TPU2735 Просмотр технического описания (PDF) - Unspecified

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производитель

TPU2735

Teletext Processor

Unspecified 

TPU 2735

3.4. Pin Circuits (pin numbers for 40-pin DIL

package)

The following figures schematically show the circuitry at

the various pins. The integrated protection structures

are not shown. The letter “E” means enhancement, the

letter “D” depletion.

DD

VSUP

E E BIAS

GND

Fig. 3–5: Pins 1 to

4, 39, 40, Inputs

E

34,

33,

32

+5 V

+0.7 V

E

E 6,7,8

0

Fig. 3–6: Pins 6 to 8

and 32 to 34, RGB

Inputs and Outputs

VSUP

E

VSUP

D

E

E

GND

VSUP

D

E

E

E

GND

VSUP

D

Fig. 3–9: Pin 14,

Input/Output

Fig. 3–10: Pin 27,

Input/Output

E

GND

VSUP

D

E

GND

Fig. 3–7: Pins 9, 17,

18, 19, 21 to 26, 28,

29, 30, Outputs

Fig. 3–8: Pins 11 to

13, 15, 16 and 38, In-

puts

E BIAS

GND

Fig. 3–11: Pin 10, 31,

Inputs

BIAS

D

D

VSUP

D

E

GND

Fig. 3–12: Pin 36,

Input

10

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