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 electronic control 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 Corporation 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*1		Pd	400*2	mW

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

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

HA12163 Series

Block Diagram (HA12163/164/165/160)

				RADIO		PBOUT(L)
				IN(L)		PBOUT(L)					RECOUT(L)
EQOUT(L)			+
			+
	42	41	40	39	38	37	36	35	34	33	32	31	30	29
43			RIP									MS VREF		28
43	120/70
	120/70
44														27
44													MS GND
	–	+											MS GND
45	–	+					DOLBY B-NR							26
45				T/R			DOLBY B-NR
				T/R										25
46														25
46	R/F
	R/F
47	VREF(L)													24	+
47	VREF(L)														+
														23			VCC
48													DET MS VCC
49	GND									–				22
49	GND				+					–				VCC		To Microcomputer
					+			LPF		+				21	MS OUT	To Microcomputer
50	GND				–			LPF		+					MS OUT
					–					MS AMP


51														D GND 20
51
52	VREF(R)													19	MS GV (S/R)
52	VREF(R)			T/R
	R/F			T/R			DOLBY B-NR								F/R
53	R/F						DOLBY B-NR							18	F/R
53
54	–	+												17	120 µ/70 µ		From
54
															TAPE/RADIO
55														16	TAPE/RADIO		Microcomputer
55	120/70
	120/70													15	REC/PB
56														15	REC/PB
56			BIAS
			BIAS
	1	2	3	4	5	6	7	8	9	10	11	12	13	14
														NR ON/OFF
EQOUT(R)
				RADIO		PBOUT(R)						RECOUT(R)
				IN(R)

Rev.4, Jun. 1999, page 3 of 66

HA12163 Series

Block Diagram (HA12166F)

				RADIO
				IN(L)	PBOUT(L)				RECOUT(L)
	EQOUT(L)		+
			+
	36	35	34	33	32	31	30	29	28	27	26	25
37			RIP							MS VREF
37	120/70											MS GND 24
	120/70											MS GND 24
38	–	+
38										S/R		23
						DOLBY B-NR				S/R		23
39						DOLBY B-NR
39	F/R			T/R								22
	F/R			T/R								22
40 VREF(L)			× 1									21
			× 1									21	+
													+
41											DET MS VCC 20				VCC
									MS AMP.		DET MS VCC 20
42									MS AMP.
42	GND			+					–			VCC 19
				+			LPF		+					To Microcomputer
43	GND			–					+				MS OUT
												18
												18
44												D GND 17
45	VREF(R)		× 1									16	MS GV (S/R)
46	F/R			T/R								15 F/R
46				T/R								15 F/R
						DOLBY B-NR						14	120 µ/70 µ
47	–	+										14	120 µ/70 µ		From
47	–	+													From
	120/70											13 TAPE/RADIO			Microcomputer
48			BIAS									13 TAPE/RADIO			Microcomputer
			BIAS
	1	2	3	4	5	6	7	8	9	10	11	12	REC/PB
													REC/PB
EQOUT(R)												ON/OFF
												ON/OFF
				RADIO PBOUT(R)					RECOUT(R)
				IN(R)

Rev.4, Jun. 1999, page 4 of 66

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 VCC = 12 V				HA12160 VCC = 9.0 V
Item		Symbol		Min	Typ	Max		Unit		Test conditions		Note

Quiescent current		IQ		6.0	11.0	17.0		mA		No input		No Signal
												NR-ON,70 µ

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

		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

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

		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

Signal handling		Vo max		12.0	13.0	—	dB		THD = 1%, f = 1 kHz		*1

Signal to noise		S/N		64.0	70.0	—	dB		Rg = 5.1 k Ω , CCIR/ARM
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

		CT RAI →	EQ	50.0	60.0	—			Vin = 0 dB, f = 1 kHz		RAI input

PB - EQ gain		Gv EQ 1k		37.0	40.0	43.0		dB		Vin = 0.6 mVrms, f = 1 kHz	120 µ

		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

PB - EQ maximum VoM				300	600	—	mVrms THD = 1%, f = 1 kHz				*1
output

PB - EQ THD		THD - EQ		—	0.05	0.3	%		Vin = 0.6 mVrms, f = 1 kHz

Noise voltage level VN				—	0.7	1.5	µVrms		Rg = 680 Ω , DIN - AUDIO
converted in input

