FX602 데이터 시트보기 (PDF) - CML Microsystems Plc

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FX602

Calling line identifier

CML Microsystems Plc 

Calling Line Identifier

FX602

Operating Characteristics

For the following conditions unless otherwise specified:

VDD = 3.0V at Tamb = 25°C and VDD = 3.3V to 5.5V at Tamb = - 40 to +85°C,

Xtal Frequency = 3.579545MHz ± 0.1%

0dBV corresponds to 1.0Vrms

Notes Min.

Typ.

Max. Units

DC Parameters

IDD (ZP input high) at VDD = 5.0V

IDD (ZP input low) at VDD = 3.0V

IDD (ZP input low) at VDD = 5.0V

Logic '1' input level (RXCK and XTAL inputs)

Logic '0' input level (RXCK and XTAL inputs)

Logic input leakage current (Vin = 0 to VDD),

excluding XTAL input

Output logic '1' level (lOH = 360µA)

Output logic '0' level (lOL = 360µA)

IRQN o/p 'off' state current (Vout = VDD)

Schmitt Trigger input thresholds, see fig 10

High going (Vthi)

1,2

1.0

µA

1

0.5

1.0

mA

1

1.0

2.0

mA

70%

-1.0

VDD

30%

VDD

+1.0

µA

VDD - 0.4

V

0.4

V

1.0

µA

0.56VDD

0.56VDD V

+ 0.6

Low going (Vtlo)

0.44VDD

- 0.6

0.44VDD V

Tone Alert Detector

'Low' tone nominal frequency

2130

Hz

'High' tone nominal frequency

2750

Hz

Start of Tone Alert signal to DET high time

40

msec

(Fig. 6 Tton)

End of Tone Alert signal to DET and IRQN low

time (Fig 6 Ttoff)

0.5

10.0 msec

To ensure detection ;

3

'Low' tone frequency tolerance

±20

Hz

'High' tone frequency tolerance

±30

Hz

Level (per tone)

4

-40.0

-2.2

dBV

2750Hz tone level wrt

2130Hz tone level

-7.0

+7.0

dB

Signal to Noise ratio

5

20.0

dB

Dual tone burst duration

75

msec

To ensure non-detection ;

6

'Low' tone frequency tolerance

±75

Hz

'High' tone frequency tolerance

±95

Hz

Level (total)

4

-46.0 dBV

Dual tone burst duration

25

msec

© 1998 Consumer Microcircuits Limited

25

D/602/7

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