STLC5445

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Notes: 1. Our characterizations show that in the range 15mA - 20mA the accuracy is ±20% over the 0°C - 70°C temperature range.

2. The longitudinal component of the signal detected by the spectrum analyzer must have an RMS voltage value, in any 4kHz equiv-

alent bandwidth, averaged in any 1 second period, not greater of the specified value (–60dBV) over the 100Hz - 150kHz range

(for details see ETSI ETR80 and ANSI 601).

3. All the output lines activated at a line current of 35mA; no current limitation condition. Rth(j-a)

≤ 20°C/W

Please note that, in order to assure the frequency stability of the output drivers, a 1

µF capacitor must always

be connected between WAn and Wbn or, as shown in Fig. 6, immediately after the resistive protection elements

used in the actual application.

SWITCHING TIMING

Figure 1.

Open circuit detector threshold

1.5

3

4

mA

OLDH

Open Loop detector Hysteresis

0.6

1.6

mA

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Output driver’s enable time

Parallel interface mode

20

µs

Output driver’s disable time

Parallel interface mode

500

µs

Frequency of CKILC

Duty cycle 60% max

Pulse width 500ns min

8

200

kHz

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

R

LIM

2664

I

LIMIT

---------------

=

1.3k

Ω ±1%

25

Ω

±0.01%

STLC5445 output driver

(one of four)

WAn

WBn

16.6Hz

30

Ω

±0.01%

20

µF ±1%

25

Ω

±0.01%

30

Ω

±0.01%

20

µF ±1%

ELECTRICAL CHARACTERISTICS (continued)