STCD2400F35F datasheet(29/39 Pages) STMICROELECTRONICS

29 / 39 page

STCD22x0, STCD23x0, STCD24x0

DC and AC parameters

Doc ID 15400 Rev 2

29/39

PSRR

Power supply rejection ratio(3)(4)

VCC = 2.5 V to 5.1 V,

Fripple = 217 Hz,

ILOAD = 20 mA

VCC = 2.5 V to 5.1 V,

Fripple = 1 kHz,

ILOAD = 20 mA

VCC = 2.5 V to 5.1 V,

Fripple = 1 MHz,

ILOAD = 20 mA

VCC = 2.5 V to 5.1 V,

Fripple = 3.25 MHz,

ILOAD = 20 mA

Output noise voltage(3)

ILOAD = 5 mA, 10 Hz to

100 kHz

µVrms

tST

Startup time(3)

VTCXO > 90%,

ILOAD = 10 µA to 20 mA

150

400

µs

Output voltage falling time(3)

VTCXO < 10%,

ILOAD = 0

120

400

µs

Clock distribution

fMCLK

Master clock (from external clock

source)

Square wave / sine

wave

MHz

fCLK duty cycle

VIN

Input clock voltage level(5)

Square wave

0.8

1.8

VTCXO + 0.2

Vpp

Sine wave

0.8

VTCXO + 0.2

Vpp

VOH

Output high

CL = 20 pF

VTCXO – 0.05 VTCXO

VOL

Output low

CL = 20 pF

0.05

Tr/f

Rise/fall time(6)

CL =10 pF~ 40 pF

IQC

Quiescent current(7)

(including LDO)

1 channel enabled

200

µA

2 channels enabled

200

3 channels enabled

200

4 channels enabled

200

ICC

Active current(8)

1 channel enabled

1.9

2 channels enabled

3.0

3 channels enabled

4.1

4 channels enabled

5.2

ISB

Standby current

(including LDO)

All buffers off

0.2

µA

RIN

Input impedance

> 100

Table 10.

DC and AC characteristics (continued)

Sym.

Parameter

Condition(1)

Min

Typ

Max

Unit

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