TDA7338

4/12

3.1 NOTES TO THE CHARACTERISTICS

1) INTERMODULATION SUPPRESSION

measured with : 91% mono signal; 9% pilot signal; fm=10KHz or 13KHz

2) TRAFFIC RADIO (V.F.) suppression

measured with : 91% stereo signal; 9% pilot signal; fm=1KHz; 5% subcarrier

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

STEREO BLEND

Control Voltage for Channel

Separation

-0.31

-0.27

-0.23

V

Control Voltage for Channel

Separation

α = 26dB;

-85

-55

-30

mV

HIGH CUT CONTROL

De-Emphasis Time Constant

435057

µs

High Cut Control Resistance

435057

K

Ω

High Cut Control Resistance

115

150

185

K

Ω

VCO

Oscillator Frequency

with Murata CSB456F11

456

KHz

∆f/f

Capture and Holding Range

±1

%

Pin 7

0.6

V

Trigger Threshold (note 6)

180

mV

250

mV

Trigger Threshold

260

mV

340

mV

Suppression Pulse Duration

50

µs

Input Offset Current during

suppression time

10

pA

0.7

1.0

1.3

V

1.1

1.5

2

V

1.7

2.3

2.8

V

Table 4.

α2

V

() at1KHz

()

V

() at1KHz

()

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

=

α3

V

() at1KHz

()

V

() at1KHz

()

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

=

α57 V.W.F.

()

V

() at1KHz

()

V

() at1KHz 23KHz

±

()

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

=