6

ACE9040

Characteristic

Value

Unit

Conditions

Min.

Typ.

Max.

Hard Deviation Limiter

Gain

13

13.5

14

dB

V485 pin = 0 V (for V

15.5

16

16.5

dB

V485 pin = V

Low Pass Filter TXLPF, PREIN to TLPO pins

Distortion

1.5

%THD

1.5 Vp-p Output level

Noise

– 60

dBV

BW = 30 Hz to 30 kHz

Frequency response TACS/AMPS

0.3

0.7

dB

f = 307 Hz

Relative to 1 kHz

– 0.5

+ 0.5

dB

f = 676 Hz, 1040 Hz

– 0.5

+ 0.5

dB

f = 1410 Hz, 1900 Hz

– 3.0

– 1.5

dB

f = 3010 Hz

– 38.0

– 13.0

dB

f = 3500 Hz

– 60.0

– 38.0

dB

f = 4120 Hz

– 60.0

– 38.0

dB

f = 5590 Hz

– 60.0

– 38.0

dB

f = 9900 Hz

– 60.0

– 35.0

dB

f = 11870 Hz

– 60.0

– 35.0

dB

f = 14950 Hz

Gain

– 8.5

– 8

– 7.5

dB

Attenuation with TXLPF bypassed

8

dB

TEST[0] = 1

Gain Stage AUDIODEV, PREIN to TLPO

Nominal gain

0

dB

Output at TLPO

Gain adjustment

- 2.8

3.2

dB

Attenuation step size

0.2

0.4

0.6

dB

Control bits: AUDEV[3:0]

TXM switch attenuation

– 60

dB

AUDIODEV = 0 dB

Combined TX path

Gain with 3.5

µV at Microphone input

33.5

37.5

dB

INSENSE = 0 dB, V485 = 0 V

Distortion

1.0

% THD

THF & AUDIODEV = 0 dB

Noise

– 55.0

dBV

MI gain = 22 dB, V

Output d.c. level

1.65

1.9

V

Compressor Bypassed

ELECTRICAL CHARACTERISTICS

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

T

–