On 20 January, RJD Smith wrote,

> I am wanting to use a 16C84 to provide volume control to a simple audio
> amplifier (microphone input, speaker output).
>
> I already have the 16C84 connected to an LCD driver using an I2C (IIC)
> bus, and an elegant solution seems to be to use an I2C audio preamp.
>
> I have a list of some possible devices (from an I2C databook):
>
>         TDA 8405
>         TDA 8420        *
>         TDA 8421
>         TDA 8425        *
>         TEA 6100
>         TEA 6300
>         TEA 6310T
>
> The trouble now is finding a (UK) supplier.

All but the TDA 8420 are available from Grandata in Wembley, the cheapest
being the 6100 at #3.50.

I have used Grandata for quite a few years and find them an excellent
source for Japanese and other less common semiconductors.

E-mail me if you need any further information.

Bob Dent
robert.dent@virgin.net