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Hello, Please ask a question about LD25A Datasheet
# Example questions:
➢ What are the input and output impedance values, and what does the document suggest to reference for more detailed information on these values?
➢ What is the operable and storage temperature range for this saw filter?
➢ How does the grounding scheme impact crosstalk, and what is the recommended practice for minimizing it?
| Part No. | LD25A |
| Manufacturer | EPCOS |
| Size | 73 Kbytes |
| Pages | 6 pages |
| Description | Low Loss Filter |
# SAW Components B3574 (LD25A) – 868.30 MHz Low Loss Filter
## Features
️· RF low-loss filter for remote control receivers
️· SMT (Surface Mount Technology) package
️· Supports balanced and unbalanced operation
️· Ni, gold-plated terminals
️· QCC8C ceramic package
## Pin Configuration
️· 1: Input
️· 2: Input Ground or balanced input
️· 5: Output
️· 6: Output Ground or balanced output
️· 7: External coupling coil
️· 4, 8: Case-Ground
️· 3: Ground
## Maximum Ratings
️· Operable temperature range: -45 to +95 °C
️· Storage temperature range: -45 to +95 °C
️· DC voltage: 0 V
️· Source power: 0 dBm
## Characteristics
️· Center Frequency: 868.30 MHz
️· Minimum Insertion Attenuation: 4.2 dB
️· Amplitude Ripple: 0.5 to 2.0 dB
️· Matching network elements: Ls1 = 18 nH, Lp2 = 39 nH, Lp3 = 39 nH, Ls4 = 18 nH, Lk = 12 nH
## Crosstalk & Layout
️· Grounding loops are avoided by isolating transducer grounds
️· A 0.5 nH common GND inductance degrades ultimate rejection
️· Optimized PCB layout minimizes grounding loops
# SAW Components B3574 (LD25A) – 868.30 MHz Low Loss Filter
## Features
️· RF low-loss filter for remote control receivers
️· SMT (Surface Mount Technology) package
️· Supports balanced and unbalanced operation
️· Ni, gold-plated terminals
️· QCC8C ceramic package
## Pin Configuration
️· 1: Input
️· 2: Input Ground or balanced input
️· 5: Output
️· 6: Output Ground or balanced output
️· 7: External coupling coil
️· 4, 8: Case-Ground
️· 3: Ground
## Maximum Ratings
️· Operable temperature range: -45 to +95 °C
️· Storage temperature range: -45 to +95 °C
️· DC voltage: 0 V
️· Source power: 0 dBm
## Characteristics
️· Center Frequency: 868.30 MHz
️· Minimum Insertion Attenuation: 4.2 dB
️· Amplitude Ripple: 0.5 to 2.0 dB
️· Matching network elements: Ls1 = 18 nH, Lp2 = 39 nH, Lp3 = 39 nH, Ls4 = 18 nH, Lk = 12 nH
## Crosstalk & Layout
️· Grounding loops are avoided by isolating transducer grounds
️· A 0.5 nH common GND inductance degrades ultimate rejection
️· Optimized PCB layout minimizes grounding loops
| Part No. | LD25A |
| Manufacturer | EPCOS |
| Size | 73 Kbytes |
| Pages | 6 pages |
| Description | Low Loss Filter |
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