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KKA1238NS Datasheet

  • KKA1238NS

  • FM/AM STEREO RADIORECEIVER

  • 3頁(yè)

  • KODENSHI

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TECHNICAL DATA
FM/AM STEREO RADIORECEIVER
DESCRIPTION
KKA1238NS
KKA1238NS
is a high performance one - chip bipolar ICS designed for FM/AM stereo radios. These include an FM/AM
front end, FM/AM IF amplifier, FM/AM detection output and FM stereo demodulator output. Bipolar silicon monolithic IC.
FEATURES
鈥?/div>
Low current consumption
(In FM mode I
D
= 11.0 mA, in AM mode 8.5 mA,
V
CC
= 6.0V).
鈥?/div>
Built - in LED drive circuit for tuning.
鈥?/div>
Built - in LED drive circuit for stereo indicator.
鈥?/div>
Built - in detune muting circuit for the FM band.
鈥?/div>
Few external parts.
ELECTRICAL CHARACTERISTICS
(T
A
= 25擄C)
Symbol
I
D1/D2
G
V1
V
D1/D3
V
D2
T
HD1/HD2
G
V2
G
V3
SEP
VI
1
A
1
Parameter
AM/FM circuit current
FM front end voltage gain
FM/AM detection output level
FM IF knee level
FM/AM detection output
distortion factor
AM front end voltage gain
AM IF voltage gain
Separation
M/ST switching level by IF
input
FM Mute
Vin5=245mVrms,
MONO,1kHz ATT
V
IN2
= 60dBmV, 1660kHz
19
15
30
38
16
Test Conditions
No signal AM/FM
V
IN1
= 40dBmV, 100MHz
28
35
Guaranteed Limits
Min
Typ
8.5/11
35
77.5
25
0.3/0.6
24
21
40
43
23
48
30
Max
12.0/
15.0
42
138
31
2.0
28
29
mA
dB
V
RMS
dBmV
%
dB
dB
dB
dBmV
dB
Unit
1

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