MS sensing level		VON (1)		–36.0	–32.0	–28.0		dB		f = 5 kHz, Normal speed

		VON (2)		–18.0	–14.0	–10.0				f = 5 kHz, High speed

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 VCC = 12 V			HA12160 VCC = 9.0 V
Item	Symbol	Min	Typ	Max		Unit Test conditions	Note

MS output low	VOL	—	1.0	1.5	V
level

MS output leak	IOH	—	0.0	2.0	µA
current

Control voltage	VIL	–0.2	—	1.5	V
	VIH	3.5	—	5.3

Note: 1. HA12163 HA12166F VCC = 6.5 V, HA12164 VCC = 7.2 V, HA12165 VCC = 8.5 V,HA12160 VCC = 8.2 V

Rev.4, Jun. 1999, page 6 of 66

66 of 7 page 1999, .Jun 4,.Rev

R30

R29

10 k

EQOUT(L)

PBOUT(L)

SW22

RECOUT(L)

SW21

DC VM1

EQOUT(L)

SW23

SW24

OFF

RAI(L)

PBOUT(L)

SW25

EQIR(L)

R33

RECOUT(L)

5.1 k

R28

R27

EQIF(L)

18 k

330 k

DC SOURCE1

R39

R34

R26

R38

R35

180

330 k

5.1 k

33 k

C29

C27

R41

R40

C25

R36

C28

R25

C14

R24

100 µ

22 µ

680

C24

C22

C23

C19

C15

4700 p

47 k

0.01 µ

330 k

0.01 µ

12 k

C26 +

0.1 µ

1 µ

+ 0.47 µ +

2.2 µ

A GND

C13

22 µ

R37

C17

0.33 µ

18 k

0.1 µ

GND

FIN

VREF

RIN

NFI

N.C.

TAI

RIP

RAI

N.C.

REC

FFI

NOI

MSI

V CC

(L)

OUT-M

OUT

(L)

OUT

DET

OUT

VREF

GND

OUT

DET VCC

(L)

HA12163/4/5/0 (PB 1 CHIP)

Note) The capacitor(C29) should

be connected.

REC

It's recommended to be

FIN

VREF

RIN

NFI

OUT-M

OUT

TAI

RAI

OUT

DET

OUT

ON/

REC TAPE/

120µ

connected close to the IC.

GND

(R)

N.C.

(R)

BIAS

(R)

N.C.

(R)

N.C.

(R)

N.C.

(R)

N.C.

OFF

/PB

RADIO

/70µ

F/R

GND

OUT

C32

C33

22 µ

R17

R18

R19

R20

R21

R22

C10

22 k

22 µ

0.01 µ

18 k

0.1 µ

2.2 µ

SW6

SW5

SW4

SW3

SW2

SW1

R23

5.1 k

R11

C12

REC

120 µ

70 µ

SER

REP

3.9 k

22 µ

680

12 k

18 k

2.2 µ

0.47 µ

OFF ON

TAP

RAD

FOR

REV

5.1 k

EQIF(R)

180

330 k

SW16

L	R	EQIR(R)
		EQIR(R)	SW13	SW12	SW11	SW10	SW9	SW8
		RAI(R)	SW13	SW12	SW11	SW10	SW9	SW8
SW15		RAI(R)
SW15
ON		OFF	R10							DC SOURCE2	5 V
ON		OFF	5.1 k
SW17									MSOUT	DC SOURCE3	5 V
									MSOUT	DC SOURCE3	5 V
								RECOUT(R)
								PBOUT(R)	SW18
									SW18
AC VM1		AUDIO SG						EQOUT(R)		D GND
								RECOUT(R)
								PBOUT(R)	R	L
								PBOUT(R)

EQOUT(R)

SW19

SW20

R14	R15
10 k	10 k

NOISE METER

OSCILLO SCOPE

DISTORTION

AC VM2

ANALYZER

NOISE METER

with CCIR/ARM filter

Note

and DIN-AUDIO filter

Resistor tolerance are ±1%

Capacitor tolerance are±1%

Unit R: Ω

C: F

HA12163/164/165/160

Circuit Test

Series HA12163

HIT HA12166F, HA12165, HA12164, HA12163, HA12160 Datasheet

66 of 8 page 1999, .Jun 4,.Rev

R30

R29

PBOUT(L)

SW22

HA12166F

HA12163

10 k

EQOUT(L)

Series

SW25

EQIR(L)

R33

RECOUT(L)

SW21

DC VM1

EQOUT(L)

SW23

SW24

OFF

RAI(L)

PBOUT(L)

5.1 k

R28

R27

EQIF(L)

18 k

330 k

DC SOURCE1

R39

R34

R26

R38

R35

C15

180

330 k

5.1 k

33 k

C29

C19

2.2 µ

C27

R41

R40

C25

R36

C28

R25

C14

R24

100 µ

22 µ

680

C22

C23

2.2 µ

4700 p

47 k

0.01 µ

330 k

0.01 µ

12 k

C26 +

1 µ

+ 0.47 µ +

A GND

C13

22 µ

R37

C17

0.33 µ

18 k

0.1 µ

GND

FIN

VREF

RIN

NFI

TAI

RIP

RAI

N.C.

