Pin Description, Equivalent Circuit (VCC = 9 V, A system of single supply voltage,
Ta = 25°C, No Signal, The value in the table shows typical value.) (cont.)
Pin No.Pin NameNoteEquivalent CircuitDescription
11V
19FIN(L)
18RIN(L)
3RIN(R)
2FIN(R)
9Mute
10FOR/REV
8120/70
12MS
CC
Power supply
Equalizer input
V
Mode control input
22 k
100 k
GND
MS V
I
CC
MS output (to MPU) *
200
7MS G
20GNDGND pin
Note: MS: Music Sensor
V
V = VCC/2
100 k
D GND
MS gain pin *
V
90 k
3
Page 4
HA12231FP
Block Diagram
GNDVREF
FIN(L)
RIN(L)
EQOUT(L)
TAI(L)
PBOUT(L)
RIP
+
MS DET
+
MS
CC
DV
V
CC
20191817161514
+
−
−
+
1
2345
FIN(R)
RIN(R)
I.A.
I.A.
EQOUT(R)
LPF
TAI(R)
+
MA
−
6789
PBOUT(R)
V
MS G
131211
MS
RECT
+
120/70
Mute
S/R
10
FOR/REV
4
Page 5
HA12231FP
Absolute Maximum Ratings (Ta = 25°C)
ItemSymbolRatingUnitNote
Supply voltageV
Power dissipationPd400mWTa ≤ 85°C
Operating temperatureTopr−40 to +85°C
Storage temperatureTstg−55 to +125°C
Max15V
CC
5
Page 6
HA12231FP
Electrical Characteristics
Re-
mark
L
R
L
R
Unit
= 9 V, PBOUT Level = 450 mVrms (= 0 dB))
CC
Max
Typ
(Ta = 25°C, V
Min
PBOUT
level(dB)
∗1
15
6
16
516615
5
dB
dB
mA
9
24.5
6.0
23.5
13.0
22.5
12.050.0
No signal
THD = 1%
00
516615
%
0.3
0.05
15→
6→
19
2
dB
60.0
12
11
6
17171717
444
15
19
19
19/18
2
2
2/3
dB
dB
dB
43.0
39.0
35.0
40.0
36.0
32.0
37.0
33.0
29.0
120µs
120µs
70µs
000
Test ConditionApplication Terminal
1k
1k1k
1k
1k
10k
fin(Hz)Other
10k
∗1
17
4174
4
19/18
19/18
19/18
2/32/3
2/3
%
µVrms
mVrms
0.5
2.0
0.1
1.2
600
300
THD = 1%
Rg = 680Ω, Din-Audio Filter
0
(0)
1k
1k
(1k)
12
15
6
16
5
dB
−10.0
−14.0
−18.0
5k
12
15
6
16
5
V
1.5
1.0
0
5k
8, 9,
12
15
6
12
16
5
V
dB
µA
2.01.0
0.0
80.0
−0.2
70.0
No signal
12
1k
10
CC
V
3.5
IC ConditionInputSpecificationOutput
OUTPUT
INPUT
ItemSymbol
PBOUT
PBOUTPBOUT
PBOUT
TAI
TAITAI
FIN
IA
V
Q
Vomax
I
G
Quiescent current
Input AMP. gain
CT RL
T.H.D.THD
Channel separation
Signal handling
EQOUT
EQOUT
EQOUT
FIN
FIN
FIN/RIN
EQ 1k
EQ 10k(1)
EQ 10k(2)
V
V
V
G
G
G
PB-EQ gain
PBOUT
EQOUT
EQOUT
EQOUT
FIN/RIN
FIN/RIN
FIN/RIN
OM
THD-EQ
VN
PB-EQ maximum outputV
PB-EQ THD
Noise voltage level converted
PBOUT
MSOUT
TAI
TAITAI
ON
OL
V
in input
MS sensing level
MS output low levelV
MSOUT
PBOUT
MSOUT
IH
IL
IOHMute
V
V
= 7.2 V
CC
MS output leak current
MUTE attenuation
Control voltage
Note: 1. V
6
Page 7
Test Circuit
PBL
DC VM
SW13
MS
PBR
AC VM2
Distortion
HA12231FP
Noise
meter
scope
Oscillo
analyzer
SW12
NOISE METER
WITH CCIR/ARM FILTER
Lch
Rch
AND DIN/AUDIO FILTER
EQ
SW8
PB
R11
10k
+
C11
0.47µ
DC SOURCE1
C7
+
R8
R9
330k
C8
0.33µ
+
1µ
C9
10k
R10
SW6
C12
0.1µ
R12
R13
5.1k
5.1k
R14
680
22µ
C13
R15
680
++
22µ
C14
100µ
3.9k
C10
V
CC
MS
MS DET
131211
MS
RECT
RIP
MA
−
+
PBOUT(L)
+
2.2µ
TAI(L)
I.A.
