ha12192f Renesas Electronics Corporation., ha12192f Datasheet - Page 14

• Manufacturer Part Number: ha12192f
• Description: Audio Signal Processor For Car Deck Decode Only Dolby B-type Nr With Pb Amp.
• Manufacturer: Renesas Electronics Corporation.

HA12192F/HA12197F/HA12212F Series
Product
HA12192F series
HA12197F
HA12198F
HA12199F
1. Search mode (FF or REW)
2. Repeat mode
Note: 1. Search mode: G
Item
Search mode
Repeat mode
Note: S is 6dB down in case of one-side channel. And this MS presented hysteresis lest MSOUT terminal
Rev.5, Jun. 1999, page 14 of 89
G
G
The sensitivity of music sensor (S) is computed by the formula mentioned below.
f
f
S = – G
G
1
3
V
V1
V2
=
=
IA: Input Amp. G
2π · CEX2 · REX2
2π · CEX1 · REX1
should turn over again Hi level or Lo level, in case of thresh S level constantly.
= G
= G
2. Standard level of DIN pin (Dolby level)
3. Standard sensing level of music sensor
Z =
V
V
V
IA + 20log 1 +
REX1 + REX2
IA + 20log 1 +
REX1 · REX2
*1
1
1
– 20log
REX1, 2
24k
2.7k
130
30
V
[Hz],
[Hz],
= 20dB
* 3
* 2
REX1
90k
90k
Z
V1
G
20dB
20dB
22.2dB
23.5dB
= 12.7 – G
, Repeat mode: G
f
+ ATT [dB],
f
V
4
2
IA
CEX1, 2
0.01 F
1 F
+ ATT [dB]
= 25k [Hz]
= 25k [Hz]
V
[dB]
G
33.5dB
51.6dB
V1, 2
V2
ATT
0dB
0dB
–2.2dB
–3.5dB
f
663Hz
58.9Hz
1, 3
f
25kHz
25kHz
2, 4
G
20dB
20dB
20dB
20dB
S (one-side channel)
–14.8dB
–33.0dB
V
IA + ATT