HA12141NT, HA12142NT, HA12170NT,
HA12161FP, HA12162FP
Dolby B- and C-Type Noise Reduction System
ADE-207-036B (Z)
3rd Edition
Jun. 1999
Description
HA12141/142NT, HA12170NT, HA12161/162FP are silicon monolithic bipolar IC series providing dual
channel Dolby B- and C-type noise reduction* in one chip.
Functions
• Dual Dolby B/C-type NR processor
• NR OFF/B/C control switch
• MPX by-pass / Encode / Decode (MPX OFF / REC / PB) control switch
• MPX Filter Drive Circuit
Features
• Low external parts count
• R-C spectrum skewing network using passive component
• External capacitors are E-3 series (small values)
• Several time constant capacitors built into the IC
• Separate REC/PB input and output. Unprocessed signal output available in the encode and decode
modes.
• Common PCB pattern is available with HA12134A series (Dolby B NR), because these ICs offer
similar pin layout.
• 3 type PB-out level (300 mV, 580 mV, 775 mV)
• 2 type package (DP-30S, FP-28D)
• Wide range of operating supply voltage (7.5 V to 16 V)
* 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.
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Ordering Information
Type No. Package Dolby Level PB-OUT Level REC-OUT Level Remark
HA12141NT DP-30S 300 m Vrms 300 m Vrms 300 m Vrms —
HA12142NT DP-30S 300 m Vrms 580 m Vrms 300 m Vrms —
HA12170NT DP-30S 300 m Vrms 775 m Vrms 300 m Vrms —
HA12161FP FP-28D 300 m Vrms 300 m Vrms — PB-mode only
HA12162FP FP-28D 300 m Vrms 580 m Vrms — ↓
Notes: 1. The common specifications are shown below.
REC-IN Level PB-IN Level IA-OUT Level (REC) IA-OUT Level (PB)
42.9 mVrms 30.0 mVrms 429 mVrms 300 mVrms
2. The values listed above show approximate values to be offered Dolby Level at TP.
Absolute Maximum Ratings (Ta = 25°C, unless otherwise specified)
Item Symbol Rating Unit Note
Supply voltage V
Power dissipation P
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –55 to +125 °C
max 16 V
CC
D
400 mW Ta ≤ 85°C
Rev.3, Jun. 1999, page 2 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Electrical Characteristics (HA12141NT, HA12142NT, HA12170NT) (Ta = 25°C,
VCC = Vopr-typ, unless otherwise specified)
(Dolby Level = 300 mVrms at TP (REC-mode: TP2, TP4 PB-mode: TP1, TP3))
Test conditions
Item Symbol Min Typ Max Unit R/P NR f (Hz)
Operating HA12141NT Vopr 7.5 12.0 16.0 V — — —
voltage HA12142NT 9.5 12.0 16.0 V
HA12170NT 12.0 14.0 16.0 V
Quiescent current I
Input amp gain Gv
