The LC83015E is a digital signal processor IC designed for
medium- and high-class home audio systems, such as AV
amplifiers, mini, super-mini and car audio component systems.
The LC83015E is a part of the LC83010N/NE family. It
features an internal ROM, with a large standard program
library, an internal RAM for user programs and a wide variety of interface capabilities. The standard program library
includes sound-field simulation, theater surround and
karaoke programs.
The LC83015E operates from a 5V supply and is available
in 80-pin QFPs.
Features
• 80 ns cycle time at fs = 48kHz (256 cycles/fs)
• Dual-Harvard architecture allows single-cycle stereo signal integration and playback, with two of each of the following.
· 24 × 16-bit fixed decimal point multiplier.
· 32-bit arithmetic operation and 24-bit arithmetic logic
operation ALU/shifter.
Pitch shift (realized in program RAM)
Vocal mute.
Microphone echo.
• Coefficient ROM.
· Logarithmic conversion coefficients.
• Audio interface.
· 2 input channels compatible with a variety of formats.
· 3 output channels compatible with a variety of 32/64fs
formats.
• External memory interface.
· DRAM interface.
120 ns (maximum) RAS access time.
1Mbyte (256Kbyte × 4) or 256Kbyte (64Kbyte × 4).
1 or 2 units.
· SRAM/ROM interface.
100 ns (maximum) address access time.
1Mbyte (128Kbyte × 8) or 256Kbyte (32Kbyte × 8).
1 unit.
· Pseudo-SRAM interface.
70 ns (maximum) CE access time.
1Mbyte (128Kbyte × 8) or 256Kbyte (32Kbyte × 8).
1 unit.
Package Dimensions
unit:mm
3174-QIP80E
[LC83015E]
17.2
23.2
0.80.8
1.0
64
65
0.8
14.0
80
1.6
124
0.35
20.0
21.6
1.6
0.15
41
40
25
3.0max
2.7
0.8
SANYO : QIP80E
15.6
0.8
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
80101TN (KT)/40893JN No.4013–1/13
LC83015E
· Maximum external memory access per sampling period.
42/32 access for 16- /24-bit, with 2 DRAMs.
51/36 access for 16- /24-bit, with 2 SRAM.
64/42 access for 16- /24-bit, with 1 pseudo- SRAM.
• Serial microprocessor interface.
· 8-bit.
· Input and output synchronization control.
· 8 × 16-bit LIFO register.
• Other functions.
· Interrupt input.
· 4-level stack nesting.
· 12-bit interval timer.
• Compatible with LC83EV015 (PGA120) evaluation IC.
When SELC is LOW, the LC83015E system clock is generated from FS384I. When SELC is HIGH, it is generated
from the free-running oscillator, OSC1. When SACK1 is
LOW, FS384O output is 1/3 of FS128O output. When
SACK1 is HIGH, it is 1/4 of FS128O output. W hen SA CK2
is LOW, the output clock is generated from FS384I, LRCKI
and BCK1. When SACK2 is HIGH, it is generated from the
free-running oscillator, OSC1.
When the LC83015E is used with one DRAM unit, only
D0 to D3 of the data bus are used. When the LC83015E is
used with two DRAM units, SRAM or pseudo-SRAM, D0
to D7 are used.
The typical supply current, I
, is measured with SANYO
DD
Standard Theatre Mode in operation under the input/output
conditions shown in figure 1.
No.4013–9/13
LC83015E
Figure 1. Measurment conditions for I
DD
No.4013–10/13
LC83015E
The LC83015E has three voltage supply pins (VDD1 to
VDD3) and four ground pins (VSS1 to VSS4). The connections between these pins must conduct sufficiently to ensure that there are no voltage differences between each of
the voltage supply pins and each of the ground pins when
the device is powered-up. Connections similar to those
shown in figure 2 should be used.
Figure 3 shows the connection of a crystal oscilator to the
LC83015E Table 1 shows oscillator frequencies and capacitances for a Nippon Denpa Kogyo NR-18 crystal oscillator .
Figure 3. Crystal oscillator connection
Table 1. Oscillator frequency selection
)Fp(2C,1C)zHM(ycneuqerfrotallicsO
81882.21
214439.61
01234.81
21438.61
82975.22
6675.42
Figure 2. Voltage supply and ground connection template
No.4013–11/13
LC83015E
LC83015E Development Environment
The following software tools are available.
• LC83015.EXE assembler
• S83015.EXE debugger and simulator
• STI.EXE ROM sorting software for microprocessor
• STO.EXE ROM sorting software for external ROM
The following hardware tools are intended for use with the
LC83015E.
• Simple model evaluation board comprising
PRBD15
D2SP.EXE software
Figure 4. ICE configuration
Figure 5. Model board configuration
No.4013–12/13
Application Example
LC83015E
Note
The LC83015E is in external synchronization mode in this application.
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. 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 August, 2001. Specifications and information herein are subject to
change without notice.
PS No.4013–13/13
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