FN561 Datasheet, PDF (3/8 Pages) Intersil Corporation – OBSOLETE PRODUCT NO RECOMMENDED REPLACEMENT

CA3089
Test Circuits
L
(NOTE 5)
V+ = 12V
22µH C
5K
0.05µF
11
8
100
pF
SIGNAL
INPUT
VOLTAGE
0.01µF
1
9
3.9K
10
51
7 ^{AFC OUTPUT}
3
CA3089E
2.7K
6
AUDIO
OUT
0.01
µF
0.02
12
5
0.01
µF
µF
2
13
470
0.001
15
µF
14 ^0.001
4 ₁₀
µF
33K
120K ^0.33µF
K
0.5M
150µA
TUNING METER
FULL
SCALE
NOTES:
4. All resistance values are in ohms.
5. L tunes with 100pF (C) at 10.7MHz.
6. Q₀ (unloaded) ≅ 75 (G.I. Automatic Mfg. Div. EX22741 or equivalent)
FIGURE 3. TEST CIRCUIT FOR CA3089E USING A SINGLE-
TUNED DETECTOR COIL
3K
100
pF
C₁
V+ = 12V
22µH C₂
T (NOTE 8)
5K
0.05µF 11
100
8
pF
SIGNAL
INPUT
VOLTAGE
0.01µF
1
9
8.2K
10
51
7 ^{AFC OUTPUT}
3
CA3089E
2.7K
6
AUDIO
OUT
0.01
µF
0.02
12
0.01
5
µF
µF
2
13
470
0.001
15
µF
14 ^0.001
4 ₁₀
µF
33K
120K ^0.33µF
K
0.5M
150µA
TUNING METER
FULL
SCALE
NOTES:
7. All resistance values are in ohms.
8. T PRI. - Q₀ (unloaded) ≅ 75 (tunes with 100pF (C₁) 20↑ of 34e on
7_{/32” dia. form).}
9. S_7/E32C”.d-iaQ._0fo(rumn)lo. aded) ≅ 75 (tunes with 100pF (C₂) 20↑ of 34e on
10. kQ (percent of critical coupling) ≅ 70%.
(Adjusted for coil voltage V_C) = 150mV.
Above values permit proper operation of mute (squelch) circuit
“E” type slugs, spacing 4mm.
FIGURE 4. TEST CIRCUIT FOR CA3089E USING A DOUBLE-
TUNED DETECTOR COIL
Test Applications
300Ω
FM
INPUT TUNER
(NOTE 12)
100
0.01µF
220pF 250pF
IF OUT
CERAMIC
FILTER
(NOTE 13)
NOTES:
11. All resistance values are in ohms.
0.05µF
330
V+ = 12V
L (NOTE 14)
100pF
C
22
11 ^{µH 3.9K}
8
1
9
10
2.7K
3 _CA3008899EE
6
0.01µF
2
14
4
AUDIO
OUT
12. Waller 4SN3FIC or equivalent.
13. Murata SFG 10.7mA or equivalent.
14. L tunes with 100pF (C) at 10.7MHz Q₀ unloaded ≅ 75
(G.I. EX22741 or equivalent).
Performance Data at f_O = 98MHz, f_MOD = 400Hz, Deviation = ±75kHz:
-3dB Limiting Sensitivity . . . . . . . . . . . . . . . . . . 2µV (Antenna Level)
20dB Quieting Sensitivity . . . . . . . . . . . . . . . . . 1µV (Antenna Level)
30dB Quieting Sensitivity . . . . . . . . . . . . . . . .1.5µV (Antenna Level)
FIGURE 5. TYPICAL FM TUNER USING THE CA3089E WITH A SINGLE TUNED DETECTOR COIL
3