B–type NR B-ENC-2 k 2.8 4.3 5.8 dB R B 2 k Vin = –20dB
Encode boost B-ENC-5 k 1.7 3.2 4.7 dB R B 5 k Vi n = –20dB
C–Type NR C-ENC-1 k
Encode boost C-ENC-1 k
Signal HA12141NT Vom ax 12.0 13.0 — dB R OFF 1 k THD = 1% VCC = 7.5V
handling HA12142NT 12.0 13.0 — dB VCC = 9.5V
HA12170NT 12.0 13.0 — dB VCC = 12V
CC
(IA REC)
Gv (IA PB) 18.0 20.0 22.0 dB P OFF 1 k
(1)
(2)
C-ENC-
700
— 12.0 — mA R OFF — No signal
18.0 20.0 22.0 dB R OFF 1 k Vin = 0dB
3.9 5.9 7.9 dB R C 1 k Vin = –20dB
18.1 19.6 21.6 dB R C 1 k Vin = –60dB
9.8 11.8 13.8 dB R C 700 Vin = –30dB
Rev.3, Jun. 1999, page 3 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Electrical Characteristics (Ta = 25°C, VCC = Vopr-typ, unless otherwise specified)
(Dolby Level = 300 mVrms at TP (REC-mode: TP2, TP4 PB-mode: TP1, TP3)) (cont)
Test conditions
Item Symbol Min Typ Max Unit R/P NR f (Hz)
Signal to noise ratio S/N (REC) 60.0 64.0 — dB R C — Rg = 5.1kΩ
CCIR/ARM
Total harmonic distortion THD (OFF) — 0.03 0.15 % R OFF 1 k Vin = 0dB
THD (C) — 0.09 0.3 % R C 1 k Vin = 0dB
NR OFF frequency
response
Crosstalk between CT (R→ P) — 80.0 — dB P OFF 1 k Vin = 0dB
REC-PB CT (P→ R) — 80.0 — dB R OFF 1 k
Crosstalk between CT (L→ R) — 85.0 — dB R OFF 1 k Vin = 0dB
channel CT (R→L) — 85.0 — dB
Control voltage for MPX
OFF/REC/PB
Control voltage for NR
C/B OFF
PB-OUT HA12141NT Vout 250 300 350 mVrms R OFF 1 k Vin = 0dB
level HA12142NT 490 580 670 mVrms
HA12170NT 646 775 904 mVrms
REC-OUT offset Voffset –70 0.0 70 mV R OFF→C—VCC = 16V
Channel balance ∆ Gv –1.0 0.0 1. 0 DB R OFF 1 k Vin = 0dB
FR-OFF –3.0 0.0 +3.0 dB P OFF 100 k Vin = 0dB
Vcont
VCC–1 — V
CC
V
(MPX)
Vcont
(REC)
2.5 —
CC
2
V
+
0.5
V
Vcont (PB) 0.0 — 0.4 V
Vcont (C)
Vcont (B)
Vcont
(OFF)
V
2
CC
2
0.0 —
+
3
–0.5
—V
—
CC
CC
2
CC
2
+
–3
0.5
V
V
V
CC
No signal
Rev.3, Jun. 1999, page 4 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Electrical Characteristics (HA12161FP, HA12162FP) (Ta = 25°C, V CC = 12 V, Unless
otherwise specified)
(Dolby Level = 300 mVrms at TP (PB-mode: TP1, TP3))
Test conditions
Item Sym bol Min Typ Max Unit P/AUX NR f (Hz)
Operating HA12161FP Vopr 7.5 12.0 16.0 V — — —
voltage HA12162FP 9.5 12.0 16.0 V
Quiescent current I
Input amp gain Gv
B-type NR B-DEC-2 k –5.8 –4.3 –2.8 dB P B 2 k V out = –20dB
decode cut B-DEC-5 k –4.7 –3.2 –1.7 dB P B 5 k Vout = –20dB
C-Type NR
decode cut
Signal HA12161FP Vomax 12.0 13.0 — dB P OFF 1 k THD = 1% VCC = 7.5V
handling HA12162FP 12.0 13.0 — dB VCC = 9.5V
