HIT HA12166F, HA12165, HA12164, HA12163, HA12160 Datasheet
HA12163 Series
Audio Signal Processor for Car Deck and Cassette Deck
(Dolby B-type NR with PB Amp)
ADE-207-059C (Z)
4th Edition
Jun. 1999
Description
HA12163 series are silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor
and PB equalizer system in one chip.
Functions
• PB equalizer × 2 channel
• Dolby B-NR × 2 channel
• Music sensor × 1 channel
Features
• Different type of PB equalizer characteristics selection (normal/chrome or metal) is available with fully
electronic control switching built-in.
• 2 type of input selection (radio/tape) is available.
• Changeable to forward, reverse-mode for PB head with fully electronic control switching built-in.
• Available to change music sensing level by external resistor.
• Music sensing level selection is available with fully electronic control switching built-in.
• Available to change frequency response of music sensor.
• NR-on/off and REC/PB fully electron ic co ntrol switching built-in.
• 4 type of PB-out level.
• Available to allow common PCB designs with HA12173 series.
* Dolby is a trademark of Dolby Laboratories Licensing Corporation.
A license from Dolby Laboratories Licensing Co r por ation is required for the use of this IC.
HA12163 Series
Ordering Information
PB-OUT level Dolby level REC-OUT level Unit Package
HA12163 300 300 300 mVrms FP–56
HA12166F FP–48
HA12164 450 300 300 mVrms FP–56
HA12165 580 300 300 mVrms FP–56
HA12160 550 300 300 mVrms FP–56
Notes: 1. PB-OUT level above shown is typical value when adjusting Dolby level at Rec-out with NR-off
mode.
2. HA12166F is only changes by package from HA12163. It is the same electrical characteristics
that HA12163.
Absolute Maximum Ratings
Item Symbol Ratings Unit
Supply voltage VCC max 16 V
Power dissipation*
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –55 to +125 °C
Notes: 1. Value at Ta ≤ 85°C
2. HA12166F = 360 mW
1
Pd 400*
2
mW
Operating Voltage Range
Type Min Max Unit
HA12163, HA12166F 6.5 16 V
HA12164 7.2 16 V
HA12165 8.5 16 V
HA12160 8.2 16 V
Note: 1. The minimum operating voltage of HA12163 series are different from the HA12173 series (Dolby
B/C–type).
Rev.4, Jun. 1999, page 2 of 66
Block Diagram (HA12163/164/165/160)
HA12163 Series
EQOUT(L)
RADIO
IN(L)
+
PBOUT(L)
RECOUT(L)
42 41 40 39 38 37 36 35 34 33 32 31 30 29
43
120/70
RIP
44
45
46
47
V (L)
REF
T/R
R/F
DOLBY B-NR
+
–
48
GND
49
GND
50
+
–
LPF
–
+
MS AMP
51
V (R)
52
REF
53
54
55
120/70
56
EQOUT(R)
R/F
–
+
BIAS
T/R
DOLBY B-NR
MS VREF
DET
MS GND
MS V
CC
V
CC
D GND
1413121110987654132
28
27
26
25
24
23
22
MS OUT
21
20
MS GV (S/R)
19
F/R
18
120 µ/70 µ
17
TAPE/RADIO
16
REC/PB
15
NR ON/OFF
+
V
CC
To Microcomputer
From
Microcomputer
IN(R)
PBOUT(R)RADIO
RECOUT(R)
Rev.4, Jun. 1999, page 3 of 66
HA12163 Series
Block Diagram (HA12166F)
RADIO
IN(L)
PBOUT(L)
RECOUT(L)
36
37
120/70
38
39
40
VREF(L)
41
42
GND
GND
43
44
45
VREF(R)
46
47
120/70
48
EQOUT(R)
EQOUT(L)
–
F/R
F/R
–
+
33
4
T/R
T/R
32
+
–
5
34
35 31 30
RIP
+
×1
×1
+
BIAS
29 27 26
DOLBY B-NR
LPF
DOLBY B-NR
8761 32
28
MS VREF
MS AMP.
