LA3450 View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LA3450

PLL FM MPX Stereo Demodulator with Adjustment-Free VCO and Measure Against Adjacent Channel Interference

SANYO -> Panasonic 

LA3450

8. VO – IO characteristic at pin 27

Fig. 4 shows VO – IO characteristic at pin 27 (IO : Capable of being drawn to the outside)

Maximum current : 3mA

9. Feedback resistance of post amplifier and total gain, de-emphasis constants

Table 2 shows the feedback resistance of post amplifier and the total gain, de-emphasis constants.

R4 (R5)

Total gain

C12 (C11) 50µs

C12 (C11) 50µs

33kΩ

0dB

1500pF

2200pF

39kΩ

1.5dB

1200pF

2000pF

51kΩ

4dB

1000pF

1500pF

62kΩ

5.5dB

750pF

1200pF

82kΩ

8dB

620pF

910pF

100kΩ

10dB

510pF

750pF

130kΩ

12dB

390pF

560pF

150kΩ

13dB

330pF

510pF

180kΩ

15dB

270pF

390pF

Total gain : At monaural mode, R4 · C12=R5 · C11=50µs, 75µs

Table 2. Feedback resistance of post amplifier and of total gain, de-emphasis constants

10. Low-pass filter

Figs. 5, 6 show a sample circuit configuration and characteristic of the low-pass filter.

Fig. 5 Sample Circuit of LC Filter

No.2393–10/15

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