HIT HA12215F Datasheet

HA12215F

Audio Signal Processor for Cassette Deck (Dolby B-type NR with Recording System)

ADE-207-253D (Z)

Target Specification

5th Edition

Oct. 1999

Description

HA12215F is silicon monolithic bipolar IC providing Dolby noise reduction system*1, music sensor system, REC equalizer system and each electronic control switch 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.

Functions

•	Dolby B-NR	×	2 channel
•	REC equalizer	×	2 channel
•	Music sensor	×	1 channel
•	Pass amp.	×	2 channel

•Each electronic control switch to change REC equalizer, bias, etc.

Features

•REC equalizer is very small number of external parts and have 6 types of frequency characteristics built-in.

•2 types of input for PB, 1 type of input for REC.

• 70µ - PB equalizer changing system built-in.

•Dolby NR with dubbing double cassette decks.

Unprocessed signal output available from recording out terminals during PB mode.

•Provide stable music sensor system, available to design music sensing time and level.

•Controllable from direct micro-computer output.

•Bias oscillator control switch built-in.

•NR ON / OFF and REC / PB fully electronic control switching built-in.

•Normal-speed / high-speed, Normal / Crom / Metal and PB equalizer fully electronic control switching built-in.

•Available to reduce substrate-area because of high integration and small external parts.

HA12215F

Ordering Information

Operating Voltage

Product	VCC (V)	VEE (V)	Note
HA12215F	+6.0 to +7.5	–7.5 to –6.0	| VCC + VEE | < 1.0 V

Standard Level

Product	Package	PB-OUT Level	REC-OUT Level	Dolby Level
HA12215F	FP-56	580 mVrms	300 mVrms	300 mVrms

Function

			Music		REC / PB
Product	Dolby B-NR	REC-EQ	Sensor	Pass Amp.	Selection	ALC
HA12215F

Note: Depending on the employed REC / PB head and test tape characteristics, there is a rare case that the REC-EQ characteristics of this LSI can not be matched to the required characteristics because of built-in resistors which determined the REC-EQ parameters in this case, please inquire the responsible agent because the adjustment built-in resistor is necessary.

Rev.5, Oct. 1999, page 2 of 69

HA12215F

Pin Description, Equivalent Circuit (VCC = ±7 V, A system of split supply voltage, Ta = 25°C, No Signal, The value in the show typical value.)

Pin No.	Terminal Name	Note	Equivalent Circuit		Pin Description
51	AIN (R)	V = GND			PB A Deck input

			V
			100k
			GND
48	AIN (L)
53	BIN (R)	V = GND		PB B Deck input
46	BIN (L)
56	RIN (R)	V = GND		REC input
43	RIN (L)
5	EQIN (R)	V = GND		REC equalizer input
38	EQIN (L)
1	DET (R)	V = VEE+2.7V	VCC	Time constant pin for
				Dolby-NR
			V
			VEE

42	DET (L)
2	BIAS1	V = VEE+0.6V		Dolby bias current
				input

		V	VEE
41	BIAS2	V = VEE+1.3V	REC equalizer bias
			current input
		V	VEE

Rev.5, Oct. 1999, page 3 of 69

HA12215F

Pin Description, Equivalent Circuit (VCC = ±7 V, A system of split supply voltage, Ta = 25°C, No Signal, The value in the show typical value.) (cont)

Pin No.

Terminal Name

Note

Equivalent Circuit

Pin Description

3

PBOUT (R)

V = GND

V

VCC

PB output

VEE

40

PBOUT (L)

4

RECOUT (R)

V = GND

REC output

39

RECOUT (L)

7

EQOUT (R)

V = GND

REC equalizer output

36

EQOUT (L)

28

MAOUT

V = GND

MS Amp. output *1

8

ROUT (R)

V = GND

Input Amp. output

35

ROUT (L)

52

ABO (R)

R1 = 15 k

VCC

Time constant pin for

R2 = 12 k

PB equalizer (70 )

V

R1

R2

VEE

47

ABO (L)

6

BOOST (R)

R1 = 4.8 k

Time constant pin for

R2 = 4.8 k

low boost

37

BOOST (L)

31

BIAS (M)

