How fast will low-voltage SCF circuit/system work in future?

[boki]

Dear All,

How do you think about:

How fast will low-voltage SCF circuit/system work in future? possible
to
higher than active RC?

PC device is possible? ( VGA card / or others)

SCF advantage:
* we do not need large chip area to layout resistor if there is a low
freqnecy applicatoin, for example, EGG signal: 1Hz~120Hz.

* High accuracy in capacitor ratio than continues time system.

More??

Thank you very much.

Boki.

 

[John Larkin]

On 30 Apr 2004 12:27:38 -0700, bokiteam@ms21.hinet.net (boki) wrote:

Dear All,

How do you think about:

How fast will low-voltage SCF circuit/system work in future? possible
to
higher than active RC?

Seems impossible to me. The SCF needs to make 100 or so steps per
signal cycle, and the linear filter needs only one. A 1 GHz active RC
filter is conceivable, but a 1 GHz switched-cap would need to be
clocked at 50-100 GHz.

John

 

[boki]

John Larkin <jjlarkin@highSNIPlandTHIStechPLEASEnology.com> wrote in message news:<3ij5905n295b86e9m9sqiuhv1437tmi413@4ax.com>...

On 30 Apr 2004 12:27:38 -0700, bokiteam@ms21.hinet.net (boki) wrote:

Dear All,

How do you think about:

How fast will low-voltage SCF circuit/system work in future? possible
to
higher than active RC?


Seems impossible to me. The SCF needs to make 100 or so steps per
signal cycle, and the linear filter needs only one. A 1 GHz active RC
filter is conceivable, but a 1 GHz switched-cap would need to be
clocked at 50-100 GHz.

John

Hope there is a way ... : )


Thanks for reply.

Best regards,

Boki.