HA12179F Datasheet, PDF (38/40 Pages) Hitachi Semiconductor – Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp)

HA12179F
1000
500
200
100
50
20
Signal Sensing Time vs. Capacitance
(Music Sensor)
PBOUT
MSOUT
Ta
VCC
22
R24 +
Tr
MSDET
24
330 k
C13
Tr
10
Ta
5
2
V_CC = 9 V
f = 5 kHz
1.0
TAIin
Repeat
0.5
0 dB
–20 dB
0.2
0.005µ 0.01µ 0.02 µ 0.05µ 0.1µ 0.2 µ 0.5 µ 1µ
Capacitance C13 (F)
1000
500
200
100
50
Signal Sensing Time vs. Resistance
(Music Sensor)
PBOUT
MSOUT
Ta
VCC
22
R24
MSDET
Tr
24
+ C13
0.33µ
Recomended value of R24
is 100kΩ to 1MΩ
Tr
Ta
20
10 _{VCC = 9 V}
f = 5 kHz
TAI
5 Repeat
0 dB
–20 dB
3
20 k
50 k 100 k 200 k 500 k 1 M 2 M
Resistance R24 (Ω)
Rev.1, Apr. 1994, page 38 of 40