REC

FFI

NOI

MSI

V CC

(L)

OUT-M OUT

(L)

OUT

DET

OUT

VREF

GND

OUT

DET VCC

(L)

HA12166 (PB 1 CHIP)

Note) The capacitor(C29) should

be connected.

REC

It's recommended to be

FIN

VREF

RIN

NFI OUT-M OUT

TAI

RAI

OUT

DET

OUT

ON/

REC TAPE/ 120µ

connected close to the IC.

GND

(R)

BIAS

(R)

N.C.

(R)

N.C.

OFF

/PB

RADIO

/70µ

F/R

GND

OUT

C32

C33

22 µ

R17

R18

R19

R20

R21

R22

C10

22 k

0.01 µ

18 k

22 µ

0.1 µ

SW2

SW1

+ C8

SW6

SW5

SW4

SW3

0.1 µ

R11

R23

5.1 k

2.2 µ

REC

120 µ

70 µ

SER

REP

3.9 k

22 µ

680

12 k

18 k

0.47 µ

OFF ON

TAP

RAD

FOR

REV

5.1 k

EQIF(R)

180

330 k

C12

L R

SW16

2.2 µ

		EQIR(R)
		SW13	SW12	SW11	SW10	SW9	SW8
SW15		RAI(R)
SW15
ON	OFF	R10							DC SOURCE2	5 V
ON	OFF	5.1 k
SW17								MSOUT	DC SOURCE3	5 V
								MSOUT	DC SOURCE3	5 V
							RECOUT(R)
							PBOUT(R)	SW18
								SW18
AC VM1		AUDIO SG					EQOUT(R)		D GND

			RECOUT(R)
			PBOUT(R)	R	L
			PBOUT(R)
			EQOUT(R)	SW19	SW20
R14	R15
10 k	10 k
Note	NOISE METER	OSCILLO SCOPE	DISTORTION	AC VM2
Note	NOISE METER	OSCILLO SCOPE	ANALYZER	AC VM2
			ANALYZER

1)Resistor tolerance are ±1%

2)Capacitor tolerance are±1%

3) Unit R: Ω	NOISE METER
3) Unit R: Ω	C: F
	with CCIR/ARM filter
	and DIN-AUDIO filter

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

RAI

Radio input

MSI

Music sensor

rectifier input

NR DET

—

2.5 V

Time

constant pin

for rectifier

29	33
3	3	BIAS	—	0.28 V	Reference
					current input
					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

QFP-48 QFP-56 name

Zin

voltage Equivalent circuit

Description

MS DET

—

V CC

Time

constant pin

for rectifier

GND

MS GV

100 kΩ —

Mode control

input

DGND

GND

34	40	RIP	—	V CC/2	Ripple filter
34	40	RIP	—	V CC/2	Ripple filter

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	—	V CC/2		Equalizer

36	56				V CC	output

			GND

5	6	PB OUT		Play back

32	37			(Decode)
				output

27	30	MS VREF		Reference
				voltage buffer
				output

23	26	MA OUT		Music sensor
				amp output

40	47	VREF		Reference
45	52			voltage buffer
				output

9	12	REC OUT		Recording

28	31			(Encode)
				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	—	V CC/2		Equalizer
					VCC
48	55				VCC	output
						(Metal)

GND

MS OUT

—

VCC

Music sensor

output to

MPU

						D GND

19	22	VCC	—	V CC	—	Power supply
20	23	MS VCC

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	FIN	—	V CC/2	PB - EQ
44	51				input for
					Forward

39	46	RIN	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	—	Mode control
					input
					input

							D GND
							D GND
						GND

12	15	REC/PB

13	16	TAPE/
		RADIO

14	17	120 µ/70 µ

15	18	F/R

6	1	NC	—	—	—		No

7	5						connection

10	7

30	8

31	9

	11

	13

	32

	34

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 higher than VCC’ or ‘D-GND is lower than GND’, excessive current flows into the D-GND to destory this IC. To prevent such destruction, pay

attention to the followings on using.

