參數(shù)資料
型號: 12136AF
廠商: Hitachi,Ltd.
英文描述: Dolby B-Type Noise Reduction System
中文描述: 杜比B型降噪系統(tǒng)
文件頁數(shù): 4/27頁
文件大?。?/td> 101K
代理商: 12136AF
HA12134A, HA12135A, HA12136A
4
Electrical Characteristics
(Ta = 25
°
C, V
CC
= 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
Q
7
mA
No signal, REC NR-ON
Voltage gain of
HA12134A G
VIA
HA12135A
21.0
23.0
25.0
dB
Pin 1
Pin 6
(Pin 16
Pin 11)
input amp
24.5
26.5
28.5
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)
2.9
4.4
5.9
dB
f = 1.4 kHz
V 8 (9) (NR OFF) = –20 dB
V 8 (9) (NR OFF)
ENC-1.4
k (2)
6.0
7.5
9.0
dB
f = 1.4 kHz
V 8 (9) (NR OFF) = –30 dB
ENC-5 k
(1)
1.7
3.2
4.7
dB
f = 5 kHz
V 8 (9) (NR OFF) = –20 dB
ENC-5 k
(2)
6.7
8.2
9.7
dB
f = 5 kHz
V 8 (9) (NR OFF) = –30 dB
ENC-10 k
(1)
–1.1
0.4
1.9
dB
f = 10 kHz
V 8 (9) (NR OFF) = 0 dB
ENC-10 k
(2)
9.8
10.4
11.8
dB
f = 10 kHz
V 8 (9) (NR OFF) = –40 dB
T.H.D (REC)
T.H.D
(REC)
0.05
0.3
%
f = 1 kHz
V 8 (9) (NR ON) = 0 dB
Signal handling
HA12134A Vomax
12.0
13.0
dB
f = 1 kHz,
V
CC
= 6.5 V
V
CC
= 8.0 V
V
CC
= 9.5 V
HA12135A (REC)
T.H.D = 1%
HA12136A
Signal/noise ratio
(REC)
S/N
(REC)
62.0
68.0
dB
Rg = 5.1 k
weighted
CCIR/ARM
Crosstalk (ENC)
(Pin 8 – Pin 9)
CT R
L
L
R
52.0
60.0
dB
f = 1 kHz
NR OFF
Control voltage for
REC/PB
REC
2.5
V
CC
V
REC/PB
22 k
Measure
12
PB
0.0
0.5
Control voltage for
NR ON/OFF
ON
2.5
V
CC
V
22k
Measure
NR
ON/OFF
5
OFF
0.0
0.5
Channel balance
G
VIA
–1.0
0.0
1.0
dB
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