Ac \\\'97 Rev 2 Codec With Sample Rate Conversion And National 3d Sound - National SemiconductorThe LM4546 is an Audio CODEC for PC systems which is fully
PC98 compliant and performs the Analog intensive functions
of the AC97 Rev 2 architecture. Using 18-bit Sigma-Delta
A/Ds and D/As, the LM4546 provides 90dB of Dynamic
Range.
The LM4546 was designed specifically to provide a high
quality Audio path and provide all Analog functionality in a PC
Audio system. It features full duplex stereo A/Ds and D/As
and an Analog mixer with 2 stereo and 3 mono inputs, each
of which has separate gain, attenuation and mute control.
The LM4546 also provides Nationals 3D Sound stereo en-
hancement.
The LM4546 supports variable sample rate conversion as
defined in the AC97 Rev2 specification. The sample rate for
the A/D and D/A CAN be programmed separately to convert
any rate between 4kHz - 48kHz with a resolution of 1Hz. The
AC97 architecture separates the Analog and digital functions
of the PC Audio system allowing both for system design flex-
ibility and increased performance. By National Semiconductor Corporation
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Part | Manufacturer | Description | Datasheet | Samples | |
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LM4546BVH | Texas Instruments | AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85 | |||
LM4546BVHX/NOPB | Texas Instruments | AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85 | |||
LM4546BVH/NOPB | Texas Instruments | AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85 |
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