LV25200M_10 Datasheet, PDF (13/45 Pages) Sanyo Semicon Device – Single chip Tuner IC for Car Radio

Continued from preceding page.
Pin
Function
25 MPX output (LEFT)
26 MPX output (RIGHT)
LV25200M
Discription
MPX output
Output impedance changed over with the
de-Emphasis changeover Bit (IN3-4 D20)
Low=3.3kΩ
High=5kΩ
(The figure in the right shows a case of 5kΩ.)
(50/75μs changeover with the external capacity of
0.015μF)
Unit (Resistance: Ω, Capacitance: F)
Internal Equivalent Circuit
27
VCC2 (5V)
VCC for PLL and Digital system VCC
28 SNC control input pin With the pin 28 input voltage, the attenuation of
(L-R) Decode is controlled.
↓
Decrease Separation.
↓
The noise felt in the Stereo mode is reduced.
(Threshold can be controlled with 5Bit.)
29 HCC control input pin With the pin 29 input voltage, attenuation of the
high pass component is controlled.
↓
At weak input, high pass is cut to reduce the noise
feeling.
Same control for FM/AM HCC
(f characteristics changed over automatically
between AM and FM modes.)
(Threshold can be controlled with 5Bit.)
30 Phase-Comparator for
31 MPX
32 GND
33 NC-Gate
Trigger-OUT
Normal: High (VDD potential)
Gate: Low (0V)
Note)
Monitor output is not made unless the Bit setting of
Pilot-Cancel is set to 11 (PICAN=OFF).
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