CXD2598Q Ver la hoja de datos (PDF) - Sony Semiconductor

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CXD2598Q

CD Digital Signal Processor with Built-in Digital Servo and DAC

Sony Semiconductor 

CXD2598Q

Pin Symbol

I/O

No.

Description

35 MDP

O 1, Z, 0 Spindle motor servo control output.

36 SSTP

I

Disc innermost track detection signal input.

37 FSTIO I/O 1, 0 Input/output of 2/3 frequency division for the XTAI pin.

38 SFDR O 1, 0 Sled drive output.

39 SRDR O 1, 0 Sled drive output.

40 TFDR O 1, 0 Tracking drive output.

41 TRDR O 1, 0 Tracking drive output.

42 FFDR O 1, 0 Focus drive output.

43 FRDR O 1, 0 Focus drive output.

44 VDD

— — Digital power supply.

45 VSS

— — Digital GND.

46 TEST

I

Test pin. Normally, GND.

47 TES1

I

Test pin. Normally, GND.

48 XTSL

I

Crystal selection input. Low when the crystal is 16.9344MHz; high when the

crystal is 33.8688MHz.

49 VC

I

Center voltage input.

50 FE

I

Focus error signal input.

51 SE

I

Sled error signal input.

52 TE

I

Tracking error signal input.

53 CE

I

Center servo analog input.

54 RFDC I

RF signal input.

55 ADIO

O Analog Test pin. Do not connect anything.

56 AVSS0 — — Analog GND.

57 IGEN

I

Operational amplifier constant current input.

58 AVDD0 — — Analog power supply.

59 ASYO O 1, 0 EFM full-swing output (low = VSS, high = VDD).

60 ASYI

I

Asymmetry comparator voltage input.

61 RFAC I

EFM signal input.

62 AVSS3 — —

Analog GND.

63 CLTV

I

Multiplier VCO1 control voltage input.

64 FILO

O Analog Master PLL filter output (slave = digital PLL).

65 FILI

I

Master PLL filter input.

66 PCO

O 1, Z, 0 Master PLL charge pump output.

67 AVDD3 — —

Analog power supply.

68 BIAS

I

Asymmetry circuit constant current input.

69 VCTL

I

Wide-band EFM PLL VCO2 control voltage input.

–5–

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