Signal to noise ratio S/N (PB) 70.0 76.0 — dB P OFF — Rg = 10kΩ
Total harmonic distortion THD (OFF) — 0.03 0.15 % P OFF 1 k Vin = 0dB
NR OFF frequency
response
Crosstalk
between AUX 1→PB
Crosstalk CT (L→ R) — 85.0 — dB P OFF 1 k Vin = 12dB
between channel CT (R→ L) — 85.0 — dB
CC
(IA AUX 1)
Gv (IA PB) 18.0 20.0 22.0 dB P OFF 1 k
C-DEC-1 k
(1)
C-DEC-1 k
(2)
THD (C) — 0.09 0.3 % P C 1 k V i n = 0dB
FR-OFF –4.0 –1.0 +3.0 dB P OFF 100 k V i n = 0dB
CT (AUX
1→ PB)
— 12.0 — mA P OFF — No signal
18.0 20.0 22.0 dB AUX1 OFF 1 k Vin = 0dB
–7.9 –5.9 –3.9 dB P C 1 k Vout = –20dB
–21.6 –19.6 –18.1 dB P C 1 k Vout = –60dB
CCIR/ARM
— 80.0 — dB P OFF 1 k Vin = 0dB
Rev.3, Jun. 1999, page 5 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Electrical Characteristics (HA12161FP, HA12162FP) (Ta = 25°C, VCC = 12 V, Unless
otherwise specified)
(Dolby Level = 300 mVrms at TP (PB-mode: TP1, TP3)) (cont)
Test conditions
Item Sym bol Min Typ Max Unit P/AUX NR f (Hz)
Control voltage for
AUX 2/AUX 1/PB
Control voltage for
NR C/B OFF
Vcont
(AUX 2)
Vcont
(AUX 1)
Vcont (PB) 0.0 — 0.4 V
Vcont (C)
VCC–1 — V
2.5 —
V
CC
2
—VCCV
3
+
CC
V
CC
0.5
+
2
V
V
24
22k
5
22k
Measure A2/ A1/ P
V
Measure C/ B/ OFF
V
V
Vcont (B)
Vcont
(OFF)
PB-OUT HA12161FP Vout 250 300 350 mV rms P OFF 1 k V i n = 0dB
level HA12162FP 490 580 670 mVrms
PB-out offset Voffset –100 0.0 +100 mV P OFF→C— No signal
Channel balance ∆ Gv –1.0 0.0 1.0 dB P OFF 1 k Vin = 0dB
CC
2
0.0 —
0.5
—
V
CC
2
CC
2
+
–3
0.5
V
V
Rev.3, Jun. 1999, page 6 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Block Diagram (HA12141NT, HA12142NT, HA12170NT)
REC A REC A
REC
LLS
HLS
CCA SS2 SS1 PB
OUT
DET
DET
16
C
10
C
17
C
17
R
µ
0.1
±10%
µ
0.1
±10%
2000 p
±5%
560
±2%
AS LLS
HLS
AS LLS
HLS
15
C
5
C
14
C
µ
0.1
±10%
µ
0.1
±10%
2200 p
±5%
19
R
560
±2%
REC
OUT
LLS
DET
DET
Ω
C: F
Unit; R:
VREF NR
IA OUT M/R/P BIAS PB
OUT
IN
IN
19
C
2200 p
±5%
16
R
22 k
±2%
18
C
2200 p
±5%
14
R
5.6 k
MPX MPX
15
R
2.4 k
8
R
22 k
9
R
18 k
±2%
SS
MA
SW
IA
SS
MA
SW
IA
21
C
2200 p
±5%
SS1 SS2 CCR HLS
18
R
22 k
±2%
OUT
20
C
2200 p
±5%
13
R
5.6 k
13
12
C
R
2.4 k
+
3
R
22 k
+
4
µ
C
1
VREF PB
IN
NR
µ
22
OUT
REF C/B/OFF IA
IN
GND REC
IN
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
1234567891 01 11 21 31 41 5
VCC PB
Resistor tolerance are ±10% unless otherwise specified.
Capacitor tolerance are ±20% unless otherwise specified
except for coupling capacitors.
2.
IN
REC
Note; 1.