LPF
EQOUT(L)
RIN(L)
−
+
FIN(L)
GNDVREF
20191817161514
FOR/REV
Mute
120/70
MS G
PBOUT(R)
TAI(R)
I.A.
EQOUT(R)
RIN(R)
−
+
FIN(R)
DC SOURCE2
DC SOURCE3
OFFON
0.01µ
680
680
+
+
EXT
C3
R4
C2
C1
SW11
R7
R6
0.1µ
5.1k
22µ
22µ
FORREV
24k
10k
EXT
+
C4
SW7
PB
EQ
R5
10k
0.47µ
10
SW10
EXT
SW9
12070
V
C6
+
6789
C5
2.2µ
SW5
R3
5.1k
R2
2345
R1
1
TAI
RINSW3
FIN
FIN
RIN
SW4
TAI
Rch
Lch
SW2
OFFON
SW1
AUDIO SG
2. Capacitor tolerance ±1%
AC VM1
Notes: 1. Resistor tolerance ±1%
3. Unit R: Ω, C: F
7
Page 8
HA12231FP
Functional Description
Power Supply Range
HA12231FP is designed to operate on single supply only.
Table 1Supply Voltage Range
ProductSingle Supply
HA12231FP7.2 V to 12.0 V
Reference Voltage
HA12231FP provides the reference voltage of half the supply voltage that is the signal grounds. As the
peculiarity of this device, the capacitor for the ripple filter is very small about 1/100 compared with their
usual value. The block diagram is shown as figure 1.
11 V
CC
+
−
MS block
20
14
+
RIP
C1
1µ
+
−
1
VREF
to Line Amp.
: Internal reference voltage
Figure 1 The Block Diagram of Reference Supply Voltage
8
Page 9
HA12231FP
Operating Mode Control
HA12231FP provides fully electronic switching circuits. And each operating mode control are controlled
by parallel data (DC voltage).
When a power supply of this IC is cut off, for a voltage, in addition to a mode control terminal even though
as do not destruct it, in series for resistance.
Table 2Threshold Voltage (VTH)
Pin No.LoHiUnitTest Condition
8, 9, 10−0.2 to 1.03.5 to V
CC
Table 3Switching Truth Table
Pin No.Pin NameLowHigh
8120/70120 µ (Normal)70 µ (Metal or Chrome)
9MuteMute OFFMute ON
10FOR/REVForwardReverse
Notes: 1. Each pins are on pulled down with 100 kΩ internal resistor.
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: V
3. Reducing pop noise is so much better for 10 kΩ to 22 kΩ resisitor and 1 µF to 22 µF capacitor
shown figure 2.
, Low: −0.2 V)
CC
V
Input PinMeasure
V
Input Pin
10 to 22 kΩ
+
1 to 22 µF
MPU
Figure 2 Interface for Reduction of Pop Noise
9
Page 10
HA12231FP
Input Block Diagram and Level Diagram
60mVrms
(−22.2dBs)
EQOUT
FIN
RIN
VREF
EQ Amp.
