33

4872A–CORD–08/05

U4091BM-R

Offset

I4O4: 1 to 0

∆V

AMREC

±30

mV

Mute switching matrix

I4O4 = 0

60

dB

Power-on Reset

VL = 0, V

Power-on reset by ES VB high,

VMP threshold

VB = 4V, ES = 4V,

raise VMP until RESET goes to low

VMP

on

2.65

2.75

2.85

V

Power-on reset by ES VMP high,

VB threshold

VMP = 3V, ES = 4V,

raise VB until RESET goes to low

VB

on

3.2

V

Low-voltage Interrupt

VL = 0, V

VMP decreasing

Decrease VMP until INT

returns to high

VLVI

2.5

2.6

2.7

V

Power-off Reset

VL = 0, V

Low-voltage reset

Decrease VMP until RESET returns to

low

VLVR

2.35

2.45

2.55

V

Difference voltage between low-

voltage interrupt and reset

VLVI – VLVR

100

150

mV

Logical Part

V

Output impedance at OSCOUT

0.6

0.9

1.2

k

Ω

Pins SCL,

SDA (input mode)

Input leakage current

Low level

High level

0 < V

0.8

×

–1

0.2

×

V

MP

+1

V

V

µA

Pins INT,

SDA (output mode)

Output low

(resistance to GND)

150

230

350

Ω

Switch for Additional Impedance (Pin IMPSW)

V

Switch-off leakage current

0 < V

IMPSW = 0

–0.5

5

µA

Resistance to GND

IMPSW = 1

50

80

Ω

Maximum current

IMPSW = 1

–5

5

mA

ERX = ETX = ENMIC = ENSTBAL = I1O1 = I3O3 = 1, SL[0:1] = 0, LF[0:3] = 1, P[0:4] = 31, AGARX[0:2] = 0

Adjustment range of attenuation

0

50

dB

Attenuation of transmit gain

I

∆G

T

47

50

53

dB

Attenuation of speaker amplifier

I

G

SA

47

50

53

dB

18. Electrical Characteristics (Continued)

RLS = 50

Ω, Z

Parameters

Test Conditions

Symbol

Min.

Typ.

Max.

Unit

Note:

1. This is a period of time the bus requires from the end of a data transmission and before a new transmission can be started