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SM5903CF Dataheets PDF



Part Number SM5903CF
Manufacturers Nippon Precision Circuits Inc
Logo Nippon Precision Circuits Inc
Description compression and non compression type anti-shock memory controller
Datasheet SM5903CF DatasheetSM5903CF Datasheet (PDF)

SM5903CF NIPPON PRECISION CIRCUITS INC. compression and non compression type anti-shock memory controller Overview The SM5903CF is a compression and non compression type anti-shock memory controller LSI for compact disc players. The compression level can be set in 4 levels, and external memory can be selected from 4 options (1M, 4M, 4M× 2, 16M). It operates from a 4.5 to 5.5 V supply voltage range. Features - 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, rear-pac.

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SM5903CF NIPPON PRECISION CIRCUITS INC. compression and non compression type anti-shock memory controller Overview The SM5903CF is a compression and non compression type anti-shock memory controller LSI for compact disc players. The compression level can be set in 4 levels, and external memory can be selected from 4 options (1M, 4M, 4M× 2, 16M). It operates from a 4.5 to 5.5 V supply voltage range. Features - 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, rear-packed format ⋅ Wide capture function pre lim ina (until triple speed available) - System clock input ⋅ 384fs (16.9344 MHz) - Anti-shock memory controller ⋅ ADPCM compression method ⋅ 4-level compression mode selectable 4-bit compression mode 2.78 s/Mbit 5-bit compression mode 2.22 s/Mbit 6-bit compression mode 1.85 s/Mbit Full-bit non compression mode 0.74 s/Mbit ⋅ 4 external DRAM configurations selectable 16M DRAM (4M × 4 bits ×1,refresh cycle 2048 cycle) 4M DRAM (1M × 4 bits ×1 or ×2) 1M DRAM (256k × 4 bits ×1) - Microcontroller interface ⋅ Serial command write and state read-out ⋅Data residual quantity detector: 15-bit operation, 16-bit output ⋅ Forced mute - Extension I/O Microcontroller interface for external control using 5 extension I/O pins - +4.5 to +5.5 V operating voltage range - Schmidt inputs All input pins (including I/O pins) except CLK (system clock) - Reset signal noise elimination Approximately 3.8 µs or longer (65 system clock pulses) continuous LOW-level reset - 44-pin QFP package (0.8 mm pin pitch) Ordering Information SM5903CF 44pin QFP ry NIPPON PRECISION CIRCUITS-1 SM5903CF Package dimensions (Unit: mm) 44-pin QFP 12.80 0.30 10.00 0.30 ina ry (1.40) 4 0.17 0.05 12.80 0.30 10.00 0.30 0 to 10 0.20 1.50 0.10 (1.40) 0.80 0.15 0.35 0.10 0.20MAX Pinout (Top View) lim A3 A2 A1 A0 A4 A5 44 43 42 41 40 39 0.15 0.05 C0 .7 0.60 0.20 A6 A7 A8 36 38 37 35 A9 VDD2 UC1 UC2 UC3 UC4 UC5 N.C 34 NRAS 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4 5 6 7 8 9 NWE D1 D0 D3 D2 NCAS A10/ NCAS2 YMCLK YMDATA YMLD YDMUTE SM5 9 0 3 C F pre NTEST CLK VSS 10 11 YSRDATA 12 13 14 15 16 17 18 19 20 21 YBLKCK NRESET ZSENSE YFCLK ZSRDATA ZLRCK YLRCK YFLAG VDD1 ZSCK YSCK 22 NIPPON PRECISION CIRCUITS-2 SM5903CF Pin description Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pine name VDD2 UC1 UC2 UC3 UC4 UC5 N.C NTEST CLK VSS YSRDATA YLRCK YSCK ZSCK ZLRCK ZSRDATA YFLAG YFCLK YBLKCK NRESET ZSENSE VDD1 I/O Ip/O Ip/O Ip/O Ip/O Ip/O Ip I I I I O O O I I I I O I I I Function H VDD supply pin Microcontroller interface extension I/O 1 Microcontroller interface extension I/O 2 Setting L ina ry Microcontroller interface extension I/O 4 Microcontroller interface extension I/O 5 Test pin Ground 16.9344 MHz clock input Audio serial input data Audio serial input LR clock Audio serial input bit clock Left channel Audio serial output bit clock Audio serial output data Audio serial output LR clock Left channel Signal processor IC RAM overflow flag Crystal-controlled frame clock Subcode block clock signal System reset pin Microcontroller interface status output VDD supply pin Forced mute pin Mute Microcontroller interface latch clock Microcontroller interface serial data DRAM address 10 Microcontroller interface shift clock DRAM2 CAS control (with 2 DRAMs) DRAM CAS control DRAM data input/output 2 DRAM data input/output 3 DRAM data input/output 0 DRAM data input/output 1 DRAM WE control DRAM RAS control DRAM address 9 DRAM address 8 DRAM address 7 DRAM address 6 DRAM address 5 DRAM address 4 DRAM address 0 DRAM address 1 DRAM address 2 DRAM address 3 Microcontroller interface extension I/O 3 Test Right channel Right channel Overflow YDMUTE YMLD YMDATA YMCLK A10 pre D0 D1 I/O I/O O O O O O O O O O O O O NWE A9 A8 A7 A6 A5 A4 A0 A1 A2 A3 NRAS Ip : Input pin with pull-up resistor lim I O (NCAS2) NCAS D2 D3 O O I/O I/O Reset Ip/O : Input/Output pin (With pull-up resistor when a input mode) NIPPON PRECISION CIRCUITS-3 SM5903CF Absolute maximum ratings (VSS = 0V, VDD1, VDD2 pin voltage = VDD) Parameter Supply voltage Input voltage Storage temperature Power dissipation Soldering temperature Soldering time Symbol VDD VI TSTG PD TSLD Rating - 0.3 to 7.0 VSS - 0.3 to VDD + 0.3 - 55 to 125 350 255 10 Unit V V ˚C mW ˚C sec tSLD Note. Refer to pin summary on the next page. Values also apply for supply inrush and switch-off. Electrical characteristics Recommended operating conditions Parameter Supply voltage Operating temperature Symbol VDD TOPR (VSS = 0V, VDD1, VDD2 pin voltage = VDD) Rating Unit V ˚C 4.5 to 5.5 DC characteristics Standard voltage:(VDD1 = VDD2 = 4.5 to 5.5 V, VSS = 0 V, Ta = - 40 to 85 ˚C) Parameter Pin Symbol IDD Condition Min Rating Typ 13.5 5.0 0.7VDD 0.3VDD 1.0 0.7VDD 0.3VDD 0.6VDD 0.2VDD IOH = - 0.5 mA IOL = 0.5 mA IOH = - 0.5 mA IOL = 0.5 mA VIN = VDD VIN = 0V VIN = 0V VIN = VD.


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