−+
PBIN
0.6mVrms
(−62.2dBs)
R1
5.1kΩ
R2
5.1kΩ
PBOUT Level
HA12231FP: 450 mVrms (−4.7 dBs)
C1
0.1µF
TAI
30mVrms
(−28.2dBs)
the other
channel
The each level shown above is typical value
when offering PBOUT level to PBOUT pin.
(EQ Amp. Gv = 40 dB, f = 1 kHz)
Input Amp.
+
−
23.5dB
0dB
MUTE
PBOUT
Figure 3 Input Block Diagram
Adjustment of Playback Reference Operate Level
After replace R1 and R2 with a half-fix volume of 10 kΩ, adjust playback reference operate level.
10
Page 11
HA12231FP
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.
S/R
V
CC
REX2REX1
CEX2
16713
TAI(L)
CEX1
+
R1
330kΩ
23.5dB
−6dB
LPF
25kHz
90kΩ
−
+
33.3kΩ
−3.5dB
MS Amp.
66.7kΩ
23.5dB
TAI(R)
5
MS DETMS Gv
RECT
+
C1
0.33µF
MS
GND
12
20
DV
CC
Micro
computer
R
L
Figure 4 Music Sensor Block Diagram
f
G
V2
G
V1
(dB)
V
G
10100k25k10k1k
3
100
Figure 5 Frequency Response
Repeat mode (REP)
f
1
Search mode (SER)
f (Hz)
f
4
f
2
11
Page 12
HA12231FP
1. Search mode
GV1 = (23.5dB − 3.5dB) + 20log 1 +[dB]
f1 =[Hz], f2 = 25k [Hz]
2π⋅ CEX2 ⋅ REX2
1
2. Repeat mode
GV2 = (23.5dB − 3.5dB) + 20log 1 +[dB]
f3 =[Hz], f4 = 25k [Hz]
2π⋅ CEX1 ⋅ REX1
1
The sensitivity of music sensor (S) is computed by the formula mentioned below.
S = 12.7 − GV[dB]
S is 6 dB down in case of one-side channel.
90k
REX2
90k
REX1
Notes: 1. Search mode: GV1, Repeat mode: G
V2
2. Standard level of TAI pin (Dolby level correspondence) = 30 mVrms
3. Standard sensing level of music sensor = 130 mVrms
S
(one side
ItemREX1, 2CEX1, 2G
Search mode24 kΩ0.01 µF33.5 dB663 Hz25 kHz−14.8 dB−20.8 dB
Repeat mode2.4 kΩ1 µF51.7 dB66.3 Hz25 kHz−33.0 dB−39.0 dB
Note: This MS presented hysteresis lest MS(OUT) terminal should turn over again High level or Low level,
in case of thresh S level constantly.
V1, 2
f
1, 3
f
2, 4
channel)
S
(both
channel)
Music Sensor Time Constant
1. Sensing no signal to signal (Attack) is determined by C1, 0.01 µF to 1 µF capacitor C1 can be
applicable.
2. Sensing signal to no signal (Recovery) is determined by C1 and R1, however preceding (1), 100 kΩ to 1
MΩ can be applicable.
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 signal. And output level will be
“low” when sensing signal.
DV
− MS(OUT)LO*
IL =
CC
* MS(OUT)
R
L
: Sensing signal (about 1V)
LO
Note: Supply voltage of MS(OUT) pin must be less than VCC voltage.
