11

ACE9040

ELECTRICAL CHARACTERISTICS

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

T

Characteristic

Value

Unit

Conditions

Min.

Typ.

Max.

Handsfree Rectifiers

Attack time

1

ms

Capacitors to GND =

Decay time

35

ms

68 nF at TXC & RXC pins

TX nominal output levels:

V

d.c. offset

0.3

0.5

V

Input at IPS = 0 mVrms

a.c. level

1.4

1.5

1.6

V

Input at IPS = 40 mVrms, 1 kHz

INPSENSE = 0 dB, HFS = 0

HFP = 1

RX nominal output levels:

V

d.c. offset

0.3

0.5

V

Input at HFGIN = 0 mVrms

a.c. level

1

1.1

1.2

V

Input at HFGIN = 100 mVrms, 1 kHz

HFS =1, HFP = 1

Voltage Outputs

DEC & BIAS output voltage

1.70

(V

1.9

V

V

GND at DEC pin

Microphone Bias:

Source 1 mA

2.7

2.9

V

MLI = 0, MIS = 1, V

Sink 1 mA

2.7

2.9

V

MLI = 0, MIS = 1, PD = 0

Microphone disabled

– 0.1

0.10

V

MLI = 0, MIS = 0

External Reference Resistor

100

k

Ω

V

connected from pin RREF to GND

68

k

Ω

V

Bandgap at BGAP

1.10

1.35

V

LVN Supply Voltage Comparator

Default condition

V

– 10

10

µA

(high at V

V

2.00

20.0

mA

(low at 0.4 V)

LVN comparator operating lower limit

1

V

of V

DD