Rainbow-electronics MAX4912 Manuale Utente Scaricare il pdf (Pagina 3)

MAX4910/MAX4911/MAX4912

Quad-SPDT, Clickless Audio Switches

with Negative Signal Handling

_______________________________________________________________________________________ 3

Note 1: All parameters are production tested at T

= +85°C and guaranteed by design over the specified temperature range.

Note 2: Signals on COM_, NO_, or NC_ exceeding V

are clamped by internal diodes. Limit forward-diode current to maximum current

rating.

Note 3: Guaranteed by design; not production tested.

Note 4: ∆R

= R

ON(MAX)

- R

ON(MIN)

Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified

analog signal ranges.

Note 6: Off-isolation = 20log

COM_

/ V

NO_

], V

COM_

= output, V

_ = input to off switch.

ELECTRICAL CHARACTERISTICS (continued)

= +2.7V to +5.5V, T

= -40°C to +85°C, EN = low (MAX4911 only), unless otherwise noted. Typical values are at V

= +3.0V, T

+25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

= +25°C

-10 +10

NC_ Off-Leakage Current

NC_

(

OFF

)

MAX4912 (NC2 and NC4)

only: V

= +2.7V, switch

open, V

NC_

= -2.5V or

+2.5V, V

COM_

= +2.5V or

-2.5V

= T

MIN

to T

MAX

-50 +50

= +25°C

-10 +10

COM_ On-Leakage Current

COM_

(

)

= +2.7V, switch closed;

NC_

or V

NO_

= -2.5V,

+2.5V, or floating; V

COM_

-2.5V, +2.5V, or floating

= T

MIN

to T

MAX

-100 +100

DYNAMIC CHARACTERISTICS

Turn-On Time t

= +2.7V, CB_ = low to high, R

= 50Ω,

= 5pF, V

NO_

= +1.5V, Figure 2

0.055 0.15

µs

Turn-Off Time t

OFF

= +2.7V, CB_ = high to low, R

= 50Ω,

= 5pF, V

NO_

= +1.5V, Figure 2

0.3 1.0 µs

Break-Before-Make Delay

Time

C C

= + 2.7V , C B_ = l ow to hi g h or hi g h to l ow ,

= 50Ω , C

= 5p F, V

N C _

= V

N O_

= + 1.5V , Fi g ur e 3

125 ns

Charge Injection Q V

GEN_

= 0, R

GEN

= 0, C

= 1nF, Figure 4

300

P ow er - S up p l y Rej ecti on Rati o

PSRR f = 20kHz, V

COM_

= 1V

RMS,

= 50Ω, C

= 5pF 60 dB

Off-Isolation V

ISO

f = 20kHz, V

COM_

= 1V

RMS

, R

= 50Ω, Figure 5

(Note 6)

-90

Crosstalk V

f = 20kHz, V

COM_

= 1V

RMS

, R

= 50Ω, Figure 5

-80

Total Harmonic Distortion THD

f = 20Hz to 20kHz, V

COM_

= 0.5V

P-P

, R

= 50Ω,

DC bias = 0

0.05

NO_, NC_

Off-Capacitance

(

OFF

)

f = 1M H z, V

C OM _

= 0.5V

P - P

D C b i as = 0, Fi g ur e 6

100

COM

On-Capacitance

COM

(

)

f = 1M H z, V

C OM _

= 0.5V

P - P

, D C b i as = 0, Fi g ur e 6

200

DIGITAL INPUTS (CB_, EN)

Input Logic High V

1.4 V

Input Logic Low V

0.5 V

Input Leakage Current

_ = V

= 0V or V

-1 +1 µA

1 2 3 4 5 6 7 8 ... 12 13

MAX4910/MAX4911/MAX4912 1

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