lc7537an Sanyo Semiconductor Corporation, lc7537an Datasheet

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lc7537an

Manufacturer Part Number
lc7537an
Description
Electronic Volume Control System For Audio Equipment
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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Part Number:
LC7537AN
Manufacturer:
SANYO
Quantity:
1 826
Ordering number : EN2169C
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-
• By virtue of its CMOS structure, the LSI operates under
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.
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.
Volume :
Loudness :
Fader :
Bass/Treble : With CR components externally
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
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.
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.
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).
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.
Electronic Volume Control System for
unit : mm
3052A-QFP48A
Package Dimensions
unit : mm
3025B-DIP42S
unit : mm
3156-QFP48E
LC7537, 7537AN, 7537NE
81096HA(OT)/31293JN/7018YT/6186KI,TS No. 2169-1/11
[LC7537NE]
[LC7537AN]
[LC7573N]
Audio Equipment
SANYO: QIP48E
SANYO: QIP48A
SANYO: DIP42S
CMOS LSI

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lc7537an Summary of contents

Page 1

... TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN LC7537, 7537AN, 7537NE Electronic Volume Control System for Audio Equipment Package Dimensions unit : mm 3025B-DIP42S [LC7573N] unit : mm 3156-QFP48E [LC7537NE] unit : mm 3052A-QFP48A [LC7537AN] 81096HA(OT)/31293JN/7018YT/6186KI,TS No. 2169-1/11 CMOS LSI SANYO: DIP42S SANYO: QIP48E SANYO: QIP48A ...

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Pin Assignments Equivalent Circuit Block Diagram Specifications Absolute Maximum Ratings 25°C, V Item Symbol V – V max DD EE Maximum supply voltage V max Input supply voltage V I2 Allowable power dissipation Pd ...

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... N Output noise V ( Current drain I CC Pin Description ( ) : LC7537AN, 7537NE Pin No. Symbol 12(8) L.IN Main volume control block 5 dB-step attenuator input terminals. These pins should be driven at a low impedance. 31(29) R.IN 9(4) L.C1 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 34(33) R ...

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... NC No connect pins. Absolutely nothing should be connected here. 34, 41, 44) V subterminal. Connected to V (19) V (NC LC7537N, 7537AN, 7537NE Description of Functions (R–V ) and (R–V ) and left open. DD Remarks SS , which Level). CC LC7537AN and LC7537NE only No. 2169-4/11 ...

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Control Timing Data Format LC7537N, 7537AN, 7537NE No. 2169-5/11 ...

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Main Volume Control Block Equivalent Circuit Fader Volume Control Block Equivalent Circuit LC7537N, 7537AN, 7537NE Tone Control Block Equivalent Circuit No. 2169-6/11 ...

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Sample Application Circuits Single Power Supply Note: Bipolar electrolytic capacitors should preferably be employed where no polarity has been indicated. LC7537N, 7537AN, 7537NE Unit (resistance: , capacitance: F) No. 2169-7/11 ...

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Dual ± Power Supply Note: Bipolar electrolytic capacitors should preferably be employed where no polarity has been indicated. LC7537N, 7537AN, 7537NE Unit (resistance: , capacitance: F) No. 2169-8/11 ...

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Single Power Supply Note: Bipolar electrolytic capacitors should preferably be employed where no polarity has been indicated. LC7537N, 7537AN, 7537NE Unit (resistance: , capacitance: F) No. 2169-9/11 ...

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Caution for Pattern Designing LC7537N, 7537AN, 7537NE • Space the patterns between L.IN and L.OUT and those between R.IN and R.OUT as far apart as possible. When forced to design them close together, provide shielding patterns between as illustrated. They ...

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No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property ...

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