–
+
9
25
24
MS GND
S/R
23
22
21
MS V
20
DET
CC
V
CC
19
18
17
D GND
16
15
14
13
10
1211
ON/OFF
+
MS OUT
MS GV (S/R)
F/R
120 µ/70 µ
TAPE/RADIO
REC/PB
V
CC
To Microcomputer
From
Microcomputer
Rev.4, Jun. 1999, page 4 of 66
RADIO
IN(R)
PBOUT(R)
RECOUT(R)
HA12163 Series
Electrical Characteristics (Ta = 25°C Dolby level 300 mVrms (Rec-out pin))
HA12163, HA12166F VCC = 9.0 V HA12164 VCC = 9.0 V
HA12165 V
Item Symbol Min Typ Max Unit Test conditions Note
Quiescent current I
Input HA12163 GvIA TAI 18.5 20.0 21.5 dB Vin = 0 dB, f = 1 kHz
amp HA12166F GvIA RAI 15.5 17.0 18.5
gain HA12164 GvIA TAI 22.0 23.5 25.0 Vin = 0 dB, f = 1 kHz
B-type encode ENC –2k (1) 2.8 4.3 5.8 dB Vin = –20 dB, f = 2 kHz
Boost ENC –2k (2) 7.0 8.5 10.0 Vin = –30 dB, f = 2 kHz
Signal handling Vo max 12.0 13.0 — dB THD = 1%, f = 1 kHz *1
Signal to noise
ratio
THD THD — 0.05 0.3 % Vin = 0 dB, f = 1 kHz
Channel CT RL (1) 70.0 85.0 — dB Vin = 0 dB, f = 1 kHz RAI input
separation CT RL (2) 50.0 60.0 — Vin = 0.6 mVrms, f = 1 kHz EQ input
Crosstalk CT EQ → RAI 70.0 80.0 — EQ input
PB - EQ gain Gv EQ 1k 37.0 40.0 43.0 dB Vin = 0.6 mVrms, f = 1 kHz 120 µ
PB - EQ maximum
output
PB - EQ THD THD - EQ — 0.05 0.3 % Vin = 0.6 mVrms, f = 1 kHz
Noise voltage level
converted in input
MS sensing level VON (1) –36.0 –32.0 –28.0 dB f = 5 kHz, Normal speed
= 12 V HA12160 VCC = 9.0 V
CC
Q
6.0 11.0 17.0 mA No input No Signal
GvIA RAI 19.0 20.5 22.0
HA12165 GvIA TAI 24.2 25.7 27.2 Vin = 0 dB, f = 1 kHz
GvIA RAI 21.2 22.7 24.2
HA12160 GvIA TAI 23.7 25.2 26.7 Vin = 0 dB, f = 1 kHz
GvIA RAI 20.7 22.2 23.7
ENC –5k (1) 1.7 3.2 4.7 Vin = –20 dB, f = 5 kHz
ENC –5k (2) 6.7 8.2 9.7 Vin = –30 dB, f = 5 kHz
S/N 64.0 70.0 — dB Rg = 5.1 kΩ, CCIR/ARM
CT RAI → EQ 50.0 60.0 — Vin = 0 dB, f = 1 kHz RAI input
Gv EQ 10k (1) 33.0 36.0 39.0 Vin = 0.6 mVrms, f = 10 kHz
Gv EQ 10k (2) 29.0 32.0 35.0 70 µ
VoM 300 600 — mVrms THD = 1%, f = 1 kHz *1
V
N
— 0.7 1.5 µVrms Rg = 680 Ω, DIN - AUDIO
VON (2) –18.0 –14.0 –10.0 f = 5 kHz, High speed
NR-ON,70 µ
Rev.4, Jun. 1999, page 5 of 66
HA12163 Series
Electrical Characteristics (Ta = 25°C Dolby level 300 mVrms (Rec-out pin)) (cont)
HA12163, HA12166F VCC = 9.0 V HA12164 VCC = 9.0 V
HA12165 V
Item Symbol Min Typ Max Unit Test conditions Note
MS output low
level
MS output leak
current
Control voltage V
Note: 1. HA12163 HA12166F VCC = 6.5 V, HA12164 VCC = 7.2 V, HA12165 VCC = 8.5 V,HA12160 VCC = 8.2
= 12 V HA12160 VCC = 9.0 V
CC
V
OL
I
OH
IL
V
IH
—1.01.5V
—0.02.0µA
–0.2 — 1.5 V
3.5 — 5.3
V
Rev.4, Jun. 1999, page 6 of 66
Test Circuit
HA12163/164/165/160
HA12163 Series
5 V
DC SOURCE1
C29
+
R27
330 k
R28
18 k
R26
33 k
A GND
100 µ
+
0.33 µ
C13
R24
330 k
C14
0.01 µ
R25
47 k
C28
4700 p
+
C15
2.2 µ
C17
CC
V
CC
MS
V
MS
DET
MSI
MA
OUT
MS
GND
FFI NOI
MS
VREF
(L)
REC
OUT
N.C.
