Ordering number : EN*5059A CMOS LSI LC89602 Audio Decoder LSI for Mini-Disk Playback Preliminary Overview Package Dimensions The LC89602 is an audio decoder LSI for mini-disk playback units. This LSI implements the processing that precedes the D/A converter in playback-only mini-disk players. That is, the LC89602 receives data in sound frame units from a mini-disk data decoder LSI (such as the Sanyo LC89610), expands the audio signal and decoder that signal directly to a D/A converter. This audio expander LSI accepts audio data that has been compressed by a factor of about 5 to 1, and expands that data to audio data that is equivalent to that from a CD player, namely 16-bit quantized data with a 44.1 kHz sampling frequency. Since this expansion consists of complex operations involving discrete cosine transformations and digital filtering, if the computations performed on this 16-bit data were performed with a 16-bit precision, the arithmetic errors associated with the calculations would result in arithmetic noise in the lower bits and a full 16 bits of precision would not be acquired. Inversely, increasing the number of registers and the bus width to improve the precision of the arithmetic would increase the size of the circuit and the power required. The LC89602 was optimized to achieve both the low power required by portable units as well as the high-precision arithmetic required by home units. unit: mm 3174-QFP80E [LC89602] SANYO: QIP80E Features • Stereo audio expansion implemented in a single chip • High-precision arithmetic using a 24-bit multiplier • Expanded dynamic range provided by a block floatingpoint circuit • Two output systems and independent attenuators built in • Digital audio outputs with a 20-bit data width and digital audio interface outputs • Low power design implemented in a 0.8 µm CMOS process • CCB CPU interface • Low-voltage operation (VDD = 3.6 to 5.5 V) • Package: QIP80E SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN N2494MO No. 5059-1/6 LC89602 Specifications Absolute Maximum Ratings at VSS = 0 V Parameter Symbol Maximum supply voltage I/O voltages Conditions Ratings Unit VDD max Ta = 25°C –0.3 to 7.0 V VI, VO Ta = 25°C –0.3 to VDD + 0.3 V °C Operating temperature Topr –30 to +70 Storage temperature Tstg –55 to +125 °C 260 °C Soldering temperature resistance 10 seconds (pins only) Allowable Operating Conditions at Ta = –30 to 70°C, VSS = 0 V max Unit Supply voltage Parameter Symbol VDD Conditions min 3.6 typ 5.5 V Input voltage VIN 0 VDD V max Unit DC Characteristics at Ta = –30 to 70°C, VSS = 0 V, VDD = 4.5 to 5.5 V Parameter Symbol Conditions Input high-level voltage VIH1 RESET, CCB, CE, CL, TP0 Input low-level voltage VIL1 RESET, CCB, CE, CL, TP0 Input high-level voltage VIH2 Except for RESET, CCB, CE, CL, and TP0 Input low-level voltage VIL2 Except for RESET, CCB, CE, CL, and TP0 Output high-level voltage VOH IOH = 3 mA, except for DO Output low-level voltage VOL IOL = 3 mA min typ 0.8 VDD V 0.2 VDD 0.7 VDD V V 0.3 VDD V 0.4 V 2.4 V No. 5059-2/6 LC89602 Block Diagram No. 5059-3/6 LC89602 Pin Assignment No. 5059-4/6 LC89602 Pin Functions Pin No. Symbol I/O 1 VDD — Power supply Function 2 VSS — Ground 3 DO O CPU interface data output 4 DI I CPU interface data input 5 CE I CPU interface chip enable input 6 CL I 7 — — Unused CPU interface clock input 8 SREQ O Sound block data request output 9 SEPF I Sound block data empty flag input 10 SACK I Sound block data acknowledge input 11 SWR I 12 VDD — Power supply 13 VSS — Ground 14 SDIN7 I Sound block data input 15 SDIN6 I Sound block data input 16 SDIN5 I Sound block data input 17 SDIN4 I Sound block data input 18 SDIN3 I Sound block data input 19 SDIN2 I Sound block data input 20 SDIN1 I Sound block data input 21 SDIN0 I 22 — — Unused Ground Sound block data write clock input Sound block data input 23 VSS — 24 VDD — Power supply 25 — — Unused 26 — — Unused 27 — — Unused 28 — — Unused 29 — — Unused 30 — — Unused 31 — — Unused 32 — — Unused 33 — — Unused 34 — — Unused 35 — — Unused 36 — — Unused 37 — — Unused 38 — — Unused 39 — — Unused 40 — — Unused 41 VDD — Power supply 42 VSS — 43 CLKI I Ground System clock input 44 — — Unused 45 BDOUT O Serial audio data output B 46 ADOUT O Serial audio data output A 47 LRCO O LR clock output 48 WDCO O Word clock output 49 BCO O Bit clock output 50 ENH O De-emphasis specifier output Continued on next page. No. 5059-5/6 LC89602 Continued from preceding page. Pin No. Symbol I/O 51 CCB I Function CPU interface type specifier input 52 VSS — Ground 53 VDD — Power supply 54 DPLAY I Playback specifier input 55 DPAUSE I Stop specifier input 56 DDOUT O Digital audio interface output 57 TP0 I Test input 58 ERR O Error specifier output 59 L/R O Stereo expansion period output 60 SYNC O Sound frame clock output 61 — — Unused 62 RESET I 63 VSS — 64 VDD — Power supply 65 — — Unused 66 — — Unused 67 — — Unused 68 — — Unused 69 — — Unused 70 — — Unused 71 — — Unused 72 — — Unused 73 — — Unused 74 — — Unused 75 — — Unused 76 — — Unused 77 — — Unused 78 — — Unused 79 — — Unused 80 — — Unused Reset input Ground ■ 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 loss. ■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. ■ 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 provide information as of September, 1995. Specifications and information herein are subject to change without notice. PS No. 5059-6/6