Short-circuit the D-GND and GND directory on the board mounting this IC.

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.

22	VCC		47	VREF(L)
	VCC		+
			+
			–	L channel
				L channel
			+	reference
			+	30 MS VREF
			–	30 MS VREF
			–	Music sensor
				Music sensor
				reference
			+	R channel
				R channel
			–	reference
			–
GND 49	50	40 RIP	52	VREF(R)
		+	52	VREF(R)
		+
		C22
		1

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 (VTH)
Pin No.	Low	High	Unit	Test conditions

14, 15, 16, 17, –0.2 to 1.5		3.5 to 5.3	V	Input Pin		Measure
18, 19
18, 19					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	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: 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 VCC ON/OFF.

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.

Rev.4, Jun. 1999, page 16 of 66

HA12163 Series

4. Input Block Diagram and Level Diagram

					HA12163: 300 mVrms (–8.2 dBs)
					HA12164: 450 mVrms (–4.7 dBs)
					HA12165: 580 mVrms (–2.5 dBs)
R34			C24		HA12160: 550 mVrms (–2.9 dBs)
R34			C24
5.1 k	R35		0.1
	R35
	5.1 k	EQ OUT	TAI	RAI	PBOUT
		EQ OUT	TAI	RAI	PBOUT
	R36		30 mVrms	42.4 mVrms
	R36		(–28.2 dBs)	(–25.2 dBs)
R38	12 k	EQ OUT-M	(–28.2 dBs)	(–25.2 dBs)
	12 k	EQ OUT-M

330 k	R37
	R37	EQ AMP.		INPUT AMP.
	18 k	EQ AMP.		INPUT AMP.
R39	18 k
R39	C25	–	+	+	RECOUT
180	0.01	NFI		+	RECOUT
180	0.01	NFI		–	NR circuit
				–	300 mVrms
		RIN			(–8.2 dBs)
		RIN
			0.6 mVrms
		VREF	(–62.2 dBs)
		FIN
				The each level shown above is typical value
				when offering PBOUT level to PBOUT pin.
				(EQ AMP Gv = 40 dB f = 1 kHz)

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.

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.

– +

46 R/F

47 VREF(L)

49 GND

50 GND

52 VREF(R)

53	R/F
53
54	– +
55
56

Figure 3 Application Circuit

Rev.4, Jun. 1999, page 18 of 66

HA12163 Series

7.The Sensitivity Adjustment of a Music Sensor

Adjusting MS AMP gain by external resistor, the sensitivity of music sensor can set up.

				C14		VCC	DVCC
		R28	R27	0.01
					R24		+C13
		R26	R25		330 k		0.33
	C28						IL
	4700 p
TAI (L)	MS	FFI	NOI	MA	MSI	MS
X1	VREF			OUT		DET
							R L
	L·R signal addition circuit
–6 dB	+		+			DET	MS OUT
–6 dB
		LPF	–				Microcomputer
	–	LPF	–				Microcomputer
	–						D GND
	26 dB	25 kHz	MS AMP.
X1					100 k		D GND
							D GND
TAI (R)

Figure 4 Music Sensor Block Diagram

Gv1	f 1			f 2
Gv1
Gv		Normal speed
Gv
[dB]
Gv2		f 3		f 4
Gv2
		FF or REV
10	100	1 k	10 k	25 k	100 k
	f	[Hz]

Figure 5 Frequency Response

Rev.4, Jun. 1999, page 19 of 66

HA12163 Series

A. Normal mode

Gv1 =

20 log 1 +

R27

[dB]

R28

f1 =

[Hz], f 2 =

25 k [Hz]

C14 100 k

B. FF or REW mode

Gv2 =

R25

20 log 1

[dB]

R26

f3 =

[Hz], f4 =

25k [Hz]

C28 R26

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.

S =		C	1
	20 log				[dB]
			10
		30		A

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.

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 signal. And output level will be “low” when sensing signal.

Connection with microcomputer, design IL at 1 mA typ.

IL = DVCC – MSOUTLo *

R L

* MSOUTLo: sensing signal (about 1 V)

Notes: 1. Supply voltage of MS OUT pin must be less than VCC voltage. 2. MS VCC pin and VCC pin are required the same voltage.

Rev.4, Jun. 1999, page 20 of 66

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