V = VCC – 0.7V

VCC

REC bias current

output

V

32BIAS (C)

33BIAS (N)

Note: 1. MS: Music Sensor

Rev.5, Oct. 1999, page 4 of 69

HA12215F

Pin Description, Equivalent Circuit (VCC = ±7 V, A system of split supply voltage, Ta = 25°C, No Signal, The value in the show typical value.) (cont)

Pin No.	Terminal Name	Note	Equivalent Circuit							Pin Description
21	VCC	V = VCC								Power supply
49	GND	V = 0V								GND pin
50	VEE	V = VEE								Negative power
										supply
45, 54	NC	No connection								No connection
15	ALC ON/OFF	I = 50 A	V						I	Mode control input
			22 k

100 k GND

16PB A/B

17A 120/70

18NORM/HIGH

19B NORM/CROM/ METAL

20BIAS ON/OFF

22RM ON/OFF

23NR ON/OFF

25LM ON/OFF

24	REC/PB/PASS			2.5 V	Mode control input
					+
					−
				100 k	100 k
				22 k
				V
26	MSOUT	I = 0 A	V	VCC	MS output (to MPU) *1
				I	MSGND

VEE

Note: 1. MS: Music Sensor

Rev.5, Oct. 1999, page 5 of 69

HA12215F

Pin Description, Equivalent Circuit (VCC = ±7 V, A system of split supply voltage, Ta = 25°C, No Signal, The value in the show typical value.) (cont)

Pin No.

Terminal Name

Note

Equivalent Circuit

Pin Description

10

GPCAL

R = 110 kΩ

GP gain calibration

R

2.5 V

terminal

11

RECCAL

R = 110 kΩ

REC gain calibration

terminal

12

ALCCAL

R = 140 kΩ

ALC operation level

calibration terminal

14

MSDET

n = 6

0 µ A

VCC

Time constant pin for

MS *1

n

VEE

13

ALCDET

n = 2

27

MSIN

R = 50 kΩ

V

VCC

MS input *1

R

GND

9

ALCIN (R)

R = 100 kΩ

34

ALCIN (L)

30

MAI

V = GND

MAOUT

VCC

MS Amp. input *1

100 k

V

8.2 k

GND

29

MS GND

I = ±100 µ A

MS output voltage

I

level control pin *1

55

ALC (R)

V = GND

Variable impedance

V

for attenuation

44

ALC (L)

Note:

1. MS: Music Sensor

Rev.5, Oct. 1999, page 6 of 69

HA12215F

Block Diagram

DET (L)

BIAS2

PBOUT (L)

RECOUT (L)

EQIN (L)

BOOST (L)

EQOUT (L)

ROUT (L)

ALCIN (L)

BIAS (N)

BIAS (C)

BIAS (M)

MAI

MSGND

42

41

40

39

38

37

36

35

34

33

32

31

30

29

RIN (L)	43					EQ					BIAS			28	MAOUT
ALC (L)	44					Dolby								27	MSIN
														MS
						B-NR
	NC 45													26	MSOUT
BIN (L)	46													25	LM ON / OFF
ABO (L)	47													24	REC / PB / PASS
AIN (L)	48													23	NR ON / OFF
GND	49											−		22	RM ON / OFF
						+		LPF				+
VEE	50													21	VCC
AIN (R)	51													20	BIAS ON / OFF
ABO (R)	52													19	B NORM / CROM / METAL
BIN (R)	53										ALC			18	NORM / HIGH
	NC 54					Dolby								17	A 120 / 70
ALC (R)	55					B-NR								16	PB A / B
RIN (R)	56					EQ								15	ALC ON / OFF
	1	2	3	4	5	6	7	8	9	10	11	12	13	14

DET (R)

BIAS1

PBOUT (R)

RECOUT (R)

EQIN (R)

BOOST (R)

EQOUT (R)

ROUT (R)

ALCIN (R)