Rev.3, Jun. 1999, page 7 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Block Diagram (HA12161FP, HA12162FP)
16
C
0.1µ
RB
SS2
SS1
OUT
REF
V
LLS
HLS
CCR
DET
DET
C192200p
±5%
18
C
2200p
±5%
10
0.1µ
C
17
2200p
C
17
R
560
R1622k
±10%
±10%
±5%
±2%
±2%
15
AS LLS H LS SS
AS LLS H LS SS
16 17 18 19 20 21 22 23 24 25 26 27 28
C150.1µ
5
C
0.1µ
14
2200p
C
19
560
R
18
22k
±2%
R
91 01 11 21 31 4
±10%
±10%
±5%
±2%
21
C
20
C
2200p
±5%
2200p
±5%
LLS
HLS
CCR
REF
V
DET
DET
SS2 SS1
RB
OUT
NR
IN
IA
OUT
AUX1/
AUX2/P
BIAS PB
R822k
9
R
18k
SW MA IA
±2%
SW MA IA
IN
GND AUX
IN
Notes: 1. Resistor tolerances are ±10% unless otherwise specified.
2. Capacitor tolerances are ±20% unless otherwise specified except for coupling capacitors.
13
C
+ +
3
22k
R
4
C
1234 567 8
22µ
1µ
Unit
NR
IA
C/B/OFF REF PB
CC
V
AUX
R: Ω
C: F
IN
OUT
IN
IN
Rev.3, Jun. 1999, page 8 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Test Circuit (HA12141NT, HA12142NT, HA12170NT)
Distortion
Analyzer
HP 339A or
Equivalent
Oscilloscope
TEKTRO 475 or
AC Volt Meter
HP 400E or
Equivalent
Equivalent
Noise Meter
with CCIR/
ARM Filter
M/R/P
MPX
C11
SW7
+
PB
REC
OFF
+
µ
0.47
P
R7
10k
µ
C9
2.2
TP4
R8
SW8
To Vcc
R10
P
SW9
R
22k
10k
C12
+
TP3
µ
0.47
C19
C18
+
R
R6
C8
R17
2200p
2200p
R14
10k
µ
2.2
R9
R11
C16
C10
C17
560
R16
5.6k
R15
µ
0.1
µ
0.1
2200p
22k
2.4k
18k
5.1k
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
SW6
(Dolby B-C NR)
HA12141/42/70
SW2
L
R
ON OFF
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
R18
R12
C4
C10
C7
C15
C5
C14
R19
22k
R13
2.4k
+
µ
1
100
+
µ
0.47
µ
0.1
µ
0.1
2200p
560
C21
C20
5.6k
+
+
µ
µ
2.2
+
2200p
R1
R
R
2200p
TP1
R3
µ
C13
C3
5.1k
R5
22
10k
TP2
22k
C
+
P
SW3
SW5
P
+
OFF
OFF ON
C2
R4
µ
C6
2.2
B
C/B/OFF
µ
0.47
R2
10k
10k
Ω
Resistor tolerances are ±1%
Capacitor tolerances are ±1%
Unit R: C:F
2.
3.
Note: 1.
SW4
SW10
DC Power
Source
SW1
Audio SG
HP 339A or
Equivalent
Rev.3, Jun. 1999, page 9 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Test Circuit (HA12161FP, HA12162FP)
AS VOLT
METER
HP 400E or
EQUIVALENT
DISTORTION
ANALYZER
HP 339A or
EQUIVALENT
OSCILLOSCOPE
TEKTRO 475 or
EQUIVALENT
NOISE METER
WITH CCIR/
ARM FILTER
SW6
L
7
10k
R
16
0.1
2.2
17
C
2200p
17
R
19
C
2200p
C
10
C
560
16
R
15
0.1
22k
9
+
C
R
R410k
15
0.1
C
5
C
0.1
+
C62.2
C142200p
19
560
R
C212200p
18
R
22k
18
2200p
C
TP3
AUX2 AUX1 PB
0.47
8
R
22k
CC
To V
9
R
18k
+
10
R
10k
12
0.47
C
P
