JVC CA-MXG9BK - FM MPX Detector IC (IC105); IC105 Functions and Pin Details

RX-MXG9BK
M 1LA3401 (iC105) : FM MPX Detector
1. The main function descriptions
(1) Detect the FM multiplex signal (Stereo signal ).
| (2) When receiving FM stereo signal, it outputs the signal for indication.
(3) AM/FM audio amplifier.
2. Terminal Layout 3. Block Diagram Ti+ MONO} r i> op 1
Coes Z i ee i
PLL Mute Mute
i vcc vVco LPF LPF in LPF LPF in Cont STEREO GND
2 17)
cael ves a °K) LO) Cd LQG ES ea! ae
sv
ne
;
Pe
Fsreneo
|
mor} 3 Le IMONO=H |
LouT] 5 PILOT IN a VCO Stop
LIN] 6 L.P.F. I Symmetrical ee ae
;
RIN|
7
L.P.F.
|
Reactance
| Rout] 8 MUTE IN | rey oa A racer pe
Fam
|
10
STEREO
r
\
38
kHz
90°
0°
Switch
MUTE OUT | 11 GND )
l oy
/ i
Muting Control Muting
FM AM Selection fe se Oo
Muting
L
I
I
I FM AM Change
I
I
I
I
VCC on
Muting
4
> ri AM]
it FM d
ut
ut
ee ee met nae |
14 | 5 | 6 | (s} Ts] 14
AM in FM in Pilot Separ. L out Post Amp. in. R out Mute Fm/AM Mute
out Adj. L R Cont Change over out
4. Pin Functions
[amin [1 | The an input teminal fora agra SCS
2 [Fn [1 [this & an input terminal for FM compost signal SSCS
3 _[ Por oF [0 | ouput of MPx pilot signal Connect to Pini® SSCS
[sepa ADL [=| Separation adsment. OOS
Input terminal of the left channel post-amplifier
7 = ae Input terminal of the right channel post-amplifier
R. OUT Right channel signal output
0
Ground terminal.
| O|
jt
i
| O|
| ~ | The mute time is controlled by the connected capacitor when turning the power switch on. |
Pt | > FM
C=
=
3 | STEREO | 0 | Stereo indicator output. Stereo: “L", Mono: "H"
Ea
ical
bal
Ei
| |
Ee
he
fits
ea
Change over the FM/AM input. “H" > AM, me ea
1 Not used
1
14 MUTE CONT The mute time is controlled by the connected capacitor when changing over the FM/AM .
1
15 MUTE IN Mute signal input. “H":Mute on, “L” : Mute off.
LP
L
F
F
ie)
Vec
—_ =
a N
Low pass filter of pilot detector.
P While this terminal goes to “H“, the VCO stops.
18 Pilot signal input
Low-pass filter of PLL.
20 Low-pass filter of PLL.
| Voc
Voltage controlled oscillator terminal.
N — — ~
22 Power supply.
(No.20434) 1-47