Page 1
HA12134A, HA12135A, HA12136A
Dolby B-Type Noise Reduction System
ADE-207-016B (Z)
3rd Edition
Jun. 1999
Description
The HA12134A, HA12135A, HA12136A are silicon monolithic bipolar IC series providing dual channel
Dolby B-type noise reduction system* in one chip. The circuit is used primarily to reduce the level of
background noise introduced during recording and playback of audio signals on magnetic tape.
HA12134A series provide the following functions and features.
Functions
• Dual Dolby B-type NR processor
• NR ON/OFF control switch.
• Record (encode)/playback (decode) control switch.
Features
• Separate record/playback input and output.
Unprocessed signal output available in the encode and decode modes.
• Reduction of external components count.
• Small capacitor value for the reference voltage.
• NR ON/OFF switching and REC/PB switching are provided internally.
• 2-type package (DP-16, FP-16DA)
• Wide range of operating supply voltage.
* 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.
Page 2
HA12134A, HA12135A, HA12136A
Ordering Information
Type No Dolby Level (mVrms) Package
HA12134A 300 DP-16
HA12134AF FP-16DA
HA12135A 450 DP-16
HA12135AF FP-16DA
HA12136A 580 DP-16
HA12136AF FP-16DA
Block Diagram
REC IN
16
GND
15
PB IN
14 13
SW
BIAS
SW
321
1 µ
REC IN V PB IN V
CC
4
+
REF
18 k
BUF
AMP
BUF
AMP
22 µ
NR
ON/OFF
REC/PBBIAS
12
PB OUT
22 k
11
DET
10
REC OUT
0.22 µ
9
SIDE
CHAIN
SIDE
CHAIN
8765
22 k
+
0.22 µ
PB OUT DET REC OUT
Rev.3, Jun. 1999, page 2 of 27
Page 3
HA12134A, HA12135A, HA12136A
Absolute Maximum Ratings (Ta = 25°C, Unless otherwise specified.)
Item Symbol Rating Unit Note
Supply voltage Vccmax 16 V
Power dissipation Pd 250 mW Ta ≤ 85°C
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –55 to +125 °C
Lead temperature TI 260 °C Note 1
Note: 1. Soldering 10 sec.
Rev.3, Jun. 1999, page 3 of 27
Page 4
HA12134A, HA12135A, HA12136A
Electrical Characteristics (Ta = 25°C, VCC = 12 V, Unless otherwise specified.)
Item Symbol Min Typ Max Unit Test conditions
Operating voltage HA12134A Vope 6.5 12.0 16.0 V Enable functional operations
HA12135A 8.0 12.0 16.0
HA12136A 9.5 12.0 16.0
Quiescent current I
Voltage gain of HA12134A G
Q
VIA
input amp HA12135A 24.5 26.5 28.5 (Pin 16→Pin 11)
HA12136A 26.5 28.5 30.5 Vout = 0 dB, f = 1 kHz