0.1 µ
(L)
NR
DET
Note) The capacitor(C29) should
be connected.
It's recommended to be
connected close to the IC.
MS
2120
OUT
D
GND
GV
MS
F/R
/70µ
120µ
TAPE/
RADIO
/PB
REC
ON/
OFF
N.C.
(R)
REC
OUT
N.C.
(R)
NR
DET
SW1SW2
R22
22 k
1918
R21
22 k
SW3SW4
R20
22 k
17
R19
22 k
+
16
SW5
R18
22 k
C33
22 µ
1514131211109876543215655545352
R17
22 k
SW6
+
C32
22 µ
+
C10
0.1 µ
R23
3.9 k
PB REC 120 µ 70 µ SER REP
C12
2.2 µ
DC SOURCE2
SW13 SW12 SW11 SW10 SW9 SW8
OFF ON TAP RAD FOR REV
DC VM1
SW22
SW21
OFF
ON
EQOUT(L)
RECOUT(L)
SW24
PBOUT(L)
LR
SW23
EQOUT(L)
PBOUT(L)
RECOUT(L)
R29
10 k
DC SOURCE3 5 V
MSOUT
RECOUT(R)
PBOUT(R)
SW18
D GND
EQOUT(R)
L
R
RECOUT(R)
PBOUT(R)
SW19 SW20
EQOUT(R)
R15
10 k
AC VM2
ANALYZER
DISTORTION
OSCILLO SCOPE
NOISE METER
NOISE METER
Ω
Note
1) Resistor tolerance are ±1%
2) Capacitor tolerance are±1%
3) Unit R: C: F
with CCIR/ARM filter
and DIN-AUDIO filter
N.C.N.C.N.C.
N.C. N.C. N.C.
(L)
PB
PB
R30
10 k
RAI(L)
R33
EQIR(L)
SW25
+
N.C.
C19
2.2 µ
RAI
C23
0.47 µ
5.1 k
++
RIP
C22
1 µ
R34
EQIF(L)
5.1 k
R35
5.1 k
R38
330 k
R39
180
R40
R41
C27
TAI
C24
0.1 µ
N.C.
EQ
R36
12 k
R37
18 k
C25
EQ
0.01 µ
NFI
680
RIN
+
C26
22 µ
VREF
680
FIN
22 µ
49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 3334 32 31 30 29 28 27 26 25 24 23 22
GND
(R)
OUT
OUT
N.C.
(L)
HA12163/4/5/0 (PB 1 CHIP)
(R)
RAI
+
C8
2.2 µ
+
BIAS
(L)
(R)
OUT
OUT-M
(L)
(L)
(L)
(L)
TAI
N.C.
(L)
(R)
EQ
OUT
(L)
(R)
EQ
OUT-M
(R)
NFI
(R)
RIN
(R)
VREF
(R)
FIN
GND
C4
0.1 µ
R8
R6
18 k
C3
0.01 µ
C2
22 µ
51
50
R14
10 k
R10
R9
5.1 k
R5
R3
330 k
180
EQIF(R)
SW16
EQIR(R)
RAI(R)
LR
SW15
5.1 k
AC VM1 AUDIO SG
ON OFF
SW17
C5
0.47 µ
R11
18 k
5.1 k
R7
12 k
R2
680
++
R1
680
C1
22 µ
Rev.4, Jun. 1999, page 7 of 66
HA12163 Series
HA12166F
5 V
R29
R30
EQOUT(L)
10 k
10 k
SW22
PBOUT(L)
ON
RECOUT(L)
DC VM1
SW21
SW24
SW23
EQOUT(L)
OFF
LR
PBOUT(L)
RECOUT(L)
RAI(L)
DC SOURCE1
R27
330 k
R28
18 k
R33
5.1 k
EQIR(L)
EQIF(L)
SW25
R26
R34
R35
R38
R39
C29
100 µ
+
+
R25
33 k
C15
2.2 µ
C19
5.1 k
5.1 k
330 k
180
A GND
C13
R24
330 k
C14
0.01 µ
47 k
C28
4700 p
+
2.2 µ
+
C23
0.47 µ
++
C22
1 µ
R36
12 k
C25
0.01 µ
R40
680
+
C26
22 µ
R41
680
C27
22 µ
+
0.33 µ
C17
D GND
DC SOURCE2
SW13 SW12 SW11 SW10 SW9 SW8
EQIR(R)
RAI(R)
LR
SW15
DC SOURCE3 5 V
L
SW18
MSOUT
RECOUT(R)
PBOUT(R)
EQOUT(R)
R
RECOUT(R)
PBOUT(R)
SW19 SW20
EQOUT(R)
AC VM2
ANALYZER
DISTORTION
OSCILLO SCOPE
NOISE METER
with CCIR/ARM filter
NOISE METER
R15
10 k
R14
10 k
R10
5.1 k
and DIN-AUDIO filter
Ω
Note
1) Resistor tolerance are ±1%
2) Capacitor tolerance are±1%
SW17
AC VM1 AUDIO SG
ON OFF
3) Unit R: C: F
Note) The capacitor(C29) should
be connected.