GPCAL

RECCAL

ALCCAL

ALCDET

MSDET

Rev.5, Oct. 1999, page 7 of 69

HA12215F

Parallel-Data Format

					MODE
Pin No.	Pin Name	Lo	Mid	Hi	“Pin Open”
15	ALC ON/OFF	ALC ON	—	ALC OFF	Lo
16	PB A/B	Ain *1	—	Bin * 1	Lo
17	A 120/70	*1	—	*1	Lo
22	RM ON/OFF	REC MUTE ON	—	REC MUTE OFF	Lo
20	BIAS ON/OFF	BIAS OFF	—	BIAS ON	Lo
23	NR ON/OFF	NR OFF	—	NR ON	Lo
24	REC/PB/PASS	REC MODE	PB MODE	REC MODE PASS	Mid
25	LM ON/OFF	LINE MUTE OFF	—	LINE MUTE ON	Lo
18	NORM/HIGH	Normal speed	—	High speed	Lo
19	B NORM/CROM/	REC EQ Normal *1	REC EQ CROM *1	REC EQ METAL *1	Lo
	METAL	Bias Normal	Bias CROM	Bias METAL
Note:	1. PB EQ logic

PB EQ Logic

		PB
A 120/70	B NORM / CROM / METAL	Lo	Hi
Lo	Lo	FLAT	FLAT
Lo	Hi or Mid	FLAT	70
Hi	Lo	70	FLAT
Hi	Hi or Mid	70	70

Rev.5, Oct. 1999, page 8 of 69

HA12215F

Functional Description

Power Supply Range

HA12215F is designed to operate on split supply.

Table 1	Supply Voltage
Product	VCC (V)	VEE (V)	Note
HA12215F	+6.0 to +7.5	–7.5 to –6.0	| VCC + VEE | < 1.0 V

Note: 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.

Reference Voltage

The reference voltage are provided for the left channel and the right channel separately. The block diagram is shown as figure 1.

21 VCC	+
	−
VCC	L channel reference
49 GND	+
	−
VEE	Music sensor reference
50 VEE	+
	−
	R channel reference

Figure 1 Reference Voltage

Rev.5, Oct. 1999, page 9 of 69

HA12215F

Operating Mode Control

HA12215F provide fully electronic switching circuits. And each operating mode control is controlled by parallel data (DC voltage).

Table 2

Control Voltage

Pin No.

Lo

Mid

Hi

Unit

Test Condition

15, 16, 17, 18,

–0.2 to 1.0

—

4.0 to V CC

V

Input Pin Measure

20, 22, 23, 25

19, 24

–0.2 to 1.0

2.0 to 3.0

4.0 to VCC

V

Notes: 1.

Each pins are on pulled down with 100 kΩ internal resistor.

Therefore, it will be low-level when each pins are open.

But pin 24 is mid-level when it is open.

2.Over shoot level and under shoot level of input signal must be the standardized (High: VCC, Low: –0.2 V).

3.For reduction of pop noise, connect 1 µ F to 22 µ F capacitor with mode control pins.

But it is impossible to reduce completely in regard to Line mute, therefore, use external mute at the same time.

Input Block Diagram and Level Diagram

	The each level shown above is typical value MS				REF
	when offering PBOUT level to PBOUT pin.
				300mVrms	PASS	PBOUT
					REC	580mVrms
					PB	PASS/REC,
			FLAT	PB/REC,		PB=5.7dB/5.7dB
AIN			(120 )	PASS=0dB/21.4dB 300mVrms
		300mVrms		PB
		21.3dB	0dB		Dolby	RECOUT
BIN	25.9mVrms	R3	70 s	REC	B-NR	300mVrms
		12k		PASS
					300mVrms
			R4
			15k		ALC
			25.5mVrms
		C2	C1
		4700pF	0.1 F
			R1	R2	C3
			15k	2.2k	0.1 F
			RIN
			200mVrms

Figure 2 Input Block Diagram

Rev.5, Oct. 1999, page 10 of 69

HA12215F

PB Equalizer

By switching logical input level of pin 17 (for Ain) and pin 19 (for Bin), you can equalize corresponding to tape position at play back mode.

With the capacity C2 capacitance that we showed for figure 2 70 s by the way figure seem to 3 they are decided.

