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MF10-N: its about the MF10-N characteristic of (gain vs frequency)

Part Number: MF10-N
The switched capacitor filter substitution work is carried out below.
LMF 100 → MF 10-N

Circuit: 2 steps of BPF of MODE 1
Constant: R 1 = 100 kΩ, R 2 = 5.1 kΩ, R 3 = 100 kΩ
clk input frequency (fclk): 6 types of 307.2 kHz, 384.0 kHz, 447.44 kHz, 512.0 kHz, 576.0 kHz, 800 kHz
Waveform input: superimposition of sine waves of the above six kinds of frequencies

Looking at the final stage BPF output waveform, the amplitude of MF10 - N is doubled relative to LMF 100, especially at 800 kHz.
(About 2 V with LMF 100, about 4 V with MF 10-N)
The other frequencies were nearly equivalent in LMF 100 and MF 10-N.

Looking at the data sheet, in the fclk MAX value of each device,
LMF 100 = 3.5 MHz, MF 10-N = 1.5 MHz
And since this phenomenon only appears at the higher frequency of 800 kHz, probably, I thought whether the device alone, in other words, "Gain vs frequency characteristic" of "elementary" is involved, but this recognition was mistakenly Do you have it?
Also, regarding the above "Gain vs. frequency characteristics", are not graphs and materials etc.?

Over, thank you for your response, thank you.