NR encode boost
V 8 (9) (NR ON)
ENC-1.4
k (1)
V 8 (9) (NR OFF) ENC-1.4
k (2)
ENC-5 k
(1)
ENC-5 k
(2)
ENC-10
k (1)
ENC-10
k (2)
T.H.D (REC) T.H.D
(REC)
Signal handling HA12134A Vomax 12.0 13.0 — dB f = 1 kHz, VCC = 6.5 V
HA12135A (REC) T.H.D = 1% VCC = 8.0 V
HA12136A VCC = 9.5 V
Signal/noise ratio
(REC)
Crosstalk (ENC)
(Pin 8 – Pin 9)
Control voltage for
S/N
(REC)
CT R→L
L→R
REC 2.5 — V
REC/PB
PB 0.0 — 0.5
Control voltage for
ON 2.5 — V
NR ON/OFF
OFF 0.0 — 0.5
Channel balance ∆G
VIA
— 7 — mA No signal, REC NR-ON
21.0 23.0 25.0 dB Pin 1→Pin 6
2.9 4.4 5.9 dB f = 1.4 kHz
V 8 (9) (NR OFF) = –20 dB
6.0 7.5 9.0 dB f = 1.4 kHz
V 8 (9) (NR OFF) = –30 dB
1.7 3.2 4.7 dB f = 5 kHz
V 8 (9) (NR OFF) = –20 dB
6.7 8.2 9.7 dB f = 5 kHz
V 8 (9) (NR OFF) = –30 dB
–1.1 0.4 1.9 dB f = 10 kHz
V 8 (9) (NR OFF) = 0 dB
9.8 10.4 11.8 dB f = 10 kHz
V 8 (9) (NR OFF) = –40 dB
— 0.05 0.3 % f = 1 kHz
V 8 (9) (NR ON) = 0 dB
62.0 68.0 — dB Rg = 5.1 kΩ
weighted
CCIR/ARM
52.0 60.0 — dB f = 1 kHz
NR OFF
V
CC
V
CC
REC/PB
12
Measure
NR
ON/OFF
5
22 k
Measure
22k
–1.0 0.0 1.0 dB
Rev.3, Jun. 1999, page 4 of 27
Page 5
HA12134A, HA12135A, HA12136A
Electrical Characteristics (Ta = 25°C, VCC = 12 V, Unless otherwise specified.) (cont)
Item Symbol Min Typ Max Unit Test conditions
Offset voltage
V 8 (9) (NR-ON) –
V 8 (9) (NR-OFF)
Test Circuit
∆Vorec –50 0.0 50 mV
REC mode
V
= 16.0 V
CC
SW1
OFF ON
AUDIO SG
HP339A or
EQUIVALENT
SW9
SW3
R10
10k
C11
+
P
0.68µ
C12
R
+
R11
5.1k
L
SW2
R
R1
5.1k
R2
10k
16
1µ
C1
+
1µ
R
C2
P
+
0.68µ
15 14
GND PB IN BIAS REC/PBPB
REC
IN
REC
IN
Vcc PB IN V
31
2
C3
100µ
+
OFF ON
SW10
DC POWER
SOURCE
To Vcc
SW8
PBREC
C10
0.22µ
DET REC
OUT
REC
OUT
DET
7
C5
0.22µ
9
NR
ON/OFFPBOUT
C13
+
22µ
ON
12
5
SW4
R8
22k
R3
22k
11 10
OUT
6
OFF
R9
18k
13
REF
4
+
C4
1µ
R7
C9
10k
+
SW7
10µ
P
C8
R
+
10µ
R6
10k
SW6
R5
C7
8
+
R
10µ
P
C6
SW5
+
10µ
R4
10k
AC VOLT
METER
HP 400E or
EQUIVALENT
DISTORTION
ANALYZER
HP339A or
EQUIVALENT
OSCILLOSCOPE
TEKTRO 475 or
EQUIVALENT
NOISE METER
WITH CCIR/
ARM FILTER
Notes: 1. Resistor tolerances are ±1%
2. Capacitor tolerances are ±1%
3. Unit R: Ω C: F
Rev.3, Jun. 1999, page 5 of 27
Page 6
HA12134A, HA12135A, HA12136A
Pin Description (Ta = 25°C, VCC = 12 V, No signal, The value in the table show typical
value.)
