1. Product Identification & Overview

️· Product: ACT8532
️· Type: SAW (Surface Acoustic Wave) Filter
️· Description: Dual-channel filter designed for IF (Intermediate Frequency) applications, likely in a receiver system. It provides two separate filtering paths.
️· Package: TO-8 (Implied by the pinout information - details omitted from provided text)
️· Function: Provides filtering at around 480MHz with good performance characteristics.

2. Contact Information

️· Phone: +44 118 979 1238
️· Fax: +44 118 979 1283
️· Email: info@actcrystals.com
️· Website: http://www.actcrystals.com
️· Address: 3 The Business Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK

3. Operating Conditions & Electrical Characteristics

️· Reference Temperature: 25°C
️· Source Impedance: 50Ω
️· Load Impedance: 50Ω
️· Group Delay Aperture: 0.25 MHz (relevant to how consistently the filter delays signals across its passband)

4. Channel 1 Characteristics (approx. 480 MHz)

️· Center Frequency (fc): 478.50 – 480.50 MHz (the nominal center frequency is 479.5 MHz)
️· Insertion Loss (at fc): 21.0 – 22.5 dB
️· Passband: Defined by 3dB bandwidth, approximately 27.0 MHz.
️· Attenuation at Frequencies:
- 466.00 MHz: >32.0 dB
- 493.00 MHz: >30.0 dB
- Lower Sidelobe (430.00 - 452.00 MHz): > 3.3 dB
- Upper Sidelobe (507.00 - 530.00 MHz): > 2.5 dB
️· Reflected Wave Signal Suppression: 40.0 – 49.0 dB (within a specific time window: 0.13 – 2.0 μs)
️· Amplitude Ripple (p-p): 0.6 – 1.2 dB (across a portion of the frequency band 471 - 488 MHz)
️· Group Delay Ripple: 11 - 18 ns (across a portion of the frequency band 466 – 493 MHz)
️· Temperature Coefficient of Frequency (TCf): -86 ppm/K (This indicates how much the center frequency changes with temperature).

5. Channel 2 Characteristics (approx. 480 MHz)

️· Essentially the same specifications as Channel 1, but with slightly different attenuation values at certain frequencies. (Channel 2 attenuation values are different than Channel 1 at 466.00 MHz: >32.0dB vs >30.0 dB, and at 493.00 MHz: >32.0 vs >30.0dB)

6. Physical Characteristics

️· Operating Temperature Range: -25°C to +85°C
️· Storage Temperature Range: -40°C to +85°C
️· Test Fixture Setup: Requires a 50Ω test system with VSWR ≤ 1.2:1.

7. Important Notes and Cautions

️· Electrostatic Sensitive Device (ESD): Requires ESD precautions during handling.
️· Specifications are Subject to Change: ACT Crystals reserves the right to modify specifications without notice.
️· Government Agency Approval: Equipment using this filter may require approval from relevant government agencies.
️· Liability: ACT Crystals' liability is limited to the SAW component itself, not the entire application circuit.

Key Takeaways:

️· The ACT8532 is a high-performance dual-channel SAW filter designed for precise filtering in receiver systems.
️· It operates around 480 MHz with tight specifications for insertion loss, attenuation, and ripple.
️· Careful handling and consideration of operating conditions are crucial for optimal performance.
️· Contact ACT Crystals directly for detailed specifications, application guidance, and quotations.