It's recommended to be
connected close to the IC.
CC
V
MS
MS
MSI
MA
MS
FFI NOI
MS
27 26 25 24 23 22 21 20 19
REC
0.1 µ
NR
CC
V
DET
OUT
GND
VREF
OUT
DET
MS
1817
OUT
D
GND
GV
MS
1615
F/R
14
/70µ
120µ
13
TAPE/
RADIO
/PB
121110
REC
ON/
OFF
N.C.
(L)
(L)
REC
NR
OUT
DET
987654321484746454443
(R)
(R)
R23
3.9 k
SW1SW2
R22
22 k
SER REP
R21
22 k
SW3SW4
R20
22 k
R19
22 k
120 µ 70 µ
+
SW5SW6
R18
22 k
C33
22 µ
PB REC
R17
22 k
+
C32
22 µ
OFF ON TAP RAD FOR REV
+
C10
0.1 µ
C12
2.2 µ
N.C.N.C.
C8
N.C. N.C.
(L)
PB
PB
32 3031 29 28
OUT
(L)
RAI
RIP
(L)
TAI
EQ
OUT
R37
18 k
EQ
OUT-M
(L)
NFI
(L)
RIN
(L)
VREF
(L)
FIN
41 40 39 38 37 36 35 34 33
42
GND
(R)
OUT
(R)
RAI
BIAS
(R)
TAI
HA12166 (PB 1 CHIP)
(L)
(R)
EQ
OUT
(L)
(R)
EQ
OUT-M
(R)
NFI
(R)
RIN
(R)
VREF
(R)
FIN
GND
2.2 µ
+
C5
0.47 µ
+
R11
18 k
C4
0.1 µ
R9
5.1 k
R8
5.1 k
R7
12 k
R6
18 k
R5
330 k
R3
180
C3
0.01 µ
R2
680
+
C2
22 µ
R1
680
C1
22 µ
+
EQIF(R)
SW16
Rev.4, Jun. 1999, page 8 of 66
HA12163 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value)
Pin No. Terminal DC
QFP-48 QFP-56 name Zin voltage Equivalent circuit Description
2 2 TAI 100 kΩ VCC/2 Tape input
35 41
VCC/ 2
44RAI Radio input
33 39
22 25 MSI Music sensor
rectifier input
8 10 NR DET — 2.5 V Time
constant pin
for rectifier
29 33
3 3 BIAS — 0.28 V
Reference
current input
GND
Rev.4, Jun. 1999, page 9 of 66
HA12163 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value) (cont)
Pin No. Terminal DC
QFP-48 QFP-56 name Zin voltage Equivalent circuit Description
21 24 MS DET — V
16 19 MS GV 100 kΩ —
34 40 RIP — VCC/2 Ripple filter
CC
GND
DGND
GND
Time
constant pin
for rectifier
Mode control
input
Rev.4, Jun. 1999, page 10 of 66
HA12163 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value) (cont)
Pin No. Terminal DC
QFP-48 QFP-56 name Zin voltage Equivalent circuit Description
1 43 EQ OUT — VCC/2 Equalizer
36 56
5 6 PB OUT Play back
32 37 (Decode)
27 30 MS V
23 26 MA OUT Music sensor
40 47 V
45 52 voltage buffer
9 12 REC OUT Recording
28 31 (Encode)
REF
REF
V
CC
GND
output
output
Reference
voltage buffer
output
amp output
Reference
output
output
Rev.4, Jun. 1999, page 11 of 66
HA12163 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value) (cont)
Pin No. Terminal DC
QFP-48 QFP-56 name Zin voltage Equivalent circuit Description
37 44 EQ OUT-M — VCC/2 Equalizer
48 55
18 21 MS OUT — —
V
CC
MS V
GND
CC
output
(Metal)
Music sensor
output to
MPU
D GND
19 22 V
CC
20 23 MS V
CC
—VCC— Power supply
17 20 D GND — 0.0 V — Digital (Logic)
ground
24 27 MS GND Music sensor
ground
42 49 GND Ground
43 50
Rev.4, Jun. 1999, page 12 of 66
HA12163 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value) (cont)
Pin No. Terminal DC
QFP-48 QFP-56 name Zin voltage Equivalent circuit Description
41 48 F
IN
44 51 input for
—V
/2 PB - EQ
CC
Forward
39 46 R
IN
PB - EQ
46 53 input for
Reverse
38 45 NFI Negative
47 54 feedback
terminal of
PB - EQ amp
25 28 NOI Negative
feedback
input for
Normal
speed
26 29 FFI Negative
feedback
input for FF
or REW
Rev.4, Jun. 1999, page 13 of 66
HA12163 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value) (cont)