12
Page 13
Characteristic Curves
HA12231FP
0
EQOUT(L), VCC = 9 V,
Vin = 0 dBm, 120 µs
−10
toward Cellular phone noise
−20
−30
−40
EQOUT Noise Output (dBs)
−50
−60
100100001000
0
EQOUT(L), VCC = 9 V,
120 µs, f = 900 MHz
−10
toward Cellular phone noise
−20
EQOUT Noise Output vs. Transmission Frequency
FIN(L)
RIN(L)
Transmission Frequency (MHz)
EQOUT Noise Output vs. Transmission Signal Input Level
FIN, RIN → EQOUT, 70 µs, 0 dB = 60 mVrms,
f = 1 kHz, T.H.D. = 1%
40
35
30
Vomax (dB)
25
20
15
46101214168
0
−10
−20
FIN
RIN
FIN → PBOUT, Vout = 12 dB (0 dB = 450 mVrms),
80 kHz LPF
L→R
R→L
Signal Handling
Supply Voltage (V)
Crosstalk vs. Frequency (CTRL)
−30
−40
Crosstalk (dB)
−50
−60
−70
−80
101001k100k10k
Frequency (Hz)
21
Page 22
HA12231FP
0
RIN → PBOUT, Vout = 12 dB (0 dB = 450 mVrms),
80 kHz LPF
−10
−20
−30
−40
Crosstalk (dB)
−50
−60
−70
−80
101001k100k10k
10
0
L→R
R→L
TAI → PBOUT, V
0 dB = 450 mVrms
SER L→H
SER H→L
REP L→H
REP H→L
Crosstalk vs. Frequency (CTRL)
Frequency (Hz)
MS Amp. Sensitivity vs. Frequency
= 9 V,
CC
22
−10
−20
MS Sensing Level (dB)
−30
−40
101001k100k10k
Frequency (Hz)
Page 23
HA12231FP
1000
No-Signal Sensing Time vs. Resistance
TAI → PBOUT, VCC = 9 V,
f = 5 kHz, MSOUT L → H
SER 0 dB
100
10
No-Signal Sensing Time (ms)
1
Signal Sensing Time vs. Capacitance
1000
TAI → PBOUT, VCC = 9 V,
f = 5 kHz, MSOUT H → L
SER 0 dB
PBOUT
MSOUT
10M100k1M10k
Resistance R10 (Ω)
100
10
Signal Sensing Time (ms)
1
0.1
0.0010.011010.1
Capacitance C8 (µF)
PBOUT
MSOUT
23
Page 24
HA12231FP
Package Dimensions
20
Unit: mm
12.6
13 Max
11
5.5
1
0.80 Max
1.27
*0.42 ± 0.08
± 0.06
0.40
*Dimension including the plating thickness
Base material dimension
10
0.12
0.10 ± 0.10
0.15
M
2.20 Max
7.80
0.20 ± 0.04
*0.22 ± 0.05
0.70 ± 0.20
Hitachi Code
JEDEC
EIAJ
Mass
(reference value)
+ 0.20
– 0.30
1.15
0° – 8°
FP-20DA
—
Conforms
0.31 g
24
Page 25
HA12231FP
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
Hitachi Europe Ltd.
Electronic Components Group.
Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire SL6 8YA, United Kingdom
Tel: <44> (1628) 585000
Fax: <44> (1628) 585160
Hitachi Asia Ltd.
Hitachi Tower
16 Collyer Quay #20-00,
Singapore 049318
Tel : <65>-538-6533/538-8577
Fax : <65>-538-6933/538-3877
URL : http://www.hitachi.com.sg
Hitachi Asia Ltd.
(Taipei Branch Office)
4/F, No. 167, Tun Hwa North Road,
Hung-Kuo Building,
Taipei (105), Taiwan
Tel : <886>-(2)-2718-3666
Fax : <886>-(2)-2718-8180
Telex : 23222 HAS-TP
URL : http://www.hitachi.com.tw
Copyright  Hitachi, Ltd., 2001. All rights reserved. Printed in Japan.
Hitachi Asia (Hong Kong) Ltd.
Group III (Electronic Components)
7/F., North Tower,
World Finance Centre,
Harbour City, Canton Road
Tsim Sha Tsui, Kowloon,
Hong Kong
Tel : <852>-(2)-735-9218
Fax : <852>-(2)-730-0281
URL : http://www.hitachi.com.hk
Colophon 2.0
25
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