GV
	t1	= C2	(12k + 15k)
	t2	= C2	15k
t1	f
	t2

Figure 3 Frequency Characteristic of PB Equalizer

The Sensitivity Adjustment of Music Sensor

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

REP
		VCC		D VCC
	C16	R13		+ C13
	1000p	330k		0.33µ
PB (L)
MAI	MA	MSIN	MS	RL
	OUT		DET
100k
8.2k
−		DET		MS OUT
+				Microcomputer
	MS AMP
− 6dB
				GND
LPF
25kHz		50k
				GND
PB (R)

Figure 4 Music Sensor Block Diagram

Rev.5, Oct. 1999, page 11 of 69

S = 20log

HA12215F

The Sensitivity of Music Sensor

A standard level of MS input pin 25.9 mVrms, therefore, the sensitivity of music sensor (S) can request it, by lower formulas.

A = MS Amp Gain*1

B = PB input Gain (1/2)*2 C = Sensed voltage

20log (A B) = D [dB] S = 14 − C = 130 [mVrms] (Intenally voltage in a PB input Gain = 21.3 [dB]

Notes: 1. When there is not a regulation outside.

2. Case of one-sided channel input.

C[dB]

25.9A B

D [dB] standard)

But necessary to consider the same attenuation quantity practically, on account of A(B) have made frequency response.

GV
37.7dB
			1
	f1	= 2π C16 50k		[Hz]
	f2	= 25k	[Hz]
f1	f
	f2

Figure 5 Frequency Characteristic of MSIN

Occasion of the external component of figure 4, f1 is 3.18 kHz.

Time constant of detection

Figure 6(1) generally shows that detection time is in proportion to value of capacitor C13. But, with Attack*2 and Recovery*3 the detection time differs exceptionally.

Notes 2. Attack

: Nonmusic to Music

3. Recovery : Music to Non-music

Detection time

Recovery

Attack

C13

(1)

Detection time

Recovery	time	Recovery
Attack	Detection		Attack
R13	Detection level		Input level
(2)			(3)

Figure 6 Function Characteristic of MS

Like the figure 6(2), Recovery time is variably possible by value of resistor R13. But Attack time gets about fixed value. Attack time has dependence by input level. When a large signal is inputted, Attack time is short tendency.

Rev.5, Oct. 1999, page 12 of 69

HA12215F

Music Sensor Output (MSOUT)

As for internal circuit of music sensor block, music sensor output pin is connected to the collector of NPN type directly, output level will be “high” when sensing no signal. And output level will be “low” when sensing signal.

Connection with microcomputer, it is requested to use external pull up resistor (RL = 10 kΩ to 22 kΩ ) Note: Supply voltage of MSOUT pin must be less than VCC voltage.

The Tolerances of External Components

For Dolby NR precision securing, please use external components shown at figure 7. If leak-current are a few electrolytic-capacitor, it can be applicable to C5 and C23.

VEE					C23
					0.1
			± 10%
	42
DET (L)
HA12215F

DET (R)	BIAS1
1	2
C5	R5
0.1	33k
± 10%	± 2%
	VEE

Figure 7 Tolerance of External Components

Low-Boost

24.6dB	4.8k	EQOUT
EQIN
		REC EQ
		4.8k

BOOST

+C9(C19) 0.47

Figure 8 Example of Low Boost Circuit

External components shown figure 8 gives frequency response to take 6 dB boost. And cut off frequency can request it, by C9 (C19).

Rev.5, Oct. 1999, page 13 of 69

HA12215F

REC Equalizer

The outlines of REC Equalizing frequency characteristics are shown by figure 9. Those peak level can be set up by supplying voltage. (0 V to 5 V, GND = 0 V) to pin 10 (GPCAL).

And whole band gain can be set up by supplying voltage (0 V to 5 V, GND = 0 V) to pin 11 (RECCAL).

Both setting up range are ±4.5 dB. In case that you do not need setting up, pin 10, pin 11 should be open bias.

Note: Depending on the employed REC/PB head and test tape characteristics, there is a rare case that the REC-EQ characteristics of this LSI can not be matched to the required characteristics because of built-in resistors which determined the REC-EQ parameters in this care, please inquire the responsible agent because of the adjustment of built-in resistor is necessary.

RECCAL

GPCAL

Gain (dB)

Frequency (Hz)

Figure 9 Frequency Characteristics of REC Equalizer

Bias Switch

HA12215F built-in DC voltage generator for bias oscillator and its bias switches.