Pin No. Terminal DC
QFP-48 QFP-56 name Zin voltage Equivalent circuit Description
11 14 ON/OFF 100 kΩ —
D GND
GND
12 15 REC/PB
13 16 TAPE/
RADIO
14 17 120 µ/70 µ
15 18 F/R
61NC ——— No
75 connection
10 7
30 8
31 9
11
13
32
34
35
36
38
42
Mode control
input
Rev.4, Jun. 1999, page 14 of 66
HA12163 Series
Application Note
1. Power Supply Range
HA12163 series are provided with four line output level, which will permit on optimum overload
margin for power supply conditions. And this series are designd to operate on single supply only.
In case of split supply use, please consult with sales engineer.
Table 1 Supply Voltage
HA12163 HA12164 HA12165 HA12160
Single supply 6.5 V to 16.0 V 7.2 V to 16.0 V 8.5 V to 16.0 V 8.2 V to 16.0 V
A. The lower limit of supply voltage depends on the line output reference level.
The minimum value of the overload margin is specified as 12 dB by Dolby Laboratories.
B. In the reverse-voltage conditions such as ‘D-GND is h ig her than V
GND’, excessive current flows into the D-GND to destory this IC. To prevent such destru ctio n, pa y
attention to the followings on using.
Short-circuit the D-GND and GND directory on the board mounting this IC.
’ or ‘D-GND is lower than
CC
2. Reference Voltage
These devices provide the reference voltage of half the supply voltage that is the signal grounds. As the
peculiarity of these devices, the capacitor for the ripple filter is very small about 1/100 compared
with their usual value. The Reference voltage are provided for the left channel and the right channel
separately. The block diagram is shown as figure 1.
47
V
(L)
52
REF
L channel
reference
Music sensor
reference
R channel
reference
(R)
V
REF
MS V30
REF
22
V
CC
RIPGND 49 50 40
+
C22
1µ
+
–
+
–
+
–
Figure 1 The Block Diagram of Reference Voltage Supply
Rev.4, Jun. 1999, page 15 of 66
HA12163 Series
3. Operating Mode Control
HA12163 series provide fully electronic switching circuits. And each operating mode control are
controlled by parallel data (DC voltage).
Table 2 Threshold Voltage (V
Pin No. Low High Unit Test conditions
14, 15, 16, 17,
18, 19
–0.2 to 1.5 3.5 to 5.3 V
)
TH
Input Pin Measure
22 k
V
Table 3 Switching Truth Table
Pin No. Low High
14 NR - OFF NR - ON
15 PB REC
16 TAPE RADIO
17 120 µ (NORMAL) 70 µ (METAL or CHROME)
18 FORWARD REVERSE
19 SER (FF or REV) REP (NORMAL SPEED)
Notes: 1. Each pins are on pulled down with 100 kΩ inter nal resi stor.
Therefore, it will be low-level when each pins are open.
2. Over shoot level and under shoot level of input signal must be the standardized (High: 5.3 V,
Low: –0.2 V)
3. When connecting microcomputer or Logic-IC with HA12163 series directly, there is apprehension
of rush-current under some transition timming of raising voltage or falling voltage at V
On using, connect protective resistors of 10 to 22 kΩ to all the control pins. It is shown is test
circuit on this data sheet. And pins fixed to low level should be preferably open.
4. Pay attention not to make digital GND voltage lower than GND voltage.
ON/OFF.