27 26 25 24 23 22 21 20 19 18 17 16
28
+
11
5.1k
R
A
SW8
A2/A1/P
11
C
SW9
Notes: 1. Resistor tolerances are –1%
2. Capacitor tolerances are –1%
3. Unit R: Ω , C: F
HA12161/2
(Dolby B-C NR)
SW2
L
R
ON
SW1
OFF
AUDIO SG
HP339A or
EQUIVALENT
20
C
2200p
TP1
3
R
+
13
C
+
4
1
C
3
C
100
1 2 3 4 5 6 7 8 9 1 01 11 21 31 4
1
++
R
1
C
0.47
A
22
22k
5.1k
P
SW3
+
OFF
C
2
R
2
C
B
0.47
10k
SW4
C/B/OFF
ON
SW10
OFF
DC POWER
SOURCE
Rev.3, Jun. 1999, page 10 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Connection Diagram (HA12134A Series, HA12141 Series)
PB OUT
R
+
REC
M/R/P
MPX
C110.47µ
PB IN
(L)
7
10k
C92.2µ
PB
OFF
+
(L)
10
R
12
C
8
C
TP4
CC
To V
10k
0.47µ
REC OUT
2.2µ
C192200p
18
2200p
C
MPX
TP3
R822k
+
(L)
6
R
10k
C160.1µ
10
0.1µ
C
C172200p
17
R
560
16
R
22k
14
R
5.6k
15
R
2.4k
9
R
18k
11
R
5.1k
(R)
REC OUT
5
10k
R
+
16
7
15 14
2.2µ
C
15
C
0.1µ
17 18 19 20
C50.1µ
HA12141/42/70
(Dolby B-C NR)
21 22 23
13 12 11 10 9 8 7 6 5 4 3 2 1
14
2200p
C
19
560
R
21
C
2200p
18
22k
R
(R)
PB OUT
4
10k
R
6
+
C
2.2µ
C202200p
TP2
13
5.6k
R
24
12
R
2.4k
25 26 27 28 29
HA12134A/5A/6A (Dolby B NR)
16 15 14 13 12 11 10 9
12345678
30
MPX
+
B
2
C
2
R
(R)
PB IN
SW4
C/B/OFF
0.47µ
10k
CC
V
TP1
OFF
3
22k
R
+
13
22µ
C
+
4
1µ
C
+
3
C
100µ
+
1
R15.1k
C
0.47µ
(L)
REC IN
Note: C5, C10=0.22µF with HA12134A Series
(R)
REC IN
Rev.3, Jun. 1999, page 11 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Pin Description (V CC = 12 V, Ta = 25°C, no signal, the value in the table show typical
value.)
Pin No. Terminal DC
DP SOP Name Zin Voltage Equivalent circuit Description
1 1 REC IN 75 kΩ V CC/2
V /2
75 k
Ω
30 28
3 3 PB IN Playback input
28 26
22 VCC—VCC— Power supply
44 R E F — VCC/2 — Ripple filter
55 C / B / O F F— VCC/2 Mode control pin for NR
– 0.7V
Ω
20 k
Ω
100 k
7 7 NR IN — VCC/2 NR processor input
24 22
CC
V /2 – 0.7
CC
GND
Recording input
“H”→C
“M”→B
“L”→ NR OFF
10 10 SS 1 — VCC/2 Spectral skewing amp input
21 19
Rev.3, Jun. 1999, page 12 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Pin Description (V CC = 12 V, Ta = 25°C, no signal, the value in the table show typical
value.) (cont)
Pin No. Terminal DC
DP SOP Name Zin Voltage Equivalent circuit Description
12 12 CCR — VCC/2 Current controlled resistor
19 17 output
6 6 IA OUT — VCC/2 Input amp. output
25 23
V
CC
GND
8 8 VREF Reference voltage output
23 21
9 9 PB OUT Playback (Decode) output
22 20
11 11 SS 2 Spectral skewing amp.
