TZA1020A View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TZA1020A

Pre-amplifiers for CD-RW systems

Philips Electronics 

Philips Semiconductors

Pre-amplifiers for CD-RW systems

Product specification

TZA1020; TZA1020A

Table 11 Control bits for current negain-DAC; note 1

negain4

0

0

0

1

1

1

negain3

0

0

0

1

1

1

negain2

0

0

0

:

code

1

1

1

negain1

0

0

1

0

1

1

negain0

0

1

0

1

0

1

CURRENT negain-DAC

3.125 µA

6.250 µA

9.375 µA

:

100 µA (code + 1)/32

93.750 µA

96.900 µA

100 µA

Note

1. The currents of all DACs is controlled by reference current (IRREF). The given currents are valid at IRREF = −900 µA.

8.1.6 CONTROL BYTE SUBADDRESS 03

Table 12 Control bit for tmdac

tmdac

0

1

DESCRIPTION

DAC test off

DAC test on

Table 13 Control bits for tlnlimit

tlnlim1

0

X

1

tlnlim0

0

1

0

DESCRIPTION

clamp off

clamp on 1 (0.6 V; Tamb = 25°C)

clamp on 2 (1.2 V; Tamb = 25°C)

Table 14 Control bits for current sumref-DAC; note 1

sumref4

0

0

0

1

1

1

sumref3

0

0

0

1

1

1

sumref2

0

0

0

:

code

1

1

1

sumref1

0

0

1

0

1

1

sumref0

0

1

0

1

0

1

CURRENT sumref-DAC

0.468 µA

0.937 µA

1.40 µA

:

15 µA (code + 1)/32

14.06 µA

14.53 µA

15.00 µA

Note

1. The currents of all DACs is controlled by reference current (IRREF). The given currents are valid at IRREF = −900 µA.

2000 Oct 30

11

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