SAA7377GP NXP Semiconductors, SAA7377GP Datasheet
SAA7377GP
Available stocks
Related parts for SAA7377GP
SAA7377GP Summary of contents
Page 1
DATA SHEET SAA7377 Digital servo processor and Compact Disc decoder (CD7) Product specifications File under Integrated Circuits, IC01 INTEGRATED CIRCUITS 1998 Jul 06 ...
Page 2
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) CONTENTS 1 FEATURES 2 GENERAL DESCRIPTION 3 QUICK REFERENCE DATA 4 ORDERING INFORMATION 5 BLOCK DIAGRAM 6 PINNING 7 FUNCTIONAL DESCRIPTION 7.1 Decoder part 7.1.1 Principle operational modes of the ...
Page 3
... T storage temperature stg 4 ORDERING INFORMATION TYPE NUMBER NAME SAA7377GP QFP64 plastic quad flat package; 64 leads (lead length 1.6 mm); body 14 1998 Jul 06 2 GENERAL DESCRIPTION The SAA7377 is a single chip combining the functions decoder IC and digital servo IC. The decoder part is based on the SAA7345 (CD6) with an improved error correction strategy ...
Page 4
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 5 BLOCK DIAGRAM handbook, full pagewidth GENERATOR 52 SCL 51 SDA 53 RAB 54 SILD 15 HFIN 17 HFREF FRONT END ...
Page 5
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 6 PINNING SYMBOL PIN ( SSA1 ( DDA1 refT ...
Page 6
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) SYMBOL PIN KILL 43 TEST4 44 DATA 45 WCLK 46 ( DDD2(P) SCLK 48 ( SSD3 CL4 50 SDA 51 SCL 52 ...
Page 7
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) handbook, full pagewidth V SSA1 1 V DDA1 refT ...
Page 8
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7 FUNCTIONAL DESCRIPTION 7.1 Decoder part 7.1.1 P RINCIPLE OPERATIONAL MODES OF THE DECODER The decoding part operates at single-speed and supports a full audio specification. A simplified data flow ...
Page 9
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.3 Data slicer and clock regenerator The SAA7377 has an integrated slice level comparator which can be clocked by the crystal frequency clock times the crystal frequency clock ...
Page 10
Acrobat reader. white to force landscape pages to be ... white to force landscape pages to be rotated correctly when browsing through the pdf ...
Page 11
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.5 Subcode data processing 7.5.1 Q- CHANNEL PROCESSING The 96-bit Q-channel word is accumulated in an internal buffer. The last 16 bits are used internally to perform a Cyclic Redundancy ...
Page 12
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 200 s min W96 7.6 FIFO and error corrector The SAA7377 has a 8 frame FIFO. The error corrector type, with error ...
Page 13
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) Table 2 Output flags ...
Page 14
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.7.3 C ONCEALMENT A 1-sample linear interpolator becomes active if a single sample is flagged as erroneous but cannot be corrected. The erroneous sample is replaced by a level midway ...
Page 15
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.8 DAC interface The SAA7377 is compatible with a wide range of digital-to-analog converters (DACs). Nine formats are supported and are given in Table 4. Figures 11 and 12 show ...
Page 16
Acrobat reader. white to force landscape pages to be ... white to force landscape pages to be rotated correctly when browsing through the pdf ...
Page 17
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.9 EBU interface The bi-phase mark digital output signal at pin DOBM is in accordance with the format defined by the IEC958 specification. The DOBM pin can be held LOW ...
Page 18
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.10 KILL circuit The KILL circuit detects digital silence by testing for an all-zero or all-ones data word in the left or right channel before the digital filter. The output ...
Page 19
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) MOTO1 22 k MOTO1 MOTO1 MOTO2 MOTO1 1998 Jul – – ...
Page 20
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.12.1.3 PWM output mode (4-line) Using two extra outputs from the versatile pins interface possible to use the SAA7377 with a 4-input motor bridge. The timing is illustrated ...