CC
Rev.4, Jun. 1999, page 16 of 66
4. Input Block Diagram and Level Diagram
R34
5.1 k
R35
5.1 k
EQ OUT
HA12163 Series
HA12163: 300 mVrms (–8.2 dBs)
HA12164: 450 mVrms (–4.7 dBs)
HA12165: 580 mVrms (–2.5 dBs)
HA12160: 550 mVrms (–2.9 dBs)
C24
0.1µ
RAITAI PBOUT
42.4 mVrms
(–25.2 dBs)
INPUT AMP.
+
NR circuit
–
The each level shown above is typical value
when offering PBOUT level to PBOUT pin.
(EQ AMP Gv = 40 dB f = 1 kHz)
R39
180
R38
330 k
R36
12 k
R37
18 k
C25
0.01µ
EQ OUT-M
EQ AMP.
NFI
R
IN
V
REF
F
IN
30 mVrms
(–28.2 dBs)
+–
0.6 mVrms
(–62.2 dBs)
Figure 2 Input Block Diagram
5. Adjustment of Playback Dolby Level
After replace R34 and R35 with a half-fix volume of 10 kΩ, adjust RECOUT level to be Dolby level
with playback mode.
RECOUT
300 mVrms
(–8.2 dBs)
Rev.4, Jun. 1999, page 17 of 66
HA12163 Series
6. Note on Connecting with Tape Head to IC
This IC has no internal resistor to give the DC bias current to equalizer amp, therefore the DC bias
current will give through the head. This IC provides the Vref buffer output pin for Rch and Lch
separately (has two Vref terminal). In case of use that the Rch and Lch reference of head are
connected commonly, please use one of Vref terminals of IC (47 pin or 52 pin) for head reference.
If both 47 pin and 52 pin of IC are connected, rush current give the great damage to IC. The
application circuit is shown in figure 3.
43
44
45
46
47
48
49
50
51
52
53
54
55
V (L)
REF
GND
GND
V (R)
REF
R/F
R/F
–
– +
+
Rev.4, Jun. 1999, page 18 of 66
56
Figure 3 Application Circuit
7. The Sensitivity Adjustment of a Music Sensor
Adjusting MS AMP gain by external resistor, the sensitivity of music sensor can set up.
HA12163 Series
TAI (L)
X1
–6 dB
X1
TAI (R)
R28 R27
R26 R25
C28
4700 p
MS
V
REF
L·R signal addition circuit
+
LPF
–
26 dB
25 kHz MS AMP.
Figure 4 Music Sensor Block Diagram
C14
0.01 µ
FFI NOI MA
OUT
+
–
V
CC
R24
330 k
MSI MS
DET
DET
100 k
+
C13
0.33 µ
MS OUT
D GND
DV
CC
I
L
R
L
Microcomputer
D GND
Gv
[dB]
Gv1
Gv2
f
1
Normal speed
f
3
FF or REV
1 k10010 10 k 25 k 100 k
f [Hz]
Figure 5 Frequency Response
f
2
f
4
Rev.4, Jun. 1999, page 19 of 66
HA12163 Series
A. Normal mode
R27
⋅π ⋅
C14⋅100 k
1
Gv1 = 20log 1+
f1=
2
B. FF or REW mode
Gv2 = 20 log 1+
=
f3
2⋅π⋅C28⋅R26
1
A standard level of TAI pin is 30 mVrms and the gain for TAI to MS AMP input is 10, therefore,
the other channel sensitivity of music sensor ( S) is computed by the formula mentioned below.
C
S=20 log
⋅
30
A = MS AMP. gain (B dB)
C = The sensing level of music sensor
S = –7.3–B [dB] C = 130 mVrms (typ.)
S is 6 dB up in case of the both channels.
[dB]
R28
[Hz], f 2=25 k[Hz]
R25
[dB]
R26
[Hz],f4=25k [Hz]
1
[dB]
10⋅ A
8. Music Sensor Output (MS OUT)
As for the internal circuit of music sensor block, music sensor output pin is connected to the collector of
NPN Type directly, therefore, output level will be “high” when sensing no sign a l. An d output level
will be “low” when sensing signal.
Connection with microcomputer, design I
– MSOUTLo*
DV
I
L
CC
=
R
L
at 1 mA typ.
L
* MSOUTLo: sensing signal (about 1 V)
Notes: 1. Supply voltage of MS OUT pin must be less than V
2. MS V
pin and VCC pin are required the same voltage.
CC
voltage.
CC
Rev.4, Jun. 1999, page 20 of 66
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