External resistor R19, R20, R21 which corresponded with tape positions and bias out voltage are relater with below.

.	R22	× (VCC − VEE − 0.7) + VEE
Vbias =.	(R19 or R20 or R21) + R22		[V]

Bias switch follows to a logic of pin 19 (B / Norm / Crom / Metal).

Note: A current that flows at bias out pin, please use it less than 5 mA.

Rev.5, Oct. 1999, page 14 of 69

HA12215F

R21

BIAS (N)

Pin 33

BIAS (C)

Pin 32

R20 Vbias

R19

BIAS (M)

Pin 31

R22

VEE

Figure 10 External Components of Bias Block

Automatic Level Control

ALC is the input decay rate variable system. It has internal variable resistors of pin 55 (pin 44) by RECOUT signal that is inputted to pin 9 (pin 34).

The operation is similitude to MS, detected by pin 13.

The signal input pin is pin 56 (pin 43). Resistor R1, R2 and capacitor C2, external components, for the input circuit are commended as figure 12. There are requested to use value of the block diagram figure for performance maintenance of S/N, T.H.D. etc.

Figure 11 shows the relation with R1 front RIN point and ROUT.

ALC operation level acts for the center of +4.5 dB at tape position TYPE I, IV and the center of +2.5 dB at tape position TYPE II, to standard level (300 mVrms).

Then, adopted maximum value circuit, ALC is operated by a large channel of a signal.

ALC ON/OFF can switch it by pin 15. Please do ALC ON, after it does for one time ALC OFF inevitably, for ALC time to start usefully (when switching PB → PASS, when switching PB → PASS), in order to reset ALC circuit.

			TYPE I, IV
ROUT		TYPE II	4.5dB
	300mV	2.5dB
		RIN

Figure 11 ALC Operation Level

Rev.5, Oct. 1999, page 15 of 69

HA12215F

	R1	RIN			ROUT
	15k		25.5mV	21.4dB
Input		56			300mV	Output
					8
		C2			C4
		0.1	ALC
					9 ALCIN
		55		ALC		R12
		R2
		2.2k			13 ALCDET	VCC
						+
						C12

Figure 12 ALC Block Diagram

ALC Operation Level Necessary

ALC operation level is variable to pin 12 bias (ALC-CAL: 0 to 5 V), and its range is ±4.0 dB.

Unnecessary, pin 12 is unforced.

	ALC-CAL = 5V
ROUT	ALC-CAL = 0V
	RIN

Figure 13 ALC-CAL Characteristics

Rev.5, Oct. 1999, page 16 of 69

				HA12215F
Absolute Maximum Ratings
Item	Symbol	Rating	Unit	Note
Max supply voltage	VCC max	16	V
Power dissipation	Pd	625	mW	Ta ≤ 75°C
Operating temperature	Topr	–40 to +75	°C
Storage temperature	Tstg	–55 to +125	°C

Rev.5, Oct. 1999, page 17 of 69

69 of 18 page 1999, .Oct 5,.Rev

(Ta = 25° C, VCC = ± 7 V, Dolby Level = REC-OUT Level = 300 mVrms = 0 dB)

Test Condition

Application Terminal

IC Condition *1

Input

Output

NR

REC/PB

120 /

LINE

B

fin

RECOUT

Item

Symbol

ON/OFF

/PASS

A/B

70

MUTE

N/C/M

(Hz)

level (dB)

Other

Min

Typ

Max

Unit

R

L

R

L

COM

Remark

Quiescent current

IQ

OFF

PB

A

120

OFF

NORM

No signal

35.0

mA

Input AMP. gain

GV PB

OFF

PB

A/B

120

OFF

NORM

1k

0

25.5

27.0

28.5

dB

51/53

48/46

3

40

GV REC

OFF

REC

A

120

OFF

NORM

1k

0

25.0

26.5

28.0

56

43

3

40

B-type

ENC 2k (1)

ON

REC

A

120

OFF

NORM

2k

− 20

2.8

4.3

5.8

dB

56

43

4

39

Encode boost

ENC 2k (2)

ON

REC

A

120

OFF

NORM

2k

− 30

7.0

8.5

10.0

56

43

4

39

ENC 5k (1)

