Pinout for SED9421

Wed Nov 23 19:38:17 CST 2005

On 11/23/2005 at 8:01 PM ard at p850ug1.demon.co.uk wrote:

>Does anyone have the pinout (or a datasheet) for the SED9421 chip (18 pin 
>DIL package). 

I found this on a Japanese site:

1.XG
2.XD
3. ph1
4.NC
5.RD DATA
6.WINDOWS
7.DATA
8.MFM/FM
9.MIN/STD
10.VSS
11.CONTROL
12.OFFSET
13.LPF
14.WCLK
15.ph2
16.NC
17.NC
18.VDD

It appears to be a VFO for use with the SED9420C data separator (like you'd
find in an Amstrad CPC).

Hope this helps.

Chuck