SAA2520GP Philips, SAA2520GP Datasheet
SAA2520GP
Related parts for SAA2520GP
SAA2520GP Summary of contents
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DATA SHEET SAA2520 Stereo filter and codec for MPEG layer 1 audio applications Preliminary specification File under Integrated Circuits, IC01 INTEGRATED CIRCUITS August 1993 ...
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... Stereo filtering and codec functions in a single chip MPEG coded interface Filtered data interface Baseband audio data interface LT interface to microcontroller Clock generator Low operating voltage capability. ORDERING INFORMATION EXTENDED TYPE NUMBER PINS (1) SAA2520GP 44 Note 1. SOT205-1; 1996 August 26. CLK24 X22OUT CLK22 X22IN handbook, full pagewidth ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications handbook, full pagewidth FS256 MUTEDAC DEEMDAC ATTDAC V SS URDA SBDIR SBDA SBCL SBWS SBEF handbook, full pagewidth AUDIO AMPLIFIER DAC MICROCONTROLLER August 1993 SAA2520 Fig.2 Pin configuration. ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications PINNING SYMBOL PIN FS256 1 (Filtered)-I input with pull-down MUTEDAC 2 DAC control/output expander DEEMDAC 3 DAC control/output expander ATTDAC 4 DAC control/output expander V 5 supply ground ( URDA 6 unreliable drive processing data; CMOS level ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SYMBOL PIN LTENA 34 LT interface enable; CMOS level LTCNT0 35 LT interface control; CMOS level LTCNT1 36 LT interface control; CMOS level V 37 supply ground ( CLK22 38 22.5792 MHz buffered output CLK24 39 24 ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications handbook, full pagewidth from SAA2521 sub - band samples base band SUB-BAND samples FILTER handbook, full pagewidth sync/coding allocation scale factor MPEG DE– input FORMATTER data quantized samples August 1993 allocation information ALLOCATION & ...
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... MHz oscillator (pins 42 and 43). Similarly a 22.5792 MHz oscillator (pins 40 and 41) is formed by similar peripheral components together with an appropriate crystal (see Fig.6). The component values shown apply only to crystals from the Philips 4322 156 series which exhibit an equivalent series resistance Preliminary specification ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications handbook, full pagewidth Component values apply only to crystals from the Philips 4322 156 series. channel SWS SCL 1 SDA bit : 1 7 MSB Fig.7 Transfer of SDA data (Standard I ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications channel SWS SCL SDA bit : MSB channel SWS SCL 1 FDAC/ FDAF bit : 2 3 MSB August 1993 left 32 bits 18 bits 14 bits LSB Fig.8 Transfer of SDA data (alternative format). ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications channel SWS FSYNC sub-band Baseband Interface Signals The interface between the SAA2520 and the baseband input/output circuitry consists of the following signals: SWS bi-directional SCL bi-directional SDA bi-directional FDIR output The SWS signal indicates the channel of the sample signal (either LEFT or RIGHT) and is equal to the sampling frequency FS ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Interface between SAA2520 and SAA2521 consists of the following signals ILTERED INTERFACE SWS bi-directional SCL bi-directional FDAC bi-directional FDAF bi-directional FSYNC output Filtered data is transferred between SAA2520 filter/codec functions and the SAA2521 using the format shown in Fig ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Table 1 SAA2521 input/output control. FRESET output FDIR output SYNCDAI output Table 2 Frequency examples. BIT RATE SBWS FREQUENCY (k BITS/s) 384 256 192 128 E M NCODE ODE The following modes are supported: Stereo or 2-channel mono with allowable bit rates of 384, 256, 192 and 128 kbits/s ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications FS256 SCL SWS, SDA, FDAF, FDAC, FSYNC output SDA, FDAF, FDAC input Fig.11 Filtered I Notes to Fig.11 T FS256 cycle time ( kHz) s FS256 cycle time (f = 44.1 kHz) s FS256 cycle time ( kHz) ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications FS256 SCL SDA, FDAF, FDAC, FSYNC output SWS, SDA, FDAF, FDAC input Fig.12 Filtered I Notes to Fig.12 t FS256 HIGH time fH t FS256 LOW time fL t SCL HIGH time sH t SCL LOW time ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications FRESET SYNCDAI t d2 FDIR SDA FDAF FDAC Notes to Fig.13 t FRESET HIGH to SYNCDAI HIGH DO t SYNCDAI HIGH time SH t SYNCDAI LOW to FRESET LOW D1 t FDIR hold to FRESET HIGH D2 t FRESET HIGH to FDIR valid ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Notes to Fig.13 after FRESET HIGH t FS256, SWS, SCL change D8 to high impedance before SYNCDAI HIGH t FS256, SWS, SCL remain HIGH D9 impedance after SYNCDAI HIGH SBWS SBCL 1 SBDA bit : 0 0 MSB SBEF Fig ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications MPEG Coded Interface (Sub-band I The MPEG coded data is transferred to and from the SAA2520 using the format shown in Fig.14. Each period of SBWS contains 64 data bits which are used to convey data. The half-period during which SBWS is logic 0 is