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LC7537AN の電気的特性と機能

LC7537ANのメーカーはSanyo Semicon Deviceです、この部品の機能は「Electronic Volume Control System for Audio Equipment」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC7537AN
部品説明 Electronic Volume Control System for Audio Equipment
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LC7537AN Datasheet, LC7537AN PDF,ピン配置, 機能
Ordering number : EN2169C
CMOS LSI
LC7537, 7537AN, 7537NE
Electronic Volume Control System for
Audio Equipment
Overview
The LC7537N is an electronic control LSI capable of
electronically controlling the volume, balance, loudness,
fader, bass, and treble functions individually with fewer
externally connected component parts.
Features
• Enables controlling the below-listed functions with 3-
line serial data, including CE, DI, and CLK. Also, due
to 0 V to 5 V swing of the serial data input voltage,
permits the use of a general purpose microcomputer.
Volume : Separately controls the Lch and Rch
volume levels across 81 positions over
the 0 dB to –79 dB (in 1 dB steps) range
and –, and consequently also serves
balance control purposes.
Loudness : By virtue of a center tap provided at the
–20 dB position of the volume
controlling ladder resistors, permits
loudness to be controlled with
externally connected CR components.
Fader :
By varying only the rear or front output
level across 16 positions, provides fader
functions (in 2 dB steps over the 0 dB to
–20 dB range, and 5 dB steps over the
–20 dB to –45 dB range, and at –, for
a total of 16 positions).
Bass/Treble : With CR components externally
connected, forms an NF type tone
control circuit (Baxandall type) to
exercise control across 15 positions
over both the bass and treble functions
in 2 dB steps.
• By virtue of its CMOS structure, the LSI operates under
a broad power supply voltage range from +4.5 V to +15
V, permitting the use of either a single or a dual ± power
supply, whichever is preferred.
Package Dimensions
unit : mm
3025B-DIP42S
[LC7573N]
unit : mm
3156-QFP48E
[LC7537NE]
unit : mm
3052A-QFP48A
[LC7537AN]
SANYO: DIP42S
SANYO: QIP48E
SANYO: QIP48A
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
81096HA(OT)/31293JN/7018YT/6186KI,TS No. 2169-1/11

1 Page





LC7537AN pdf, ピン配列
LC7537N, 7537AN, 7537NE
Electrical Characteristics at Ta = 25°C, VDD =+7.5 V, VEE =–7.5 V, VCC =+5 V
Item
Total harmonic
Distortion
Crosstalk
Maximum attenuation output
VR resistance voltage
Output noise
Current drain
Symbol
THD(1)
THD(2)
CT
Vomin(1)
Vomin(2)
RVOL(1)
RVOL(2)
RBASS
RTREBLE
RFADER
VN(1)
VN(2)
IDD
ICC
Condition
VIN = 1 V, f = 1kHz, all flat overall
VIN = 1 V, f = 20 kHZ, all flat overall
VIN = 1 V, f = 1 kHz, all flat, Rg = 1 k
VIN = 1 V, f = 1 kHz, MAIN, VR = , FADER VR =
VIN = 1 V, f = 1 kHz, MAIN, VR = , VDD = 8 V, FADER VR = ,
VEE = VSS = 0 V, C between VSS and GND of L/R = 1000 µF
5 dB-step
1 dB-step
All flat overall (IHF-A) Rg = 1 k
Rg = 1 k, VDD = 8 V, VEE = VSS = 0 V
VDD – VEE = 15 V
VCC = 5 V
min
0.006
60
80
70
12
12
12
12
12
Rating
typ max
0.005 0.01
0.02 %
95
90 dB
80
20 28
20 28
20 28
20 28
20 28
2 10
2 10
1
1
Unit
%
dB
dB
k
k
k
k
k
µV
µV
mA
mA
Pin Description ( ) : LC7537AN, 7537NE
Pin No.
12(8)
31(29)
9(4)
34(33)
10(5)
33(32)
11(6)
32(31)
5(47)
38(38)
4(46)
3(45)
39(39)
40(40)
15(11)
16(9)
14(10)
28(26)
27(28)
29(27)
17(13)
16(12)
18(14)
26(24)
27(25)
25(23)
7(1)
6(48)
36(36)
37(37)
Symbol
L.IN
R.IN
L.C1
R.C1
L.C2
R.C2
L.OUT
R.OUT
L.FIN
R.FIN
L.FOUT
L.ROUT
R.ROUT
R.ROUT
L.B1
L.B2
L.B3
R.B1
R.B2
R.B3
L.T1
L.T2
L.T3
R.T1
R.T2
R.T3
LCT1
LCT2
RCT1
RCT2
Description of Functions
Main volume control block 5 dB-step attenuator input terminals. These pins should be
driven at a low impedance.
Main volume control block 5 dB-step attenuator output terminals. Having been designed
to be open, the step positions will develop errors if at low acceptor impedances, so that as
high load impedances as possible should be provided.
Main volume control block 1 dB-step attenuator input terminals. Theses pins should be
driven at alow impedance.
Main volume control block 1 dB-step attenuator output terminals. Due to the step
positions designed to be open, load impedances as high as possible should be provided to
them, similar to those for the LC1 and RC1.
Fader functions employing mode input terminals. These pins should be driven at a low
impedance.
Fader block output terminals. These pins permit the front and rear sides to be faded out
independently of each other. Attenuations exercised on Lch will be the same as on Rch.
Due to the step positions designed to be open, acceptor impedances as high as possible
should be provided to them.
Bass tone control block terminals. A total of 15 positions have been provided in 2 dB
steps
Treble tone control block terminals. A total of 15 positions have been provided in 2 dB
steps. The VR resistance value is 20 k.
Loudness dedicated terminals. A high-frequency-range correcting C should be put
between CT1 and IN, and low-frequency-range correcting C between CT2 and L–VSS
(R–VSS).
Remarks
VR resistance : 20 k
VR resistance : 20 k
VR resistance : 20 k
VR resistance : 20 k
VR resistance : 20 k
Continued on next page.
No. 5190-3/10


3Pages


LC7537AN 電子部品, 半導体
LC7537N, 7537AN, 7537NE
Main Volume Control Block Equivalent Circuit
Fader Volume Control Block
Equivalent Circuit
Tone Control Block Equivalent Circuit
No. 2169-6/11

6 Page



ページ 合計 : 11 ページ
 
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部品番号部品説明メーカ
LC7537AN

Electronic Volume Control System for Audio Equipment

Sanyo Semicon Device
Sanyo Semicon Device


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