Page 21
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.12.1.4 CDV/CAV output mode In the CDV motor mode, the FIFO position will be put in pulse-width modulated form on the MOTO1 pin (carrier frequency = 300 Hz). The PLL ...
Page 22
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) G 7.13 Servo part 7.13.1 D IODE SIGNAL PROCESSING The photo detector in conventional two-stage three-beam compact disc systems normally contains six discrete diodes. Four of these diodes (three for ...
Page 23
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7 – in max central sys – in max satellite sys RH Where f = 4.2336 MHz. sys V is generated ...
Page 24
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.13.3 F OCUS SERVO SYSTEM 7.13.3.1 Focus start-up Five initially loaded coefficients influence the start-up behaviour of the focus controller. The automatically generated triangle voltage can be influenced by 3 ...
Page 25
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) The sledge is continuously controlled, or provided with step pulses to reduce power consumption using the filtered value of the radial PID output. Alternatively, the microcontroller can read the average ...
Page 26
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.13.6 D EFECT DETECTION handbook, full pagewidth DECIMATION sat1 FILTER sat2 A defect detection circuit is incorporated into the SAA7377 defect is detected, the radial and focus error ...
Page 27
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.13.8.4 Automatic sequencers and timer interrupts Two automatic sequencers are implemented (and must be initialized after power-on): 1. Autostart sequencer: controls the start-up of focus, radial and motor. 2. Autostop ...
Page 28
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.14 Microcontroller interface Communication on the microcontroller interface can be set-up in two different modes: 1. 4-wire bus mode: protocol compatible with SAA7345 (CD6) and TDA1301 (DSIC2) where: a) SCL ...
Page 29
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7 (SUBQREADY-I status LOW to end of subcode read 1 is below 2.6 ms, then t = 13.1 ms (i.e. the microcontroller 2 can read all subcode frames if ...
Page 30
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) RAB (microcontroller) SCL (microcontroller) SDA (microcontroller) SDA (SAA7377) Fig.22 Microcontroller write protocol for registers RAB (microcontroller) SCL (microcontroller) SDA (microcontroller) SDA (SAA7377) Fig.23 Microcontroller write protocol for ...
Page 31
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) RAB (microcontroller) SCL (microcontroller) SDA (SAA7377) Fig.25 Microcontroller protocol for reading Q-channel subcode. RAB (microcontroller) SCL (microcontroller) SDA (SAA7377) Fig.26 SUBQREADY-I status timing when no subcode is read. 1998 Jul ...
Page 32
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) RAB (microcontroller) SCL (microcontroller) SDA (SAA7377) Fig.27 SUBQREADY-I status timing when subcode is read. handbook, full pagewidth SILD (microcontroller) SCL (microcontroller) SDA (microcontroller) SDA (SAA7377) SILD (microcontroller) SDA (microcontroller) Fig.28 ...
Page 33
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) handbook, full pagewidth SILD (microcontroller) SDA (microcontroller) Fig.29 Microcontroller protocol for repeated data in write servo commands. SILD handbook, full pagewidth (microcontroller) SCL (microcontroller) SDA (SAA7377) SILD (microcontroller) SDA (SAA7377) ...
Page 34
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.14.3 S UMMARY OF FUNCTIONS CONTROLLED BY REGISTERS Table 12 Registers REGISTER ADDRESS 0 0000 (fade and attenuation) 1 0001 (motor mode) 2 0010 (status control) 3 ...
Page 35
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) REGISTER ADDRESS 4 0100 (motor gain) 5 0101 (motor bandwidth) 6 0110 (motor output configuration) 7 0111 (DAC output and status control) 8 (PLL loop filter bandwidth) 9 1001 (PLL ...
Page 36
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) REGISTER ADDRESS A 1010 (EBU output) B 1011 (speed control) C 1100 (versatile pins interface) D 1101 (versatile pins interface) E 1110 F 1111 (subcode interface) Note 1. The initial ...
