HIT HA12136AF, HA12136A, HA12135AF, HA12135A, HA12134AF Datasheet
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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 Corporation is required for the use of this IC.
HA12134A, HA12135A, HA12136A
Ordering Information
Type No |
Dolby Level (mVrms) |
Package |
HA12134A |
300 |
DP-16 |
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HA12134AF |
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FP-16DA |
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HA12135A |
450 |
DP-16 |
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HA12135AF |
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FP-16DA |
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HA12136A |
580 |
DP-16 |
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HA12136AF |
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FP-16DA |
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Block Diagram
REC IN |
GND |
PB IN |
BIAS |
REC/PB |
PB OUT |
DET |
REC OUT |
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18 k |
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0.22 µ |
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22 k |
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16 |
15 |
14 |
13 |
12 |
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11 |
10 |
9 |
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SW |
BUF |
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SIDE |
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AMP |
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CHAIN |
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BIAS |
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SW |
BUF |
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SIDE |
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AMP |
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CHAIN |
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1 |
2 |
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6 |
7 |
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+ |
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22 k |
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0.22 µ |
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1 µ |
22 µ |
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REC IN |
V CC |
PB IN |
V REF NR |
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PB OUT |
DET |
REC OUT |
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ON/OFF |
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Rev.3, Jun. 1999, page 2 of 27
HA12134A, HA12135A, HA12136A
Absolute Maximum Ratings (Ta = 25°C, Unless otherwise specified.)
Item |
Symbol |
Rating |
Unit |
Note |
Supply voltage |
Vccmax |
16 |
V |
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Power dissipation |
Pd |
250 |
mW |
Ta ≤ 85°C |
Operating temperature |
Topr |
–40 to +85 |
°C |
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Storage temperature |
Tstg |
–55 to +125 |
°C |
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Lead temperature |
TI |
260 |
°C |
Note 1 |
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Note: 1. Soldering 10 sec. |
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Rev.3, Jun. 1999, page 3 of 27
HA12134A, HA12135A, HA12136A
Electrical Characteristics (Ta = 25°C, VCC = 12 V, Unless otherwise specified.)
Item |
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Symbol |
Min |
Typ |
Max |
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Unit |
Test conditions |
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Operating voltage |
HA12134A |
Vope |
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6.5 |
12.0 |
16.0 |
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V |
Enable functional operations |
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HA12135A |
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8.0 |
12.0 |
16.0 |
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HA12136A |
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9.5 |
12.0 |
16.0 |
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Quiescent current |
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IQ |
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— |
7 |
— |
mA |
No signal, REC NR-ON |
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Voltage gain of |
HA12134A |
GVIA |
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21.0 |
23.0 |
25.0 |
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dB |
Pin 1→ Pin 6 |
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input amp |
HA12135A |
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24.5 |
26.5 |
28.5 |
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(Pin 16→ |
Pin 11) |
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HA12136A |
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26.5 |
28.5 |
30.5 |
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Vout = 0 dB, f = 1 kHz |
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NR encode boost |
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ENC-1.4 |
2.9 |
4.4 |
5.9 |
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dB |
f = 1.4 kHz |
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V 8 (9) (NR ON) |
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k (1) |
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V 8 (9) (NR OFF) = –20 dB |
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V 8 (9) (NR OFF) |
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ENC-1.4 |
6.0 |
7.5 |
9.0 |
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dB |
f = 1.4 kHz |
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k (2) |
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V 8 (9) (NR OFF) = –30 dB |
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ENC-5 k |
1.7 |
3.2 |
4.7 |
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dB |
f = 5 kHz |
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(1) |
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V 8 (9) (NR OFF) = –20 dB |
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ENC-5 k |
6.7 |
8.2 |
9.7 |
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dB |
f = 5 kHz |
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(2) |
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V 8 (9) (NR OFF) = –30 dB |