ON

REC

A

120

OFF

NORM

5k

− 20

1.7

3.2

4.7

56

43

4

39

ENC 5k (2)

ON

REC

A

120

OFF

NORM

5k

− 30

6.7

8.2

9.7

56

43

4

39

Signal handling

Vo max

ON

REC

A

120

OFF

NORM

1k

THD=1%

12.0

13.0

dB

56

43

4

39

2

Signal to noise ratio

S/N

ON

REC

A

120

OFF

NORM

1k

Rg=5.1kΩ ,

64.0

70.0

dB

56

43

4

39

CCIR/ARM

Total Harmonic Distortion

THD

ON

REC

A

120

OFF

NORM

1k

0

0.05

0.3

%

56

43

4

39

Channel separation

CTRL (1)

OFF

PB

A/B

120

OFF

NORM

1k

+12

70.0

80.0

dB

51/53

48/46

3

40

CTRL (2)

OFF

REC

A

120

OFF

NORM

1k

+12

70.0

85.0

56

43

3

40

Crosstalk

CT A/B

OFF

PB

A/B

120

OFF

NORM

1k

+12

70.0

80.0

dB

51/53

48/46

3

40

CT R/P

OFF

REC/PB

A

120

OFF

NORM

1k

+12

70.0

80.0

51/56

48/43

3

40

Pass AMP. gain

GV PA

OFF

PASS

A/B

120

OFF

NORM

1k

0

GV PA − GV PB

25.5

27.0

28.5

dB

51/53

48/46

3

40

Gain deviation

∆ GV

OFF

PASS

A/B

120

OFF

NORM

1k

0

− 1.0

0.0

1.0

dB

51/53

48/46

3

40

MUTE ATT.

MUTE

OFF

PB

A

120

ON

NORM

1k

+12

70.0

80.0

dB

51

48

3

40

70 EQ gain

GV EQ 1k

OFF

PB

A/B

70

OFF

NORM

1k

0

24.0

25.5

27.0

dB

51/53

48/46

3

40

GV EQ 10k

OFF

PB

A/B

70

OFF

NORM/

10k

0

20.8

22.3

23.8

51/53

48/46

3

40

CROM

MS sensing level

VON

OFF

PB

A

120

OFF

NORM

5k

− 26.0

− 22.0

− 18.0

dB

51

48

3

MS output low level

VOL

OFF

PB

A

120

OFF

NORM

1.0

1.5

V

51

48

MS output leak current

IOH

OFF

PB

A

120

OFF

NORM

2.0

A

ALC operate level

ALC (1)

OFF

REC

A

120

OFF

NORM,

1k

+12

2.0

4.5

7.0

dB

56

43

4

39

METAL

ALC (2)

