參數(shù)資料
型號: HA12141
廠商: Hitachi,Ltd.
英文描述: Dolby B- and C-Type Noise Reduction System
中文描述: 杜比B和C型降噪系統(tǒng)
文件頁數(shù): 5/63頁
文件大?。?/td> 392K
代理商: HA12141
HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Rev.3, Jun. 1999, page 5 of 63
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
Symbol
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
CC
12.0
mA
P
OFF —
No signal
Input amp gain
Gv
(IA AUX 1)
18.0
20.0
22.0
dB
AUX1 OFF 1 k
Vin = 0dB
Gv (IA PB) 18.0
20.0
22.0
dB
P
OFF 1 k
B-type NR
B-DEC-2 k –5.8
–4.3
–2.8
dB
P
B
2 k
Vout = –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
C-DEC-1 k
(1)
–7.9
–5.9
–3.9
dB
P
C
1 k
Vout = –20dB
C-DEC-1 k
(2)
–21.6
–19.6
–18.1
dB
P
C
1 k
Vout = –60dB
Signal
HA12161FP Vomax
12.0
13.0
dB
P
OFF 1 k
THD = 1%
V
CC
= 7.5V
handling
HA12162FP
12.0
13.0
dB
V
CC
= 9.5V
Signal to noise ratio
S/N (PB)
70.0
76.0
dB
P
OFF —
Rg = 10k
CCIR/ARM
Total harmonic distortion THD (OFF) —
0.03
0.15
%
P
OFF 1 k
Vin = 0dB
THD (C)
0.09
0.3
%
P
C
1 k
Vin = 0dB
NR OFF frequency
response
FR-OFF
–4.0
–1.0
+3.0
dB
P
OFF 100 k
Vin = 0dB
Crosstalk
between AUX 1
PB
CT (AUX
1
PB)
80.0
dB
P
OFF 1 k
Vin = 0dB
Crosstalk
CT (L
R) —
85.0
dB
P
OFF 1 k
Vin = 12dB
between channel
CT (R
L) —
85.0
dB
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