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PDF HA12216F Data sheet ( Hoja de datos )
| Número de pieza | HA12216F | |
| Descripción | Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.) | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HA12216F/HA12221F Series
Audio Signal Processor for Car Deck
(Decode only Dolby B type NR with PB Amp.)
ADE-207-254E (Z)
6th Edition
Dec. 2000
Description
HA12216F/HA12221F series are silicon monolithic bipolar IC providing Dolby B type noise reduction,
music sensor, PB equalizer system in one chip.
Note: 1. Dolby is a trademark of Dolby Laboratories Licensing Corporation.
A license from Dolby Laboratories Licensing Corporation is required for the use of this IC.
2. HA12221F series does not include Dolby B NR.
Functions
• PB equalizer
× 2 channel
• Music sensor
× 1 channel
• Dolby B NR (Only HA12216F series) × 2 channel
• Line mute (Tape radio) SW
× 2 channel
Features
• Different type of PB equalizer characteristics selection (120 µs/70 µs) is available with fully electronic
control switching built-in.
• Changeable to Forward, Reverse-mode for PB head with fully electronic control switching built-in.
• Available to change music sensing level by external resistor.
• Available to change response of music sensor by external capacitor.
• Music sensing level, built-in switch to change a band (MSGV).
• NR ON/OFF fully electronic control switching built-in. (Only HA12216F series)
• Line mute (Tape radio) control switching built-in.
• Available to connect direct with MPU.
• These ICs are strong for a cellular phone noise. (18 dB improvement from HA12163)
1 page  
HA12216F/HA12221F Series
Pin Description, Equivalent Circuit (VCC = 9 V, A system of single supply voltage,
Ta = 25°C, No Signal, The value in the show typical value.) (cont)
Pin No. Terminal Name Note
34 FIN (L)
—
Equivalent Circuit
Pin Description
Equalizer intput
(Forward)
V
37 FIN (R)
32 RIN (L)
39 RIN (R)
31 NFI (L)
40 NFI (R)
10 T/R (Mute)
—
Equalizer intput
(Reverse)
Negative feedback
Mode control input
11 *2
12
13
14
15
NR ON/OFF
120/70
F/R
S/R (MS GV)
MSOUT
—
22 k
100 k
GND
MS VCC
I
MS output (to MPU) *1
20 MS GV (R)
V = VCC/2
200 100k
D GND
V
90k
21
35
36
Note:
MS GV (S)
GND
—
1. MS: Music Sensor
2. Non connection regarding HA12221F series.
MS gain terminal *1
GND pin
Rev.6, Dec. 2000, page 5 of 53
5 Page 
HA12216F/HA12221F Series
The Sensitivity Adjustment of Music Sensor
Adjusting MS Amp. gain by external resistor, the sensitivity of music sensor can set up. The music sensor
block diagram is shown in figure 4, and frequency response is shown in figure 5.
CEX2
REX2
VCC
+CEX1
REX1
C8
0.01µF
R11
330kΩ
+ C6
0.33µF
DVCC
28 TAI (L)
×1
21 20
19 18
MS MS MA MSI
SER REP OUT
17
MS
DET
L⋅R signal
addition circuit
−6dB +
− LPF
25kHz
20dB
90kΩ
−
+
MS
Amp.
×1
TAI (R)
3
DET
100kΩ
MSOUT
15
GND
36
35
RL
Micro
computer
Figure 4 Music Sensor Block Diagram
GV2
f3
f4
Repeat mode (REP)
GV1
f1 f2
Search mode (SER)
10 100 1k 10k 25k 100k
f (Hz)
Figure 5 Frequency Response
Rev.6, Dec. 2000, page 11 of 53
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HA12216F.PDF ] | |
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