OFF

REC

A

120

OFF

CROM

1k

+12

0.0

2.5

5.0

56

43

4

39

Notes: 1. Other IC-condition : REC-MUTE OFF, Normal tape, Normal speed, Bias OFF

2.VCC = ± 6.0 V

3.For inputting signal to one side channel

Characteristics Electrical	HA12215F

69 of 19 page 1999, .Oct 5,.Rev

														(Ta = 25° C, VCC = ± 7 V)
												Application Terminal
					Test Condition						Input				Output
Item	Symbol	TAPE	SPEED				Min	Typ	Max	Unit	R		L		R	L	COM	Remark
Equalizer S/N	S/N (EQ)	NORM	NORM	Rg = 5.1kΩ	, A-WTG Filter	SW22 (L), SW23 (R) OFF	55	58		dB	5		38		7	36
				(0dB = − 5dBs at EQOUT)
Equalizer maximum input	Vin max (EQ)	NORM	NORM	f = 1kHz, THD = 1%,		SW22 (L), SW23 (R) OFF	10.5	12.5		dB	5		38		7	36
				Vin = − 26dBs = 0dB
Equalizer total harmonic	T.H.D.1 (EQ)	NORM	NORM	f = 1kHz,	Vin = − 26dBs	SW22 (L), SW23 (R) OFF		0.2	0.5	%	5		38		7	36
distortion	T.H.D.2 (EQ)			f = 1kHz,	Vin = − 30dBs	SW22 (L), SW23 (R) OFF		0.2	0.5	%	5		38		7	36
Equalizer offset voltage	Vofs (EQ)	NORM	NORM	No-Signal		SW22 (L), SW23 (R) OFF	− 500	0	500	mV	5		38		7	36
Equalizer	GVEQ-NN1	NORM	NORM	f = 3kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	18.8	20.3	21.8	dB	5		38		7	36
frequency response	GVEQ-NN2			f = 8kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	23.9	25.9	27.9	dB	5		38		7	36
(NORM - NORM)
	GVEQ-NN3			f = 12kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	30.1	32.6	35.1	dB	5		38		7	36
Equalizer	GVEQ-CN1	CROM	NORM	f = 3kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	23.3	24.8	26.3	dB	5		38		7	36
frequency response	GVEQ-CN2			f = 8kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	28.5	30.5	32.5	dB	5		38		7	36
(CROM - NORM)
	GVEQ-CN3			f = 12kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	34.0	36.5	39.0	dB	5		38		7	36
Equalizer	GVEQ-MN1	METAL	NORM	f = 3kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	24.1	25.6	27.1	dB	5		38		7	36
frequency response	GVEQ-MN2			f = 8kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	25.9	27.9	29.9	dB	5		38		7	36
(METAL - NORM)
	GVEQ-MN3			f = 12kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	28.3	30.8	33.3	dB	5		38		7	36
Equalizer	GVEQ-NH1	NORM	HIGH	f = 5kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	15.0	16.5	18.0	dB	5		38		7	36
frequency response
	GVEQ-NH2			f = 15kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	19.9	21.9	23.9	dB	5		38		7	36
(NORM - High)
	GVEQ-NH3			f = 20kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	23.4	25.9	28.4	dB	5		38		7	36
Equalizer	GVEQ-CH1	CROM	HIGH	f = 5kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	19.9	21.4	22.9	dB	5		38		7	36
frequency Response
	GVEQ-CH2			f = 15kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	23.7	25.7	27.7	dB	5		38		7	36
(CROM - High)
	GVEQ-CH3			f = 20kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	26.9	29.4	31.9	dB	5		38		7	36
Equalizer	GVEQ-MH1	METAL	HIGH	f = 5kHz,	Vin = − 46dBs	SW22 (L), SW23 (R) OFF	21.4	22.9	24.4	dB	5		38		7	36
frequency response
	GVEQ-MH2			f = 15kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	22.0	24.0	26.0	dB	5		38		7	36
(METAL - High)
	GVEQ-MH3			f = 20kHz, Vin = − 46dBs		SW22 (L), SW23 (R) OFF	23.5	26.0	28.5	dB	5		38		7	36
REC-MUTE attenuation	REC-MUTE	NORM	NORM	f = 1kHz,	Vin = − 14dBs	SW22 (L), SW23 (R) OFF	60	70		dB	5		38		7	36

(cont) Characteristics Electrical

HA12215F

69 of 20 page 1999, .Oct 5,.Rev

(Ta = 25° C, VCC = ± 7 V)

