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FX009A

Low-Noise Digitally Controlled Amplifier Array

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

-0.3 to 7.0V

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

Sink/source current (supply pins)

-0.3 to (VDD + 0.3V)

+/- 30mA

(other pins)

+/- 20mA

Total device dissipation @ TAMB 25°C

Derating

Operating temperature range: FX009A J

FX009A LG/LS

Storage temperature range: FX009A J

FX009A LG/LS

Operating Limits

800mW Max.

10mW/°C

-30°C to +85°C (cerdip)

-30°C to +70°C (plastic)

-55°C to +125°C (cerdip)

-40°C to +85°C (plastic)

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

VDD = 5.0V, TAMB = 25°C. Audio Level 0dB ref: = 775mVrms. Amplifier Gain Set = 0dB.

Characteristics

See Note

Min.

Typ.

Max.

Unit

Static Values

Supply Voltage (VDD)

Supply Current –

– All Stages Quiescent

– All Stages Operating

Dynamic Values

Control Functions

Input Logic '1'

Input Logic '0'

Digital Input Impedances

Amplifier Stages (General)

Bandwidth (-3dB)

Output Impedance

Total Harmonic Distortion

1

Output Noise Level (per stage)

2

Onset of Clipping

3

Gain Variation

4

Interstage Isolation

“Trimmer” Stages (Ch1 – Ch7)

Gain

Gain per Step (15 in No.)

Step Error

5

Input Impedance

“Volume” Stage (Ch8)

Gain

Gain per Step (15 in No.)

Step Error

5

Input Impedance

Timing (Figure 4)

Serial Clock "High" Pulse Width

Serial Clock "Low" Pulse Width

Data Set-up Time

Data Hold Time

Load/Latch Over Time

Load/Latch Delay

Load/Latch Pulse Width

Serial Data Clock Frequency

(tPWH)

(tPWL)

(t )

DS

(tDH)

(tLLO)

(t )

LLD

(tLLW)

4.5

5.0

5.5

V

–

0.16

–

mA

–

3.75

–

mA

3.5

–

–

V

–

–

1.5

V

0.5

1.0

–

MΩ

15.0

–

–

0.8

–

0.35

–

65.0

–

1.73

–

–

–

60.0

–

kHz

3.0

kΩ

0.5

%

-

µVrms

–

Vrms

0.1

dB

–

dB

-3.0

+3.0

dB

–

0.43

–

dB

–

–

±0.2

dB

100.0

–

–

kΩ

-14.0

+14.0

dB

–

2.0

–

dB

–

–

±0.4

dB

50.0

–

–

kΩ

250

–

–

ns

250

–

–

ns

150

–

–

ns

50

–

–

ns

–

–

50.0

ns

200

–

–

ns

150

–

–

ns

–

–

2.0

MHz

Notes

1.

2.

3.

4.

5.

Gain Set 0dB, Input Level 1kHz -3.0dB (549mVrms).

a.c short-circuit input, measured in a 30kHz bandwidth.

See Figure 3.

Over temperature and supply voltage range.

With reference to a 1.0kHz signal.

5

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