P

A

ASP

AP8111

Revision 2.4

15 April., 2002

5

8 Recommended Operating Condition

The following is the recommended operating conditions for the TruBass analog processor

Symbol

Parameter

Min

Max

Unit

VCC

DC supply voltage

4.75

5.25

Volts

Vi

DC input voltage range

-0.3

VCC+0.3

Volts

Vo

DC output voltage range

0

VCC

Volts

Tamb

Operating ambient temperature range

0

70

°C

9 DC Electrical Specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Vcc

Chip supply voltage

4.75

5

5.25

V

Icc

Operating current

Vcc = 5.0

10

mA

Ipd

Power down supply current

Vcc = 5.0

25

50

uA

Rin

Left/Right input impedance

10

kΩ

Vref

Analog reference voltage

2.02

2.25

2.48

V

Rload

Resistance load at Left/Right output

10

kΩ

Cload

Capacitance load at Left/Right

output

50

pF

Vil

Digital input logic low

0.3

V

Vmid

Mid-level for Tri-level logic

If floated, internal

reference will ensure

Vmid

Vcc/2 –

10%

Vcc/2

Vcc/2 +

10%

V

Vih

Digital input logic high

Vcc – 0.3

V

Ileak

Digital input leakage ( except

TBGAIN )

Vcc = 5.0

-10

10

uA

10 AC Electrical Specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Freq

Audio signal operating frequency

20

20000

Hz

Vrli

Audio input signal level (0dB level

reference)

Inputs AC coupled

1

Vrms

Vrlo

Audio output level

Rload = 10kΩ

1

Vrms

Gerror

Output gain error

Bypass mode, input

signal @ 0dB 1kHz

-0.5

0.5

dB

SNR

Signal to noise ratio

Bypass mode /A-

weighted, input signal @

-60dB 1kHz

80

dB

THD

Total harmonic distortion

Bypass mode

Input @ 0dB 1kHz

1

%

Xtalk

Channel Crosstalk

Bypass mode

-70

dB

Comp

TruBass Compressor Ratio

Punch at maximum gain

2:1

Rate

Attack to decay time constant ratio Absolute value set by

external capacitor

10:1