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ENC-10 |
–1.1 |
0.4 |
1.9 |
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dB |
f = 10 kHz |
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k (1) |
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V 8 (9) (NR OFF) = 0 dB |
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ENC-10 |
9.8 |
10.4 |
11.8 |
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dB |
f = 10 kHz |
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k (2) |
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V 8 (9) (NR OFF) = –40 dB |
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T.H.D (REC) |
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T.H.D |
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— |
0.05 |
0.3 |
% |
f = 1 kHz |
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(REC) |
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V 8 (9) (NR ON) = 0 dB |
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Signal handling |
HA12134A |
Vomax |
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12.0 |
13.0 |
— |
dB |
f = 1 kHz, |
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V CC = 6.5 V |
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HA12135A |
(REC) |
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T.H.D = 1% |
VCC = 8.0 V |
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HA12136A |
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VCC = 9.5 V |
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Signal/noise ratio |
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S/N |
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62.0 |
68.0 |
— |
dB |
Rg = 5.1 k Ω |
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(REC) |
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(REC) |
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weighted |
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CCIR/ARM |
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Crosstalk (ENC) |
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CT R→ |
L |
52.0 |
60.0 |
— |
dB |
f = 1 kHz |
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(Pin 8 – Pin 9) |
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L→ |
R |
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NR OFF |
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Control voltage for |
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REC |
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2.5 |
— |
V CC |
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V |
REC/PB |
22 k |
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REC/PB |
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12 |
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PB |
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0.0 |
— |
0.5 |
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Control voltage for |
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ON |
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2.5 |
— |
V CC |
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V |
NR |
Measure |
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NR ON/OFF |
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ON/OFF |
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5 |
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22k |
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OFF |
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0.0 |
— |
0.5 |
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Channel balance |
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∆ GVIA |
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–1.0 |
0.0 |
1.0 |
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dB |
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Rev.3, Jun. 1999, page 4 of 27
HA12134A, HA12135A, HA12136A
Electrical Characteristics (Ta = 25°C, VCC = 12 V, Unless otherwise specified.) (cont)
Item |
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Symbol |
Min |
Typ |
Max |
Unit |
Test conditions |
Offset voltage |
∆ Vorec |
–50 |
0.0 |
50 |
mV |
REC mode |
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V 8 (9) |
(NR-ON) – |
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VCC = 16.0 V |
V 8 (9) |
(NR-OFF) |
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Test Circuit
SW1
OFF 
ON
AUDIO SG HP339A or EQUIVALENT
R10 |
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To Vcc |
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R7 |
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10k |
C11 |
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SW8 |
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C9+ |
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10k |
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P |
+ |
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REC |
PB |
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SW9 |
0.68µ |
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10µ |
SW7 |
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R9 |
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R8 |
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C10 |
P |
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C12 |
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C8 |
R |
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R |
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18k |
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22k |
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0.22µ |
+ |
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+ |
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R11 |
1µ |
16 |
15 |
14 |
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12 |
11 |
10 |
9 |
10µ |
R6 |
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5.1k |
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REC |
GND |
PB IN |
BIAS |
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REC/ |
PB |
DET |
REC |
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10k |
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IN |
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PB |
OUT |
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OUT |
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L |
