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Product Detailed Parameters
- Description：IC TELECOM INTERFACE 48VQFP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tray
- Function：PCM CODEC
- Interface：-
- Number of Circuits：1
- Voltage - Supply：2.7V ~ 3.3V
- Current - Supply：-
- Operating Temperature：-30°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：48-LQFP
- Supplier Device Package：48-VQFP (7x7)
- Power (Watts)：400 mW
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Overview
The BU8761KV is a PCM CODEC IC developed for digital mobile phones. It incorporates analog I/O functions including a 14-bit precision linear µ/A-LAW codec, two microphone systems, amplifiers for receiver and earphone, and data signal I/O circuits. A tone generator capable of outputting maximum three chords is included. The device operates on a +3V single power supply with DVDD, RXVDD, and TXVDD ranging from 2.7V to 3.3V. It features a built-in PLL circuit for system clock generation and a DSP interface conforming to digital mobile phone standards. The package type is VQFP48.
Feature Summary
- 14-bit precision linear µ/A-LAW codec
- Built-in PLL circuit for system clock generation
- DSP interface conforming to digital mobile phones
- Arbitrary setting of PCM data transmission clock frequency
Applications
- Digital mobile phones
Procurement Notes
Verify the specific revision status and manufacturing date code upon order confirmation. Ensure that the procurement channel provides original manufacturer packaging to maintain component integrity. Confirm compliance with RoHS directives as indicated in the official documentation before finalizing purchase agreements.
Selection Notes
Select this component when designing audio processing circuits for digital mobile phones requiring integrated codec and amplifier functions. Verify that the system voltage requirements align with the 2.7V to 3.3V operating range. Ensure the PCB layout accommodates the VQFP48 package dimensions and thermal dissipation needs specified in the datasheet.
Part Context
The BU8761KV belongs to ROHM Semiconductor's Communication ICs category. It is specifically engineered for audio processing in portable communication devices. This part integrates multiple analog and digital functions into a single chip, reducing the overall component count and board space required for mobile phone audio subsystems.
Replacement Considerations
No verified public substitute part numbers are available in the provided source material. Consult ROHM Semiconductor directly for potential alternative components or updated product line information.
FAQ
What is the supported codec format?
The BU8761KV supports 14-bit precision linear µ/A-LAW codec.
Does the IC include a tone generator?
Yes, it includes a tone generator capable of outputting a maximum of three chords, supporting DTMF signals and musical scale tones.
What is the recommended operating voltage range?
The recommended operating voltage range for DVDD, RXVDD, and TXVDD is 2.7V to 3.3V.
