LC7537 Sanyo Semicon Device, LC7537 Datasheet
LC7537
Available stocks
Related parts for LC7537
LC7537 Summary of contents
Page 1
... 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- line serial data, including CE, DI, and CLK. Also, due swing of the serial data input voltage, permits the use of a general purpose microcomputer ...
Page 2
... Note: 1. A1000 pF or larger capacitor should be added on between each individual power supply terminal and V 2. When the microcomputer side control signals rise faster than V the DI, CLK, and CE lines. 3. When mounting the QIP package on the board, do not dip the entire package in solder. Only the LC7537NE may be dipped directly in solder during mounting. LC7537N, 7537AN, 7537NE = ≥ ...
Page 3
... 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 ...
Page 4
... These pins are connected to the relevant power supplies. Exercise caution against V CC rising earlier than V 19(15 24(22 2(3, 7) 41(18, 30 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– left open. DD Remarks (R–V ) and and V , which Level). DD ...
Page 5
... Control Timing Data Format LC7537N, 7537AN, 7537NE No. 2169-5/11 ...
Page 6
... Main Volume Control Block Equivalent Circuit Fader Volume Control Block Equivalent Circuit LC7537N, 7537AN, 7537NE Tone Control Block Equivalent Circuit No. 2169-6/11 ...
Page 7
... 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: Ω, capacitance: F) No. 2169-7/11 ...
Page 8
... Dual ± Power Supply Note: Bipolar electrolytic capacitors should preferably be employed where no polarity has been indicated. LC7537N, 7537AN, 7537NE Unit (resistance: Ω, capacitance: F) No. 2169-8/11 ...
Page 9
... Single Power Supply Note: Bipolar electrolytic capacitors should preferably be employed where no polarity has been indicated. LC7537N, 7537AN, 7537NE Unit (resistance: Ω, capacitance: F) No. 2169-9/11 ...
Page 10
... 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 will be effective at the maximum attenuated level (with 10 kHz and higher frequencies). (DIP42S) • ...
Page 11
... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of November, 1997. Specifications and information herein are subject to change without notice. LC7537N, 7537AN, 7537NE No. 2169-11/11 ...