AN7337N [PANASONIC]
7-Element Graphic Equalizer IC for Hi-Fi; 7元素图形均衡器IC，适用于音响
| 型号： | AN7337N |
| 厂家： | 
PANASONIC |
| 描述： | 7-Element Graphic Equalizer IC for Hi-Fi |
| 文件： | 总4页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7337N
7-Element Graphic Equalizer IC for Hi-Fi
■ Overview
Unit : mm
The AN7337N is a graphic equalizer IC for high perfor-
mance Hi-Fi developed for deck. It incorporates output
buffer circuit and 7 resonance buffer circuits, can set res-
onance frequency by external capacitor.
1
2
20
19
18
17
16
15
14
13
12
11
3
4
5
■ Features
6
7
•
•
•
Low noise : Vno = 4µVrms typ.
8
Low distortion : THD = 0.002% typ. (at VO = 1Vrms)
High output power : VO (max.) = 9.5Vrms typ. (at. THD =
0.1%)
9
10
0.6±0.25
6.35±0.3
•
Wide operating supply voltage range : VCC (opr.) = ±4 ~
±18V
3.85±0.25 3.0±0.25
3 ~15˚
7.62±0.25
20-Lead DIP Package (DIP020-P-0300A)
■ Block Diagram
–VCC
20
GND
19
+VCC
18
17
16
15
14
13
12
11
–
–
–
+
+
+
Output Buffer
Resonance
Section7
Resonance
Section6
Resonance
Section1
Resonance
Section2
Resonance
Section3
Resonance
Section4
Resonance
Section5
+
–
+
–
+
+
+
–
–
–
1
2
3
4
5
6
7
8
9
10
ICs for Audio Common Use
AN7337N
■ Absolute Maximum Ratings (Ta= 25˚C)
Parameter
Symbol
Rating
Unit
V
Supply Voltage
Supply Current
VCC
ICC
±18
±50
mA
mW
˚C
Power Dissipation
PD
1,000
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
–20 ~ + 75
–55 ~ +150
˚C
■ Recommended Operating Range (Ta = 25˚C)
Parameter
Symbol
VCC
Range
Operating Supply Voltage Range
±4V ~ ±18V
■ Electrical Characteristics (VCC = ±15V, Ta = 25˚C)
Parameter
Total Circuit Current
Symbol
ICC
Condition
min.
8
typ.
12
max.
16
Unit
Vin= 0mV
mA
dB
Voltage Gain FLAT
Voltage Gain BOOST
GV (FLAT)
f= 1kHz, Vin= –10dBm
– 0.6
– 0.3
12
0
FLAT VO = 0dB,
Vin= –10dBm
GV (Boost)
GV (CUT)
10.4
–14
14
dB
dB
FLAT VO = 0dB,
Vin= –10dBm
–12
–10.4
0.03
Voltage Gain CUT
THD
VO (max.)
Vno
f= 1kHz, VO = 1Vrms
f= 1kHz, THD= 0.1%
Input Short, DIN/AUDIO
Input Short, ALL Boost
0.002
9.5
4
%
Total Harmonic Distortion
Max. Output Voltage
Output Noise Voltage
Output Noise Voltage
8
Vrms
35 µVrms
Vno (max.)
31
100 µVrms
■ Characteristics Curve
THD – VCC
Vno – VCC
THD – VO
0.1
10
8
VCC –Vno
VO = 1Vrms
Ta = 25˚C
VCC = ±
15V
Input Short
DIN/AUDIO
Total Flat
1
f
=
1kHz
Ta = 25˚C
0.05
0.03
0.02
0.3
0.1
CUT
6
0.01
0.03
0.01
4
0.005
Boost
0.003
0.002
2
0.003
FLAT
20
0.001
0
0
0
5
10
15
20
25
30
4
8
12
16
20
24
–20
0
40
Supply Voltage VCC (V)
Supply Voltage VCC (V)
Output Voltage VO (dBV)
ICs for Audio Common Use
AN7337N
THD – f
VO – f
40
20
VCC =15V
10 –1
10 –2
10 –3
10 –4
10 –5
Vin =1Vrms
Ta =25˚C
FLAT
0
CUT
– 20
– 40
100
1k
Frequency f (Hz)
10k
10
100
1k
10k
100k
Frequency f (Hz)
■ Application Circuit
560Ω
10kΩ
VO
3.3µF
–
+
–
+
22µF
+VCC
–VCC
+
–
22µF
20
19 18
17 16 15 14
13 12
11
10
AN7337N
1
2
3
4
5
6
7
8
9
47kΩ
0.056µF
0.018µF 0.0082µF
22µF
1µF
0.33µF
0.12µF
Boost
Flat
Cut
VR : 50kΩ
–
+
3.3kΩ
–
+
+
–
33µF
3.3µF
SG
ICs for Audio Common Use
AN7337N
■ Pin Descriptions
Pin No.
Pin Name
Pin Voltage (V)
Description
Equivalent Circuit
1
+ VCC
1, 3,
5, 7,
9, 11,
13
Center electric
potential (GND)
Input
Resonance circuit input pin
– VCC
IN
16
2
1
2, 4,
6, 8,
10, 12,
14
Center electric
potential (GND)
Resonance circuit negative feed-
back pin
+ VCC
Negative Feedback
– VCC
IN
33kΩ
Center electric
potential (GND)
Output buffer circuit non-inverting
input pin
33µF
15
15
16
Non Inverting Input
Inverting Input
16
+VCC
Center electric
potential
Center electric
potential (GND)
Output buffer circuit inverting
input pin
–VCC
OUT
+VCC
–
+
17
Center electric
potential (GND)
17
Output
Output buffer circuit putput pin
–VCC
18
19
20
Positive Power Supply
GND
+15
0
Positive supply pin
GND pin
Negative Feedback
–15
Negative supply pin
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