20 18 output
15 — REC Recording (Encode) output
16 — OUT
Rev.3, Jun. 1999, page 13 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Pin Description (V CC = 12 V, Ta = 25°C, no signal, the value in the table show typical
value.) (cont)
Pin No. Terminal DC
DP SOP Name Zin Voltage Equivalent circuit Description
13 13 HLS DET — 2.1 V Time constant pin for
18 16 rectifier
14 14 LLS DET
17 15
26 24 M/R/P — 2.1 V Mode control pin for REC/PB
“H”→ REC
MPX OFF
“M”→ REC
MPX ON
27 25 BIAS — 0.24 V
100 k
2.1 V
Ω
“L”→ PB
GND
Reference current input
GND
29 27 GND — 0.0 V — Ground
Rev.3, Jun. 1999, page 14 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
16
14
12
Q
I (mA)
10
8
6
7 8 9 1 01 11 21 31 41 51 6
V (V)
CC
Quiescent Circuit vs. Supply Voltage
REC-OFF
REC-B
REC-C
PB-OFF
PB-B
PB-C
16
26
14
12
10
8
6
Control Voltage [V]
4
2
0
22 k
468 1 21 41 61 8
Measure
V
MPX OFF
REC
PB
10
V [V]
CC
Control Voltage vs. Supply Voltage ( PB/REC/MPX)
Rev.3, Jun. 1999, page 15 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
16
Measure
V
14
12
5
22 k
Control Voltage (V)
Control Voltage vs. Supply voltage (NR-OFF/B/C)
HA12141NT
12
10
8
10
8
6
4
2
0
4681 01 21 41 61 8
V (V)
7 V
NR–C
NR–B
NR–OFF
CC
Vin = –0 dB
Vin = –10 dB
Vin = –20 dB
Vin = –30 dB
Vin = –40 dB
6
4
Encode Boost (dB)
2
0
100 200 500 1 k 2 k 5 k 10 k 20 k
Encode Boost vs. Frequency (NR-B VCC = 7V, 12 V, 16 V)
Rev.3, Jun. 1999, page 16 of 63
12 V, 16 V
Frequency (Hz)
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
HA12141NT
25
20
7 V
15
12 V, 16 V
10
5
Encode Boost (dB)
0
–5
–10
100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
Vin = –0 dB
Vin = –20 dB
Vin = –30 dB
Vin = –40 dB
Vin = –60 dB
Encode Boost vs. Frequency (NR-C VCC = 7 V, 12 V, 16 V)
HA12141NT, HA12161FP
0
–2
–4
–6
–8
Decode Cut (dB)
–10
–12
100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
Vout = –0 dB
Vout = –10 dB
Vout = –20 dB
Vout = –30 dB
Vout = –40 dB
12 V, 16 V
7 V
Decode Cut vs. Frequency (NR-B VCC = 7 V, 12 V, 16 V)
Rev.3, Jun. 1999, page 17 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
HA12141NT, HA12161FP
10
5
0
-5
–10
Decode Cut (dB)
–15
12 V, 16 V
7 V
–20
–25
100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
Vout = –0 dB
Vout = –20 dB
Vout = –30 dB
Vout = –40 dB
Vout = –60 dB
HA12141NT
20
16
12
8
Total Gain (dB)
4
0
10 100 1 k 10 k 100 k
Decode Cut vs Frequency (NR-C VCC = 7 V, 12 V, 16 V)
V = 12 V
Frequency (Hz)
CC
Total Gain vs. Frequency (REC MODE RECOUT NR-OFF)
Rev.3, Jun. 1999, page 18 of 63
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
HA12141NT, HA12161FP
20
18
16
OFF/B/C
14
Total Gain (dB)
12
10
10 100 1 k 10 k 100 k
HA12141NT
24
22
20
18
Total Gain (dB)
Frequency (Hz)
Total Gain vs. Frequency (REC MODE PBOUT)
V = 12 V
CC
OFF/B/C
16
14
10 100 1 k 10 k 100 k
Frequency (Hz)
Total Gain vs. Frequency (PB MODE RECOUT)
V = 12 V
CC
Rev.3, Jun. 1999, page 19 of 63