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PDF HA12141NT Data sheet ( Hoja de datos )
| Número de pieza | HA12141NT | |
| Descripción | Dolby B- and C-Type Noise Reduction System | |
| Fabricantes | Hitachi Semiconductor | |
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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 Corporation is required for the use of this IC.
1 page  
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))
Item
Symbol Min
Operating HA12161FP Vopr
7.5
voltage HA12162FP
9.5
Quiescent current
Input amp gain
ICC —
Gv 18.0
(IA AUX 1)
Gv (IA PB) 18.0
B-type NR
B-DEC-2 k –5.8
decode cut
B-DEC-5 k –4.7
C-Type NR
decode cut
C-DEC-1 k –7.9
(1)
C-DEC-1 k –21.6
(2)
Signal
HA12161FP Vomax 12.0
handling HA12162FP
12.0
Signal to noise ratio
S/N (PB) 70.0
Total harmonic distortion THD (OFF) —
THD (C) —
NR OFF frequency
response
FR-OFF –4.0
Crosstalk
between AUX 1→PB
CT (AUX —
1→PB)
Crosstalk
CT (L→R) —
between channel
CT (R→L) —
Typ
12.0
12.0
12.0
20.0
Max
16.0
16.0
—
22.0
20.0
–4.3
–3.2
–5.9
22.0
–2.8
–1.7
–3.9
–19.6 –18.1
13.0
13.0
76.0
—
—
—
0.03
0.09
–1.0
0.15
0.3
+3.0
80.0 —
85.0 —
85.0 —
Test conditions
Unit P/AUX NR f (Hz)
V — ——
V
mA P
OFF —
No signal
dB AUX1 OFF 1 k Vin = 0dB
dB P
dB P
dB P
dB P
OFF 1 k
B 2k
B 5k
C 1k
Vout = –20dB
Vout = –20dB
Vout = –20dB
dB P
C 1 k Vout = –60dB
dB P
dB
dB P
%P
%P
dB P
OFF 1 k
OFF —
THD = 1%
Rg = 10kΩ
CCIR/ARM
VCC = 7.5V
VCC = 9.5V
OFF 1 k Vin = 0dB
C 1 k Vin = 0dB
OFF 100 k Vin = 0dB
dB P
OFF 1 k Vin = 0dB
dB P
dB
OFF 1 k Vin = 12dB
Rev.3, Jun. 1999, page 5 of 63
5 Page 
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Connection Diagram (HA12134A Series, HA12141 Series)
Note: C5, C10=0.22µF with HA12134A Series
Rev.3, Jun. 1999, page 11 of 63
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HA12141NT.PDF ] | |
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