Pin No. Symbol R (in) VDC Equivalent circuit Description
1, 16 REC IN 56 kΩ 6.0 V
V
56k
V /2
GND
2VCC— 12.0 V Power supply
3, 14 PB IN 100 kΩ 6.0 V
V
Recording (encode) input
CC
CC
Playback (decode) input
CC
4V
REF
— 6.0 V Reference voltage
5 NR ON/OFF — —
6, 11 PB OUT — 6.0 V
100k
1k
100
100
100k
V
GND
CC
V /2
GND
V
CC
3 V
GND
CC
BE
4 V
Mode control pin for NR
ON/OFF
“H”→NR ON
“L”→NR OFF
BE
Playback (decode) output
Rev.3, Jun. 1999, page 6 of 27
Page 7
HA12134A, HA12135A, HA12136A
Pin Description (Ta = 25°C, VCC = 12 V, No signal, The value in the table show typical
value.) (cont)
Pin No. Symbol R (in) VDC Equivalent circuit Description
7, 10 DET — 1.3 V
8, 9 REC OUT — 6.0 V
100
100
V
CC
GND
V
CC
Time constant pin for the
level detector
Recording (encode)
output
12 REC/PB — —
13 BIAS — 1.0 V
15 GND — 0 V
—
1k
GND
100k
V
CC
GND
V
CC
3 V
4 V
GND
Mode control pin for
REC/PB (encode/decode)
“H” → REC (encode)
“L” → PB (decode)
BE
BE
Reference current input
pin for the active filters
Ground
Rev.3, Jun. 1999, page 7 of 27
Page 8
HA12134A, HA12135A, HA12136A
10
No Signal
8
Q
6
4
Quiescent current I [mA]
2
0
4681012141618
Supply voltage Vcc [V]
Figure 1 Quiescent Current vs. Supply Voltage
HA12134A/5A/6A
NR-ON
NR-OFF
3.0
HA12134A/5A/6A
2.5
2.0
1.5
1.0
Control voltage (REC/PB) [V]
0.5
0
4 6 8 101214 1618
REC Mode
PB Mode
Supply voltage Vcc [V]
Figure 2 REC/PB Control Voltage vs. Supply Volta ge
Rev.3, Jun. 1999, page 8 of 27
Page 9
3.0
2.5
HA12134A, HA12135A, HA12136A
HA12134A/5A/6A
2.0
1.5
1.0
Control voltage (NR-ON/OFF) [V]
0.5
0
4 6 8 101214 1618
NR-ON
NR-OFF
Supply voltage Vcc [V]
Figure 3 NR-ON/OFF Control Voltage vs. Supply Voltage
12
10
8
6
HA12136A
12 V
16 V
–40 dB
9.5 V
–30 dB
4
Encode boost [dB]
2
0
100 200
Figure 4 Encode Boost vs. Frequency
500 1 k 2 k 5 k
Frequency [Hz]
–20 dB
–10 dB
10 k
20 k
0 dB
100 k
50 k
Rev.3, Jun. 1999, page 9 of 27
Page 10
HA12134A, HA12135A, HA12136A
30
HA12136A
20
10
Output gain Gv [dB]
0
100 300
Figure 5 REC Mode Output Gain vs. Frequency
HA12136A
30
20
600 1 k
3 k
6 k
10 k
Frequency [Hz]
30 k
60 k
PB Out
NR–ON/OFF
REC Out
NR–OFF
100 k
300 k 600 k 1 M
REC Out
NR–ON
PB Out
NR–OFF
10
Output gain Gv [dB]
0
100 300
Figure 6 PB Mode Output Gain vs. Frequency
600
1 k
3 k
6 k
10 k
Frequency [Hz]
30 k
REC Out
NR–OFF
100 k 300 k 600 k 1 M
60 k
Rev.3, Jun. 1999, page 10 of 27
Page 11
–10
HA12134A, HA12135A, HA12136A
HA12136A
0
–20
–30
Ripple rejection ratio R.R.R. [dB]
–40
100 200
400
Figure 7 REC Mode Ripple Rejection Ratio vs. Frequency
–10
–20
–30
HA12136A
1 k
Frequency [Hz]
NR–ON
NR–OFF
2 k
NR–OFF
4 k
6 k
10 k
20 k
–40
Ripple rejection ratio R.R.R. [dB]
–50
100 200
400
Figure 8 PB Mode Ripple Rejection Ratio vs. Frequency