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SW6 |
SW2 |
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R |
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REC |
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NR |
PB |
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REC |
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R1 |
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IN |
Vcc |
PB IN |
VREF |
ON/OFF OUT |
DET |
OUT |
C7 |
R5 |
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C1 |
1 |
2 |
3 |
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C13 5 |
6 |
7 |
8 |
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5.1k |
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C3 |
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C5 |
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R |
1µ |
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+ 100µ C4 |
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R3 |
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0.22µ |
10µ |
R |
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1µ |
22µ |
22k |
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SW3 P |
C2 |
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C6 P SW5 |
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+ |
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ON |
OFF |
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R2 |
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10µ |
R4 |
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0.68µ |
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10k |
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10k |
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OFF |
ON |
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SW4 |
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SW10 |
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AC VOLT
METER HP 400E or
EQUIVALENT
DISTORTION ANALYZER
HP339A or EQUIVALENT
OSCILLOSCOPE TEKTRO 475 or EQUIVALENT
NOISE METER WITH CCIR/ ARM FILTER
DC POWER SOURCE
Notes: 1. |
Resistor tolerances are ±1% |
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2. |
Capacitor tolerances are ±1% |
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3. |
Unit R: Ω |
C: F |
Rev.3, Jun. 1999, page 5 of 27
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 |
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Description |
1, 16 |
REC IN |
56 kΩ |
6.0 V |
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VCC |
Recording (encode) input |
56k
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VCC /2 |
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GND |
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2 |
VCC |
— |
12.0 V |
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Power supply |
3, 14 |
PB IN |
100 kΩ |
6.0 V |
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VCC |
Playback (decode) input |
100k
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VCC /2 |
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GND |
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4 |
VREF |
— |
6.0 V |
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Reference voltage |
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5 |
NR ON/OFF |
— |
— |
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VCC |
Mode control pin for NR |
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ON/OFF |
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“H”→ |
NR ON |
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1k |
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3 VBE |
“L”→ |
NR OFF |
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4 VBE |
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100k |
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GND
6, 11 PB OUT |
— |
6.0 V |
VCC |
Playback (decode) output |
100
100
GND
Rev.3, Jun. 1999, page 6 of 27
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 |
|
|
|
VCC |
Time constant pin for the |
|
|
|
|
|
|
|
|
level detector |
|
|
|
|
GND |
|
|
8, 9 |
REC OUT |
— |
6.0 V |
VCC |
Recording (encode) |
|
|
|
|
|
|
output |
|
|
|
|
|
100 |
|
|
|
|
|
|
100 |
|
|
|
|
|
|
GND |
|
|
12 |
REC/PB |
— |
— |
VCC |
Mode control pin for |
|
|
|
|
|
|
REC/PB (encode/decode) |
|
|
|
|
|
|
“H”→ |
REC (encode) |
|
|
|
|
1k |
“L”→ |
PB (decode) |
|
|
|
|
|
|
|
|
|
|
|
3 VBE |
|
|
|
|
|
|
4 VBE |
|
|
|
|
|
|
100k |
|
|
|
|
|
|
GND |
|
|
13 |
BIAS |
— |
1.0 V |
VCC |
Reference current input |
|
|
|
|
|
|
pin for the active filters |
|
GND
15 |
GND |
— |
0 V |
— |
Ground |
|
|
|
|
|
|
Rev.3, Jun. 1999, page 7 of 27
HA12134A, HA12135A, HA12136A
Quiescent current IQ [mA]
10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
No Signal |
|
HA12134A/5A/6A |
|
||||||
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
-ON |
|||||||
|
|
|
|
|
|||||||
|
|
|
|
|
NR |
||||||
|
|
|
|
|
-OFF |
||||||
6 |
|
|
|
|
NR |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
4
2
0
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
|
|
Supply voltage Vcc [V] |
|
|
|||
Figure 1 Quiescent Current vs. Supply Voltage
Control voltage (REC/PB) [V]
3.0 
HA12134A/5A/6A
2.5
2.0 |
|
REC |
Mode |
|
|||
|
|
||
|
|
|
1.5
1.0
PB Mode
0.5
0
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
Supply voltage Vcc [V]
Figure 2 REC/PB Control Voltage vs. Supply Voltage
Rev.3, Jun. 1999, page 8 of 27
HA12134A, HA12135A, HA12136A
Control voltage (NR-ON/OFF) [V]
3.0 
HA12134A/5A/6A
2.5
2.0
NR-ON
1.5
1.0
NR-OFF
0.5
0
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
Supply voltage Vcc [V]
Figure 3 NR-ON/OFF Control Voltage vs. Supply Voltage
|
12 |
|
|
|
|
|
16 V |
|
|
|
HA12136A |
|
12 V |
|
|
|
|||
|
10 |
|
|
|
|
|
–40 dB |
|
|
|
|
|
|
|
|
|
9.5 V |
|
|
[dB] |
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
–30 dB |
|
|
|
boost |
|
|
|
|
|
|
|
|
|
6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Encode |
4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
–20 dB |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
–10 dB |
|
|
|
0 |
|
|
|
|
|
0 dB |
|
|
|
|
|
|
|
|
|
|
|
|
|
100 |
200 |
500 |
1 k |
2 k |
5 k |
10 k 20 k |
50 k |
100 k |
|
|
|
|
Frequency [Hz] |
|
|
|
||
Figure 4 Encode Boost vs. Frequency
Rev.3, Jun. 1999, page 9 of 27
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