STCD1020 datasheet(16/40 Pages) STMICROELECTRONICS

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DC and AC parameters

STCD1020, STCD1030, STCD1040

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Doc ID 13823 Rev 6

DC and AC parameters

This section summarizes the operating measurement conditions, and the DC and AC

characteristics of the device. The parameters in the DC and AC characteristics tables that

follow are derived from tests performed under the measurement conditions summarized in

Table 6. Designers should check that the operating conditions in their circuit match the

operating conditions when relying on the quoted parameters.

Table 6.

Operating and AC measurement conditions (1.8 V supply)

Parameter

Condition

Unit

VCC supply

1.65 to 2.75

Output clock voltage (CLK1…CLK4)

0 to VCC

Device enable voltage (EN1…EN4)

0 to VCC

Ambient operating temperature (TA)

–40 to +85

°C

Table 7.

DC and AC characteristics (1.8 V supply)

Symbol

Parameter

Condition(1)

Min

Typ

Max

Unit

fMCLK

Master clock (eg. from VCTCXO)

Sine wave/square wave

MHz

VCC

Supply voltage

1.65

1.8

2.75

Vin

Input clock voltage level(2)

0.75

Vpp

Vout

Output gain level(3)

CL = 10 pF

–1.5

–0.5

Quiescent current(4)

2 buffers version

1.6

2.6

3 buffers version

2.0

3.3

4 buffers version

2.6

IACT

Active current(5)

1 channel enabled

1.7

2 channels enabled

2.2

3 channels enabled

2.7

4 channels enabled

3.2

ISB

Standby current

All buffers disabled

μA

RIN

Input resistance

At DC level

>100

CIN

Input capacitance

f = 26 MHz

tr/f

Rise/fall time(6)

Vin = 1 Vpp, CL = 10 pF

Square wave input/output

Signal bandwidth(3)

Vin = 1 Vpp, –1 dB, CL = 10 pF

Sine wave input/output

MHz

VENH

Enable voltage high(7)

EN1~EN4

1.2

VENL

Enable voltage low(7)

EN1~EN4

0.6

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