CS5560 datasheet(6/32 Pages) CIRRUS

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CS5560

DS713PP2

5/4/09

SWITCHING CHARACTERISTICS

TA = -40 to +85 °C; V1+ = V2+ = +2.5 V, ±5%; V1- = V2- = -2.5 V, ±5%;

VL - VLR = 3.3 V, ±5%, 2.5 V, ±5%, or 1.8 V, ±5%

Input levels: Logic 0 = 0V = Low; Logic 1 = VD+ = High; CL = 15 pF.

BP/UP can be changed coincident CONV falling. BP/UP must remain stable until RDY falls.

If CONV is held low continuously, conversions occur every 320 MCLK cycles.

If RDY is tied to CONV, conversions will occur every 322 MCLKs.

If CONV is operated asynchronously to MCLK, a conversion may take up to 324 MCLKs.

RDY falls at the end of conversion.

RDY will fall when the device is fully operational when coming out of sleep mode.

Parameter

Symbol

Min

Typ

Max

Unit

Master Clock Frequency

Internal Oscillator

External Clock

XIN

fclk

0.5

16.2

MHz

Master Clock Duty Cycle

Reset

RST Low Time

tres

µs

RST rising to RDY falling

Internal Oscillator

External Clock

twup

120

1536

µs

MCLKs

Conversion

CONV Pulse Width

tcpw

MCLKs

BP/UP setup to CONV falling

(Note 7)

tscn

CONV low to start of conversion

tscn

MCLKs

Perform Single Conversion (CONV high before RDY falling)

tbus

MCLKs

Conversion Time

(Note 8)

Start of Conversion to RDY falling

tbuh

324

MCLKs

Sleep Mode

SLEEP low to low-power state

SLEEP high to device active (Note 9)

tcon

3083

µs

MCLKs

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