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| Ordering number : EN*5059A CMOS LSI LC89602 Audio Decoder LSI for Mini-Disk Playback Preliminary Overview 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. Package Dimensions 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 m 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 Maximum supply voltage I/O voltages Operating temperature Storage temperature Soldering temperature resistance Symbol VDD max VI, VO Topr Tstg 10 seconds (pins only) Ta = 25C Ta = 25C Conditions Ratings -0.3 to 7.0 -0.3 to VDD + 0.3 -30 to +70 -55 to +125 260 Unit V V C C C Allowable Operating Conditions at Ta = -30 to 70C, VSS = 0 V Parameter Supply voltage Input voltage Symbol VDD VIN Conditions min 3.6 0 typ max 5.5 VDD Unit V V DC Characteristics at Ta = -30 to 70C, VSS = 0 V, VDD = 4.5 to 5.5 V Parameter Input high-level voltage Input low-level voltage Input high-level voltage Input low-level voltage Output high-level voltage Output low-level voltage Symbol VIH1 VIL1 VIH2 VIL2 VOH VOL Conditions RESET, CCB, CE, CL, TP0 RESET, CCB, CE, CL, TP0 Except for RESET, CCB, CE, CL, and TP0 Except for RESET, CCB, CE, CL, and TP0 IOH = 3 mA, except for DO IOL = 3 mA 2.4 0.4 0.7 VDD 0.3 VDD min 0.8 VDD 0.2 VDD typ max Unit V V V V V V No. 5059-2/6 LC89602 Block Diagram No. 5059-3/6 LC89602 Pin Assignment No. 5059-4/6 LC89602 Pin Functions Pin No. 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 45 46 47 48 49 50 Symbol VDD VSS DO DI CE CL -- SREQ SEPF SACK SWR VDD VSS SDIN7 SDIN6 SDIN5 SDIN4 SDIN3 SDIN2 SDIN1 SDIN0 -- VSS VDD -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- VDD VSS CLKI -- BDOUT ADOUT LRCO WDCO BCO ENH I/O -- -- O I I I -- O I I I -- -- I I I I I I I I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- I -- O O O O O O Power supply Ground CPU interface data output CPU interface data input CPU interface chip enable input CPU interface clock input Unused Sound block data request output Sound block data empty flag input Sound block data acknowledge input Sound block data write clock input Power supply Ground Sound block data input Sound block data input Sound block data input Sound block data input Sound block data input Sound block data input Sound block data input Sound block data input Unused Ground Power supply Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Power supply Ground System clock input Unused Serial audio data output B Serial audio data output A LR clock output Word clock output Bit clock output De-emphasis specifier output Function Continued on next page. No. 5059-5/6 LC89602 Continued from preceding page. Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Symbol CCB VSS VDD DPLAY DPAUSE DDOUT TP0 ERR L/R SYNC -- RESET VSS VDD -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- I/O I -- -- I I O I O O O -- I -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- CPU interface type specifier input Ground Power supply Playback specifier input Stop specifier input Digital audio interface output Test input Error specifier output Stereo expansion period output Sound frame clock output Unused Reset input Ground Power supply Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Unused Function s 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. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: 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: 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. s 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 |
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