Application Terminal

Test Condition

Input

Output

Unit

Item

Symbol

TAPE

SPEED

Min

Typ

Max

R

L

R

L

COM

Remark

REC CAL response

R-CAL1

NORM

NORM

f = 3kHz,

Vin = − 46dBs, VREC-CAL = 5V

GV EQ-NN1 = 0dB

3.0

4.5

6.0

dB

5

38

7

36

R-CAL2

f = 3kHz,

Vin = − 46dBs, VREC-CAL = 0V

− 6.0

− 4.5

− 3.0

dB

5

38

7

36

GP CAL response

GP-CAL1

NORM

NORM

f = 12kHz, Vin = − 46dBs, VGP-CAL = 0V

GV EQ-NN3 = 0dB

3.0

4.5

6.0

dB

5

38

7

36

GP-CAL2

f = 12kHz,

Vin = − 46dBs, VGP-CAL = 5V

− 6.0

− 4.5

− 3.0

dB

5

38

7

36

ALC CAL response

ALC-CAL1

NORM

NORM

f = 1kHz,

VALC-CAL = 0V

ALC (1) = 0dB

− 4.0

− 3.0

dB

56

43

4

39

ALC-CAL2

f = 1kHz,

VALC-CAL = 5V

3.0

4.0

dB

56

43

4

39

Bias out maximum level

Bias on

RL = 2.4kΩ

+ 270Ω

VCC

VCC

V

31 to 33

− 1.4

− 0.7

Bias out offset

Bias off

RL = 2.4kΩ

+ 270Ω

VEE

VEE

VEE

V

31 to 33

− 0.1

+0.1

Control voltage

VIL

− 0.2

1.0

V

15 to 20

22 to 25

VIM

2.0

3.0

V

19, 24

VIH

4.0

5.3

V

15 to 20

22 to 25

Characteristics Electrical	HA12215F
(cont)

69 of 21 page 1999, .Oct 5,.Rev

DC − 7V
SOURCE2				C29
				100
			+

Audio	ON SW2 Lch
	SW1
SG	Rch
	OFF

AC VM1

C23

0.1

		R30	RIN (L)
		13k
				43
			C24
SW3	EQ		0.1	44
	R	R31
	B	2.2k		45
	A
		BIN (L)		46
	R32	C25 +
		0.47
	10k			47
			C26
	AIN (L)	0.0047		48
	R33	+
		C27
	10k	0.47		49
			VEE	50
		AIN (R)		51
	R1		C1 +
		0.47
	10k			52
			C2
	BIN (R)	0.0047		53
	R2	+
		C3
	10k	0.47		54
SW4	A
	B	R3
	R	2.2k	ALC (R)	55
	EQ
	RIN (R)			56
		R4	C4
		13k	0.1

C5

0.1

Notes: 1. Resistor tolerance are ± 1%.

2.Capacitor tolerance are ± 1%.

3.Unit R: Ω , C: F.

	SW5			SW7
	PB	EQ		PB	EQ
	REC
				REC
		R26
		7.5k	R24
			5.1k				R22	SW21
									N	M
		R27			ROUT	ALCIN	2.4k
									C
		20k	C19
	R28
R29		R25	0.47	C18	(L)	(L)
	10k	16k
22k	C22	C21	JP3	+2.2
	2.2	+ 2.2 +C20	SW	OFF +	C17			R21	R20	R19
		0.47 + 22		ON	0.47			2k	910	270

42 41 40 39 38 37 36 35 34 33 32 31

EQ

BIAS

Dolby

B-NR

−

+

LPF

+

ALC

Dolby

B-NR

EQ

1

2

3

2.2

4

5

6

7

8

9

10

11

12

2.2

0.47

JP1

OFF

C11

ALCDET

+ C7

+ SW

ON

+

ALCIN

GPCAL

RECCAL

ALCCAL

R7

0.47

ROUT

C6

+C8

23

0.47

R5

+ C10

R12

33k

R6

R9

C9

2.2

10k

16k

1M

20k

(R)

(R)

R10

R8

5.1k

R11

7.5k

10k

REC

REC

PB

EQ

PB

EQ

SW6

SW8

30 29

28	C16		MAOUT
27	1000p
	MSIN			DC VM2
MS
26	MSOUT				R18
		ON			3.9k
25	SW18	OFF	LM ON / OFF
		PASS
24		PB
	SW17	REC	REC / PB / PASS
			R17	ON
23			22k	OFF	NR ON / OFF
	+		SW16
22	C15		R16	OFF
	22		22k	ON	RM ON / OFF
	+		SW15
	C14

21V 22

CC

20		ON
	SW14	OFF	BIAS ON / OFF
		M
19		C
	SW13	N B NORM / CROM / METAL
		H
18
	SW12	N	NORM / HIGH
		70
17
	SW11	120 A 120 / 70
		A
16
	SW10	B PB A / B
		OFF
15
	SW9	ON	ALC ON / OFF

13	14		MSDET
10		330k
C12		R13
			C13
	+	+	0.33

Lch

BIAS SW20 DC VM1

Rch

DC +5V

SOURCE4

DC +2.5V

SOURCE3

R15

10k

JP2

R14

10k

DC +7V C28 + SOURCE1

100

Lch SW20

AC VM2

Rch

Distortion

analyzer

Oscillo

scope

Noise meter

noise meter

with ccir/arm filter and a-wtg filter

Circuit Test

HA12215F