8

ACE9040

Characteristic

Value

Unit

Conditions

Min.

Typ.

Max.

Rx Earpiece Gain Adjustment EARSENSE

Nominal gain

0

dB

Total gain

- 2.8

3.2

dB

EARS[3:0] = 0 to 15

Gain adjustment step size

0.2

0.4

0.6

dB

RVX = 0 dB, RHF = 0 dB, SD = 0

Distortion

1

% THD

Output 1 Vrms

Rx Sidetone Path, IPS to EAMPI

Attenuation at EARSENSE amp input

18

19

20

dB

EARSENSE = 0 dB

Sidetone mute

– 40

dB

SD = 0

Rx Earpiece Drivers EPOP & EPON

EPON single ended gain

5.5

6

6.5

dB

Output = 2 Vpp,

120

Ω EPON to EPOP

EPOP single ended d.c. level

1.7

V

1.9

V

V

EPOP single ended a.c. level

– 20

dB

EPON single ended distortion

1

% THD

Output = 2 Vpp

EPON & EPOP differential gain

11.5

12

12.5

dB

150

Ω (± 20 %) EPON to EPOP

EPOP differential distortion

1

%THD

Output = 4 Vpp, EPH1 = 1, EPH0 = 1

Earpiece mute switch attenuation

40

dB

EPH0 = 0 & EHP1 = 0

EPON external mode:

64

Ω (± 20 %) + 3.3 µF to GND,

EPON gain relative to EAMPI

5.5

6.5

dB

EAMPFB open, Input = HFGIN

EPON distortion

1

% THD

Output = 1.1 Vpp

EPOP output current external mode

– 10

10

µA

At V

EPON & EPOP mute

– 40

dB

EPH1 = 0, EPH0 = 0

EPOP Noise

– 80

dBV

EPH1 = 1, EPH0 = 1

Transmit Data Path

TX Data Filter 16 kHz & 20 kHz

Input bias at DATI

V

V

Internally tied via 800 k

Ω resistor to

V

Nominal gain

- 6.5

- 6

- 5.5

dB

Input = 1 Vrms

Distortion

1.5

%THD

Output = 1.5 Vp-p

Noise

-60

dBV

BW = 30 Hz to 30 kHz

DATM mute switch attenuation

40

dB

Data Filter frequency response

16 kHz (TACS)

– 0.3

0.3

dB

f = 676 Hz, 1040 Hz

– 0.3

0.3

dB

f = 4120 Hz

– 0.1

– 0.7

dB

f = 12120 Hz

– 0.9

– 1.6

dB

f = 13960 Hz

– 2.5

– 1.5

dB

f = 14950 Hz

DATM = 1

– 5.0

– 2.0

dB

f = 16050 Hz

DATADEV = 0 dB

– 5.0

– 3.0

dB

f = 16420 Hz

Relative to 1040 Hz

– 6.0

– 4.0

dB

f = 17040 Hz

DATAF[1:0] = 10

– 7.0

– 5.0

dB

f = 18020 Hz

– 11.0

– 9.0

dB

f = 19990 Hz

– 12.0

– 10.0

dB

f = 20970 Hz

ELECTRICAL CHARACTERISTICS

These characteristics are guaranteed over the following conditions unless otherwise stated (Note 1):

T