TZA1027HL/V2 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TZA1027HL/V2

Analog current buffer for CD-R and CD-RW systems

Philips Electronics 

Philips Semiconductors

Analog current buffer for CD-R and CD-RW

systems

Preliminary specification

TZA1027

FEATURES

• Eight amplifiers for servo and power calibration

functions

• Gain selector for CD-R and CD-RW discs

• Separate data amplifier for read speed up to thirty times

nominal data speed.

GENERAL DESCRIPTION

The TZA1027 is an analog current buffer IC for CD-R and

CD-RW systems with a 3-spot push-pull tracking system.

The IC interfaces directly to the photo diodes and

TZA1020. A HF current amplifier is implemented to detect

the actual HF data signal.

QUICK REFERENCE DATA

SYMBOL

VDD

Ii(cd)

Ii(sd)

BCAHF

td(f)

GSS

PARAMETER

supply voltage

central diode input current

satellite diode input current

bandwidth

flatness delay

servo satellite detector gain

Tamb

ambient temperature

CONDITIONS

WRON = 1

WRON = 1

Ci = 5 pF

Ci = 5 pF; f = 0.1 to 32 MHz

HG = 1

HG = 0

MIN.

4.5

0

0

72

−

−

−

0

TYP.

5.0

−

−

−

30

32

8

−

MAX. UNIT

5.5 V

3 400

520

−

200

µA

µA

MHz

ps

−

−

70 °C

ORDERING INFORMATION

TYPE

NUMBER

TZA1027HL

NAME

LQFP32

PACKAGE

DESCRIPTION

plastic low profile quad flat package; 32 leads; body 5 × 5 × 1.4 mm

VERSION

SOT401-1

1999 Sep 17

2

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