MAX7410CPA Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

MAX7410CPA

5th-Order, Lowpass, Switched-Capacitor Filters

Maxim Integrated 

5th-Order, Lowpass,

Switched-Capacitor Filters

ELECTRICAL CHARACTERISTICS—MAX7413/MAX7414 (continued)

(VDD = +3V, filter output measured at OUT pin, 10kΩ || 50pF load to GND at OUT, OS = COM, 0.1µF capacitor from COM to GND,

SHDN = VDD, fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

CLOCK

Internal Oscillator Frequency

fOSC COSC = 1000pF (Note 3)

21

30

38

kHz

Clock Output Current

(Internal Oscillator Mode)

ICLK VCLK = 0 or 3V

±13.5 ±20

µA

Clock Input High

Clock Input Low

POWER REQUIREMENTS

Supply Voltage

Supply Current

Shutdown Current

Power-Supply Rejection Ratio

SHUTDOWN

SHDN Input High

SHDN Input Low

SHDN Input Leakage Current

VIH

VIL

VDD

IDD

ISHDN

PSRR

Operating mode, no load

SHDN = GND

IN = COM (Note 4)

VSDH

VSDL

V SHDN= 0 to VDD

2.5

V

0.5

V

2.7

3.6

V

1.2

1.5

mA

0.2

1

µA

70

dB

2.5

V

0.5

V

0.2

±10

µA

FILTER CHARACTERISTICS

(VDD = +5V for MAX7409/MAX7410, VDD = +3V for MAX7413/MAX7414, filter output measured at OUT, 10kΩ || 50pF load to GND at

OUT, SHDN = VDD, fCLK = 100kHz, TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

BESSEL FILTERS—MAX7409/MAX7413

fIN = 0.5fC

Insertion Gain Relative to

DC Gain

fIN = fC

fIN = 4fC

fIN = 7fC

BUTTERWORTH FILTERS—MAX7410/MAX7414

-1

-0.74

-3.6 -3.0 -2.4

dB

-41.0 -35

-64.3 -58

Insertion Gain Relative to

DC Gain

fIN = 0.5fC

fIN = fC

fIN = 3fC

fIN = 5fC

-0.3

0

-3.6 -3.0 -2.4

dB

-47.5 -43

-70

-65

Note 1: The maximum fC is defined as the clock frequency fCLK = 100 x fC at which the peak S / (THD+N) drops to 68dB with a

sinusoidal input at 0.2fC.

Note 2: DC insertion gain is defined as ∆VOUT / ∆VIN.

Note 3: fOSC (kHz) ≅ 30 x 103 / COSC (pF).

Note 4: PSRR is the change in output voltage from a VDD of 4.5V and a VDD of 5.5V.

4 _______________________________________________________________________________________

Share Link: