| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,566 pcs
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3566 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The MC145481SD is a versatile PCM Codec-Filter designed for voice digitization and reconstruction in PCM systems. It performs essential band-limiting and smoothing functions, supporting both synchronous and asynchronous applications. This device offers pin-selectable Mu-Law or A-Law companding, providing flexibility for different communication standards.
The MC145481SD integrates an input operational amplifier and an encoder section that low-pass filters analog signals before digitization. It utilizes a differential switched capacitor filter for band-passing the analog signal from 200 Hz to 3400 Hz. The decoder accepts PCM data, expands it using a differential D/A converter, and applies low-pass filtering and sinX/X compensation.
This Codec-Filter operates with a digital supply voltage ranging from 2.7V to 5.25V and has an operating temperature range of -40°C to 85°C. It is housed in a compact 20-SSOP package, suitable for surface mount applications. The device also features an on-chip precision reference voltage and an improved power supply rejection ratio due to its differential design.
Key specifications include 6-bit resolution for ADCs and DACs, a PCM audio interface, and a typical power dissipation of 8 mW at 3V. The MC145481SD is compatible with various Motorola telecommunication products.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.72 | $2.72 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The MC145481SD is a general-purpose PCM Codec-Filter.
The MC145481SD offers pin-selectable Mu-Law or A-Law companding.
The MC145481SD has a resolution of 6 bits for both its ADC and DAC.
The MC145481SD operates with a digital supply voltage range of 2.7V to 5.25V.
The MC145481SD has an operating temperature range of -40°C to 85°C.
The MC145481SD is supplied in a 20-SSOP package.
The MC145481SD is designed for surface mount applications.