Page 37
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) Table 13 Loop filter bandwidth REGISTER ADDRESS 8 1000 (PLL loop filter bandwidth) Note 1. The initial column shows the power-on reset state. 1998 Jul 06 LOOP DATA BANDWIDTH BANDWIDTH ...
Page 38
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.14.4 S UMMARY OF SERVO COMMANDS A list of the servo commands are given in Table 14. It should be noted that these are not fully backwards compatible with DSIC2. ...
Page 39
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 7.14.5 S UMMARY OF SERVO COMMAND PARAMETERS Table 15 Servo command parameters RAM PARAMETER ADDRESS foc_parm_1 foc_parm_2 foc_parm_3 foc_int 14H foc_gain 15H CA_drop 12H ramp_offset 16H ramp_height 18H ramp_incr FE_start ...
Page 40
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) RAM PARAMETER ADDRESS radcontrol 59H chip_init xtra_preset 4AH cd6cmd 4DH interrupt_mask 53H seq_control 42H focus_start_time 5EH motor_start_time1 5FH motor_start_time2 60H radial_init_time 61H brake_time 62H RadCmdByte 63H osc_inc 68H phase_shift 67H ...
Page 41
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 8 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER V supply voltage DD V maximum Input voltage (any input) I(max) V output voltage (any ...
Page 42
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) SYMBOL PARAMETER Servo analog part ( DDA P D1 D4, R1, R2 INS input reference current refT R external ...
Page 43
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) SYMBOL PARAMETER Digital outputs O : CL4 UTPUT V LOW level output voltage OL V HIGH level output voltage OH C load capacitance L t output rise time r t ...
Page 44
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) SYMBOL PARAMETER 3-state outputs O : CLK, WCLK, DATA UTPUTS AND V LOW level output voltage OL V HIGH level output voltage OH C load capacitance L t output rise ...
Page 45
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) SYMBOL PARAMETER Digital input/output SDA [CMOS NPUT OUTPUT INPUT V LOW level input voltage IL V HIGH level input voltage IH I 3-state leakage current ZO C ...
Page 46
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 10 OPERATING CHARACTERISTICS (SUBCODE INTERFACE TIMING 3 amb SYMBOL PARAMETER Subcode interface timing; see Fig. RCK ...
Page 47
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) handbook, full pagewidth SBSY SFSY (4-wire mode) SFSY (3-wire mode) SFSY RCK SUB 1998 Jul 06 t W(SBSY) t SFSYH t W(SFSY) t cy(frame) t SFSYL 0 d(SFSY ...
Page 48
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 11 OPERATING CHARACTERISTICS ( 3 amb SYMBOL PARAMETER 2 I S-bus timing; see Fig. SCLK (C ...
Page 49
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 12 OPERATING CHARACTERISTICS (MICROCONTROLLER INTERFACE TIMING 3 amb SYMBOL PARAMETER Microcontroller interface timing (4-wire bus mode; writing to ...
Page 50
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7 RAB t dRD SCL SDA (SAA7377) high-impedance Fig.33 4-wire bus microcontroller timing; read mode (Q-channel subcode and decoder status information). handbook, full pagewidth RAB SCL SDA (microcontroller) Fig.34 ...
Page 51
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) handbook, full pagewidth SILD 0.8 V SCL 0 0.8 V SDA (SAA7377) 0.8 V Fig.35 4-wire bus microcontroller timing; read mode (servo commands). handbook, full pagewidth SILD ...
Page 52
Acrobat reader. white to force landscape pages to be ... V 7 2.2 LDON 1 33 100 V DDA ...
Page 53
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 14 PACKAGE OUTLINE QFP64: plastic quad flat package; 64 leads (lead length 1.6 mm); body 2 pin 1 index ...
Page 54
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 15 SOLDERING 15.1 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 ...
Page 55
Philips Semiconductors Digital servo processor and Compact Disc decoder (CD7) 16 DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be ...
Page 56
Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 160 1010, ...