STLC3075

18/26

RONTHA

On/hook loop resistance

threshold

ACT. mode, RTH = 32.4k

Ω 1%

(Prog. ITH = 9mA)

8k

Ω

IOFFTHI

Off/hook current threshold

Hi Z mode, RTH = 32.4k

Ω 1%

(Prog. ITH = 9mA)

10.5

mA

ROFFTHI

Off/hook loop resistance

threshold

Hi Z mode, RTH = 32.4k

Ω 1%

(Prog. ITH = 9mA)

800

Ω

IONTHI

On/hook current threshold

Hi Z mode, RTH = 32.4k

Ω 1%

(Prog. ITH = 9mA)

6mA

RONTHI

On/hook loop resistance

threshold

Hi Z mode, RTH = 32.4k

Ω 1%

(Prog. ITH = 9mA)

8k

Ω

Irt

Ring Trip detector threshold

range

RING

20

50

mA

Irta

Ring Trip detector threshold

accuracy

RING

-15

15

%

Trtd

Ring trip detection time

RING

TBD

ms

Td

Dialling distortion

ACTIVE

-1

1

ms

Loop resistance

500

Ω

ThAl

Tj for th. alarm activation

160

°C

(1) Rlrt = Maximum loop resistance (incl. telephone) for correct ring trip detection.

DIGITAL INTERFACE

INPUTS: D0, D1, D2, PD, CLK

OUTPUTS: DET

Vih

In put high voltage

2

V

Vil

Input low voltage

0.8

V

Iih

Input high current

-10

10

µA

Iil

Input low current

-10

10

µA

Vol

Output low voltage

Iol = 1mA

0.45

V

PSRR AND POWER CONSUMPTION

PSERRC

Power supply rejection Vpos to

2W port

Vripple = 100mVrms

50 to 4000Hz

26

36

dB

Ivpos

Vpos supply current @ ii = 0

HI-Z On-Hook

ACTIVE On-Hook,

RING (line open)

13

50

55

25

80

90

mA

mA

mA

Ipk

Peak current limiting accuracy

RING Off-Hook

RSENSE = 110m

Ω

-20%

950

+20%

mApk

4

ELECTRICAL CHARACTERISTICS

External components as listed in the "Typical Values" column of EXTERNAL COMPONENTS Table.

Note: Testing of all parameter is performed at 25°C. Characterisation as well as design rules used allow

correlation of tested performances at other temperatures. All parameters listed here are met in the oper-

ating range: -40 to +85°C.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit