resistance for infinite heat sink, unless otherwise noted. 3 Thermal resistance is calculated from the measured power dissipation @ f =.6 GHz, TJ max = 75 C and TCASE = 85 C 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7 3
Table 3. Typical Performance @ 5 C @.6 GHz, Z = 5 Ω Part Number Insertion Loss @ dbm (db) CW Input Power for db Insertion Loss (dbm) Maximum CW Input Power (dbm) Maximum Pulsed Input Power (dbm) Output @ Maximum Pulsed Input (dbm) Recovery Time (ns) 3 Spike Leakage (ergs) 4 CLA46. 36 65 5 Note 5 CLA46. 36 65 4 5 Note 5 CLA463. 38 67 5 Note 5 CLA464. 4 7 4 5 Note 5 CLA465. 4 7 7 5.8 CLA466. 4 4 7 7 5.3 CLA467. 6 43 73 39 5. CLA468. 6 43 73 44 5.5 CLA469.3 37 44 74 5 5 5.77 CLA46. 4 4 57 3 5 Note 5 Diode chip is mounted on a.5 oz Cu PC board using to mils of conductive epoxy. Bond wire connections are made with.8 mil Au wire. Limiter configured with shunt connected diode and nh ground return and pf DC blocking capacitors. Pulsed power measurements taken at μs pulse width, @ f = KHz, and.% duty cycle. 3 Recovery time represents the transition time from the high-loss state to the low-loss state following the removal of a high-power input. It is defined as the time from the end of the highpower pulse to the time when insertion loss has returned to within 3 db of the quiescent (low-power) state. 4 Spike Leakage (ergs) = ts x Ps x 7 where ts is the spike width at the half-power point (in seconds) and PS is the maximum spike amplitude in watts. 5 Not detectable under current test conditions described in Note. 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7 4
Typical Performance Characteristics (Tested at 5 C, Board and Connector Loss Are Not De-Embedded) Output Power (dbm) 5 CLA46 CLA46 CLA463 5 CLA464 CLA465 CLA466 5 5 5 3 35 4 45 Input Power (dbm) Figure. CLA46 to CLA466 CW Output vs Input Power 335- Output Power (dbm) 4 35 3 5 5 CLA467 CLA468 5 CLA469 CLA46 5 5 5 3 35 4 45 Input Power (dbm) Figure. CLA467 to CLA46 CW Output vs Input Power 335- Insertion Loss (db) 5 5 5 CLA46 CLA46 CLA463 CLA464 CLA465 CLA466 5 5 5 3 35 4 45 Power In (dbm) Figure 3. LCA46 to CLA466 Insertion Loss vs CW Input Power 335-3 Insertion Loss (db) 5 5 5 CLA467 CLA468 CLA469 CLA46 5 5 5 3 35 4 45 Power In (dbm) Figure 4. CLA467 to CLA46 Insertion Loss vs CW Input Power 335-4 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7 5
Technical Description The limiter can be used in various configurations to meet different application requirements. For example, in low-tomedium power applications, a single-stage limiter can be used. In this case, an inductor must be used in parallel with the limiter to create a DC return choke. A dual-stage limiter design can handle much higher power. The first stage works as the coarse stage (CLA467 through CLA46), and the second stage works as the cleanup stage (CLA46 through CLA466). Package dimension drawings are provided in Figures 5 through 8. For detailed application information, refer to the Skyworks Application Note: PIN Limiter Diodes in Receiver Protectors at www.skyworksinc.com. Package Outline Drawings.5 (.7 mm).4 (. mm) Schematic N-Type.55 (.4 mm).5 (.3 mm) Dia. Dimensions are in inches (millimeters shown in parentheses) 335-5 Figure 5. -3 Package.64 (.63 mm).6 (.5 mm) Places.4 (3.5 mm).9 (3. mm) Dia..5 (.63 mm) Max. Schematic.5 (5.7 mm).5 (5. mm).97 (.46 mm).83 (. mm).83 (. mm).77 (.95 mm).64 (.63 mm).6 (.5 mm) Dimensions are in inches (millimeters shown in parentheses) 335-6 Figure 6. - Package 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7 6
Version A Schematic Cathode.75 (.9 mm).65 (.65 mm) Sq.. (.5 mm) Typ..33 (.84 mm) Min..45 (.4 mm).3 (.76 mm). (.5 mm) Ref. Dimensions are in inches (millimeters shown in parentheses) Version B Figure 7. -9 Package 335-7 Isolink, Inc. 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7 7
Schematic Colored Dot Denotes Cathode.98 (.49 mm).9 (.34 mm) Diameter Cover 45. (.56 mm).8 (.46 mm) Metal Metal Ceramic.4 (.64 mm).9 (.34 mm) Sq..75 (4.44 mm).5 (3.8 mm) Places.5 (.7 mm).3 (.76 mm).4 (.6 mm).8 (.7 mm) Dimensions are in inches (millimeters shown in parentheses) Figure 8. -4 Package 335-8 335C Isolink Proprietary Information Products and Product Information are Subject to Change Without Notice. July, 7 8
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