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SM5950AM

Nippon Precision Circuits Inc
Part Number SM5950AM
Manufacturer Nippon Precision Circuits Inc
Description Asynchronous Sample Rate Converter
Published Apr 7, 2005
Detailed Description SM5950AM Asynchronous Sample Rate Converter OVERVIEW The SM5950AM is a digital audio signal asynchronous sample rate co...
Datasheet PDF File SM5950AM PDF File

SM5950AM
SM5950AM

Overview
SM5950AM Asynchronous Sample Rate Converter OVERVIEW The SM5950AM is a digital audio signal asynchronous sample rate converter LSI.
It supports 16/20/24-bit word-length input/output interface data.
It also features a built-in digital deemphasis filter and direct mute functions.
FEATURES Functions I I I I PINOUT (Top view) I I I I I I I I I I L/R 2-channel (stereo) processing Input sample rate range: 20kHz to 100kHz Output sample rate range: 30kHz to 50kHz Operating sample rate conversion ratio (fso/fsi)*1 : 0.
45 to 2.
205 selectable *1: fsi = input sample rate fso = output sample rate Asynchronous input and output clock timing System clock input • Input system clock: 1fsi (LRCI) • Output system clock: 512fso (SCKO input) Deemphasis filter function • IIR-type filter • fsi = 44.
1kHz, 48kHz, 32kHz compatible Direct mute function Through mode operation • Direct connection from input to output Output data clocks (LRCO, BCKO) • Slave mode: external inputs • Master mode: derived from the output system clock (SCKO) Computation round-off processing • Normal round-off 5V tolerant input pins for direct connection to 5V operation devices 3.
3V single supply Package: 24-pin SSOP LRCI BCKI DI TMOD0 RSTN VDD IISI IMOD0 IMOD1 DEEM FS0 FS1 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 LRCO BCKO DOUT SLAVE SCKO VSS IISO OMOD0 OMOD1 TMOD1 THROU DMUTE PACKAGE DIMENSIONS (Unit: mm) Weight: 0.
23g 10.
20 ± 0.
30 10.
05 ± 0.
20 + 0.
15 − 0.
10 0.
05 5.
40 ± 0.
20 Device SM5950AM Package 24-pin SSOP 1.
80 0 to 10 0.
10 ± 0.
10 0.
36 ± 0.
10 0.
10 0.
12 M Note: Dimensions without tolerance are reference values.
NIPPON PRECISION CIRCUITS INC.
—1 + 0.
20 1.
90 − 0.
10 0.
8 0.
50 ± 0.
20 ORDERING INFORMATION 7.
80 ± 0.
30 SM5950AM FEATURES Interfaces I Converter Performance I I Input data format • 2s-complement, MSB-first, L/R alternating serial data • IIS/non-IIS formats Format IMOD0 L H L H H or L IMOD1 L L H H H or L IISI L L L L H I 16-bit MSB-first right-justified 20...


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