MAXFILTERBRD+ Maxim Integrated Products, MAXFILTERBRD+ Datasheet - Page 3

• Manufacturer Part Number: MAXFILTERBRD+
• Description: BOARD EVAL MAX7408/7415/418-7425
• Manufacturer: Maxim Integrated Products

Specifications of MAXFILTERBRD+

• Main Purpose: Filters, Lowpass, Switched-Capacitor Filters
• Embedded: No
• Utilized Ic / Part: MAX7408-MAX7415, MAX7418-MAX7425
• Primary Attributes: Bare PCB for Lowpass, Switched-Capacitor Filters
• Technology Type: Filter Evaluation Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MAX74x

The MAXFILTERBRD is an unpopulated PCB design to
evaluate the MAX7408–MAX7415/MAX7418–MAX7425
5th-order, lowpass SCFs.
The MAXFILTERBRD uses the internal oscillator when
a capacitor is installed on C1. Refer to corresponding
installed IC data sheet.
For the MAX7409/MAX7410/MAX7413/MAX7414, the
frequency can be altered using the following formula:
where k = 30 x 10
frequency.
For the MAX7408/MAX7411/MAX7412/MAX7415, k = 27 x 10
For the MAX7418/MAX7421/MAX7422/MAX7425, k = 87 x 10
For the MAX7419/MAX7420/MAX7423/MAX7424, k = 110 x 10
Detailed Description of Hardware
f
OSC
_______________________________________________________________________________________
3
and f
(kHz) = k/C1 (pF)
OSC
is the internal oscillator
Internal Clock
3
3
3
.
.
.
An external clock that matches the specification of the
corresponding IC data sheet can be used by cutting
the trace of jumper JU2. Drive the CLK pin with a CMOS
gate powered from 0 to VDD. Apply the clock signal to
the CLK pad.
The MAXFILTERBRD is configured for normal operation
once the desired IC is installed. The desired IC enters
shutdown by cutting the trace of jumper JU1 and driving
the IC SHDN pin low through the side of the jumper that
is still connected to the part.
MAXFILTERBRD
External Clock
Shutdown
3