FX805J Ver la hoja de datos (PDF) - CML Microsystems Plc

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componentes Descripción

Fabricante

FX805J

Sub-audio signalling processor

CML Microsystems Plc 

Specification

Absolute Maximum Ratings

Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is not implied.

Supply voltage

Input voltage at any pin (ref V = 0V)

SS

Sink/source current (supply pins)

(other pins)

Total

device

dissipation

@

T

AMB

25°C

Derating

Operating temperature range: FX805J

FX805LG/LS

Storage temperature range:

FX805J

FX805LG/LS

-0.3 to 7.0V

-0.3 to (V + 0.3V)

DD

+/- 30mA

+/- 20mA

800mW Max.

10mW/°C

-40°C to +85°C (cerdip)

-40°C to +85°C (plastic)

-55°C to +125°C (cerdip)

-40°C to +85°C (plastic)

Operating Limits

All device characteristics are measured under the following conditions unless otherwise specified:

V

DD

= 5.0V.

T

AMB

= 25°C.

Xtal/Clock f = 4.0MHz.

XTAL

Audio Level 0dB ref: = 308mVrms @ 1kHz.

Composite Signal = 308mVrms @ 1kHz + 75mVrms Noise + 31mVrms Sub-Audio Signal.

Noise Bandwidth = 5kHz Band Limited Gaussian.

Characteristics

See Note

Static Values

Supply Voltage

Supply Current

(All Functions Enabled)

(Decoders Only Enabled)

(Powersave All)

Analogue Impedances

Rx Sub-Audio Input

Audio Input

Audio By-Pass Switch ‘On’

5

Audio By-Pass Switch ‘Off’

5

Rx Amp Input (+ and -)

Comparator Input (+ and -)

Rx Sub-Audio Output

Tx Sub-Audio Output (Encoder Enabled)

5

(Encoder Disabled)

5

Audio Output

(Enabled)

5

(Disabled)

5

Rx Amp and Comparator Outputs

Large Signal

Small Signal

Dynamic Values

Digital Interface

Input Logic “1”

1

Input Logic “0”

1

Output Logic “1” (IOH = -120µA)

2

Output Logic “0” (IOL = 360µA)

3

I

OUT

Tristate

(Logic

“1”

or

“0”)

3

Input Capacitance

1

Logic Input Current (V = 0 to 5.0V)

1

IN

IOX

(VOUT = 5.0V)

4

Overall Performance

CTCSS – Decode

Sensitivity

(Pure CTCSS Tone) 6

Response Time

(Composite Signal)

100Hz to 257Hz Tone

65Hz Tone

9

Tone Measurement Resolution

Tone Measurement Accuracy

NOTONE Response Time (Composite Signal) 7

False Tone Interrupts

(Noise input only)

10

Min.

4.5

–

–

–

350

350

–

1.0

1.0

1. 0

–

–

–

–

–

–

–

3.5

–

4.6

–

–

–

–

–

–

–

–

–

–

–

–

14

Typ.

5.0

5.0

1.9

0.9

–

–

2.0

10.0

10.0

10.0

2.0

2.0

500

2.0

500

6.0

600

–

–

–

–

–

–

–

–

-26.0

–

–

0.2

0.5

–

20.0

Max.

5.5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1.5

–

0.4

4.0

7.5

1.0

4.0

–

250

375

–

–

250

–

Unit

V

mA

mA

mA

kΩ

kΩ

kΩ

MΩ

MΩ

MΩ

kΩ

kΩ

kΩ

kΩ

kΩ

kΩ

Ω

V

V

V

V

µA

pF

µA

µA

dB

ms

ms

%

%

ms

/Hr

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