1 k
Frequency [Hz]
NR–ON
2 k
4 k 10 k
20 k
Rev.3, Jun. 1999, page 11 of 27
Page 12
HA12134A, HA12135A, HA12136A
10
HA12136A
3
1.0
0.3
T.H.D. [%]
0.1
10 kHz
V = 12 V
CC
0.03
1 kHz
100 Hz
0.01
–25 –20 –15 –10 –50 5101520
V [dB]
out
Figure 9 REC NR-OFF Total Harmonic Distortion vs. Output Level
10
HA12136A
3
V = 12 V
1.0
0.3
T.H.D. [%]
0.1
0.03
CC
10 kHz
1 kHz
100 Hz
0.01
–25 –20 –15 –10 –50 5101520
Figure 10 REC NR-ON Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 12 of 27
V [dB]
out
Page 13
HA12134A, HA12135A, HA12136A
10
HA12136A
3
V = 12 V
1.0
0.3
T.H.D. [%]
0.1
100 Hz
0.03
1 kHz
0.01
–25 –20 –15 –10 –50 5101520
V [dB]
out
Figure 11 PB NR-OFF Total Harmonic Distortion vs. Output Level
CC
10 kHz
10
HA12136A
3
V = 12 V
1.0
CC
0.3
T.H.D. [%]
0.1
100 Hz
0.03
1 kHz
10 kHz
0.01
–30
–25 –20 –15 –10 –50 5101520
V [dB]
out
Figure 12 PB NR-ON Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 13 of 27
Page 14
HA12134A, HA12135A, HA12136A
20
19
18
17
omax
16
15
14
13
12
Maximum output level V [dB]
11
10
HA12136A
8 9 10 11 12 13 14 15 16
PB NR-ON
REC NR-OFF
PB NR-OFF
REC NR-ON
Supply voltage V [V]
CC
Figure 13 Maximum Output Level vs. Supply Voltage
90
HA12136A
PB NR-ON
85
80
75
S/N [dB]
70
REC NR-OFF
PB NR-OFF
REC NR-ON
65
60
55
8
10 12 14 16 18
Supply voltage V [V]
CC
Figure 14 REC/PB Signal To Noise Ratio vs. Supply Volt age
Rev.3, Jun. 1999, page 14 of 27
Page 15
12
HA12135A
HA12134A, HA12135A, HA12136A
12 V
16 V
10
8
6
4
Encode boost [dB]
2
0
100 200
HA12135A
30
20
–40 dB
8.0 V
–30 dB
–20 dB
–10 dB
500
1 k 2 k 5 k
10 k
20 k
Frequency [Hz]
Figure 15 Encode Boost vs. Frequency
0 dB
50 k 100 k
PB Out
NR–ON/OFF
10
Output gain Gv [dB]
0
100 300
Figure 16 REC Mode Output Gain vs. Frequency
600 1 k
3 k
6 k
10 k
Frequency [Hz]
30 k
REC Out
NR–OFF
100 k 300 k 600 k 1 M
60 k
Rev.3, Jun. 1999, page 15 of 27
Page 16
HA12134A, HA12135A, HA12136A
30
HA12135A
20
10
Output gain Gv [dB]
0
100 300
Figure 17 PB Mode Output Gain vs. Frequency
–10
–20
600 1 k
HA12135A
3 k
6 k
10 k
Frequency [Hz]
NR–ON
30 k
REC Out
NR–ON
REC Out
NR–OFF
60 k
100 k 300 k 600 k
PB–Out
NR–OFF
1 M
–30
NR–OFF
–40
Ripple rejection ratio R.R.R. [dB]
–50
100 200
400
1 k
2 k
4 k 10 k
20 k
Frequency [Hz]
Figure 18 REC Mode Ripple Rejection Ratio vs. Frequency
Rev.3, Jun. 1999, page 16 of 27
Page 17
–10
–20
–30
HA12134A, HA12135A, HA12136A
HA12135A
–40
Ripple rejection ratio R.R.R. [dB]
–50
100 200
400
NR–OFF
1 k
NR–ON
2 k
4 k 10 k
Frequency [Hz]
Figure 19 PB Mode Ripple Rejection Ratio vs. Frequency
10
HA12135A
3
V = 12 V
1.0
0.3
T.H.D. [%]
0.1
10 kHz
CC
20 k
0.03
100 Hz
1 kHz
0.01
–20 –15 –10
–5
0 5 10 15 20
V [dB]
out
Figure 20 REC NR-OFF Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 17 of 27
