SI3021 datasheet(11/54 Pages) ETC

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Si3035

Rev. 1.2

Table 11. Digital FIR Filter Characteristics—Transmit and Receive

(VA = Charge Pump, VD = +5 V ±5%, Sample Rate = 8 kHz, TA = 0 to 70°C for K-Grade)

Parameter

Symbol

Min

Typ

Max

Unit

Passband (0.1 dB)

F(0.1 dB)

0—

3.3

kHz

Passband (3 dB)

F(3 dB)

0—

3.6

kHz

Passband Ripple Peak-to-Peak

–0.1

—

0.1

Stopband

—

4.4

—

kHz

Stopband Attenuation

–74

—

Group Delay

tgd

—

12/Fs

—

sec

Note: Typical FIR filter characteristics for Fs = 8000 Hz are shown in Figures 6, 7, 8, and 9.

Table 12. Digital IIR Filter Characteristics—Transmit and Receive

(VA = Charge Pump, VD = +5 V ±5%, Sample Rate = 8 kHz, TA = 0 to 70°C for K-Grade)

Parameter

Symbol

Min

Typ

Max

Unit

Passband (3 dB)

F(3 dB)

0—

3.6

kHz

Passband Ripple Peak-to-Peak

–0.2

—

0.2

Stopband

—

4.4

—

kHz

Stopband Attenuation

–40

—

Group Delay

tgd

—

1.6/Fs

—

sec

Note: Typical IIR filter characteristics for Fs = 8000 Hz are shown in Figures 10, 11, 12, and 13. Figures 14 and 15 show

group delay versus input frequency.

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