FX619 データシートの表示（PDF） - CML Microsystems Plc

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FX619

"Eurocom" Delta Codec

CML Microsystems Plc 

Specifications

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 VSS = 0V)

Source/sink current (supply pins)

(other pins)

Total device dissipation @ 25°C

Derating (J and M1 packages)

Derating (L1 and L2 packages)

Operating temperature range: FX619J

FX619L1/L2

FX619M1

Storage temperature range: FX619J

FX619L1/L2

FX619M1

Operating Limits

-0.3 to 7.0V

-0.3 to (VDD + 0.3V)

± 30mA

± 20mA

800mW Max.

10mW/°C

13mW/°C

-40°C to +85°C (cerdip)

-40°C to +85°C (plastic)

-40°C to +85°C (cerquad)

-55°C to +125°C (cerdip)

-40°C to +85°C (plastic)

-55°C to +125°C (cerquad)

All characteristics are measured using the following parameters unless otherwise specified:

VDD = 5.0V, TAMB = 25°C, Xtal/Clock f0 = 1.024MHz, Audio Level 0dB ref (0dBm0) = 489 mV rms.

Audio Test Frequency = 820 Hz. Sample Clock Rate = 32kb/s. Compand Algorithm = 3-bit.

Characteristics

See Note Min.

Typ.

Max.

Static Values

Supply Voltage

1

4.5

5.0

5.5

Supply Current (Enabled)

–

4.5

–

Supply Current (Powersave)

–

1.0

–

Inputs Logic '1'

8

3.5

–

–

Inputs Logic '0'

8

–

–

1.5

Outputs Logic '1'

8

4.0

–

–

Outputs Logic '0'

8

–

–

1.0

Digital Input Impedance

(Logic I/O pins)

1.0

10

–

Digital Input Impedance

(Logic input pins, pullup resistor)

2

300

–

–

Digital Output Impedance

–

–

4

Analogue Input Impedance

4

1

–

Analogue Output Impedance

7

–

–

800

Three State Output Leakage

Current (output disabled)

-4

–

+4

Insertion Loss

3

-2

–

+2

Dynamic Values

1

Encoder:

Analogue Signal Input Levels

5,9

-35

–

+6

Principle Integrator Frequency

–

275

–

Encoder Passband

3400

Compand Time Constant

–

4

–

Decoder:

Analogue Signal Output Levels

5,9

-35

–

+6

Decoder Passband

300

–

3400

Encoder Decoder (Full codec):

Compression Ratio (Cd = 0.5 to Cd = 0.0)

–

50

–

Passband

300

–

3400

Stopband

6

–

10

Stopband Attenuation

–

60

–

Passband Gain

–

0

–

Passband Ripple (300Hz –1400Hz)

-1

–

+1

(1400Hz – 2600Hz)

-1

–

+3

(2600Hz – 3400Hz)

-2

–

+3

Output Noise (Input short circuit)

9

–

–

-62

Perfect Idle Channel Noise (Encoder forced) 9

–

-63

–

Group Delay Distortion

6

(1000Hz to 2600Hz)

–

–

450

(600Hz to 2800Hz)

–

–

750

(500Hz to 3000Hz)

–

–

1.5

Xtal/Clock Frequency

500

1024

1500

– Notes to be used with these specifications are detailed on page 9 (overleaf)

Unit

V

mA

mA

V

V

V

V

MΩ

kΩ

kΩ

kΩ

Ω

µA

dB

dBm0

Hz

Hz

ms

dBm0

Hz

Hz

kHz

dB

dB

dB

dB

dB

dBm0p

dBm0p

µs

µs

ms

kHz

››››

8

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