Page 18
HA12134A, HA12135A, HA12136A
10
HA12135A
3
1.0
0.3
T.H.D. [%]
0.1
0.03
0.01
–20 –15 –10
Figure 21 REC NR-ON total Harmonic Distortion vs. Output Level
–5
CC
V = 12 V
10 kHz
1 kHz
100 Hz
0 5 10 15 20
V [dB]
out
10
HA12135A
3
V = 12 V
1.0
CC
0.3
T.H.D. [%]
0.1
100 Hz
10 kHz
0.03
1 kHz
0.01
–20 –15 –10
–5
0 5 10 15 20
V [dB]
out
Figure 22 PB NR-OFF Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 18 of 27
Page 19
10
3
1.0
0.3
T.H.D. [%]
0.1
HA12135A
HA12134A, HA12135A, HA12136A
V = 12 V
CC
100 Hz
0.03
10 kHz
1 kHz
0.01
–20 –15 –10
–5
0 5 10 15 20
V [dB]
out
Figure 23 PB NR-ON Total Harmonic Distortion vs. Output Level
22
20
omax
18
16
14
Maximum output level V [dB]
12
HA12135A
PB NR-ON
REC NR-OFF
PB NR-OFF
REC NR-ON
10
7
8 9 10 11 12 13 14 15 16
Supply voltage V [V]
CC
Figure 24 Maximum Output Level vs. Supply Voltage
Rev.3, Jun. 1999, page 19 of 27
Page 20
HA12134A, HA12135A, HA12136A
90
HA12135A
85
PB NR-ON
80
75
S/N [dB]
70
65
60
55
6
8
REC NR-OFF
PB NR-OFF
REC NR-ON
10 12 14 16 18
Supply voltage V [V]
CC
Figure 25 REC/PB Signal to Noise Ratio vs. Supply Voltage
12
10
8
6
HA12134A
12 V
16 V
–40 dB
6.5 V
–30 dB
4
Encode boost [dB]
2
0
100 200
Rev.3, Jun. 1999, page 20 of 27
–20 dB
–10 dB
500
1 k 2 k 5 k
Frequency [Hz]
20 k 50 k 100 k
10 k
Figure 26 Encode Boost vs. Frequency
0 dB
Page 21
HA12134A, HA12135A, HA12136A
30
HA12134A
20
10
Output gain Gv [dB]
0
100 300
Figure 27 REC Mode Output Gain vs. Frequency
HA12134A
30
20
600
1 k
3 k
6 k
10 k
Frequency [Hz]
30 k
60 k
PB Out
NR–ON/OFF
REC Out
NR–OFF
100 k
600 k
300 k
REC Out
NR–ON
PB Out
NR–OFF
1 M
10
Output gain Gv [dB]
0
100 300
600
Figure 28 PB Mode Output Gain vs. Frequency
1 k
3 k
6 k
10 k
Frequency [Hz]
30 k
60 k
REC Out
NR–OFF
100 k
300 k
600 k
1 M
Rev.3, Jun. 1999, page 21 of 27
Page 22
HA12134A, HA12135A, HA12136A
HA12134A
–10
–20
–30
–40
Ripple rejection ratio R.R.R. [dB]
–50
100 200
400
NR–OFF
1 k
2 k
4 k
10 k
20 k
Frequency [Hz]
Figure 29 REC Mode Ripple Rejection Ratio vs. Frequency
HA12134A
–10
–20
–30
NR–ON
–40
Ripple rejection ratio R.R.R. [dB]
–50
100 200
Figure 30 PB Mode Ripple Rejection Ratio vs. Frequency
Rev.3, Jun. 1999, page 22 of 27
400
Frequency [Hz]
NR–OFF
1 k
NR–ON
2 k
4 k 10 k
20 k
Page 23
10
3
1.0
0.3
T.H.D. [%]
0.1
HA12134A
HA12134A, HA12135A, HA12136A
V = 12 V
CC
10 kHz
0.03
1 kHz
100 Hz
0.01
–20 –15 –10
0 5 10 15 20
–5
V [dB]
out
25
Figure 31 REC NR-OFF Total Harmonic Distortion vs. Output Level
10
HA12134A
3
V = 12 V
1.0
0.3
T.H.D. [%]
0.1
0.03
10 kHz
CC
100 Hz
1 kHz
0.01
–20 –15 –10
0 5 10 15 20
–5
V [dB]
out
25
Figure 32 REC NR-ON Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 23 of 27
Page 24
