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參數(shù)資料
| 型號： | LMC835V |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻控制 |
| 英文描述： | LMC835 Digital Controlled Graphic Equalizer |
| 中文描述： | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大小： | 474K |
| 代理商： | LMC835V |
Electrical Characteristics
(Note 2) V
DD
e
7.5V, V
SS
eb
7.5V, D.GND
e
A.GND
e
0V
SIGNAL PATH SECTION
Tested
Limit
(Note 3)
Design
Limit
(Note 4)
Unit
(Limit)
Symbol
Parameter
Test Conditions
Typ
E
A
Gain Error
A
V
e
0 dB
@
g
12 dB Range
A
V
e
0 dB
@
g
6 dB Range
A
V
e
g
1 dB
@
g
dB Range
(R
5b
or R
5c
is ON)
A
V
e
g
2 dB
@
g
12 dB Range
(R
4b
or R
4c
is ON)
A
V
e
g
3 dB
@
g
12 dB Range
(R
3b
or R
3c
is ON)
A
V
e
g
4 dB
@
g
12 dB Range
(R
2b
or R
2c
is ON)
A
V
e
g
5 dB
@
g
12 dB Range
(R
1b
or R
1c
is ON)
A
V
e
g
9 dB
@
g
12 dB Range
(R
0b
or R
0c
is ON)
A
V
e
0 dB
@
g
12 dB Range
V
IN
e
4V
rms
, f
e
1 kHz
A
V
e
12 dB
@
g
12 dB Range
V
IN
e
1V
rms
, f
e
1 kHz
V
e
1V
rms
, f
e
20 kHz
A
V
eb
12 dB
@
g
12 dB Range
V
IN
e
4V
rms
, f
e
1 kHz
V
IN
e
4V
rms
, f
e
20 kHz
A
V
e
0 dB
@
g
12 dB Range
THD
k
1%, f
e
1 kHz
A
V
e
0 dB
@
g
12 dB Range
V
ref
e
1 V
rms
A
V
e
12 dB
g
12 dB Range
V
e
1V
rms
A
V
eb
12 dB
@
g
12 dB Range
V
ref
e
1V
rms
A
V
e
0 dB
@
g
12 dB Range
(All internal switches are OFF)
Pin 2
a
3, Pin 26
Pin 5
E
Pin 11, Pin 18
E
Pin 24
0.1
0.1
0.1
0.5
1
0.5
0.5
1
0.6
dB (Max)
dB (Max)
dB (Max)
0.1
0.5
0.6
dB (Max)
0.1
0.5
0.6
dB (Max)
0.1
0.5
0.7
dB (Max)
0.1
0.5
0.7
dB (Max)
0.2
1
1.3
dB (Max)
THD
Total Harmonic
Distortion
0.0015
%
0.01
0.1
0.1
0.5
% (Max)
% (Max)
0.01
0.1
0.1
0.5
% (Max)
% (Max)
V
O Max
Maximum Output Voltage
5.5
5.1
5
V
rms
(Min)
S/N
Signal to Noise Ratio
114
dB
106
dB
116
dB
I
LEAK
Leakage Current
500
50
nA (Max)
nA (Max)
Note 2; Boldface numbers
apply at temperature extremes. All other numbers apply at T
A
e
25
§
C, V
DD
e
7.5V, V
SS
eb
7.5V, D.GND
e
A.GND
e
0V as shown in the
test circuit, Figures 3 and 4.
Note 3:
Guaranteed and 100% production tested.
Note 4:
Guaranteed (but not 100% production tested) over the operating temperature range. These limits are not used to calculate outgoing quality levels.
Timing Diagrams
TL/H/6753–4
Note:
To change the gain of the presently selected band, it is not necessary to send DATA 1 (Band Selection) each time.
FIGURE 2
4
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