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參數(shù)資料
| 型號： | HA12179F |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp) |
| 中文描述： | 音頻信號加工者為汽車甲板和卡座（杜比B型鉛放大器星期日） |
| 文件頁數(shù)： | 8/40頁 |
| 文件大小： | 259K |
| 代理商： | HA12179F |
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HA12179F
Rev.1, Apr. 1994, page 8 of 40
Electrical Characteristics
(Ta = 25 °C Dolby Level 300 mVrms, V
CC
= 9.0 V)
Item
Symbol
Min
Typ
Max
Unit
Test conditions
Remark
Quiescent current
I
Q
6.5
12.0
17.5
mA
PB mode, NR-ON, 70μ,
MUTE-OFF No signal
Input amp. gain
GvIA TAI
21.2
22.2
23.2
dB
Vin = 0 dB, f = 1 kHz
B-type encode
ENC-2 k (1)
2.8
4.3
5.8
dB
Vin = -20 dB, f = 2 kHz
boost
ENC-2 k (2)
7.0
8.5
10.0
Vin = -30 dB, f = 2 kHz
ENC-5 k (1)
1.7
3.2
4.7
Vin = -20 dB, f = 5 kHz
ENC-5 k (2)
6.7
8.2
9.7
Vin = -30 dB, f = 5 kHz
Signal handling
V
O
max
12.0
13.0
—
dB
THD = 1%, f = 1 kHz
Rg = 5.1 k
, CCIR/ARM
Vin = 0 dB, f = 1 kHz
*1
Signal to noise ratio S/N
64.0
70.0
—
dB
THD
THD
—
0.05
0.3
%
Channel
CT RL (1)
65.0
80.0
—
dB
Vin = 0 dB, f = 1 kHz
TAI IN
separation
CT RL (2)
50.0
60.0
—
Vin = 0.6 mVrms, f = 1 kHz
EQ IN
Mute attenuation
MUTE ATT
70.0
85.0
—
Vin = 0 dB, f = 1 kHz
TAI IN
PB-EQ gain
Gv EQ 1 k
37.0
40.0
43.0
dB
Vin = 0.6 mVrms, f = 1 kHz
120 μ
Gv EQ 10 k (1) 33.0
36.0
39.0
Vin = 0.6 mVrms, f = 10 kHz
Gv EQ 10 k (2) 29.0
32.0
35.0
70 μ
PB-EQ maximum
output
VoM
300
600
—
mVrms THD = 1%, f = 1 kHz
*1
PB-EQ THD
THD-EQ
—
0.05
0.3
%
Vin = 0.6 mVrms, f = 1 kHz
Rg = 680
DIN-AUDIO
Noise voltage level
converted in input
V
N
—
0.7
1.5
μVrms
MS sensing level
V
ON
(1)
V
ON
(2)
–36.0 –32.0 –28.0 dB
f = 5 kHz, Normal speed
–18.0 –14.0 –10.0
f = 5 kHz, High speed
MS output low level V
OL
MS output leak
current
—
1.0
1.5
V
I
OH
—
0.0
2.0
μA
Control voltage
V
IL
V
IH
–0.2
—
1.0
V
3.5
—
5.3
Note:
1
V
CC
= 6.8 V
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