1997 Oct 07

7

Philips Semiconductors

Product specification

Dual pre-amplifier and equalizer for

reverse tape decks

TEA0676T

Notes

1. For an application with a fixed equalization time constant of 120

µs the equalizing network may be applied completely

external. In this application the 8.2 k

must be short-circuited by fixing the equalization switch input at 70

µs (pin 15 left open-circuit). To activate the inputs

of contact between tape and tape head while switching off.

Switching thresholds

pin voltage

load current +100 to

−100 µA

−

V

input current

−180

−

+180

µA

time constant 70

µs active

1

V

time constant 120

µs active

0

−

1

pin voltage

load current +90 to

−90 µA

−

V

input current

−170

−

+170

µA

HIGH-level pin voltage

inputs INA1 and INB1 active

1

V

LOW-level pin voltage

inputs INA2 and INB2 active

0

−

1

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT