Datasheet HA12207NT Datasheet (HIT)

HA12207NT

Audio Signal Processor for Cassette Deck

ADE-207-197B (Z)

3rd Edition

Jun. 1999

Description

HA12207NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each electronic control switch in one chip.

Functions

• PB equalizer × 2 channel

• REC equalizer × 2 channel

• Each electronic control switch to change REC/PB etc.

• REC MUTE

• REC head return switch

Features

• REC equalizer is very small number of extern al parts, built-in 2 types of frequency characteristics.

• PB equalizer circuit built-in.

• REC /PB of high speed mode are possible with TYPE 1(Normal tape).

• Controllable from direct micro-computer output.

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

• As the pins arrangement resembles HA12185NT, it can design the board that is replaced with

HA12185NT.

HA12207NT

Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.6V, Ta = 25°C, No signal,

The value in the table show typical value.)

Pin No. Pin Name Note Equivalent Circuit Pin Description

1V

CC

V = V

CC

2 RECOUT (L) V = Vref

3RECOUT (R) 4 REC-RETURN V = Vref

V ’= Vref

V

CC

GND

I

VCC pin REC-EQ output

V

REC return

CC

V4

5 pin, 6 pin

I

GND

V’

5 PB-IN B (L) PB B Deck input 6 PB-IN B (R) 7VREF V = Vref

V’ = V

/ 2

CC

8 PB-IN A (L) V = Vref

PB-IN

V

–+

10k

V'

10k

V

CC

V

Reference

V

CC

GND

PB A deck input

9 PB-IN A (R)

Rev.3, Jun. 1999, page 2 of 27

HA12207NT

Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.6V, Ta = 25°C, No signal,

The value in the table show typical value.)

Pin No. Pin Name Note Equivalent Circuit Pin Description

10 PB-NF (L) PB-IN = Vref

V

CC

PB-IN

PB EQ feed back

11 PB-NF (R) 12 PB-EQ (L) PBOUT = Vref

13 PB-EQ (R) 20 REC IN (R) V = Vref

21 REC IN (L) 14 PBOUT (R) V = Vref

180

330k

7

NAB output

PBOUT

GND

V

CC

100k

7Vref

V

CC

REC-EQ input

V

PB output

15 PBOUT (L)

GND

Rev.3, Jun. 1999, page 3 of 27

HA12207NT

Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.6V, Ta = 25°C, No signal,

The value in the table show typical value.)

Pin No. Pin Name Note Equivalent Circuit Pin Description

16 A/B I = 20µA

17 HSP 18 MUTE 19 IREF V = 1.9V

V

I

22k

100k

GND

V

Mode control input

CC

Equalizer reference current input

22 GND GND pin

Rev.3, Jun. 1999, page 4 of 27

Block Diagram

CC

GND

V

HA12207NT

C : F

Unit R : Ω

0.01µ 0.01µ

)

R

)(

L

(

(R)

(L)

/B

(R)

PB-EQPB-EQ

13 12

14

PB-OUT

HSP

IREF

REC-IN

60µ

R-ch

12dB

120µ

L-ch

–

+

R-ch

AB

REC-EQ

11

)

R

PB-NFPB-NFPB-INPB-INPB-INPB-IN

10

)(

L

9

)(

R

(

A

)

L

(

A

VREF

470µ

+

)

R

(

B

)

L

(

B

REC-RETURN

(R)

REC-OUT

Bias

REC-IN

(L)

22 21 20 19 18 17 16 15

GND

L-ch

(L)

REC-OUT

CC

12345678

V

5.6k 5.6k

Rev.3, Jun. 1999, page 5 of 27

HA12207NT

Parallel Data Format

Pin No. Pin Name L H

17 HSP Normal * Hi speed 16 A/B Ain active * Bin active

Return SW ON * Return SW OFF

REC OUT active * REC OUT HIZ 18 MUTE MUTE ON * MUTE OFF Note: Unforced pin state

Rev.3, Jun. 1999, page 6 of 27

HA12207NT

Functional Description

Power Supply Range

HA12207NT is designed to operate on single supply, shown by table 1.

Table 1 Supply Voltage

Item Power Supply Range

Single Supply 9.5V to 15.0V

Reference Voltage

As AC reference (Vref) of this IC has not a curr ent drivability, Vref fluctuates by A/B switching of PB-EQ. Provided it causes you anxiety, please supply 7 pin with approximate 1/2 V For example, a suitable circuit is shown by figure 1. This IC has a capacitor charger for the Vref, indicated to the pin interface circuit figure.

voltage.

CC

470Ω

V

CC

1

22

GND

7

Vref

+

470µF

Figure 1 Reference Voltage Circuit

Lch PB-EQ Reference voltage

Lch REC-EQ Reference voltage

Rch REC-EQ Reference voltage

Rch PB-EQ Reference voltage

Rev.3, Jun. 1999, page 7 of 27

HA12207NT

Operating Mode Control

HA12207NT provides fully electronic switching circuits. And each operating mode control is controlled by parallel data (DC voltage).

Table 2 shows the control voltage of each control input pin.

Table 2 Control Voltage (Vth)

Pin No. Lo Hi Unit Test Condition

16, 17 0.0 to 1.0 4.0 to V

CC

V

Input Pin Measure

V

18 0.0 to 3.0 4.0 to V

CC

V

Note: 1. Each pin is pulled down with 100kΩ internal resistor. 16 to 18 pins are low-level when each pin is

open.

2. Over shoot level and under shoot level of input signal must be the standardi ze d. (High: Less than V

, Low: More than –0.2V)

CC

Block Diagram

Figure 2 shows the block diagram. As this IC is built-in REC return switch, the configuration system can be simple system using a few

external component and the REC/PB head. As this IC adopted Hi-z SW of REC-EQ output and the input mute system, it realizes REC mute

attenuation and pop-noise reduction securing in REC mute. About these logics, please look at the Parallel Data Format.

REC IN

21

PBOUT

15

B head

A head

RECOUT

PB IN(B)

PB IN(A)

2

4

5

8

Hi-Z SW

RETURN SW

B

A

–

REC - EQ

+

–

Vref

Rev.3, Jun. 1999, page 8 of 27

7

10 13

Figure 2 Block Diagram (Lch)

Normal Speed PB - A

HA12207NT

Level Block Diagram

The gain establishment of PB-EQ considers PB output level {(external AMP+PB AMP)=300mV(Dolby Level)} like figure 3 as the target.

Regarding REC-EQ adjust the gain in front of input to this IC. The level diagram of 1kHz is shown figure 4. (Normal speed) Similarly to PB, it consider Dolby level as a standard. And R1 needs the value more than 5.6kΩ. Because mode establishment resistances are built-in, REC-EQ frequ e n cy characteristics are respectiv ely

fixed value. In case the change of the frequency characteristics are necessary, please inquire the responsible agent

because the adjustment of resistors is necessary.

300mV

(Dolby level)

63.6mV

HA12134A

0.6mV

40.5dB 20dB

PB-EQ

Dolby IC

Figure 3 PB Level Block Diagram (Normal Speed, 1kHz)

Rev.3, Jun. 1999, page 9 of 27

HA12207NT

1.8V

300mV

(Dolby level)

100mV

REC - EQ Clip level

263mV

1kHz

REC - EQ

Figure 4 REC Level Block Diagram (Normal Speed, 1kHz)

Absolute Maximum Rating (Ta = 25°C)

Item Symbol Rating Unit Note

Max supply voltage VCC max 16 V Power dissipation Pd 500 mW Ta≤75°C Operating temperature Topr –40 to +75 °C Storage temperature Tstg –55 to +125 °C Operating voltage Vopr 9.5 to 15 V Note: HA12207NT operates on single supply voltage.

Rev.3, Jun. 1999, page 10 of 27

Electrical Characteristics (Ta = 25°C, VCC = 10.5V, Vref = 5.25V)

1

16, 171816, 17, 18

15

Output

Input

RL

R L COM

14 21 20

2 3 8 9

8/5 14 15 9/6

151515 141414

8/5

8/5 9/6

9/6

2

*

14 15 8/5 9/6

14 15 9/6 8/5

15 14 5 6

8 9

HA12207NT

No signal

Other

Vin

(mVrms)

———

fin

(Hz)

———

——

MUTE

———

HSP

Normal

Test Condition Application Terminal

/B

IC Condition

AQuiescent current

——A/B

—

mAVVVdB

32.0

1.0

3.0

22.4———60

16.0

-0.2

(1)

(2)

IL

Q

I

V

REC-EQ → PB-EQ

PB-EQ → REC-EQ

*1*10.6

1k

Mute

OFF

Mute

Normal

A

dB

CC

—

V

—

70

4.0

50

60

IH

CT PB/REC(1)

V

CT PB/REC(2)

1k

OFF

Mute

Normal

A/B

dBdBdB

43.5

40.5

37.5

PB(1) G

THD=1%

0.6

—

10k

20k1k1k—1k

Mute

Normal

High

Normal

A/B

Vrms

39.2

33.5—0.5

36.2

30.5

0.6

33.2

27.5

0.3

PB(2)

PB(3)

V

G

Vomax PB

Rg=820Ω, DIN-AUDIO

0.6—*1*

Mute

Normal

A/B

A/BAB

µVrms

%

dB

180——

0.19060

——50

PB

N

THD PB

V

CT R/L(1)

1

1k

Mute

Normal

dB

70

60

CT A/B

Item Symbol Min Typ Max Unit

Logical threshold

PB-REC crosstalk

PB-EQ gain

PB-EQ

maximum output

PB-EQ THD

PB-EQ noise voltage

PB-EQ

channel separation

PB-EQ crosstalk

Note: 1. Large level without clipping

=9.5V, Vref=4.75V

CC

2. V

Rev.3, Jun. 1999, page 11 of 27

HA12207NT

Electrical Characteristics (Ta = 25°C, VCC = 10.5V, Vref = 5.25V) (cont)

2

Output

Input

2 3

RL

21

R L COM

20

2 3 21 20

21 3 2 20

3 21 20

2 3 21 20

32 21 20

32

32 21

21 20

20

4

2 3 21 20

20 21 3 2

Other

10

Vin

(mVrms)

fin

(Hz)

Test Condition Application Terminal

/B HSP

IC Condition

10

1k

5k

Mute

OFF

Mute

Normal

A

dB

9.9

14.3

8.4

12.3

6.9

10.3

REC-NN1

REC-NN2

V

G

10

10k

OFF

Mute

Normal

A

dB

24.7

21.7

18.7

REC-NN3

V

G

10

2k

OFF

Mute

High

A

dB

10.6

9.1

7.6

REC-HN1

V

G

10

10k

OFF

Mute

High

A

dB

16.1

14.1

12.1

REC-HN2

V

G

10

20k

OFF

Mute

High

A

dB

25.9

22.9

19.9

REC-HN3

V

G

*3*3—

1k

OFF

Mute

OFF

Normal

A

dB

—

60

50

CT R/L(2)

THD=1%*

1k

Mute

OFF

Normal

A

%

Vrms

—

80

1.8

70

1.2

R-MUTE ATT

Vomax REC

100

1k

——

Mute

OFF

Mute

OFF

Normal

A

%

0.7

0.35

—

52 56 — dB

THD REC

S/N REC

REC-EQ frequency

response

Normal speed

Item Symbol Min Typ Max Unit

REC-EQ frequency

Rev.3, Jun. 1999, page 12 of 27

response

High speed

REC-MUTE

attenuation

REC-EQ

channel separation

maximum output

REC-EQ THD

REC-EQ S/N Rg=5.1kΩ, A-WTG

=9.5V, Vref=4.75V

CC

4. V

Note: 3. Large level without clipping

Test Circuit

SW11

Lch

Rch

SW6

Lch

Rch

HA12207NT

NOISE

METER

SCOPE

OSCILLO

ANALYZER

REC

DISTORTION

AC VM2

C7

PB-NF(R)

PB-NF(L)

A(R)

A(L)

VREF

0.01µ

C8

0.01µ

C6

R6

820

C5

R5

820

NOISE METER WITH

AÆWTG FILTER

22µ

SW12

PB

PB⋅EQ(R)

PB⋅EQ(L)

+

R7

C9

10k

2.2µ

+

R8

10k

C10

2.2µ

Ain

15 14

PB-OUT(R)

PB-OUT(L)

/B

Bin

C4

22µ

Nor

Hi Mute

SW3 SW2 SW1

NotMute

R9

R10

5.1k

R11

5.1k

22k

C11

C12

IREF

HA12207NT (DP-22S)

IREF

GND

REC-IN(R)

REC-IN(L)

REC

PB

CC

+

0.1µ

+

21 20 19 18 17 16 13 12

0.1µ

22

+++

B(R)

R4

+

B(L)

R3

REC-RETURN

REC-OUT (R)

C2

2.2µ

REC-OUT (L)

++

234567891011

C1

2.2µ

V

1

C13

+

820

R2

R1

R13

100µ

C3

22µ

5.6k

470

R14

+

C14

C : F

AND DIN-AUDIO FILTER

Unit R : Ω

SW7

Rch

Lch

Rch

Lch

Bin

SW9

1

CC

SOURCE 2

2V

CC

V

SOURCE 1

SW8

470

470µ

DC

Ain

Lch

Rch

SW10

SW5

OFF

SW4

ON

AC VM1 Audio-SG

Rev.3, Jun. 1999, page 13 of 27

HA12207NT

Characteristic Curves

25

Quiescent Current vs. Supply Voltage

20

Ain, Normal speed Ain, High speed Bin, Normal speed Bin, High speed

15

Quiescent Current (mA)

10

8

10 12 14

VTH vs. Supply Voltage (1)

4

Ain/Bin

Supply Voltage (V)

16

V

IH

3

(V)

TH

V

2

1

8

Rev.3, Jun. 1999, page 14 of 27

V

IH

IL

Check level ±0.5dB

10 12 14

Supply Voltage (V)

V

IL

16

4

Speed Normal/High

3

(V)

TH

V

2

1

8

VTH vs. Supply Voltage (2)

V

IH

IL

Check level ±0.5dB

10 12 14

Supply Voltage (V)

HA12207NT

V

IH

V

IL

16

(V)

TH

V

4

3

2

1

8

Mute ON/OFF

10 12 14

VTH vs. Supply Voltage (3)

V

IH

IL

Check level ±0.5dB

Supply Voltage (V)

V

IH

V

IL

16

Rev.3, Jun. 1999, page 15 of 27

HA12207NT

500

400

300

∆ Vref (mV)

200

100

Altered Reference Voltage vs. External Impedance

CC

Vref

71

R

VCC=10.5V Normal speed

V

0

100

0

RIN=60mVrms=0dB V

=10.5V

CC

–20

–40

–60

Crosstalk (dB)

–80

500 1k

5k 10k 50k 100k 500k

External Bleeder Resistor R (Ω)

REC-EQ→PB-EQ Mode Crosstalk vs. Frequency

Normal speed

High speed

1M

–100

10

Rev.3, Jun. 1999, page 16 of 27

100 1k 10k 100k

Frequency (Hz)

1M

0

PBOUT=100mVrms=0dB

=10.5V

V

CC

–20

–40

–60

Crosstalk (dB)

–80

HA12207NT

PB-EQ→REC-EQ Mode Crosstalk vs. Frequency

High speed

Normal speed

–100

10

0

Ain V

=10.5V

CC

–20

–40

–60

–80

PBOUT Ripple Rejection Ratio (dB)

100 1k 10k 100k

Ripple Rejection Ratio vs. Frequency (1)

1M

Frequency (Hz)

High speed

Normal speed

–100

10

100 1k 10k 100k

Frequency (Hz)

Rev.3, Jun. 1999, page 17 of 27

1M

HA12207NT

0

–10

–20

–30

–40

RECOUT Ripple Rejection Ratio (dB)

Ripple Rejection Ratio vs. Frequency (2)

VCC=10.5V

Normal speed

High speed

–50

10

70

60

50

40

PB-EQ Gain (dB)

30

100 1k 10k 100k

Frequency (Hz)

PB-EQ Gain vs. Frequency

Ain=Vin=0.6mVrms V

=10.5V

CC

Normal speed

High speed

1M

20

10

Rev.3, Jun. 1999, page 18 of 27

100 1k 10k

Frequency (Hz)

100k

PB-EQ Maximum Output Level vs. Supply Voltage

4.5

4.0

3.5

3.0

2.5

2.0

Maximum Output Level Vomax (Vrms)

1.5

1.0 8

100Hz (30kHz L.P.F.) 1kHz (400Hz H.P.F. + 30kHz L.P.F) 10kHz (400Hz H.P.F. + 80kHz L.P.F)

Normal speed

10 12 14

Supply Voltage (V)

HA12207NT

16

80

70

60

50

40

Noise Voltage (µVrms)

30

20

Noise Voltage vs. Supply Voltage

Normal speed

DIN-AUDIO

High speed

Normal speed

CCIR/ARM

High speed

8

10 12 14

Supply Voltage (V)

16

Rev.3, Jun. 1999, page 19 of 27

HA12207NT

PB-EQ Total Harmonic Distortion vs. Output Level

100Hz (30kHz L.P.F.) 1kHz (400Hz H.P.F. + 30kHz L.P.F) 10kHz (400Hz H.P.F. + 80kHz L.P.F)

Normal speed, VCC=10.5V

1.0

0.1

Total Harmonic Distortion (%)

0.01

–20

–10 0 10

Output Level (dBs)

20

0

Vin=+20dB=6mVrms V

=10.5V

CC

–20

–40

–60

Crosstalk (dB)

–80

–100

10

PB-EQ Crosstalk (Ain→Bin) vs. Frequency

Normal speed

High speed

100 1k 10k 100k

Frequency (Hz)

1M

Rev.3, Jun. 1999, page 20 of 27

0

Vin=+20dB=6mVrms V

=10.5V

CC

–20

–40

HA12207NT

PB-EQ Crosstalk (Bin→Ain) vs. Frequency

–60

Crosstalk (dB)

–80

–100

10

0

–20

–40

Normal speed High speed

100 1k 10k 100k

Frequency (Hz)

PB-EQ Channel Separation (Lch→Rch) vs. Frequency

Normal speed

1M

–60

Channel Separation (dB)

–80

–100

10

100 1k 10k 100k

High speed

1M

Frequency (Hz)

Rev.3, Jun. 1999, page 21 of 27

HA12207NT

0

–20

–40

–60

Channel Separation (dB)

–80

PB-EQ Channel Separation (Rch→Lch) vs. Frequency

Normal speed

High speed

–100

10

40

VCC=10.5V Vin=10mVrms

30

20

REC-EQ Gain (dB)

10

100 1k 10k 100k

Frequency (Hz)

REC-EQ Gain vs. Frequency

Normal speed

1M

High speed

0 100

Rev.3, Jun. 1999, page 22 of 27

500 1k

5k 10k 50k

Frequency (Hz)

100k

REC-EQ Maximum Output Level vs. Supply Voltage

4.5

4.0

3.5

3.0

2.5

2.0

Maximum Output Level Vomax (Vrms)

1.5

1.0 8

100Hz (30kHz L.P.F.) 1kHz (400Hz H.P.F. + 30kHz L.P.F) 10kHz (400Hz H.P.F. + 80kHz L.P.F)

Normal speed

10 12 14

Supply Voltage (V)

HA12207NT

16

Signal to Noise Ratio vs. Supply Voltage

70

Vin=10mVrms A-WTG

65

60

55

50

Signal to Noise Ratio S/N (dB)

45

40

8

10 12 14

Supply Voltage (V)

High speed

Normal speed

16

Rev.3, Jun. 1999, page 23 of 27

HA12207NT

REC-EQ Total Harmonic Distortion vs. Output Level

10

1.0

0.1

Total Harmonic Distortion (%)

0.01 –20

100Hz (30kHz L.P.F.) 1kHz (400Hz H.P.F. + 30kHz L.P.F) 10kHz (400Hz H.P.F. + 80kHz L.P.F)

Normal speed, VCC=10.5V

–10 0 10

Output Level (dBv)

20

REC-EQ Channel Separation (Lch→Rch) vs. Frequency

0

–20

–40

–60

Channel Separation (dB)

–80

–100

100

Normal speed

High speed

1k 10k 100k

Frequency (Hz)

1M

Rev.3, Jun. 1999, page 24 of 27

0

Normal speed V

=10.5V

CC

–20

–40

–60

Mute Attenuation (dB)

–80

–100

100

Mute Attenuation vs. Frequency

1k 10k 100k

Frequency (Hz)

HA12207NT

1M

200

175

150

125

100

75

REC-RETURN SW Resistor (Ω)

50

25

VCC=10.5V

R =

4

–40

REC-RETURN SW Resistor vs. Input Level

820

V

1020 – 1

R

CC

Bin

5

+

100µ

820Ω

Vin=775mVrms

V

R.Return

1

V

2

f=100, 1k, 10kHz

–30 –10 0

–20

Input Level (dBm)

10

Rev.3, Jun. 1999, page 25 of 27

HA12207NT

Package Dimensions

Unit: mm

19.2

20.32 Max

22

12

6.3

1

0.89

1.0

11

7.4 Max

1.17 Max

1.78 ± 0.25

0.48 ± 0.10

0.51 Min

2.90 Min 5.06 Max

Hitachi Code JEDEC EIAJ Weight

7.62

+ 0.10

0.25

– 0.05

0˚ – 15˚

(reference value)

DP-22NS

—

Conforms

0.90 g

Rev.3, Jun. 1999, page 26 of 27

HA12207NT

Disclaimer

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 u se 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.

Sales Offices

Hitachi, Ltd.

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For further information write to:

Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223

Europe : http://www.hitachi-eu.com/hel/ecg Asia : http://sicapac.hitachi-asia.com Japan : http://www.hitachi.co.jp/Sicd/indx.htm

Hitachi Europe GmbH Electronic Components Group Dornacher Straße 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00

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

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

Rev.3, Jun. 1999, page 27 of 27

Datasheet HA12207NT Datasheet (HIT)

Specifications and Main Features

Frequently Asked Questions

User Manual

Parallel Data Format

Power Supply Range

Reference Voltage

Operating Mode Control

Block Diagram

Level Block Diagram

Test Circuit

Characteristic Curves