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Product Detailed Parameters
- Description：SAW FILTER, SM1109-5PAD, 1582.47
- Series：-
- Mfr：TST
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency - Center：1.58247GHz
- Bandwidth：46.84MHz
- Insertion Loss：2.5dB
- Ratings：-
- Applications：GPS
- Mounting Type：Surface Mount
- Package / Case：5-SMD, No Lead
- Height (Max)：0.022" (0.57mm)
- Size / Dimension：0.043" L x 0.035" W (1.10mm x 0.90mm)
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Overview
The TA1954D is a Surface Acoustic Wave (SAW) bandpass filter manufactured by TST. It operates at a center frequency of 1.58247 GHz with a bandwidth of 46.84 MHz, specifically designed for GPS applications. The device features an insertion loss of 2.5 dB and is housed in a compact 5-SMD, no-lead package measuring 1.10mm x 0.90mm with a maximum height of 0.57mm. It supports surface mount installation and is available in tape and reel, cut tape, and Digi-Reel packaging formats.
Feature Summary
- Optimized for Global Positioning System (GPS) signal filtering
- Compact 5-SMD no-lead surface mount package design
- Low insertion loss characteristics for efficient signal transmission
Applications
- GPS receiver front-end modules
- Satellite navigation systems
- RF signal processing circuits requiring specific bandpass filtering
Procurement Notes
Verify the exact packaging configuration required, as the component is available in tape and reel, cut tape, and Digi-Reel formats. Confirm that the 5-SMD no-lead footprint matches the target PCB layout dimensions of 1.10mm x 0.90mm. Ensure compatibility with standard surface mount assembly processes for small outline packages.
Selection Notes
Select this component when a SAW filter with a 1.58247 GHz center frequency is required for GPS applications. The low profile and small footprint make it suitable for space-constrained designs. Consider the 2.5 dB insertion loss when calculating overall system gain. Verify that the 46.84 MHz bandwidth aligns with the specific GPS signal requirements.
Part Context
This part belongs to the TST SAW filter series, which provides specialized RF filtering solutions. The TA1954D is distinct from other models like the TA1964C due to its specific frequency and application focus. It is currently listed as an active component by the manufacturer, indicating ongoing production and support for integration into modern electronic devices.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires verifying electrical parameters such as center frequency, bandwidth, and insertion loss against the original design specifications.
