7

LTC1062

1062fd

Divide By 1, 2, 4 (Pin 4)

clock frequency driving the internal switched capacitor

network is the oscillator frequency divided by 1, 2, 4

respect to the internal clock generator output frequency.

The internal divider is useful for applications where octave

tuning is required. The ÷2 threshold is typically ±1V from

the mid supply voltage.

Transient Response

Figure 3 shows the LTC1062 response to a 1V input step.

Filter Noise

±5V supply and it is nearly independent from the value of

the cutoff frequency. For single 5V supply the RMS noise

density, unlike conventional active filters, is nearly zero for

Performance Characteristics section. Table 2 shows the

LTC1062 RMS noise for different noise bandwidths.

Table 2

NOISE BW

2µV

8µV

20µV

62µV

100µV

200mV/VERT DIV

1

2πRC

1.62

=

1

2πRC

1.94

=

1

2πRC

2.11

=

Figure 3. Step Response to a 1V Peak Input Step

APPLICATIO S I FOR ATIO