used to transfer the first 16-bits ( sub-band slot ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SBMCLK SBCL t d1 SBWS SBDA Fig.15 Sub-band I Notes to Fig.15 T SBMCLK cycle time t SBMCLK HIGH time mH t SBMCLK LOW time mL T SBCL cycle time (384 kB/s) c SBCL cycle time (256 kB/s) SBCL cycle time (192 kB/s) ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SBWS SBCL SBDA SBEF SBCL Fig.16 Sub-band I Notes to Fig.16 T SBCL cycle time (see note SBCL HIGH time CH t SBCL LOW time CL t SBWS, SBDA input set-up S1 before SBCL HIGH ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications t d1 Notes to Fig.17 t SBDIR HIGH to SBCL, SBWS, SBDA high impedance D1 t SBCL, SBWS, SBDA after SBDIR LOW high impedance D2 August 1993 HIGH Z 2 Fig.17 Sub-band I S mode switch timing. 20 Preliminary specification ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Microcontroller interface The SAA2520 has an interface connection to the serial interface of a microcontroller. The following signals are used: LTCLK input LTDATA bi-directional LTCNT0 input LTCNT1 input LTENA input The SAA2520 microcontroller interface is enabled only if LTENA (pin 34) is logic 1 ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Bits are copied directly to the corresponding output pins/mode flip-flop. For HOLDCLKOK = logic 1. When CLKOK drops it will remain LOW until set by an encode/decode mode, sample frequency, external 256FS or bit rate index change. ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications I S (LTCNT1 = NTERNAL ETTINGS LOGIC The operation of the codec is controlled by the bits transferred in this mode. Table 8 Internal Settings (LTCNT1 = logic 1, LTNCT 0 = logic 0). msb lsb S15 ... S12 S11 ... S10 ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Table 10 Sample frequency indication. msb Table 11 EMPHASIS indication. msb Before sending internal settings the microcontroller should check whether or not the SAA2520 is ready-to-receive. However, this does not apply for the transfer of internal settings to end a transfer of allocation information ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications Table 13 MODE identification. msb Ready-to-receive indicates whether the SAA2520 is ready to receive allocation, scale factor or internal setting transfers. This should be checked in order to synchronize the transfer of such information. ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications handbook, full pagewidth LTENA LTCNT0/1 LTCLK LTDATA Fig.18 Transfer of data on SAA2520 microcontroller interface. handbook, full pagewidth LTENA 16 bits allocation / scale factor information LTCLKC Fig.19 The LTENA line must return to logic 0 between information transfers. ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications handbook, full pagewidth LTENA LTCNT0/1 LTCLK LTDATA bit : Fig.20 Order of settings and status bits on the SAA2520 microcontroller interface. handbook, full pagewidth LTENA LTCNT0/1 LTCLK LTDATA OUTPUT t delay LTCLK HIGH to LTDATA valid output for bit 0 in 16-bit transfers ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications t el handbook, full pagewidth LTENA LTCLK LTCDATA input LTCDATA output hiZ Notes to Fig.22 t LTENA LOW time eL t LTCLK HIGH time CH t LTCLK LOW time CL t LTENA HIGH to LTCLK HIGH ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications LIMITING VALUES In accordance with the Absolute Maximum System (IEC 134). SYMBOL PARAMETER V supply voltage DD V input voltage I I supply current from supply current input current I I output current ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SYMBOL PARAMETER Input RESET V positive-going threshold tlh V negative-going threshold thl V hystersis hys +I input current I Outputs MUTEDAC, DEEMDAC, ATTDAC, SYNCDAI, FDIR, FRESET, FSYNC, CLK22 V HIGH level output voltage OH V LOW level output voltage ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications AC CHARACTERISTICS 3.8 to 5.5 V unless otherwise specified. amb DD SYMBOL PARAMETER Inputs C input capacitance I X24IN and X22IN f crystal frequency at X22OUT, CLK22 f crystal frequency at X24OUT, CLK24 gm mutual conductance A small signal gain ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SYMBOL PARAMETER FS256 master mode (FS256,SCL and SWS are output) t FS256 HIGH time fH t FS256 HIGH time fH t FS256 HIGH time fH t FS256 LOW time fL t FS256 LOW time fL t FS256 LOW time ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SYMBOL PARAMETER SBMCLK master mode (SBCL, SBWS and SBDA are output) T SBCL cycle time C T SBCL cycle time C T SBCL cycle time C T SBCL cycle time C t SBCL HIGH time ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications PACKAGE OUTLINE QFP44: plastic quad flat package; 44 leads (lead length 2.35 mm); body 2 pin 1 index DIMENSIONS (mm are the original dimensions) A UNIT max. ...
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... Philips Semiconductors Stereo filter and codec for MPEG layer 1 audio applications SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities ...
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... These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. ...