HA12134A, HA12135A, HA12136A
10
HA12134A
3
1.0
0.3
T.H.D. [%]
0.1
0.03
0.01
–20 –15 –10
Figure 33 PB NR-OFF Total Harmonic Distortion vs. Output Level
1 kHz
–5
V = 12 V
CC
100 Hz
10 kHz
0 5 10 15 20
V [dB]
out
25
10
HA12134A
3
V = 12 V
1.0
CC
0.3
T.H.D. [%]
0.1
100 Hz
0.03
1 kHz
10 kHz
0.01
–20 –15 –10
0 5 10 15 20
–5
V [dB]
out
25
Figure 34 PB NR-ON Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 24 of 27
Page 25
omax
26
24
22
HA12134A, HA12135A, HA12136A
HA12134A
PB NR-ON
20
REC NR-OFF,
PB NR-OFF
18
REC NR-ON
16
Maximum output level V [dB]
14
12
765
8 9 10 11 12 13 14 15 16
Supply voltage V [V]
CC
Figure 35 Maximum Output Level vs. Supply Voltage
90
HA12134A
85
80
75
S/N [dB]
70
65
PB NR-ON
REC NR-OFF
PB NR-OFF
REC NR-ON
60
55
64
10 12 14 16 18
8
Supply voltage V [V]
CC
Figure 36 REC/PB Signal To Noise Ratio vs. Supply Volt age
Rev.3, Jun. 1999, page 25 of 27
Page 26
HA12134A, HA12135A, HA12136A
Package Dimesnsions
19.20
20.00 Max
16 9
1.3
1.11 Max
2.54 ± 0.25
0.48 ± 0.10
10.06
10.5 Max
16
Unit: mm
6.30
81
7.40 Max
7.62
5.06 Max
2.54 Min
0.51 Min
0.25
+ 0.13
– 0.05
0˚ – 15˚
Hitachi Code
JEDEC
EIAJ
(reference value)
Weight
DP-16
Conforms
Conforms
1.07 g
Unit: mm
9
1
1.27
*0.42 ± 0.08
0.40 ± 0.06
*Dimension including the plating thickness
Base material dimension
Rev.3, Jun. 1999, page 26 of 27
0.80 Max
8
0.10 ± 0.10
0.15
0.12
5.5
2.20 Max
M
7.80
0.20 ± 0.04
*0.22 ± 0.05
0.70 ± 0.20
Hitachi Code
JEDEC
EIAJ
(reference value)
Weight
+ 0.20
– 0.30
1.15
0˚ – 8˚
FP-16DA
—
Conforms
0.24 g
Page 27
HA12134A, HA12135A, HA12136A
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, in cluding
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.
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
URL NorthAmerica : http:semiconductor.hitachi.com/
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 (Singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm
Asia (Taiwan) : http://www.hitachi.com.tw/E/Product/SICD_Frame.htm
Asia (HongKong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm
Japan : http://www.hitachi.co.jp/Sicd/indx.htm
Hitachi Europe GmbH
Electronic components Group
Dornacher Straβe 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) 778322
Hitachi Asia Pte. Ltd.
16 Collyer Quay #20-00
Hitachi Tower
Singapore 049318
Tel: 535-2100
Fax: 535-1533
Hitachi Asia Ltd.
Taipei Branch Office
3F, Hung Kuo Building. No.167,
Tun-Hwa North Road, Taipei (105)
Tel: <886> (2) 2718-3666
Fax: <886> (2) 2718-8180
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
Telex: 40815 HITEC HX
Copyright ' Hitachi, Ltd., 1998. All rights reserved. Printed in Japan.
Rev.3, Jun. 1999, page 27 of 27
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