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9/34

TDA7407D

carrier (f = 57kHz, fm = 23Hz AM, m = 60%)

3. SCA ( Subsidiary Communications Authorization ) measured with: 81% mono signal; 9% pilot signal;

fm = 1kHz; 10%SCA - subcarrier ( fs = 67kHz, unmodulated ).

4. ACI ( Adjacent Channel Interference ):

measured with: 90% mono signal; 9% pilot signal; fm =1kHz; 1% spurious signal( fs = 110kHz or 186kHz,

unmodulated).

5

NOISE BLANKER PART

Table 8. ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

NBT = 111

(c)

30

(c)

NBT = 110

(c)

35

(c)

NBT = 101

(c)

40

(c)

NBT = 100

(c)

45

(c)

NBT = 011

(c)

50

(c)

NBT = 010

(c)

55

(c)

NBT = 001

(c)

60

(c)

NBT = 000

(c)

65

(c)

NCT = 00

(c)

260

(c)

NCT = 01

(c)

220

(c)

NCT = 10

(c)

180

(c)

NCT = 11

(c)

140

(c)

Rectifier Voltage

0.5

0.9

1.3

V

1.5

1.7

2.1

V

2.2

2.5

2.9

V

α57 V.W > F.

()

V

O signal

() at1kHz

()

V

O spurious

() at1kHz 23kHz

±

()

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

=

α67

V

O signal

() at1kHz

()

V

O spurious

() at9kHz

()

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

=

α114

V

O signal

() at1kHz

()

V

O spurious

() at4kHz

()

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

=

α114

V

O signal

() at1kHz

()

V

O spurious

() at4kHz

()

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

=

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